[Repeater-Builder] Angle Linear Custom Preamp/Filter Unit
Has anyone used Angle Linear's custom preamp/filter repeater unit? I'm interested in learning whether real world performance matches what is said on paper by the vendor. Thanks.
[Repeater-Builder] Repeater Antenna Recommendations?
I'm giving serious consideration to replacing my 17-year old Radio Frequency Systems (Celwave) 1151, 8db Station Master type antenna with a brand new colinear or exposed dipole model. The antenna is being used for a 70 cm repeater. Any recommendations? Should I just buy a new 1151, or are there manufacturers/models more suited to repeater use (e.g., low noise, more durable, etc.). I chose an 1151 over a 455 (10db model) because I heard the the longer model flexes too much in the wind. Comments? Thanks. Tony
[Repeater-Builder] Amateur Radio Repeater Usage
We're continuing to experience a significant drop off in usage of ham repeaters (all bands) in the Northern NJ area. It is not uncommon to find a repeater that has been dormant for months. What's it like in your part of the country?
[Repeater-Builder] Vocom UHF Repeater Amp - Need Service Manual/Schematic Diagram
Anyone have a service manual and/or schematic diagram for a Vocom UHF 100 watt repeater amp (model # UVC100-XXRF) that they'd be willing to scan in and send via e-mail? Fax also works for me; e-mail off list for my fax number. Thanks. Tony - N2FDU
[Repeater-Builder] Moto MTR2000 Controller Interface Problem
A repeater group in our area has a VHF MTR2000 interfaced to a Zetron panel. For months now they've been experiencing audio level drops on weak signals into the repeater. There is no level change if the signal is DFQ. The local Moto authorized shop has thus far been unable to resolve the problem. Any ideas as to what the cause could be?
[Repeater-Builder] WTB - UHF Repeater Amplifier
WANTED: UHF repeater amplifier. Rack mount, continuous duty, 10-25 watts in 75-100 watts out, max current draw of 20 amps. Crescend, Vocom, TPL, TE Systems brands all okay. Please reply off forum or to n2fdu at arrl dot net Paypal payment available, or USPS Money order if requested. Thanks.
[Repeater-Builder] Trilectric A25100UR Repeater Amp
Anyone have a service manual or schematic for this unit that they wouldn't mind scanning in or faxing? Or, does anyone know what company purchased their assets? 25 in, 100 out, UHF, no fan. Thanks. Tony
[Repeater-Builder] Sad News - topozone.com Converts to Paid Service
topozone.com, previously a free source for geographic coordinate and topographic information, has now converted to a pay for service provider. Hopefully the same thing does not happen to google earth!
[Repeater-Builder] Vocom/Crescend Technologies UVC50-xxRF Power Amplifier
Anyone have a service manual for this unit? I need to know what type of final transistors are used, and what the driver transistor is. We want to buy some spares, just in case. There is no manual posted on repater-builder.com. Thanks.
[Repeater-Builder] Re: Service Manual Needed for TPL PA6-1BERX UHF Repeater Amp
Thanks. Found it there. --- In Repeater-Builder@yahoogroups.com, Mike Morris WA6ILQ [EMAIL PROTECTED] wrote: At 08:04 PM 04/06/08, you wrote: Anybody have a service manual for this item that they can scan in and e- mail? Have you looked on the repeater-builder.com web site (under Other Manufacturers) ?
[Repeater-Builder] Service Manual Needed for TPL PA6-1BERX UHF Repeater Amp
Anybody have a service manual for this item that they can scan in and e- mail?
[Repeater-Builder] False DTMF Muting On CAT-1000 Controller
The DTMF muting feature on one of our CAT-1000 controllers occasionally falses and sends cover tone over a user's voice. This happens to one user more so than anyone else. Is there an adjustment? Why does this happen on only one of 3 idential controllers? Thanks.
