[Repeater-Builder] FS: MASTRII 900 MHz. Repeater + Motorola Mobiles
Greetings, I have a GE MASTRII repeater which was removed from service in the upper 800 MHz. band available; perfect for moving to 900 amateur service available. It is in a 4' GE cabinet, with a base station power supply. I will sell the repeater alone if you're not interested in the cabinet or power supply. There's also a spare amp lying about; condition unknown. Also available are three 900 MHz. Motorola Maxtrac mobiles which can be modified to the ham band. Several friends and I invested in this equipment a few years ago...the project isn't making progress so we'd like to liquidate it. Make an offer; this stuff needs to go. I can deliver to the Shelby, NC hamfest over Labor Day weekend. Thank you, Robin Midgett K4IDC
[Repeater-Builder] Lead Acid Batteries Available At Shelby, NC Hamfest
Greetings, I have a small inventory of deep cycle lead acid batteries to offer. These are model SD 11, 2 volt at 200Ah batteries made by Fiamm. Here's a link to the info sheet: http://www.fiammamerica.com/media/productdocuments/76916255862720088431SD%20SDH%20%20Family.pdf These batteries were removed from service this year on a contract basis. The contract stipulates that one weak cell in the pack is cause for the entire pack to be replaced, so there's lots of good batteries in the packs. Unlike many wet cell batteries, these are weigh only 45lbs. each, so 270 lbs for a 12 volt string. I can deliver to the Shelby, NC hamfest over Labor Day weekend. Since these batteries take up considerable space and payload capacity (not to mention the other issues), I'd rather not haul more of them than necessary, so I'd like to make arrangements in advance. I'm asking $200 for a set of six batteries. The electrolyte levels are all good, the batteries are being charged and will be load tested prior to delivery. Please contact me off list if you'd like more information. Thank you, Robin Midgett K4IDC
Re: [Repeater-Builder] Used Outdoor Repeater Cabinets?
On the Tower Stuff For Sale list today: (please reply to Blake, NOT me. From: "Blake Bowers" <[EMAIL PROTECTED]> Mailing-List: list [EMAIL PROTECTED]; contact [EMAIL PROTECTED] I have 12 outdoor cabinets, they appear to be made by Tyco, with what Looks like 5100 btu heating and 12k cooling units on them. HVAC made by McLean. About 6 foot tall, 3 foot by 3 foot base. These are NEW old stock, on pallets and skids, in Florida. Loading can be done, but buyer MUST arrange their own shipping. About 695 lbs each. $1200.00 each if you take all. 1500.00 each otherwise. Pictures available. They look like they were used for battery plants, due to the wiring, they appear to have a charger also. 220 vac input. At 03:46 PM 12/8/2008, you wrote: >Our club recently bought a cabinet from these folks: > >http://www.ddbunlimited.com/OD-50DX-outdoor-nema-enclosures.htm > >We were very pleased with the way it was built and is has been in >service for about 3 months now. > >Not cheap (around $1500) - but a very good cabinet. > >73 - Jim W5ZIT > >--- On Mon, 12/8/08, Alexander N Tubonjic <[EMAIL PROTECTED]> wrote: >From: Alexander N Tubonjic <[EMAIL PROTECTED]> >Subject: [Repeater-Builder] Used Outdoor Repeater Cabinets? >To: Repeater-Builder@yahoogroups.com >Date: Monday, December 8, 2008, 3:16 PM > >Does anyone know of any sources for used outdoor repeater cabinets? >I've gotten permission from a local tower owner to locate an amateur >repeater on their tower but one of the stipulations was no access to >the existing equipment room. After a quick search of Tessco I see the >cheapest outdoor enclosure is going for around $2k. Does anyone know >where one could be found for cheap? Any information is greatly >appreciated, thanks. >Alex > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-336-7091 cellular 615-301-1642 home [EMAIL PROTECTED] Radio Gear For Sale: http://www.people.vanderbilt.edu/~robin.midgett/index.htm
Re: [Repeater-Builder] VHF Engineering
I have a large format scanner and a full version Adobe Acrobat 8. I can & will scan the manual into a searchable .pdf (acrobat) and submit it for posting on the website, then return the documents to you if you like. I have a 220 VHF Engineering repeater, but no documentation...would LOVE to have the info and make it available. I would even offer a deposit against the materials if necessary.. At 07:51 AM 11/18/2008, you wrote: >I have two(2) full sets of mauals and schematics >(receivers,transmitters, CORs, controlers, and power supply) for VHF >Engineering Repeaters. It also has the programing information. I >would like to donate one set for use and publication on our site for >all to use but do not know how. Please contact me and trll me if it >is needed and hw I may send it for use if it is. Thank You AA4JI member. > > > > > > >Yahoo! Groups Links > > > Thank you, Robin Midgett K4IDC
Re: [Repeater-Builder] Re: Free RCA Repeater
Hi David, I have a few of these available near Nashville, TN if you're interested; see my web page below, prices are very negotiable, and I'm happy to remove the Zetron controllers if you don't want them. We could arrange to meet near South Pittsburgh, TN if you like; it's just off I-24 on the northwest side of Chattanooga. At 01:29 PM 8/31/2008, you wrote: >--- In Repeater-Builder@yahoogroups.com, "kf8yk" <[EMAIL PROTECTED]> >wrote: > > > > Cleaning out the basement, found a RCA 500 UHF repeater. If > anyone could use this, it's free for the asking. Pick up in > Cleveland, Ohio or I'll ship it if you pay the shipping cost. The > PA, PS, exciter/receiver and control shelf have all been removed > from the cabinet, so if you only need a particular piece just ask. > > > > There's a set of service manuals too. > > > > 73, > > > > Eric KF8YK > > > > >Is the repeater still available? >Thanks & 73, >David, WI4L Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] Radio Gear For Sale: http://www.people.vanderbilt.edu/~robin.midgett/index.htm
[Repeater-Builder] MASTRII Repeaters Available
Offers considered.. I have several MII UHF machines available, still tuned to the 461.xxx commercial band, and an 860 MHz. machine. Details at http://www.people.vanderbilt.edu/~robin.midgett/G.E.%20MASTRII%20UHF%20Repeaters/MASTRII%20UHF%20Repeaters.htm Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] Radio Gear For Sale: http://www.people.vanderbilt.edu/~robin.midgett/index.htm
[Repeater-Builder] FT-857 Remote Base w/o Control Head, Control Head Available?
Hi, Do any of you know if a Yaesu FT-857D will operate as a remote base without the control head? The control head of my 857 was stolen from my vehicle last week; just exploring options. If any of you know of a control head that may be available, perhaps from a damaged 857, I'd like to acquire it. Yaesu doesn't sell the control heads separately. Thanks, Robin
Re: [Repeater-Builder] Who's fixing Service Monitors these days?
Here's a company I've found very helpful for such: Ken Knowels Auburn Electronic Labs Work: 270-542-6000 Fax:502-542-7706 Work Address: 12345 Bowling Rd (Highway 68/80 Auburn, KY 42206 Notes: IFR 1500 repair; Auburn is a few miles east of Russelville, KY At 01:46 PM 6/14/2008, you wrote: >Re: Who's fixing Service Monitors these days? > >A fried just asked me if I know any business (or person) fixing >service monitors? He's got a Marconi 2955b he's like to try and >have serviced by ___? > >Any help from the group...?thanks in advance for your replies. > >cheers, >s. > > >-------- > > > >Yahoo! Groups Links > > > Thank you, Robin Midgett K4IDC
[Repeater-Builder] FS: 900MHz. /V\ Maxtrac Mobiles...updated
Someone on the list asked what model Maxtracs I have available; here 'tis: D37MWA5GB7AK (supposed to be a 30 watt radio; has large heat sink); also marked HUF1076A D27MWA5GB7AK (supposed to be a 12 watt radio; has small heat sink); also marked HUF1075A I have two each of these radios. I don't have any other parts or accessories for these mobile radios. A couple of friends and I gave $260 for the lot at Dayton a few years ago. The repeater is still available, also. Greetings, I have a GE MASTRII repeater which was removed from service in the upper 800 MHz. band available; perfect for moving to 900 amateur service available. It is in a 4' GE cabinet, with a base station power supply. I will sell the repeater alone if you're not interested in the cabinet or power supply. There's also a spare amp lying about; condition unknown. Also available are four 900 MHz. Motorola Maxtrac mobiles which can be modified to the ham band. Several friends and I invested in this equipment a few years ago...the project isn't making progress so we'd like to liquidate it. Make an offer; this stuff needs to go. Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] Radio Gear For Sale: http://www.people.vanderbilt.edu/~robin.midgett/index.htm
[Repeater-Builder] FS: 900MHz. MII Repeater + /V\ Maxtrac
Greetings, I have a GE MASTRII repeater which was removed from service in the upper 800 MHz. band available; perfect for moving to 900 amateur service available. It is in a 4' GE cabinet, with a base station power supply. I will sell the repeater alone if you're not interested in the cabinet or power supply. There's also a spare amp lying about; condition unknown. Also available are four 900 MHz. Motorola Maxtrac mobiles which can be modified to the ham band. Several friends and I invested in this equipment a few years ago...the project isn't making progress so we'd like to liquidate it. Make an offer; this stuff needs to go. Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] Radio Gear For Sale: http://www.people.vanderbilt.edu/~robin.midgett/index.htm
[Repeater-Builder] FS: 900 MHz. GE MASTERII & Maxtrac Mobiles Dayton
Hi All, I have a 900 MHz. MASTERII repeater available; working, removed from commercial service about two years ago, not modified into the ham band yet. It is in a GE cabinet, with doors and base station power supply. To sweeten the pot, I have four Maxtrac mobiles, also not yet modified. I can deliver to Dayton. $675 for the lot, offers considered. Thank you, Robin Midgett K4IDC
[Repeater-Builder] 220 Tx & Rx Cavity Filters For Sale @ Hamvention
Greetings, I have several 220 transmitter filter cavities which were part of the 220-222 band after it was commercialized for sale. These cavities are made by Aerial Facilities Limited in the U.K., part number 04-000214. The Tx filters are rated for 1.2dB insertion loss. with a Q of 9500 from 180 to 225 MHz. They are designed for rack mounting, and take up 7 rack units, each weighing slightly less than 17lbs each. I have the spec sheet on these from the manufacturer, who has now been merged with another company. There are also a number of Rx cans of a different make which were used as a receiver multi-coupler in the same 220 system. I will have to gather more info on those. All of these cans will work nicely in a 223-224 MHz. ham repeater system. The cavities are priced at $175 each; negotiable in quantity. I can deliver to Hamvetion next weekend; I'll have spaces in the flea market. Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] Radio Gear For Sale: http://www.people.vanderbilt.edu/~robin.midgett/index.htm
Re: [Repeater-Builder] Fiberglass Tube Wanted
Hi Howard, I see you've had several responses in addition to mine. If you're still on the hunt, I have a couple of VHF Station Master type antennas available which I'll probably have for sale in the flea market at Dayton. The fiberglass is in great shape on them; you could replace the guts with your antenna. Make an offer.. At 08:36 AM 4/8/2008, you wrote: >Hello to all. I am looking for a source for a fiberglass tube for a >home brew colinear antenna of the "Stationmaster" type. Any >suggestions appreciated. > >Howard W2AFD > > > > > > >Yahoo! Groups Links > > > Thank you, Robin Midgett K4IDC
Re: [Repeater-Builder] To DIN or not to DIN
Hi Tedd, I think typically DIN connectors are used in higher power situations (EME comes to mind) where the relatively small amount of current carrying metal used for N connectors just can't support the power pushed through the contacting surface area. DIN connectors solve this by having a relatively large contacting surface area. For repeater use, I don't think DINs are necessary. At 01:28 PM 4/3/2008, you wrote: >Just wondering how many of you guys are using 7/16" DIN connectors >instead of "N" connectors for major or minor cable runs? > >Pro's and Con's?? > >Tedd Doda, VE3TJD >Lazer Audio and Electronics >In the ESSO service plaza at exit 268 >off HWY 401 in Ontario, Canada >Phone: 519-513-0377 > >My idea of a Symphony 8 Pistons playing >the tune my rig > > >---- > > > >Yahoo! Groups Links > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] Radio Gear For Sale: http://www.people.vanderbilt.edu/~robin.midgett/index.htm
[Repeater-Builder] Keying IC-706 Remote Base?