[Repeater-Builder] Re: Kenwood Repeater question
The best source for GM300s is ebay. They pop up weekly there. Recent auction prices are in the $125 range. Make sure you get the units with the 16 pin connector in the rear. I have over one dozen in service, either as repeater receivers, repeater transmitters, or remote bases. It's a great radio for those purposes; built like a tank. --- In Repeater-Builder@yahoogroups.com, Peter Dakota Summerhawk [EMAIL PROTECTED] wrote: Ok the reason I asked is that we are thinking of putting up a repeater for special events. Would a couple of GM or GR300 work well for this? I know you cold not use them full duty 100% but they would work for temp special event repeaters? I have yet to find a couple of 2CH models that cover the ham bands. Anyone know of a source of the units? Thanks Peter Dakota Summerhawk -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Mike Mullarkey Sent: Saturday, March 22, 2008 1:46 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Kenwood Repeater question Hi Peter, The TK-760 radios are great radios; however, I would post them on EBay and get a few Motorola SM-50 radios. All the connections are on the back on the Motorola and on the Kenwood, you will need to modify the radios to get TOR (PL) out of it and know where exactly to pick it off. If you get the Motorola radios try to get the high power radios and they will play nice at 20wt. Not in Continuous duty mode. Now if you drill out the 4 screw holes on the bottom and mill the bottom of the radio so then you can add a nice heat sink to it. Then they will operate in continuous mode but no more than 20wt. The first version was to mount a small fan on the bottom but ended up using the heat sink method and found it much more reliable. I have had more than 30+ full duplex links made out of these radios and have never had a unit fail. Take your time and plan your project and it will pay off if you do it the right way. Mike Mullarkey (K7PFJ) _ From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Peter Dakota Summerhawk Sent: Saturday, March 22, 2008 12:43 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Kenwood Repeater question I have a few of the TK-760's that I have been playing with the idea of thinking of using as a repeater, can this be done? And if so what would it take? Thanks Peter Dakota Summerhawk No virus found in this outgoing message. Checked by AVG. Version: 7.5.519 / Virus Database: 269.21.8/1338 - Release Date: 3/21/2008 5:52 PM No virus found in this incoming message. Checked by AVG. Version: 7.5.519 / Virus Database: 269.21.8/1339 - Release Date: 3/22/2008 4:43 PM No virus found in this outgoing message. Checked by AVG. Version: 7.5.519 / Virus Database: 269.21.8/1339 - Release Date: 3/22/2008 4:43 PM
[Repeater-Builder] WTB - GE Mastr II Cabinets
Need used GE Mastr II cabinets with front rear locking doors. Contact off list, or at: n2fdu at arrl dot net. Thanks.
[Repeater-Builder] WTB - UHF GM300's, GR300's, GR500's
WTB - UHF Motorola GM300's. 16 channel only, 438-470 MHz, any power level. Will also consider GR300 and/or GR500 UHF repeater. Send e-mail off list, please. Thanks.
[Repeater-Builder] Motorola GR300 Housing - RF Cables used
Fellow Repeater Builders: Does anyone know the length of the RF cables used in the GR300 repeater housing? I'm expecting to take delivery of a used unit shortly, but want to order a new set of cables in advance of delivery. I need the following cable lengths. Thanks. 1) Tx radio to internal duplexer 2) Rx radio to internal duplexer I believe the radio cable ends will need a mini UHF male, will the duplexer cable ends need a N-males, UHF males, or BNC males? I also want to order a cable from duplexer to antenna bulkhead. Thanks. Tony
[Repeater-Builder] ICOM F221S Mobiles and Repeater
Seeking feedback on the ICOM F221S mobile or CY F221S repeater UHF versions as to suitability for use in the 70cm ham band. Can the radios be programmed with Windows software, or are they like many Motorola products - i.e., you need a slow computer running DOS. Thanks. Tony
[Repeater-Builder] Re: Amateur repeater ID's
The most recent case posted on the FCC's Amateur Radio enforcement actions web site is this one: http://www.fcc.gov/eb/AmateurActions/files/BEDNA07_05_25_1078.pdf --- In Repeater-Builder@yahoogroups.com, George Henry [EMAIL PROTECTED] wrote: Can anyone point me to the specific enforcement case or warning letter where the FCC first said that regular, periodic repeater ID's irrespective of repeater usage were broadcasting and had to stop? The FCC's online archives don't seem to go back far enough (seems to me it was in the 80's), and all the references that DID turn up dealt with specific interference cases, not the broadcasting issue. A news item in a QST or CQ column would be sufficient... Thanks. George, KA3HSW / WQGJ413
[Repeater-Builder] 2000 foot tower falls in Little Rock - Any ham repeaters there?
http://www.arkansasbusiness.com/article.aspx?aID=102174.87444.114316
[Repeater-Builder] RF Radiation Hazard Warning Signs?
At what power output level would either a VHF or UHF amateur radio repeater need to be operating before its owner should consider mounting a RF Warning sign on the equipment room door (assuming there's no other tx equipment in the room)? 240 watts on the FM broadcast band got this licensee a Notice of Apparent Liability from the FCC. What if my ham repeater is running 1/4 KW? http://www.fcc.gov/eb/FieldNotices/2003/DOC-279189A1.html
[Repeater-Builder] Re: Getting On A Commercial Tower Site
Your best bet would be a tower owned by a not-for-profit entity, such as an educational/religious broadcaster, or a governmental agency. Hospitals are also pretty open minded; most of their roofs already have 2-way radio equipment, so they know what to expect. Unfortunately, the growing trend with respect to commercial multi- user towers is that they're owned by large corporations with stockholders. Translation: money talks, hams walk! Having a large liability insurance policy in force will also help. And, if you're asked to pay for electricity, don't let that be a deal breaker. I wholeheartedly agree with one of the previous replies; it's who you know, not how technically competent your group is. Good luck! --- In Repeater-Builder@yahoogroups.com, Alexander N Tubonjic [EMAIL PROTECTED] wrote: A group of us local hams have just started an Amateur Radio Club and are looking to place a couple repeaters on the air. We already have one VHF and one UHF repeater sitting in a garage waiting to be put on the air. We've been looking at local commercial tower sites as possible locations for the machines but before we contact the owners of the towers I was wanting to get some feedback from those of you that currently have or have had equipment located on commercial towers. We're looking at towers owned by power companies, county utilities, FM Broadcast stations, etc. I was just wondering from everyone's experience what's the best way to approach the tower owner about putting gear on his or her tower? What kinds of obstacles have yall had to hop through to get your equipment up? Any dos and don'ts you could suggest? Any words of wisdom from anybody? Any guidance would be greatly appreciated! Thanks es 73. Alex
[Repeater-Builder] Re: antennas for gmrs repeater
My first recommendation would be a RF Systems PD1151, but since you don't want to spend the money for a Station Master, how about a Hustler Newtronics G6-450-3? You should be able to pick one of these up for under $200. Reportedly, they stand up to the weather pretty well. The first choice PD1151 would run you about $650. --- In Repeater-Builder@yahoogroups.com, Jed Barton [EMAIL PROTECTED] wrote: Hey guys, Any opinions on an antenna for a gmrs repeater? It won't be going on a 300 foot tower, but it will be on the top of a hospital. I would rather not get a station master, but something that could withstand a little weather. Any ideas on the biggest bang for the buck? Thanks, Jed
[Repeater-Builder] Re: MSF 5000 CLB
My understanding of the current rules is that would be classified as broadcasting also. Announcements of any sort, including IDs, must be associated with repeater receiver activity. If the receiver has been inactive, the transmitter should be as well. --- In Repeater-Builder@yahoogroups.com, Bob M. [EMAIL PROTECTED] wrote: If it IDs at the same time, is that OK? What about repeaters that send a beacon out every 30 minutes? These are all being generated by the controller at the repeater site, and if these transmissions have been authorized by the trustee and/or control ops, it seems to be an allowed transmission, annoying (to some) as it may be. Bob M. == --- Tony L. [EMAIL PROTECTED] wrote: If you've programmed the repeater to make time announcements even when there in no activity on the receiver, you are in violation of FCC rules that prohibit broadcasting. --- In Repeater-Builder@yahoogroups.com, kd7ikz kd7ikz@ wrote: Hi All I am runnig a MSF 5000 CLB with a Arcom controll. I am also runnig echolink on the