I'd like to hear from anyone who uses an IC-706 as a remote base on a repeater regarding keying the 706 via one of the 706 rear panel connectors..how did you do it? The one we have isn't working as easily as it appears it should... Thank you, Robin Midgett K4IDC
[Repeater-Builder] WTB: Extender Card MSR-2000
Hi builders, In an effort to help keep the local 2m machine on the air, I'd like to acquire an extender card (or two) for the Motorola MSR-2000 repeater. Do any of you have some available? Thanks, Robin Midgett K4IDC
Re: [Repeater-Builder] Two Repeaters, One Antenna
It can be done. I used to work with a UHF commercial system which combined multiple repeaters to a common antenna. The cans were built & tuned by TxRx; rather expensive in terms of money and insertion loss. At 01:38 PM 2/20/2008, you wrote: >Guys, > >I've found a site for my most recent Ham repeater project. Nice farm >tower on a hill, clean of RF colo, etc. The farm repeater is a 463.xxx >+ machine and I'm on 444.825. It is set up with nice hardline and a 16 >bay folded dipole antenna (not sure the mfg., but he thinks it's DB). >Anyway, assuming that thing has useable SWR on my TX frequency (I've >had that happen before, not holding my breath), does anyone have any >ideas about the viability of running both repeaters on the same >antenna but connecting the duplexer outputs together in to the common >feedline? I've done no math, and not a lot of thinking, but is this >one of those times when I might run odd multiples of 1/4 wave coax to >a T at the hardline or something? Both repeaters have BpBr duplexers >and both have isolators on their outputs. > >73 DE N0MJS > >-- >Cort Buffington >H: +1-785-838-3034 >M: +1-785-865-7206 > > > > > > > > > >Yahoo! Groups Links > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] Radio Gear For Sale: http://www.people.vanderbilt.edu/~robin.midgett/index.htm
Re: [Repeater-Builder] Re:Combination of Omni and Yagi antenna
Not true at all. Since the gain of a Yagi comes from focusing the RF energy in a particular region, and that gain is measured against either an omni-directional antenna (dBi - gain in dB compared to an isotropic antenna) or against a standardized dipole (dBd), the two antennas in question in the original post (the G7 - an omni, and a Yagi) can't have the same gain. http://whatis.techtarget.com/definition/0,,sid9_gci214570,00.html The two antennas do need to present the same impedance at the frequency of interest in order for the power dividers to work as designed. The power dividers are based on the impedance matching characteristics of the 1/4 wavelength line section. If the impedance of the two antennas don't match, the power division will be skewed accordingly. The products previously offered by ZD Engineering back in the 90s all took advantage of this. ZD Engineering was bought out by another organization, and I think those people are part of this list IIRC... At 07:50 PM 2/19/2008, you wrote: >I was told once a long time ago that the antennas need to be the same gain, >Is this true? > >Rod > > > > > >Yahoo! Groups Links > > >
Re: [Repeater-Builder] Combination of Omni and Yagi antenna
I can supply .pdf files of power divider construction (from both ARRL & RSGB). These are how I built mine; they work. Maybe post in the files section? If so, who do I send them to? At 12:05 PM 2/19/2008, you wrote: >Does any know is it possible to use two antenna with a matching >line, I mean a G7 and a 12 element Yagi, on 220 MHZ, my G7 have a >very good coverage in farther distance, but at a closer distance >there is a dead spot due to tall building blocking on the way, but >if I use the yagi pointed to that particular area, I have good >signal, but to use a voting system "urn:schemas-microsoft-com:office:office" /> > >It s going cost me a lot, I was thinking of using two antenna >combination at the same time, > >The question now is how to calculate the exact length of the >matching cable to go for 222.660 MHZ. any suggestion is highly >appreciated. Thank You. > > > > > > > >de W4CSO > > > > > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] Radio Gear For Sale: http://www.people.vanderbilt.edu/~robin.midgett/index.htm
Re: [Repeater-Builder] star washers, hardware source
AFAIC... The world's greatest hardware store has it's entire inventory online... www.mcmaster.com search on "tooth lock washers"; choose your material, then your style, then your size, give them your address & CC number, they pack the order within 20 minutes (no joke). At 08:39 PM 2/17/2008, you wrote: >Can someone tell me >Are these things stainless or zinc? Stainless star washers sure are >hard to find :-( >Thanks, >Robert > > > > > > > >Yahoo! Groups Links > > >
Re: [Repeater-Builder] GE MII in western TN
Hi Scott, Nashville is where I work; Mt. Juliet is where I live. I have MII experience, and know folks who have far more experience than I. Have your friend contact me. FWIW, Nashville is in middle TN; not the west. Jackson & Memphis are in the west end of the state.. At 12:38 PM 2/17/2008, you wrote: >Fellows, > >A commercial user has contacted me about fixing his GE MII station >in western TN. (Close to Nashville) > >He is willing to ship the station to me, but he would like to try to >find someone close to him that might be willing to take a look at it >first. He has contacted a few local shops, but no one wants to touch >anything "that old". He is having low audio issues, so it *should* >be an easy fix. > >Is there any one on this list that is close to him and might be >willing to o take a look-see. I'm sure that there will be >compensation for your time and expertise. > >Scott > >Scott Zimmerman >Amateur Radio Call N3XCC >474 Barnett Road >Boswell, PA 15531 >- Original Message - >ps Links
[Repeater-Builder] 220 MHz. Amplifier?
I have a friend who's looking for a 80 or so watt amplifier for his 224.84 MHz. repeater. Is there a recommended product for this application these days? Mods or kit building are welcomed, as are leads on plug-n-play solutions. Thank you, Robin Midgett K4IDC VHF+ Glutton EM66se 6, 2, 222, 432, working on the rest!
Re: [Repeater-Builder] "home brewing" to the extreme....
Wow... I forwarded this to several of my friends who would appreciate such..here's one response: I miss the part where he mines for the elements in glass and metals... At 09:29 AM 1/4/2008, you wrote: >Thanks to Rod Wallberg KB8DNS for this pointer > >Trust me guys, you really want to watch this video all the way through... > ><http://paillard.claude.free.fr/> > >The Babelfish translation service is here: ><http://babelfish.altavista.com/babelfish/tr> > >Plug in his URL, select "French to English" and hit "Translate". > >And in true McGuyver style, he starts out with a Swiss army knife. > >Mike WA6ILQ Thanks, Robin Midgett K4IDC Radio Gear For Sale: http://www.people.vanderbilt.edu/~robin.midgett/index.htm
Re: [Repeater-Builder] 220 repeater antennas
Obtain an old 224 & cut it down by ~28%; that should drive it close to the 222 band. At 11:12 AM 12/3/2007, you wrote: >Hey guys, >Alright, i need a 220 repeater ntenna. Any ideas? > From what i can see, the db222 and 224 antennas are no longer being >made. >Any thoughts on that or what to get? > >Thanks, >Jed > > > > > >Yahoo! Groups Links > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] Radio Gear For Sale: http://www.people.vanderbilt.edu/~robin.midgett/index.htm
Re: [Repeater-Builder] New 900 MHz machine
Would you be interested in a 900 MHz. MASTRII and/or four Motorola mobiles? At 11:15 AM 11/15/2007, you wrote: >I know I posted this to the AR902Mhz group, but >Im not sure whether I posted this here also... If not, I apologize. > >I have finally completed construction on my >927.5250 repeater. Components consist of: > >* Glenayre GL-Line paging station cabinet, >power supply, and PA Heat Sink / cooling fan >* Motorola 800 MaxTrac receiver (converted to 902) >* Motorola GTX transmitter/exciter >* Communications Specialists TP-3200 controller panel >* Custom-built isolator / duplexer (from Jeff DePolo) >* Motorola STF2520A 150W Paging Power Amplifier >(isolator removed and re-mounted on the Glenayre heat sink) >* Decibel BD586-Y omni antenna (6 dBd) >* Andrew LDF4-50 feedline (approx. 50 ft.) > >This repeater makes right at 100W output to the >antenna. Photos of the station during >construction and as a finished product have been posted at the groups site. > >I want to thank everyone who assisted me with >the construction of this station from >technical information to parts, moral support, >etc... I certainly couldnt have done it >without al of your help! I also want to >publicly thank Ryan K9ZOE for providing me with >the use of his 900 repeater station on my pair >until I could complete this project. > >The repeater is currently planned for deployment >tomorrow weather permitting. (Or should I say, come hell or high water...) > >73 and thanks again! >Mark N9WYS > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] Radio Gear For Sale: http://www.people.vanderbilt.edu/~robin.midgett/index.htm
Re: [Repeater-Builder] 222 Mhz
Hamtronics still offers 220 repeater strips & kits; http://www.hamtronics.com/ At 02:25 PM 11/6/2007, you wrote: >A lot of guys are just using old midland crystal radios if you can find >them. > >Those work better than hamtronics. > >Keith, KB7M wrote: > > > > > > I've built several repeaters over the years, but only for the 2m and > > 70cm bands. > > > > In a moment of insanity, I purchased a Wacom 222Mhz duplexer and now I > > realize that 222 Mhz radios suitable for repeater operation are not > > readily available. :-( > > > > I see that folks have documented methods for converting VHF high band > > MASTR II and Micor radios for 222 Mhz. Unfortunately, I don't have > > either radio in my stash of radios. I DO have some VHF Mitreks, some > > UHF Micors, and one VHF MASTR Executive II radio. Can any of these be > > converted to 222 Mhz? Does anyone have an already converted radio that > > they would be willing to trade for something? I know that the > > repeater-builder guys have already converted radios forsale, but I'd > > like to find a way to do it for less than the $700 that they want for > > them if I can. > > > > -- > > Keith McQueen > > [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> > > > > > >-- >Jay Urish W5GM ex. KB5VPS > >ARRL Life MemberDenton County ARRL VEC >N5ERS VP/Trustee > >Monitoring 444.850 PL-88.5 146.92 PL-110.9 > > > > > > >Yahoo! Groups Links > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] Radio Gear For Sale: http://www.people.vanderbilt.edu/~robin.midgett/index.htm
[Repeater-Builder] /\/\ Paging Amp Available...6m Compatable..spoken for
The amp has been spoken for. I have an old Motorola paging amp available which will go to the 6m FM ham band easily. It's in middle TN currently; FREE to anyone who'll come get it. The PSU will probably need some work, but it should be good for parts at least. Check the pics on my web site. Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] Radio Gear For Sale: http://www.people.vanderbilt.edu/~robin.midgett/index.htm
[Repeater-Builder] MASTRII 860 MHz. Repeater & /\/\ Mobiles Available
I've just added pics of an available MASTRII 860 MHz. repeater to my web page. I also have several Motorola 860 MHz. mobiles available. I'd consider a package deal on the lot. I can ship. Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] Radio Gear For Sale: http://www.people.vanderbilt.edu/~robin.midgett/index.htm
[Repeater-Builder] /\/\ Paging Amp Available...6m Compatable
I have an old Motorola paging amp available which will go to the 6m FM ham band easily. It's in middle TN currently; FREE to anyone who'll come get it. The PSU will probably need some work, but it should be good for parts at least. Check the pics on my web site. Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] Radio Gear For Sale: http://www.people.vanderbilt.edu/~robin.midgett/index.htm
[Repeater-Builder] For Sale: RCA 500 Series UHF Repeaters
Hi, I have several RCA UHF repeaters available for sale..cheap. These are working units removed from commercial service in 2005. Most have a Zetron controller installed in the cabinet; those can be had as an option with the repeater. Service literature is also available. These machines are old to be sure, but they're very reliable. Some say the RCA audio is second to none. I have a friend in Georgia who has several of these on the air, and prefers them to the more commonly used Motorola and G.E. gearto each his own. I'm asking $75 each for the repeaters, $175 with a Zetron controller. They need to go, I need the space. http://www.people.vanderbilt.edu/~robin.midgett/index.htm Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] Radio Gear For Sale: http://www.people.vanderbilt.edu/~robin.midgett/index.htm
Re: [Repeater-Builder] Re: Celwave Stationmaster part identification help needed - RFS is useless
Hi Eric, It appears that a faulty installation of the jumper at the sidearm is the beginning of the problems, and eliminating all the adaptors you can is the other component. Regarding repairing the antenna: is it feasible to make your own jumper pig tail (perhaps from super flex) and permanently solder one end to the antenna feed point? That would eliminate connectors that are inaccessible at the antenna. Make the jumper long enough to reach the tower, and ensure it is well attached to the stand off bracket. If the radials are what I recall, they're easy if you have the dimensions. IIRC, they're simple flat stock stainless or aluminum pieces with rounded edges, kind of resembling metal tongue depressors with a sharp angle bend in one end. I could fab them for you if you'd like. At 06:06 PM 9/7/2007, you wrote: >I called RFS this afternoon. Sad times, indeed. First of all no one >there could identify the connector/adapter part. Second of all, they >claim "no spare parts available" for Stationmaster antennas. I even >tried to buy a set of radials for a PD455 that has lost them, and >they don't even offer them separately! > >Anyone have a bad UHF Super StationMaster that they want to sell off >the radials or coaxial connector/adapter from? > >To top matters, the antennas aren't even built in the states anymore, >and are contracted out to a non-RFS company. One more nail in our >industrial coffin! > >One another note - has anyone run a PD455 with and without the >radials, and noted the difference in performance? > >Eric >KE2D > > >--- In Repeater-Builder@yahoogroups.com, "kk2ed" <[EMAIL PROTECTED]> wrote: > > > > Good Evening, > > > > I have a PD455 Super Stationmaster that is about 12 years old. I > > recently replaced it due to and SWR issue. I suspected a jumper > > issue. But since it is so high up on a tower, I didn't want to take > > any chances while having the climbers rig the tower, and pay twice, > > so I went ahead and replaced the antenna as well as the jumper. > > > > Well, come to find out, the problem was that the LDF4-50 jumper >came > > loose from the side arm, and the stress pulled the center pin in on > > the N connector, thus causing an arc condition inside the N female > > connector at the bottom of the antenna. To make matters worse, the > > actual N Female termination was half unscrewed from the bottom of >the > > antenna. > > > > Once on the ground, I decided to unscrew it out completely. To my > > suprise, it looks like the antenna is actually terminated into > > something resembling a UHF male connector embedded into the end of > > the inner assembly, and a UHF female to N female adapter is screwed > > in at the factory, providing the N female termination as ordered >I'm > > guessing that if some other termination (DIN or UHF) is ordered, a > > different adapter is screwed in. > > > > Anyone familiar with this adapter, or know where I can obtain said > > replacement adapter? I have some standard UHF female - N female > > barrel adapters, but they are much shorter and not of the quality > > like the Celwave unit. I don't want to trust a cheap adapter at >500ft > > in the air! > > > > I'll call RFS when I get a chance, but based on recent >correspondence > > with them, I don't hold much hope getting any support from them. >Sad > > part is their old factory in Marboro NJ was a mile from my office - > > in the early 90's telecom boom days I used to drive my truck there > > and pick 30 Statiomasters up at a clip, no cardboard tubes needed! > > Now their old office and testing grounds is a strip mall, and the > > factory land has been surrounded by million dollar homes! > > > > > > Eric > > KE2D > > > > > > > > > >Yahoo! Groups Links > > > Thanks, Robin Midgett K4IDC VHF+ Glutton EM66se
Re: [Repeater-Builder] Re: Free to a good home (free except you pay shipping)
let me guess...you're going fishing and need an anchor At 06:23 PM 8/6/2007, sgreact47 wrote: >Wes, > >Great, I will get the Mocom 70 radio over to Mike's place. Mike will >do the shipping. > >Enjoy, and thank you, > >Will >Rebuilding Spectras and others.. > > >--- In Repeater-Builder@yahoogroups.com, Richard W Bazell Jr ><[EMAIL PROTECTED]> wrote: > > > > Great Mike. Will take that Mocom 70 Package . Sounds realy good. > Let me know by e-mail ([EMAIL PROTECTED]) Money you need & list of other > Motorola Equipment. > > > > Wes AB8KD > > > > >Yahoo! Groups Links > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] Radio Gear For Sale: http://www.people.vanderbilt.edu/~robin.midgett/index.htm
Re: [Repeater-Builder] Need An IFR Service Center
I recommend: Auburn Electronic Labs Work: 270-542-6000 Fax:502-542-7706 Work Address: 12345 Bowling Rd (Highway 68/80 Auburn, KY 42206 Kenneth Knowles is one of the owners/techs. They had a booth in the flea market at Dayton this year. They were very helpful to me over the phone concerning my IFR-1500 some years ago. They have parts in stock, and seemingly plenty of know-how. At 06:47 PM 8/1/2007, you wrote: >Hello all, > > I'm looking for an IFR service center within the United States. > > >Please e-mail me direct if you don't mind. > >[EMAIL PROTECTED] > > >Paul Metzger >K6EH > > > > > > >Yahoo! Groups Links > > > Thanks, Robin Midgett K4IDC VHF+ Glutton EM66se
Re: [Repeater-Builder] Re: Would You Do This?
What a field day site! At 07:57 PM 6/17/2007, you wrote: >By George I have not seen this much talk about one topic for a while. > This as really been an interesting topic. > >I will go in a little more on this. This former AT&T facility was >built in the early in 1950's. It is one of the totally self-contained >facilities with no windows or access to the outside world, expect >through air-tight doors. It 2 stories 1 above and 1 below ground. It >had 3 fuel tanks for its, generator, but here in Texas like most >places 2 of them were removed, as they were underground tanks and AT&T >did not want to pay to have them updated. > >The building plans and the radio license for the station place the top >of the tower at 189'. No lighting or painting required. What is >amazing is that the paint is in very good shape for a station that has >not been in operation since the early 1970's. Yep AT&T has held on to >this site for 30+ years without using it. > >According to records that I have seen, any enviromental issue has been >taken care of, former tower paint, abatement, etc. Plus no >information regarding this not having been done, has been enclosed in >any of the paperwork for the sale of the facility, which I know in >Texas is required to be disclosed, plus in that case, with any >facility that I have dealt with on a business point, the seller is >responsible for all proper repairs, or services to get the facility up >to par. > >Tower climber certification, that is not an issue. If the ownership >of the facility does fall into our hands, it will be actually owned by >our parent group, which is an international emergency response >organization and most members are required to be certified. > >I really have enjoyed all the input from those out there, and if our >dream does come around, I will be sure to come back and update >everyone and include photos of the facility. Maybe one day ya'll >might come down and visit. > > > > > > >Yahoo! Groups Links > > > Thanks, Robin Midgett K4IDC VHF+ Glutton EM66se
[Repeater-Builder] G.E. MASTRII UHF Repeaters Availalbe
I have several MII UHF machines available, still tuned to the 461.xxx commercial band. Can deliver to Dayton. Details at http://www.people.vanderbilt.edu/~robin.midgett/G.E.%20MASTRII%20UHF%20Repeaters/MASTRII%20UHF%20Repeaters.htm Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm
[Repeater-Builder] AM-6154/6155 Amplifiers For Sale
Hello-
I have for sale several clean AM6154 / 6155 amplifiers. The
mainframes are tested for voltages, blower, and function. Cavity
drawers are silver cleaned, ready for installation of your input
circuit. {original input circuits, power sensor and LP filter
removed}. They are in very nice shape with good sockets and brackets,
no corrosion or overheating.
The cavities are without tubes. 4CX400A or the Russian GS-36B tubes
will fit nicely in these amplifiers, and provide stable, reliable
power. The 4CX250 will also work with anode adaptors, which I have a
few of, and can produce more if needed.
I have a lot of spare parts (cavities, time delay relays, various
mech. parts, and a number of extra mainframes w/o modules) plus an
assortment of spare modules.
I have schematics and various modifications for 2m, 1.25m & 70cm in
Adobe Acrobat formats available. Here's a nice site with more info:
http://www.n1rwy.com/am6155.
I'm asking $250.00 each for the amplifiers, and I will crate & ship.
UPS & FedEx (probably DHL also) will take the package with
surcharges; figure on the package being 20" x 10" x 24", and 100 lbs.
from 37122. I'll also deliver free of charge to a mutually convenient
hamfest, (such as Dayton Hamvention) schedule permitting.
Yes, they'll do FM.
Thanks,
Robin Midgett K4IDC
615-322-5836 office - rolls to pager
615-835-7699 pager
615-301-1642 home
[EMAIL PROTECTED]
http://www.people.vanderbilt.edu/~robin.midgett/index.htm
[Repeater-Builder] G.E. MASTRII UHF Repeaters Availalbe
I have several MII UHF machines available, still tuned to the 461.xxx commercial band. Can deliver to Dayton. Details at http://www.people.vanderbilt.edu/~robin.midgett/G.E.%20MASTRII%20UHF%20Repeaters/MASTRII%20UHF%20Repeaters.htm Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm
[Repeater-Builder] GE MASTRII UHF Machines Available
Hi, I have four GE MASTRII UHF repeaters available for sale; removed from commercial service. Details to be gathered soon but not available now. I could deliver to Dayton easily; just wanted to see if there's any serious interest. Thanks, Robin Midgett K4IDC VHF+ Glutton EM66se
Re: [Repeater-Builder] MSR2000 UHF REPEATER PL TONE