repeater. I have the repeater say the time every hour and half hour. I was going to work today and the repeater said to time ok. Then I was going to get on echolink and the repeater did not key up so I called home and the wife said that the TX light was on and the RX light was blinking on and off. She tryed to reset but the RX light would not come back on. So I just let it be for about two hours and tryed it again and the RX light came up. can anyone gave me any ides on what it mite be? Also I have to keep a fan on the RF tray and station control because it gets to hot and when it TX it sounds like it has a open squelch.I am new to the repeater world. The repeater is working fine other then that. Thanks Bob kd7ikz echolink 216767 __ __ Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs
[Repeater-Builder] VHF Repeater Antenna Choice
Any comments on the difference between expected antenna patterns and coverage on a DB222 vs. Celwave/RFS PD220? I'm using a PD220 and find the local coverage to be somewhat spotty, but coverage 20 miles away to be excellent. Is this typical of the PD220? Would a DB222 fill local areas any better? --- In Repeater-Builder@yahoogroups.com, skipp025 [EMAIL PROTECTED] wrote: Dipole phasing is not easy even for the Decibel 420 type antennas. It is common for very sharp nearfield nulls and cancel areas expecially near and underneath a mountain top mounted antenna. I label the effect something similar to what I call unwanted nearfield/local re-entrant energy. Less of a similar antenna in the case of the DB-408 would have less gain but less close-in and below problematic areas. It would also have a different vertical radiation angle. Using at least one of all the Decibel DB-408 and DB-420 type antennas from a mountain top repeater site... I can tell you first hand there is quite a bit of difference in portable and distant in-building coverage using the higher gain Decibel DB-420 antenna. There is also something to be said for what I call the antenna capture area, which is the shear amount of dipole surface area (metal) spaced up and down many wave-lengths on the tower. In most cases there should never be too much antenna but there can be the wrong antenna for an application and location. One sidebar I noticed in your post... you weren't using a Decibel DB-420 Brand Antenna. The Signals Brand Antenna first used in your system is a different animal indeed. cheers, s. Chuck Kelsey kelsey@ wrote: We had a DB-420 style antenna (actually it was made by Signals, but it was folded-dipole design) on our UHF repeater at work. We were constantly having difficulty with portables being able to hit and hold the repeater and they were no more than 1/2 mile out. The local M/A-Com shop kept saying too much antenna. We changed it out to a DB-408 and the problem was corrected. We are in rolling hills and the antenna was about 70' above ground level at a water tank. I plotted the antenna pattern against topographic map data and discovered that the portables were in some deep nulls with the higher-gain antenna. In another instance, a UHF ham repeater on a pretty decent site was using a DB-420 style antenna (I believe it was actually an Antenna Specialists version). It worked great out at the horizon, but closer in mobiles would become noisy and portables were tough. It got changed to a Sinclair 4-element folded dipole, and the improvement was substantial. Slight loss out at the extremes of the coverage area. I'm convinced that bigger isn't always better. You need to use the right antenna for the intended coverage. If all of your users are out at the extremes of where your repeater is located, the highest gain antenna might make more sense. I'd dare say that this usually isn't the case. Chuck WB2EDV - Original Message - From: Keith, KB7M To: Repeater-Builder@yahoogroups.com Sent: Monday, November 26, 2007 11:31 AM Subject: Re: [Repeater-Builder] Re: Repeater Antenna Choice The area served by many of our radio sites (we are in Central Utah), sit at approximately a 12 degree downtilt from the sites. Most of these sites are at 3000-4000' AGL. In some cases, we have opted for lower gain antennas to cover close in areas better. We designate repeaters as local or wide area coverage to account for this. Wide area repeaters get high gain antennas to aim for the horizon (about 50-100 miles out), and local area repeaters get lower gain antennas for about 5-20 miles out. In some cases we opt for directional antennas such as corner reflectors or dipole arrays with all elements on one side of the mast when we want to cover the populated areas better at the expense of the back country. -- Keith McQueen kb7m@ 801-224-9460