On a related issue, do any of you have a couple of 100 Hz. Vibrasponders I could acquire for a 2m MSR2000 project? At 02:36 AM 3/29/2007, you wrote: >PL incode will be all the time , the PL disable is the PL DECODE what the >repeater hears, > >and what you want to turn off and on .. I have full time incode on my >repeater so I don't have to hear the intermod while I drive past a page'n >tower > >Good luck ! > >Rick > >On 28 Mar 2007 at 21:12, Doug wrote: > > > I have just about completed setting up the MSR2000 as per the > > article by K4HAL and WA6ILQ > > and it appears to work just great. I have to interface it to the 7k > > and Doug Hall interface and > > it will be ready to go. All the cabling is done. The only option > > cards left in are the TOT and > > the Station Control card. > > > > However, when I key the radio, it appears the pl tone is being > > transmitted all the time. The > > PL DISABLE switch has no affect on it. Is this normal?? It seems > > unusual to me, but I don't > > think it will hurt the operation. I can kill it if I ground pin 14 of > > the pl board which is > > a dual tone board. However, I want to be able to control the pl > > operation via the 7K. There > > are times when it would be useful. Does anyone have any ideas on > this tone?? > > > > Thanks > > > > 73 > > Doug VE5DA > > > > > >Of all the intelligent animals, Human is the species that is least >likely to learn >from its experience. >That explains why so manny of us have more then one Border Collie ! > >== www.karolinabc.ca == > >Rick,Charlote & Kids >Our Border Collies >Miss Daisy Duke >Sir Red-A-Lot >Miss Elly May >Mr Boots >Mr. Balue >Our Border Collie Message Group >[EMAIL PROTECTED] > > > > > > > > >Yahoo! Groups Links > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm
Re: [Repeater-Builder] Re: 4 bay folded j pole questions
I've been told one way to lengthen the elements is to put a bolt through the middle of the bends (top & bottom) of each element. Aluminum bolts would be preferred. Of course, this does nothing to improve the match, but it may be broad enough. Some experimentation would be in order...there's nothing to loose by trying. BTW, it's NOT a J pole. At 11:55 AM 3/27/2007, you wrote: >At 06:11 AM 03/27/07, you wrote: > > Thanks i found out its a Andrew dB224 - 155-165mhz, i was hoping it > >would be in the 145mhz - 2 meter ham band range but it seems you cant > >adjust this type of antenna. > >Not without a hacksaw and a TIG ? MIG ? welder. > > > > > > > >Yahoo! Groups Links > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm
Re: [Repeater-Builder] RCA connectors NOT for power
who's dumb enough to do that?? At 02:07 PM 3/23/2007, you wrote: >Gotta be better then using one of those 'mini' or 'micro' earphone plug >style connectors! >You know where the center pin shorts to the outer contact briefly while >your inserting/removing? >ZAP! >-- >Jim Barbour >WD8CHL > > > >Robin Midgett wrote: > > Personally I don't like the RCA connector for power use. Assuming the > > female is chassis mounted, as it has been on a number of pieces of > > equipment (DEMI transverters come to mind), that means there's a > > mating male connector with +12VDC on the exposed pin, just looking > > for something to short out with. Granted, it may see very few > > insertions/extractions, but when extracted it exposes a live pin. A > > pigtail on the equipment with a male connector could be used, making > > the power source available on a female inline connector. > > PowerPoles are a much better choice IMHO, and they can be chassis > > mounted with some insulating shoulder washers, like power transistors > > & banana connectors often are. > > > > > > At 11:43 AM 3/23/2007, you wrote: > >> How about using an RCA connector for power? I have a TX/RX Systems > >> preamp that has a male RCA plug threaded into the case to supply it > >> with 12 VDC. > >> > >> Chuck > >> WB2EDV > > > > > >Yahoo! Groups Links > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm
Re: [Repeater-Builder] RCA connectors NOT for power
Personally I don't like the RCA connector for power use. Assuming the female is chassis mounted, as it has been on a number of pieces of equipment (DEMI transverters come to mind), that means there's a mating male connector with +12VDC on the exposed pin, just looking for something to short out with. Granted, it may see very few insertions/extractions, but when extracted it exposes a live pin. A pigtail on the equipment with a male connector could be used, making the power source available on a female inline connector. PowerPoles are a much better choice IMHO, and they can be chassis mounted with some insulating shoulder washers, like power transistors & banana connectors often are. At 11:43 AM 3/23/2007, you wrote: >How about using an RCA connector for power? I have a TX/RX Systems >preamp that has a male RCA plug threaded into the case to supply it >with 12 VDC. > >Chuck >WB2EDV > > > >- Original Message - >From: "Ken Arck" <[EMAIL PROTECTED]> >To: >Sent: Friday, March 23, 2007 11:32 AM >Subject: Re: [Repeater-Builder] Re: LMR feedline revisited and revised! > > > > At 08:25 AM 3/23/2007, you wrote: > > > >>Going back into history... I'm told the original RCA style > connector is one of the better early rf connectors. Heathkit used > to drive hams crazy with it... but it is/was the better animal. > > > > <---Everyone from Motorola to GE to Marconi used RCA plugs/jacks > in lower power RF applications - all the way up through UHF. > > > > Ken > > > > > -- > > President and CTO - Arcom Communications > > Makers of the world famous RC210 Repeater Controller and accessories. > > http://www.arcomcontrollers.com/ > > Coming soon - the most advanced repeater controller EVER. > > Authorized Dealers for Kenwood and Telewave and > > we offer complete repeater packages! > > AH6LE/R - IRLP Node 3000 > > http://www.irlp.net > > > > > > > > > > > > > > Yahoo! Groups Links > > > > > > > > > > > > -- > > No virus found in this incoming message. > > Checked by AVG Free Edition. > > Version: 7.5.446 / Virus Database: 268.18.17/730 - Release Date: 3/22/2007 > > 7:44 AM > > > > > > > > > > >Yahoo! Groups Links > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm
Re: [Repeater-Builder] Repeater Controller Recommendations
Take a look at the Arcom RC-210. It has all the features you mention, plus LOTS more if you want them. The controller kit fits your budget, but the chassis for it is another $100. It supports the Arcom auto patch as an option. If you don't need/want a 3 port controller, it may be more than you want. At 07:52 PM 3/19/2007, you wrote: >Question for the gurus: I am tuning up and donating an E.F. Johnson >CR1100 repeater to the local Ham Club. They have asked me to install >a talking, chirping, beeping type repeater controller (which they >have offered to buy). I work with basic "repeater, one each" type >stuff, so I have no idea where to start. I welcome any opinions of a >repeater controller that meets the following somewhat carefully >thought out criteria: > >1. Reasonably affordable. (a couple hundred bucks or so) > >2. It has to talk, beep and chirp. > >3. It has to have a phone patch. > >4. Well supported. > >5. Reliable. > >6. Not require re-engineering the radio. (Translation: easy installation) > >Feel free to add to this list. > > > > > >Thanks > >Will > > Thanks, Robin Midgett K4IDC VHF+ Glutton EM66se
[Repeater-Builder] MSR2000 Disable LED Dimly Lit..Problem Found
Hi folks, This post is for the benefit of those who may search the archives in the future and therefore avoid or easily recover from the mistake I made. You may recall that last week I posted regarding a dimly lit Disable LED on the station control module of a Motorola MSR2000 repeater station. The "problem" turned out to be that I had mistakenly installed the squelch gate card in the guard tone decoder position of the card cage by mistakeduh. Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm
Re: [Repeater-Builder] Re: ICM Crystals Off Frequency? (More MSR-2000 stories)
Bingo! Thanks George. That is exactly what happened. Apparently if I can find a set (actually a pair; main & back up) of the 5PPM elements I will be in good shape. At 01:43 PM 3/15/2007, you wrote: >When you ordered the crystals, did you specify that they were for a >1095A element? If ICM assumed that they were for a 1088B (.0005%), >that might account for the difference maybe... maybe not ? > >George, KA3HSW / WQGJ413 > > > >-Original Message- > >From: Robin Midgett <[EMAIL PROTECTED]> > >Sent: Mar 15, 2007 2:43 PM > >To: Repeater-Builder@yahoogroups.com > >Cc: [EMAIL PROTECTED] > >Subject: Re: [Repeater-Builder] Re: ICM Crystals Off Frequency? > (More MSR-2000 stories) > > > >Hi Skipp, > >I've looked and not found such an adjustment. The RBTI page shows a > >hidden variable inductor, but that isn't the element I have. The > >element I have is labeled KXN1095A; maybe that's not what I have, but > >that's the label on it. > >This element has the IDC adjustment, and one variable inductor for > >frequency adjustment. There's an access hole in the top of the > >element cover for each. > > > > > > > > >Yahoo! Groups Links > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm
Re: [Repeater-Builder] Re: ICM Crystals Off Frequency? (More MSR-2000 stories)
Hi Skipp, I've looked and not found such an adjustment. The RBTI page shows a hidden variable inductor, but that isn't the element I have. The element I have is labeled KXN1095A; maybe that's not what I have, but that's the label on it. This element has the IDC adjustment, and one variable inductor for frequency adjustment. There's an access hole in the top of the element cover for each. At 10:01 AM 3/15/2007, you wrote: >Hi Robin, > >There is a range adjustment under the cover of In/on some msr-2000 & >mitrek channels. You simply need to range the coarse adjustment >within the ball park. > >Also know the crystals will age and change a bit over the first few >months of operation. > >Some people cut open the channel element top to expose the coarse >range adjustment but I've never bothered. Just know the channel >element cover being on or off will change the output Frequency >quite a bit. So you need to ensure the alignment is checked with the >cover in place. > > >Funny... I had this same problem the last time I bought ICM rocks. >But I don't have this problem when using Bomar crystals. Both >brands of crystals work very well... I just like Bomar's much cheaper price. > >cheers, >skipp > > > Robin Midgett <[EMAIL PROTECTED]> wrote: > > Either I'm missing something or ICM sent me defective crystals. > > I ordered two pairs of crystals to put a MSR-2000 repeater on 147.105 > > Tx / 147.705 Rx. I've tried both Tx crystals in the KXN1095A channel > > element only to find the frequency to end up ~36kHz. high. The > > crystal itself is putting out energy at 12.26180 MHz.; it should be > > 12.25875 MHz. The bag label indicates them to be cut for 12.25875, > > but they don't oscillate at (barely even near) that frequency. > > Should I have to pad the new crystals with a cap to net them on > > frequency? If so, what value? > > > > Thanks, > > Robin Midgett K4IDC > > VHF+ Glutton EM66se > > > > > > > > >Yahoo! Groups Links > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm
RE: [Repeater-Builder] ICM Crystals Off Frequency?
Thanks Bob...glad to see someone else on this list has done what I've done in the past. I too have had no problems putting crystals in elements and having them work properly. The repeater environment is stable; it's co-located with a UHF TV transmitter, and the owner pays close attention to such. I'm NOT trying to cut corners guys, just trying to do what I've had success with in the past. At 09:51 AM 3/15/2007, you wrote: >At 3/14/2007 22:04, you wrote: > >Robin, > > > >I'm guessing that you ordered bare crystals to put into channel > elements that had been previously compensated for other > crystals. It's not surprising that they did not operate properly. > >Wait a minute - he said the new xtals were 36 kHz off frequency @ >147.105 MHz. That's a long ways off, more than you would normally >be able to "warp" them with capacitance. I'm going to go out on a >limb here & say >this has nothing to do with having the elements "matched". > >FWIW, I've rerocked dozens of GE xtal modules & ICOMs over the years >& never had a problem getting the xtals on frequency. Temperature >stability is another issue; I take a different approach by removing >all compensation >in the module & temperature-stabilizing the xtal itself. > >Bob NO6B > > > > > > > >Yahoo! Groups Links > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm
[Repeater-Builder] ICM Crystals Off Frequency?
Either I'm missing something or ICM sent me defective crystals. I ordered two pairs of crystals to put a MSR-2000 repeater on 147.105 Tx / 147.705 Rx. I've tried both Tx crystals in the KXN1095A channel element only to find the frequency to end up ~36kHz. high. The crystal itself is putting out energy at 12.26180 MHz.; it should be 12.25875 MHz. The bag label indicates them to be cut for 12.25875, but they don't oscillate at (barely even near) that frequency. Should I have to pad the new crystals with a cap to net them on frequency? If so, what value? Thanks, Robin Midgett K4IDC VHF+ Glutton EM66se
[Repeater-Builder] MSR-2000 Help Please: Station Control Issue
Hi Guys, This one has me scratching my head; maybe you've seen it before. VHF /\/\otorola MSR-2000, configured for repeater (RT) operation by me. It was originally a line controlled station, not a repeater. I followed the jumper setting in the service manual, and some advice from readers of this list. It transmits and receives on the (still) commercial frequencies. The bug-a-boo seems to be with the station control card. If I power up the station and slide the card in, the transmitter keys immediately, and I note that the Disable LED is dimly lit. Sliding the PL disable switch to the right brings the disable LED to full brightness, transmitter is still keyed. Sliding the line disable switch to the right, the transmitter drops and the disable LED comes to full brightness. If I key the transmitter with the XMIT switch, the transmitter keys, and it will un-key when the XMIT switch is released..as long as the line disable switch is activated (in the disable position). If I key the transmitter via the XMIT switch with the line disable switch the normal (not disabled) position, the transmitter remains keyed after I release the XMIT switch; that's not supposed to happen. The above described behavior takes place with either of two station control modules, so I think the problem is elswhere. While chasing this problem, I noted that pin 19 on the station control module (Line Disable) doesn't go fully to 12V when the transmitter isn't keyed; it hovers around 9 volts. I think this partial path to ground is enough to dimly illuminate the Disable LED. Of course, if I activate the Line Disable switch, it goes to ground as it should & the LED is bright. In reading the control chassis interconnect chart, I see that pin 19 (line disable) of the station control module connects to pin 18 of the DC Transfer card and pin 7 of the Guard Tone card. I removed both of these from the card cage before finding the above described keying problem. Could there be something on the back plane of the control shelf causing this? Thank you, Thanks, Robin Midgett K4IDC VHF+ Glutton EM66se
Re: [Repeater-Builder] Repeater Time Out Award
Many years ago a regular user of our wide area UHF system unwittingly timed out the system. He was driving one of several vehicles (a Suburban, not his) in our annual group trip to Hamvention. Being somewhat unfamiliar with the vehicle's accessories, he shoved the mic into a cup holder on the console, top first. In doing so, he keyed the mic in a continuous state. Some ten minutes later, the rig in the truck timed out, emitting T O in morse, which got his attention. Since several of us were in route and on the system, we heard more conversation between him and his passenger than we cared to... Anyway, later that summer the group had a gathering and presented him with the trophy..a "one size fits all" console accessory for vehicles with a hump in the floor with...cup holders built in! Some creative soul in our bunch rigged it with a huge flashing LED connected to the PTT line of a mic and a battery...with the mic glued into the cup holder. It was a hoot! >I have a Friend who always Times out my Repeater and others , Not >that this is a Bad thing, The Repeaters are being used, He has > > jokingly wondered why No one or I has sent Him a Time out Award. > I looked on line and found nothing can anyone please let me know of > one. I could Print out and Frame . It can be humorous too > > > > > > > > Thanks Don KA9QJG > > > > > > > Ted Bleiman K9MDM > MDM Radio" If its in stock...we've got it!" >P O Box 31353 >Chicago, IL 60631-0353 >773.631.5130 fax 773.775.8096 > > web http://www.mdmradio.com - >email - [EMAIL PROTECTED] > > > > > > > > > > > > > > >Food fight? Enjoy some healthy debate >in the Yahoo! Answers Food & Drink Q&A. >http://answers.yahoo.com/dir/?link=list&sid=396545367 > > > > > >Yahoo! Groups Links > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm
RE: [Repeater-Builder] MSR2000 Squelch Gate Jumpers
Thank you very much Eric. I've flipped through the manual I have twice looking for the page you sent; it's not there. I do have the schematic portion of the SGM, and even the document on the SpectraTAC SGM, but it has a different part number, and I must assume some important differences. The two SGM boards appear very similar though; they probably have the same jumper configurations but I didn't want to head down the wrong path on a hunch. Thanks again; the people on this list really show the amateur radio spirit. At 05:15 PM 2/18/2007, you wrote: >Robin, > >The information on the TRN5324A Squelch Gate Module is in the >MSR2000 Control and Audio manual 6881061E40, behind the Remote >Control tab. Service Manual Revision SMR-5804 replaced the TRN5324A >SGM with the TRN5331B SGM. > >The Control and Audio manual is an important document for any >MSR2000 owner to have. It is still available from Motorola Parts >for about $57, until the stock is depleted. > >I have sent you the image of the PCB layout directly to your e-mail address. > >73, Eric Lemmon WB6FLY > > >-Original Message- >From: Repeater-Builder@yahoogroups.com >[mailto:[EMAIL PROTECTED] On Behalf Of Robin Midgett >Sent: Sunday, February 18, 2007 1:43 PM >To: Repeater-Builder@yahoogroups.com >Subject: [Repeater-Builder] MSR2000 Squelch Gate Jumpers > >Hi guys, >I'm trying to help our local club configure a MSR2000 for our >repeater station. This is my first venture into the MSR2000; my prior >but limited experience is with the Micor & MASTRII stations. >The MSR2000 we have used to have remote control accessories >incorporated into it (guard tone controller & F1 PL control). I've >removed those, and configured the jumpers on the back of the control >chassis for RA (repeater station) operation per the manual. > >I'm now trying to locate all the jumpers on the squelch gate card (we >have TRN5324APR) so that I can set them as needed. When setting the >jumpers on the control chassis, I found it helpful to seek the jumper >locations by looking at both the back plane PCB and/or the manual. >The manual I posess doesn't have (at least I've not yet found it) a >picture of the squelch gate board showing the jumper locations. The >locations are marked on the PCB, but it's a jumbled arrangement with >some of the text obscured by other parts or a smeared silk screen job. >Do any of you know where there's a print of the squelch gate board >online I could view? > >Thanks, >Robin Midgett K4IDC >VHF+ Glutton EM66se > > > > > > > >Yahoo! Groups Links > > > Thanks, Robin Midgett K4IDC VHF+ Glutton EM66se
[Repeater-Builder] MSR2000 Squelch Gate Jumpers
Hi guys, I'm trying to help our local club configure a MSR2000 for our repeater station. This is my first venture into the MSR2000; my prior but limited experience is with the Micor & MASTRII stations. The MSR2000 we have used to have remote control accessories incorporated into it (guard tone controller & F1 PL control). I've removed those, and configured the jumpers on the back of the control chassis for RA (repeater station) operation per the manual. I'm now trying to locate all the jumpers on the squelch gate card (we have TRN5324APR) so that I can set them as needed. When setting the jumpers on the control chassis, I found it helpful to seek the jumper locations by looking at both the back plane PCB and/or the manual. The manual I posess doesn't have (at least I've not yet found it) a picture of the squelch gate board showing the jumper locations. The locations are marked on the PCB, but it's a jumbled arrangement with some of the text obscured by other parts or a smeared silk screen job. Do any of you know where there's a print of the squelch gate board online I could view? Thanks, Robin Midgett K4IDC VHF+ Glutton EM66se
Re: [Repeater-Builder] WTB: MSR-2000 UHF Rx
The only one I've found on eBay is at $42 & change right now with ~3 days to go. At 05:44 PM 2/14/2007, you wrote: >What are they worth these days? I have one spare set of MSR-2000 UHF >boards, one receiver, one exciter - both with channel elements in >the 460/465 MHz range (will tune to the 440 Ham band no problem). I >was just getting ready to put them on ebay, as I used to get $250 >for the pair a few years ago. > >Larry > >-Original Message- > >From: Robin Midgett <[EMAIL PROTECTED]> > >Sent: Feb 14, 2007 9:19 AM > >To: Repeater-Builder@yahoogroups.com > >Subject: [Repeater-Builder] WTB: MSR-2000 UHF Rx > > > >Hi guys, > >I'm helping the Wilson County ARC assemble a pair of VHF MSR-2000 > >repeaters for club use (main and back up). We'd like to incorporate a > >UHF Rx in the second Rx slot of the repeaters as a control input. > >I'd like to know what the band split options are for the UHF MSR-2000 > >repeaters, and which of those are desirable for ham band use. Then > >I'd like to know if any of you have a one or two of those available, > >and for what price, please. > >Additionally, I have various GE & Motorola and RCA gear to trade with > >if there's any interest. I also have some TxRx UHF cavities available. > > > >Thanks, > >Robin Midgett K4IDC > >615-322-5836 office - rolls to pager > >615-835-7699 pager > >615-301-1642 home > >[EMAIL PROTECTED] > >http://www.people.vanderbilt.edu/~robin.midgett/index.htm > > > > > > > > >Yahoo! Groups Links > > > Thanks, Robin Midgett K4IDC VHF+ Glutton EM66se
Re: [Repeater-Builder] Re: WTB: MSR-2000 UHF Rx
Yep, thanks...been watching that one. At 01:38 PM 2/14/2007, you wrote: >There's one on ebay, item #:120085694676. > >That's either an opportunity for you to acquire one - or at least to >follow it up to see what the going price is. > > > > > > > > >Yahoo! Groups Links > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm
[Repeater-Builder] WTB: MSR-2000 UHF Rx
Hi guys, I'm helping the Wilson County ARC assemble a pair of VHF MSR-2000 repeaters for club use (main and back up). We'd like to incorporate a UHF Rx in the second Rx slot of the repeaters as a control input. I'd like to know what the band split options are for the UHF MSR-2000 repeaters, and which of those are desirable for ham band use. Then I'd like to know if any of you have a one or two of those available, and for what price, please. Additionally, I have various GE & Motorola and RCA gear to trade with if there's any interest. I also have some TxRx UHF cavities available. Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm
Re: [Repeater-Builder] IFR 1500 Power Supply
If "fix it yourself" proves less than fruitful, I can recommend Ken Knowels of Auburn Electronic Labs Work: 270-542-6000 Fax:502-542-7706 Address: 12345 Bowling Rd (Highway 68/80 Auburn, KY 42206 I have the service manual; would be willing to help over the phone if you want to try. At 02:49 PM 1/22/2007, you wrote: Does anybody have a spare power supply that they may want to part with. I have a unit that needs the power supply replaced. Mike K7PFJ Thanks, Robin Midgett K4IDC VHF+ Glutton EM66se
Re: [Repeater-Builder] Looking for an 1"5/8 N Female
I have several brand new ones in stock. $60 each, shipped UPS ground. On Mon, 12 Jun 2006 23:18:44 -0500, Vincent Caruso <[EMAIL PROTECTED]> wrote: > Hello Folks, > > I am in need of one Andrews 1-5/8" Female N Connector. > Used in good condition would be fine > If you have more than one I would be interested as well. > The Andrew P/N is L7PNF-RPC > > No DIN Connectors Please > > Thanks in advance > -- Thanks, Robin Midgett K4IDC http://www.people.vanderbilt.edu/~robin.midgett/index.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Help on Arcom RC-110
Jim, I have a working copy...at least it unzips correctly using PKZip. I tried unzipping it with Ken Ward's Zip utility..it wouldn't do the job. The unzipped file is here for you, under "Amateur Radio Gear Info" http://www.people.vanderbilt.edu/~robin.midgett/index.htm At 10:47 AM 5/15/2006, you wrote: > > > > > ><---Hi Jim. Well, we have no connection (nor control) with > NetMedia and you need to contact them directly about their > software. I'm afraid I don't know of an alternate download source > for the software other than them. > > > >Have you tried contacting them? > > > >Ken > > > >Ken, how does Arcom upload the operating firmware into the >RC-110? The checksum error has been present on the file I download >from NetMedia for over two years, as I have been trying to get a >working copy for that long. > >Could I get a copy of the upload program from Arcom that works? > >73 - Jim > > > > > >Yahoo! Groups Links > > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Dayton Goodies For Sale...Avoid Shipping Costs
Hi folks, Dayton provides an opportunity to buy/sell/swap/trade gear and avoid shipping costs. Please have a look at my web page, let me know if there's anything in particular you'd like. Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Good Radio's for Repeater?
I've been following this thread with interest, and have a couple of points which (of course) lead to more questions. The MASTRII RF strips are the same in the repeater chassis and the mobile rigs, band for band from low band to UHF. Flexibility and convenience options (and continuous duty PA issues) aside, why is a MII repeater station better used as a repeater than a MII mobile rig? I don't know if a Micor mobile and Micor repeater use the same RF strips or not..do they? If so, then the same question applies, with the same qualifiers. Same answer? Granted, a reliable repeater is not made from a pair of "whatever you can scrounge" mobile rigs with a controller in the middle. (Maxar comes to mind as something in that category). Also in that line up are amateur radios with 20% duty cycle, or practically anything that says Alinco on it. Where reliability concerns are fewer and convenience issues are greater, then latitude is greater and mobile radios with a controller in the middle (port-a-peaters) become attractive. Thoughts? At 11:55 AM 5/9/2006, you wrote: >TGundo 2003 wrote: > > Correct me if i'm wrong, but isn't an R-100 basically two mobiles in > > a box with a power supply? > >Not really. While it shares a lot with the Maxtrac, it is a unique, from >the ground up repeater. It definitely has a lot less in common with a >Maxtrac then a Flexar repeater has in common with a regular Flexar. >-- >Jim Barbour >WD8CHL > > > > > > >Yahoo! Groups Links > > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Z Matcher schem..jpg
Are the Z matchers in the low band repeater stations too? At 01:47 PM 4/26/2006, you wrote: >Yup.. that schematic, the parts layout, the parts list and photographs I >took of both the UHF and VHF units are on my web page at ><http://w4zt.com/zmatch/> and were posted here 1/25/2006. > >73, Tony W4ZT > > >John J. Riddell wrote: > > > > This may already have been sent but here it is again...the schematic for > > a Z matcher. > > > > John VE3AMZ > > > > Z Matcher schem..jpg > > > > > >Yahoo! Groups Links > > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] 6m heliax duplexer experiment
Good show Mike! Q: What would be the effect of using high quality 75 ohm cable (say double shielded RG-6) for the interconnect cables? At 03:05 PM 4/20/2006, you wrote: >OK folks... have done a minor re-write of the duplexer page with a bunch of >updated data.. >www.k5jmp.us >look for the duplexer link on the left-hand side.. > >moderators, and webmasters of RBTIP heads-up... the URL has changes as >well.. > > 73 >Mike Perryman >www.k5jmp.us > > > > > > > >Yahoo! Groups Links > > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] 6m heliax duplexer experiment
Lathes and the use of them are no problem for me...and I'm state side. At 07:13 AM 4/19/2006, you wrote: >Well, it requires machining custom piston-style capacitors from >brass rod, and teflon rods... If you don't have access to a lathe, >it could be a very expensive approach to the issue. I will post a >"how-to" article for the RBTIP page when everything has been proven >and tested. So far, I only have one of the filters. It is >currently under stability testing, and will take time to evaluate the design. > >I am ordering more teflon rod stock, which has to be shipped to the >UK for machining by my counterpart in the experiment.. Brian has >been extremely helpful, and I could not have gotten this far without >his expertise. > >I will keep folks on the list up to date with our progress... but >it will be a while before I am ready to publish anything.. For the >time being.. initial results are looking very promising!! > 73 >Mike Perryman >www.k5jmp.us > > > > >-Original Message- >From: Repeater-Builder@yahoogroups.com >[mailto:[EMAIL PROTECTED] Behalf Of Robin Midgett >Sent: Tuesday, April 18, 2006 6:45 PM >To: Repeater-Builder@yahoogroups.com >Subject: RE: [Repeater-Builder] Re: Dayton Hamvention > > >Hi Mike, >I'm interested in your efforts..I'm planning to build some 6m heliax >duplexers...please share. > >At 02:23 PM 4/18/2006, you wrote: > >Jeff, > >I am cooking-up a pet project to stabilize the 6m heliax duplexer... And I > >think I have it licked. > >Will let you know how it works out. I have a filter in my repeater under > >test now... even the Brown-Shirts couldn't make this thing move around in > >tuning.. hehehe > > > >mike > > > >-Original Message- > >From: Repeater-Builder@yahoogroups.com > >[mailto:[EMAIL PROTECTED] Behalf Of 'Jeff DePolo WN3A' > >Sent: Tuesday, April 18, 2006 4:12 PM > >To: Repeater-Builder@yahoogroups.com > >Subject: RE: [Repeater-Builder] Re: Dayton Hamvention > > > > > > > Avoiding it like the plague Sir!! > > > >If you don't go, how are you going to earn any Dayton spending money? > > > >WN3A's Las Vegas motto: "There's no such thing as a loser, just winners > >that quit too early." > > > > --- Jeff > > > >-- > >No virus found in this outgoing message. > >Checked by AVG Free Edition. > >Version: 7.1.385 / Virus Database: 268.4.3/317 - Release Date: 4/18/2006 > > > > > > > >-- > >No virus found in this outgoing message. > >Checked by AVG Free Edition. > >Version: 7.1.385 / Virus Database: 268.4.3/317 - Release Date: 4/18/2006 > > > > > > > > > > > > > > > >Yahoo! Groups Links > > > > > > > > > > > > > > > > > > > > > > > >Yahoo! Groups Links > > > > > > > > > >Thanks, >Robin Midgett K4IDC >615-322-5836 office - rolls to pager >615-835-7699 pager >615-301-1642 home >[EMAIL PROTECTED] >http://www.people.vanderbilt.edu/~robin.midgett/index.htm > > > > > > >Yahoo! Groups Links > > > > > > > > > > > >Yahoo! Groups Links > > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Re: Dayton Hamvention
Hi Mike, I'm interested in your efforts..I'm planning to build some 6m heliax duplexers...please share. At 02:23 PM 4/18/2006, you wrote: >Jeff, >I am cooking-up a pet project to stabilize the 6m heliax duplexer... And I >think I have it licked. >Will let you know how it works out. I have a filter in my repeater under >test now... even the Brown-Shirts couldn't make this thing move around in >tuning.. hehehe > >mike > >-Original Message- >From: Repeater-Builder@yahoogroups.com >[mailto:[EMAIL PROTECTED] Behalf Of 'Jeff DePolo WN3A' >Sent: Tuesday, April 18, 2006 4:12 PM >To: Repeater-Builder@yahoogroups.com >Subject: RE: [Repeater-Builder] Re: Dayton Hamvention > > > > Avoiding it like the plague Sir!! > >If you don't go, how are you going to earn any Dayton spending money? > >WN3A's Las Vegas motto: "There's no such thing as a loser, just winners >that quit too early." > > --- Jeff > >-- >No virus found in this outgoing message. >Checked by AVG Free Edition. >Version: 7.1.385 / Virus Database: 268.4.3/317 - Release Date: 4/18/2006 > > > >-- >No virus found in this outgoing message. >Checked by AVG Free Edition. >Version: 7.1.385 / Virus Database: 268.4.3/317 - Release Date: 4/18/2006 > > > > > > > >Yahoo! Groups Links > > > > > > > > > > > >Yahoo! Groups Links > > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Looking for N connector jam nuts
Hang on Jeff...I might have just what you need. Let me check at home tonight. At 01:53 PM 4/11/2006, you wrote: >I'm trying to find about 40 hex jam nuts for bulkhead N connectors. The >thread on N connectors is 5/8-24, and most of the jam nuts are 3/4" hex, >roughly 1/8" thick. I'm trying to find stainless steel. I've tried a >number of places on line, including McMaster-Carr and others, but came up >empty at all but one place, and they quoted me $10.50 EACH!???!? Anyone >have a favorite vendor that they could recommend? > > --- Jeff > > >Jeff DePolo WN3A - [EMAIL PROTECTED] >Broadcast and Communications Consultant > > > > > > > >Yahoo! Groups Links > > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] OT - Jeep Cherokee
As an additional resource, check the archives of the Mobile-Portable group (QTH.com). There's a well of experience and knowledge about such topics in that group. At 02:19 AM 4/5/2006, you wrote: >Yes, a slightly off topic question. > >I recently acquired a 1992 Jeep Cherokee with the 4L engine & 4 speed >automatic transmission. Anyone have any experience to know if I should expect >to have any RFI problems from this vehicle? > > >I want to put the following bands of radios in it: >HF (10-75 meters) >6 meters >2 meters >440 MHz >902 MHz >CB (11 meters) > >Any other advice from those who have had Jeep Cherokees for mounting radios in >the Cherokee would be appreciated. > >thanks > > > > > > > >Yahoo! Groups Links > > > > Thanks, Robin Midgett K4IDC VHF+ Glutton EM66se Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] OT..Kind of..Flat Bed Scanner Opinions Sought
Hi, I have a significant collection of service manuals for various commercial two-way radios which I'd like to scan into Adobe Acrobat and make available via the Repeater Builder web site. The makes and models include RCA 500, 700 & 1000 VHF & UHF, and G.E. models from MASTR Exec through MASTRIII, Phoenix, MVS, and others. I'd like recommendations on flat bed scanners suitable for scanning these documents. I have two now that use the USB interface, but they're slow, and they only accommodate 8-1/2" x 11" paper. A relatively fast scanner with a larger surface (for those fold out sheets) would be nice. I suspect someone on the list knows of such a machine that they'd recommend. P.S. Purely as a preemptive measure, please don't ping me for a list of the manuals I have available just yet. I haven't gotten that far into organizing them. Rest assured I'll be offering them to the ham community later this year. Flat bed scanner recommendations, anyone? Thanks, Robin Midgett K4IDC http://www.people.vanderbilt.edu/~robin.midgett/index.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Folded Dipoles for 6m Repeaters; Stacking for Gain?
Hi, I'm interested in learning from anyone with experience in stacking folded dipoles for gain on a 6m repeater. I have privileges at a few 200'+ towers in Tn, so there's plenty of room for arrays. (former AT&T long lines sites) Does anyone on the list have pearls of wisdom they'd like to share on this subject? Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] crackle in a repeater tower
Short of tightening all the leg joints, I don't know about finding the source of this type problem, but I have seen AM broadcast towers with copper jumpers wired across the leg joints to help prevent the same type of problem. The jumpers were connected with ring terminals soldered to copper braid, and the ring terminals were screwed to the legs with stainless steel sheet metal screws. The jumpers weren't weather proofed, oddly enough. I don't know if the jumpers were installed with the tower or if they were a cure for a problem that occurred after installation. At 01:12 AM 3/22/2006, you wrote: > Hi guys .Is there a way that you can locate loose bolts or fittings in a > tower by having a transmitter txing on the tower and checking the tower > with a spectrum anayzler with a beam for interference on other > frequencies .I have a tower that crackles through VHF repeaters that are > operating on the site and sometimes it affects uhf repeaters on site as > well but i still havent found where it is coming from .It has to be > something loose as it is worst on windy days any sugestions would be great > >Thank You, >Ian Wells, >Kerinvale Comaudio, ><http://www.kerinvalecomaudio.com.au/>www.kerinvalecomaudio.com.au Thanks, Robin Midgett K4IDC VHF+ Glutton EM66se Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] cable tv hardline loss question
Approximately 3dB/100 feet. The 3/4" stuff is much better for 450 MHz. At 07:23 PM 3/20/2006, you wrote: >Can someone estimate for me, the approximate loss of typical half inch cable >TV hard line at 450 mHz? > >tnx >td >wb6mie > > > > > > > >Yahoo! Groups Links > > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] cable tv hardline loss question
Pardon my previous incorrect response..I was confused. At 05:57 AM 3/21/2006, you wrote: >tony dinkel wrote: > > Can someone estimate for me, the approximate loss of typical half > inch cable > > TV hard line at 450 mHz? > >CommScope .500 (1/2 inch) P3 cable is rated at 1.56 dB per 100 feet at >68 degrees F. > ><http://www.commscope.com/docs/td_manual_1003.pdf> > >75 to 50 ohm transitions can be made by following this article: ><http://www.repeater-builder.com/rbtip/matchingstubs.html> > >Kevin Custer > > > > > > > > > >Yahoo! Groups Links > > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Motorola Micro 1
I've seen this on the message list a few times now..just what is a Motorola micro repeater? Do you possilbly mean MICOR? On 3/19/2006 7:52:19 PM, ke4ovn ([EMAIL PROTECTED]) wrote: > Hello Group: > Looking on information on A motorola micro repeater, 2 tube final Model Number-B93rcb-31058.On 2meter band now, Tube final drop from 250watts to 30 watts. Need to find a manual number so I can troubleshoot. Thanks, Robin Midgett K4IDC VHF+ Glutton EM66se Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Linking Suggestions Please
I agree with the others. Run some shielded audio wire between the two, have a ball. Consider using gray PVC conduit. At 06:45 PM 3/19/2006, you wrote: >Hi, >Here's the deal. I have two sites...Site one is where my 440 hub >repeater is located. Site two is where I'm planning to put a 220 >repeater. The distance between the two is about 20-30 yds. >I need to find a way to link the two together. Doing it on 440 is out >for several reasons. I could use 900 with a couple of GTX900s or >similiar but that seems to be a total waste not to mention would cost >$250-$300. Seems like there should be an alternative to spending that >kind of money. I also need this to work without attracting a lot of >attention, ie...putting up antennas outside. The radios would need to >be able to do CTCSS or DCS. > >Someone suggested using telemetry radios. Anyone have any experience >with those? Someone else said I might be able to do it with hts on low >power. I have been thinking about 1.2 GHz but can't locate anything >that would work. > >Your suggestions? > >Thanks >Mike K4IJ > > > > > > > > > >Yahoo! Groups Links > > > > Thanks, Robin Midgett K4IDC VHF+ Glutton EM66se Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] 6mtr duplexer
That's the same split (500 kc) as WB5WPA designed the heliax duplexer forthere shouldn't be any reason it won't work in the U.K. At 05:42 AM 3/18/2006, you wrote: >Hi > >yes Iam runmning 500Kc split 51.250 rx and 50.750 tx that is what the >powers that be in the UK issue > >73 > >Steve >- Original Message - >From: "Neal Newman" <[EMAIL PROTECTED]> >To: >Sent: Saturday, March 18, 2006 8:42 AM >Subject: Re: [Repeater-Builder] 6mtr duplexer > > > > The Heliax duplexer works great with a 1 mhz Split... but I think he is > > Running a 500Khz split > > He will need either a higher Q type can Or more than 6 Heliax's for > > the isolation > > > > > > Dick wrote: > > > > >Steve: > > > > > >A friend built one of trhese heliax 6 m duplexers and swears by it. > > > > > >73, > > > > > >Dick > > > > > >- Original Message - > > >From: steve > > >To: Repeater-Builder@yahoogroups.com > > >Sent: 15 March, 2006 13:33 > > >Subject: [Repeater-Builder] 6mtr duplexer > > > > > > > > >Hi > > >can anyone recommend a cheapish 6mtr duplexer, not a home > > >made heliax one. Tx freq is 50.750 Rx 51.250 > > >I did play with a heliax one and it was a lot of trouble, going off tune, > > >causing desense etc,etc. Big problem is Iam in the UK > > >and prices are very expensive, around 900 UK pounds. > > > > > > > > >Thanks > > > > > >Steve > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >YAHOO! GROUPS LINKS > > > > > > Visit your group "Repeater-Builder" on the web. > > > > > > To unsubscribe from this group, send an email to: > > > [EMAIL PROTECTED] > > > > > > Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. > > > > > > > > > > > > > > > > > > > > >Yahoo! Groups Links > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Yahoo! Groups Links > > > > > > > > > > > > > > > > > > -- > > No virus found in this incoming message. > > Checked by AVG Free Edition. > > Version: 7.1.385 / Virus Database: 268.2.4/283 - Release Date: 16/03/06 > > > > > > > >Yahoo! Groups Links > > > > Thanks, Robin Midgett K4IDC VHF+ Glutton EM66se Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Re: 6mtr duplexer
I'm not, but he's waaayy too proud of it. At 01:41 PM 3/16/2006, you wrote: >OK, thanks. > >Now 95% of the people on this list can relax because they live too far >away to go get it. > >Chuck >WB2EDV > > > > >[EMAIL PROTECTED] wrote: > > Northwest Florida. Niceville > > > > Will > > KC4YBZ > > > > > > > > > > [EMAIL PROTECTED] wrote: > > > > And the equipment is located where? > > > > Chuck > > WB2EDV > > > > > > > > > > [EMAIL PROTECTED] wrote: > > > All this 6 meter stuff reminds me that I have a GE Mastr II > > lowband > > > repeater on 45 Mhz, with WP-604-C cans and a 4 bay folded dipole > > > array for sale. > > > > > > > > > > > > > > > > > > > > > > YAHOO! GROUPS LINKS > > > > * Visit your group "Repeater-Builder > > <http://groups.yahoo.com/group/Repeater-Builder>" on the web. > > > > * To unsubscribe from this group, send an email to: > >[EMAIL PROTECTED] > > > <mailto:[EMAIL PROTECTED]> > > > > * Your use of Yahoo! Groups is subject to the Yahoo! Terms of > > Service <http://docs.yahoo.com/info/terms/>. > > > > > > > > > > > > > > >Yahoo! Groups Links > > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Re: 6mtr duplexer
We in the States have secondary access to 70cm as well...also behind the military. We tolerate RFI from an air force base radar on the input to our wide area UHF repeater system regularly. At 12:07 PM 3/16/2006, you wrote: >steve wrote: > > Hi > > > > OH how I wish I lived in the USA. In the UK we can't do any of > what you say, > > no links, no split tx rx infact our 70Cm band is on a secondary basis, the > > military have priority and no new > > 70Cm rptrs have be licenced for a good few months. > > > > 73 > > > > Steve > >He's from Finland... > > > - Original Message - > > From: "Erik Finskas" <[EMAIL PROTECTED]> > > To: > > Sent: Thursday, March 16, 2006 7:51 AM > > Subject: Re: [Repeater-Builder] Re: 6mtr duplexer > > > > >> .. > >> Erik OH2LAK > >> [EMAIL PROTECTED] > > >-- >Jim Barbour >WD8CHL > > > > > > >Yahoo! Groups Links > > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Equipment For Sale
I've updated my swap page with more repeater gear for sale. As a sampling: Andrew Coax Connectors & jumpers: UHF, Type N, DIN, ground kits, 1/4", 1/2", 7/8", 1-1/4", 1-5/8", grips; more added soon G.E. MASTRII UHF Repeaters G.E. MASTRIII UHF Repeaters G.E. UHF Repeaters from Delta Mobile Radios RCA-500 Series UHF Repeaters RF Power/SWR Meters (Bird 43 & Slugs) G.E. MasterII UHF Power Amplifier Replacement Boards 900 MHz. F.M. Repeater Gear (Tait, G.E. MASTRII, Brand x) Quintron VHF Power Amplifier w/Power Supply Astron, Ericsson/RCA, & Samlex Power Supplies Sinclair VHF Antenna Arrays Decibel Products DB-408 UHF Antennas, Cable Feed Through Tubes TX/RX UHF Cavities (duplexers) The URL is http://www.people.vanderbilt.edu/~robin.midgett/index.htm Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] FS: VHF 4 Bay Sinclair Antenna Arrays
I have several (8-10) SRL210C2/C2HB*2 antennas for sale. These are arrays of four folded dipoles arranged in two pairs on a 20' tall heavy duty (sched. 40) aluminum mast. They are specified for coverage over 138-160 MHz. There are two feed line connections which exit the base of the mast; one for each pair. The coverage pattern for these antennas is slightly elliptical or nearly circular, depending on installation variables. I have scanned the spec sheets and posted them on my web site (see sig line). The antennas are located in middle Tennessee. If freight is necessary, I can get a quote via ABF Freight. Those quotes I've already gotten have been in the $170 range, plus $100 for a recommended crate. Other transport arrangements can be made. The price for the antennas is $150 each. Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] 6 meter repeater with 2 meter link?
This means no linking USING a six meter frequency...not that 6m machines can't be linked. At 07:52 PM 1/29/2006, you wrote: >I sure thought I remembered a few years ago that the FCC started to allow >linking on 6 meters, in order to get more activity there. > >-- Original Message -- >Received: Sun, 29 Jan 2006 06:45:59 PM CST >From: mch <[EMAIL PROTECTED]> >To: Repeater-Builder@yahoogroups.com >Subject: Re: [Repeater-Builder] 6 meter repeater with 2 meter link? > > > No - above 222.150 MHz, and not on 6M at all. > > > > Joe M. > > > > JOHN MACKEY wrote: > > > > > > Linking is not legal on 2 meters. All links must be on 6 meters or above >222 > > > MHz. > > > > > > > > > > > > > > Yahoo! Groups Links > > > > > > > > > > > > > > > > > > > > > > >Yahoo! Groups Links > > > > Thanks, Robin Midgett K4IDC VHF+ Glutton EM66se Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] DTMF generator for computer
I have used a nice little app called "DTMF Dial"..it's free, and works well. http://www.silverstones.com/DTMFDial.html At 03:53 PM 1/22/2006, you wrote: >Greetings all, > >I've been using TimeCat to set my repeater clock using my computer >speakers, but got to wondering today if there's another DTMF generator for >the computer I can use to send other commands. It seems like no matter >what I do, I end up fat-fingering a command using the microphone. Is >there something else out there like TimeCat I can download? > >-- de WM4B >Mike >Kathleen, GA > > > > > > > > > >-- >YAHOO! GROUPS LINKS > >* Visit your group > "<http://groups.yahoo.com/group/Repeater-Builder>Repeater-Builder" on the web. >* >* To unsubscribe from this group, send an email to: >* > <mailto:[EMAIL PROTECTED]>[EMAIL PROTECTED] > >* > * Your use of Yahoo! Groups is subject to the > <http://docs.yahoo.com/info/terms/>Yahoo! Terms of Service. > > >-- Thanks, Robin Midgett K4IDC VHF+ Glutton EM66se Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] PA Options for Hamtronics 6m Repeater?
How about a 100 watt PA out of a G.E. MASTRII..I have a few available. You won't need 25 watts to drive it, though, and you will need a hefty power supply. At 02:21 PM 1/15/2006, you wrote: >Anyone have any suggestions for higher power in a Hamtronics 6m >Repeater (REP200) > >I have the 25 Watt PA, and initial testing is showing the receive >sensitivity far out distances the ability to transmit. > >I am able to get into the repeater from 50 miles, but have to be >within 25 miles to hear it. > >I would like to have the potential for 100 to 150 Watts, if this >will bring it back in line. > >It is currently being tested at 90 feet with 1/4 wave homebrew >antenna. It has been tested at 50 feet with the same combo in >another location, and the results have been the same. Both >locations were temporary to get an idea of performance after >isolating a duplexer problem and correcting the resulting desense >problem. > >It is also possible that the final resting spot (197 feet elevation >with Comet antenna fed by 25 feet of 1/2" hardline) will improve the >balance between TX and RX. This will be 100 feet higher than the >current testing location, and far better feedline in terms of >quality and length. > >However, if the combination of higher antenna height and shorter, >less lossy feedline do not bring it back in line - What would be a >good choice in external PA to do the job? > >I know this is an open-ended question, and probably far short on >info to provide a definite answer. I am only looking for possible >options here. > >Thanks, > >David >KD4NUE > > > > > > > > >Yahoo! Groups Links > > > > Thanks, Robin Midgett K4IDC VHF+ Glutton EM66se Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Shipping an antenna
Yes, I have shipped such packages. I believe UPS's limit is 165" total, length and girth. Your package in a PVC tube shouldn't be a problem. BTW, there are different wall thicknesses of PVC..the stuff used for drain pipe has thinner walls, but the same O.D. so the same fittings work between types of pipe. So, if it makes any difference concerning getting the item in the tube, choose the thin wall drain pipe instead of schedule 40 or some such, which is rated for higher pressure and has thicker walls. At 06:20 PM 1/13/2006, you wrote: >I need to get a 10 foot long fiberglass antenna from Florida to >Connecticut. It can probably be encased in some PVC plastic tubing. >It'll weigh between 20 and 30 pounds when packaged. > >UPS and FedEx have some crazy size and weight limitations. At least >the UPS web site tells me the maximum length plus girth (essentially >circumference or square surface dimension) but FedEx is less user-friendly. > >Anyone have any experience shipping this kind of thing? It's NOT a >22 ft Super StationMaster but it IS one piece. I don't really want >to spend hundreds of dollars to ship it via a commercial trucking >company, especially considering what I'm paying for the antenna. > >Thanks. >Bob M. > >__ >Do You Yahoo!? >Tired of spam? Yahoo! Mail has the best spam protection around >http://mail.yahoo.com > > > > > >Yahoo! Groups Links > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Re: OT - funny interference story
Since when has Money-rola ever admitted anything At 09:18 PM 1/12/2006, you wrote: >As far as I know and can remember nobody got caught, Motorola never admitted >the problem and I don't remember the Police investigating. If Motorola >found the person they did not admit that either. > >Paul > > >-Original Message- >From: Repeater-Builder@yahoogroups.com >[mailto:[EMAIL PROTECTED] Behalf Of Richard >Sent: Thursday, January 12, 2006 7:37 PM >To: Repeater-Builder@yahoogroups.com >Subject: RE: [Repeater-Builder] Re: OT - funny interference story > > >I just wonder if the guy was dumb enough to think he wouldn't get caught! > >Richard > > >-Original Message- >From: Repeater-Builder@yahoogroups.com >[mailto:[EMAIL PROTECTED] Behalf Of Dave VanHorn >Sent: Thursday, January 12, 2006 10:36 AM >To: Repeater-Builder@yahoogroups.com >Subject: [Repeater-Builder] Re: OT - funny interference story > > > > > Do you think some Motorola employee got a ticket sometime? > >You know.. If that story is true, I'd call that one criminal. > > > > > > > > > >Yahoo! Groups Links > > > > > > > > > > > > > > > > > >Yahoo! Groups Links > > > > > > > > > > > > > > > >Yahoo! Groups Links > > > > Thanks, Robin Midgett K4IDC VHF+ Glutton EM66se Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Re: OT - funny interference story
Granted, but distant weak signals (in my experience) are the exception on repeaters..not the rule. CTCSS on the input would have kept the wireless mic(s) from getting through the repeater, until someone keyed up the repeater with a valid signal. At that point, it would have been a game of which transmitter captured the receiver. We have a similar problem in our locale with a wide area UHF system. The Air Force has a powerful radar system on a base ~80 miles away. From time to time we hear the radar beam sweep across the input, right on frequency. It doesn't key the repeater, but it can be heard once the receiver is opened. It's annoying at worst, because most of the voice traffic on the repeater is strong enough to (almost) fully capture the receiver...except for the rare, weak signals. Then its "sorry, try later when you're closer.." At 04:01 PM 1/12/2006, you wrote: > > Robin Midgett <[EMAIL PROTECTED]> wrote: > > Isn't that what CTCSS is for?? > > > >Nope... Regardless of the use of ctcss or dcs, the >signal on the input can knock out valid distant >weak signals. CTCSS/DCS is not meant to hide or >mask out problems. >s. > > > > At 11:43 AM 1/12/2006, you wrote: > > > > [EMAIL PROTECTED] wrote: > > > > Not very funny when you have to waste hours of time > > > > chasing these things down, knocking on doors & > > > > explaining to total strangers that they have a > > > > nuisance generator within their premises. > > > > Bob NO6B > > > > > >Try having your 222.6 repeater input frequency on a > > >nation-wide wireless mic frequency. Once again I'm > > >getting Karaoke music into the repeater during open > > >mic night. > > > > > >Sure is now making a frequency agile mic, which has > > >the above frequency as a choice. I have to call the > > >local bar and ask the music guy to pick another > > >frequency. What makes it so bad is that most people > > >can't sing. > > > > > >skipp > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >Yahoo! Groups Links > > > > > > > > > > > > > > > > Thanks, > > Robin Midgett K4IDC > > 615-322-5836 office - rolls to pager > > 615-835-7699 pager > > 615-301-1642 home > > [EMAIL PROTECTED] > > [EMAIL PROTECTED] > > http://www.people.vanderbilt.edu/~robin.midgett/index.htm > > > > > > > > > > > >Yahoo! Groups Links > > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Re: OT - funny interference story
Isn't that what CTCSS is for?? At 11:43 AM 1/12/2006, you wrote: > > [EMAIL PROTECTED] wrote: > > Not very funny when you have to waste hours of time > > chasing these things down, knocking on doors & > > explaining to total strangers that they have a > > nuisance generator within their premises. > > Bob NO6B > >Try having your 222.6 repeater input frequency on a >nation-wide wireless mic frequency. Once again I'm >getting Karaoke music into the repeater during open >mic night. > >Sure is now making a frequency agile mic, which has >the above frequency as a choice. I have to call the >local bar and ask the music guy to pick another >frequency. What makes it so bad is that most people >can't sing. > >skipp > > > > > > > > > >Yahoo! Groups Links > > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] FS: RCA 500 & 700 Series UHF Mobile Rigs
Greetings, I have several RCA 700 UHF mobile transceivers available in Nashville, TN. These were working when they were removed from service years ago. These radios would be good for making repeater link radios, IRLP or EchoLink nodes, or as the Tx & Rx strips for repeaters, or perhaps putting a UHF propagation beacon on the air. Also in the lot are several UHF RCA 500 series; same story. The 500s have the vacuum tube P.A. All this equipment and more is available as the result of the closing of a fifty year old two-way radio business in the area...there's much inventory to be liquidated. Sorry, no list yet, but it is evolving as we pick through all the stuff. I'm asking $50.00 each for the 700 series rigs, and $25.00 each for the 500 series, plus shipping. Please send inquires via direct email. Thank you, Robin Midgett K4IDC Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Duplexer tuning with Return Loss Bridge
Compared to using a RLB in conjunction with a service monitor (such as an IFR 1500) or a network analyzer, the Bird 43 is cumbersome and time wasting. It will get the job done, but with less accuracy and much more time invested. I'd consider it a minimal effort at tuning a duplexer, not a thorough method at all. And no, it isn't a RLB by the definition. At 10:35 AM 12/21/2005, you wrote: >The Bird Model 43 is a typical RLB. You can also use a network analyzer. > >Dick > >- Original Message - >From: "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> >To: >Sent: 21 December, 2005 08:20 >Subject: Re: [Repeater-Builder] Duplexer tuning with Return Loss Bridge > > >Who makes a Return Loss Bridge? Any idea of the approximate cost? >LJ > > >-Original Message- > >From: Eric Lemmon <[EMAIL PROTECTED]> > >Sent: Dec 21, 2005 7:42 AM > >To: Repeater-Builder@yahoogroups.com > >Subject: Re: [Repeater-Builder] Duplexer tuning with Return Loss Bridge > > > >Gary, > > > >A return loss bridge (RLB) is an extremely useful tool for tuning the > >pass function of a BpBr duplexer. That's because the bandpass response > >of each cavity in a BpBr duplexer is very subtle- nothing like the peak > >you will see in a bandpass-only cavity. Even when three BpBr cavities > >are in series, the bandpass response is rather wide. > > > >An RLB allows any good spectrum analyzer to emulate the reflection > >capability of a vector network analyzer to a sufficient degree that > >bandpass tuning can be much more precise. Instead of viewing the > >transmission bump, you can view the reflection notch- which is very > >sharp. With such a clear indication of the bandpass tuning, the cavity > >can be tuned within a few kHz of the exact pass frequency. > > > >It is essential that all interconnecting cables and connector cables be > >of very high quality, and the spectrum analyzer's reference oscillator > >be on frequency. It takes some practice to use an RLB correctly, but > >it can allow you to tune a duplexer with remarkable precision. > > > >73, Eric Lemmon WB6FLY > > > > > >Quoting [EMAIL PROTECTED]: > > > >> > >> Gentlemen, > >>Will be starting a new science project setting up Wacom 641 on 2 > >> meters. > >> Have a Rohde & Schwarz monitor receiver with S meter, DB pads, dummy > >> loads > >> etc. Plus an IFR 1500. But I see comments on a unit called a 'return > >> loss > >> bridge' for the IFR. How important is this return loss bridge and > >> what is it's > >> claim to fame? Do I really need one? Also have an old HP 8554B Spectrum > >> Analyzer. > >> Thanks, > >> Gary K2UQ > >> > >> > >> > > > > > > > > > > > > > > > > > >Yahoo! Groups Links > > > > > > > > > > > > > > > > > > >Yahoo! Groups Links > > > > > > > > > > > > > >Yahoo! Groups Links > > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Duplexer tuning with Return Loss Bridge
The two brands I'm familiar with are Mini Circuits & Eagle. Ditto on usefulness...also good for tuning receiver front ends and PA outputs...powered off, of course. At 10:20 AM 12/21/2005, you wrote: >Who makes a Return Loss Bridge? Any idea of the approximate cost? >LJ > > >-Original Message- > >From: Eric Lemmon <[EMAIL PROTECTED]> > >Sent: Dec 21, 2005 7:42 AM > >To: Repeater-Builder@yahoogroups.com > >Subject: Re: [Repeater-Builder] Duplexer tuning with Return Loss Bridge > > > >Gary, > > > >A return loss bridge (RLB) is an extremely useful tool for tuning the > >pass function of a BpBr duplexer. That's because the bandpass response > >of each cavity in a BpBr duplexer is very subtle- nothing like the peak > >you will see in a bandpass-only cavity. Even when three BpBr cavities > >are in series, the bandpass response is rather wide. > > > >An RLB allows any good spectrum analyzer to emulate the reflection > >capability of a vector network analyzer to a sufficient degree that > >bandpass tuning can be much more precise. Instead of viewing the > >transmission bump, you can view the reflection notch- which is very > >sharp. With such a clear indication of the bandpass tuning, the cavity > >can be tuned within a few kHz of the exact pass frequency. > > > >It is essential that all interconnecting cables and connector cables be > >of very high quality, and the spectrum analyzer's reference oscillator > >be on frequency. It takes some practice to use an RLB correctly, but > >it can allow you to tune a duplexer with remarkable precision. > > > >73, Eric Lemmon WB6FLY > > > > > >Quoting [EMAIL PROTECTED]: > > > >> > >> Gentlemen, > >>Will be starting a new science project setting up Wacom 641 > on 2 meters. > >> Have a Rohde & Schwarz monitor receiver with S meter, DB pads, > dummy loads > >> etc. Plus an IFR 1500. But I see comments on a unit called a 'return loss > >> bridge' for the IFR. How important is this return loss bridge and > >> what is it's > >> claim to fame? Do I really need one? Also have an old HP 8554B Spectrum > >> Analyzer. > >> Thanks, > >> Gary K2UQ > >> > >> > >> > > > > > > > > > > > > > > > > > >Yahoo! Groups Links > > > > > > > > > > > > > > > > > > >Yahoo! Groups Links > > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] RCA 500/700 Series Power Amp Module
On the subject of the RCA 500 & 700 series (since there seems to be a knowledge base among the group)...the later models of the 500 series used a RF amplifier module to drive the PA. It is a blue package, that, I'm told, replaced (partially) a former complicated and unreliable tripler section. Did the 700 series use that same module? I'm looking for one for a friend..no luck yet. I have several 500 series mobile rigs on hand, but all that I've inspected thus far lack the blue gain block that I seek. I haven't opened any of the pile of 700 series rigs yet. Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] RCA 700 Series Radios Available
I have available an pile of RCA 700 series rigs, long removed from service. They're probably UHF, but I don't know at this point. Is anyone interested in acquiring any of these for a nominal fee? (read cheap) Thanks, Robin Midgett K4IDC VHF+ Glutton EM66se Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Samlex SEC-1212 Switching Supplies
Samlex SEC-1212 13.8VDC switching power supplies, 10 amps continuous, 12 amps surge, new in the box $60 each plus shipping from 37212, 10 available. Info at http://www.people.vanderbilt.edu/~robin.midgett/Power%20Supplies/PowerSupplies.htm Thanks, Robin Midgett K4IDC VHF+ Glutton EM66se Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] FS: Astron Rack Mount Supplies
One Astron RM-35A (no meters) 35 amp supply, rack mounting, new in the box $175. One Astron RM-35M (with meters) 35 amp supply, rack mounting, new in the box $190. Shipping is additional from 37212. Thanks, Robin Midgett K4IDC VHF+ Glutton EM66se Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] FS: RCA Super Carfone 500 Series
I have available for sale several RCA 500 series Super Carfone UHF transceivers. These include the receiver and transmitter strips with the vacuum tube power amplifiers, & mobile mounts (if you want them). The amps are good for about 90 watts output in FM service. These units are used, old stock removed from commercial service many years ago and stored in a climate controlled environment. They are not tested, presumed working. They are good for making repeaters, beacon transmitters, repeater receivers, control receivers, power amplifiers, organ donors for other RCA gear, and as 30 lb. (approx.) anchors for small water born craft. Asking $25 each plus shipping from 37212. Contact me via email at K4IDC at comcast dot net. Thanks, Robin Midgett K4IDC VHF+ Glutton EM66se Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] FS: Zetron Telephone Patch
Greetings, I have to offer for sale a Zetron 35AR Microconnect phone patch. The unit is removed from service, and rack mountable. Details on the unit may be found at http://zetron.psicompany.com/zetron/35aspc.pdf. I'm asking $250 or best offer, shipped CONUS. Thank you, Robin Midgett K4IDC 2004-2005 President, SVHFS 2005 SVHFS Conference Charlotte, NC April 29-30 www.svhfs.org Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Spectrum Analyzer; Tuning & Peaking
If the tracking generator & spectrum analyzer (service monitor) equipment is available, that is the way to go. There is no substitute for having a visual representation for what is happening while the tuning is being done. Late last year I decided to tweak up the AA4VU UHF repeater using an IFR 1500 service monitor. I was dissatisfied with the performance of the repeater, even though I had tuned the duplexer and front end of the receiver prior to installation. I decided to try a different tactic, and decided to use a return loss bridge between the IFR & the repeater gear. With the RX frequency programmed into the IFR and watching the analyzer display, I tuned the receiver front end for best match (highest return loss or deepest notch on the screen). It made a terrific difference...we gained several dB of sensitivity. Then I turned to the TX & RX cans and again tuned for best match; first the RX path then the TX path, each time with the opposite set of cans terminated into 50 ohms. I also looked into the output of the transmitter and tweaked it for 50 ohms at the TX frequency (powered off) As a last step, I reconnected the repeater and looked into the system from the antenna port. I touched up the RX & TX paths just to ensure best match. By the time I was finished, we gained ~12-15 dB of sensitivity. On my way home that night, I was able to get into and hear the repeater from a distance of 10-12 miles further than previously. At 05:04 PM 3/22/2005, you wrote: I used to tune them that way also, and thought I did well, but after I got access to a Spectrum Analyzer with tracking generator, I find it much easier and more accurate. Maybe because the pattern is visual when you are tuning with the tracking generator and analyzer. I've taken duplexers I tuned the old way and put them on the service monitor and found I could get 8 or 10 db better with the analyzer. You use what you have, and I sure would use the analyzer/generator combination if I had it. Gary - K7NEY - Original Message - From: Michal Smialowski To: Repeater-Builder@yahoogroups.com Sent: Tuesday, March 22, 2005 10:55 AM Subject: [Repeater-Builder] Spectrum Analyzer I have always tuned duplexers just using a signal generator and a radio receiver. Peaking the passband and then going for the deepest notch for the reject. Although this seems to work, the results haven't been spectacular. I realize that there are many variables to consider. My question is, does using a spectrum analyzer and a sweep generator ( I am guessing here) make the process better, and if it does, how so ie what is the principle behind it? Thanks Mike Smialowski VE7SML Smithers BC Canada Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. Thank you, Robin Midgett K4IDC 2004-2005 President, SVHFS 2005 SVHFS Conference Charlotte, NC April 29-30 www.svhfs.org Yahoo! Groups Links To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