[Repeater-Builder] Re: Ailing Wacom 220Mhz Duplexer
Wacom products are being supported by Telewave of California. www.telewave.com --- In Repeater-Builder@yahoogroups.com, Keith, KB7M [EMAIL PROTECTED] wrote: I have a Wacom model WP-652 duplexer with what I hope is a minor easy to fix problem. Three out of the four cavities are operating correctly with a classic BpBr curve on the tracking generator. The fourth (it is the high frequency input cavity normally connected to the transmitter on this band), exhibits a curve that as near as I can describe it is missing the notch. If I loosen the connectors and wiggle them, I can sometimes get the correct curve to show. I have loosened and inspected the tuning stub on the side and see no visible damage. After reassembly, no change was noted. The overall performace of the duplexer is not bad, and would probably work with reduced isolation. I'm not sure where to go from here. I don't know how to inspect the internal matching loops for damage. I also don't know how to disassemble the cavity for possible repair. Has anyone repaired a Wacom duplexer? Is there anyone supporting them? Any ideas? -- Keith McQueen [EMAIL PROTECTED] 801-224-9460
[Repeater-Builder] GR300 Repeater Housing - Fan Replacement
Has anyone here ever replaced a fan in a GR300 repeater housing? If so, how tough of a job is it, and is the fan stock? Thanks.
[Repeater-Builder] WTB: GM300 Mobile Mounting Brackets
GM300 mobile mounting brackets needed. Reply off-forum, please. Thanks.
[Repeater-Builder] 2 Meter Duplexer Recommendations?
My Celwave PD 497-1-1 VHF duplexer just can't seem to provide adequate tx/rx isolation (Micor 100 watt repeater with 0.6 MHz tx/rx separation). Everything else seems to check out okay; jumper cables, connectors, receiver, and hard line. I've heard the PD 497-1-1 isn't the latest in duplexer design and was wondering what other VHF repeater owners might recommend with regard to high performing, closed spaced duplexers for moderate power applications. Thanks.
[Repeater-Builder] Doubling Power Output On UHF Repeater
I've asked this question before, but will ask it again just to see if there are any new twists that I'm unaware of: Our UHF repeater is currently equipped with a 50 watt PA. We have an opportunity to install a 100 watt PA at moderate cost. Our site is excellent and we are already using good radios, quality hardline, excellent filtering, and a commercial grade antenna. Will the difference between 50 100 watts be worth a moderate expenditure? What would you do?
[Repeater-Builder] New FCC Ruling May Benefit Many Ham Repeaters Located At Cell Sites
If your repeater is located at a cell site, check this out: October 16, 2007 - A Federal Communications Commission representative said today that to meet national concerns for adequate public safety communications, it had adopted an order reinforcing and clarifying a prior order requiring cell phone and landline carriers within one year to install power backup supplies at all of their sites and to have portable power supplies available for sites that are incapable of having power backup. The ruling will clearly benefit the economic growth of generator, battery and fuel cell suppliers as well as installation contractors throughout the country. Public safety will be the prime beneficiary, but carriers and other telecom companies will be burdened with considerable expenses that will be incurred in order to meet the FCC's deadline -- impacting Adelstein's wished for success. The Commission's safety edict will result in increased administrative costs to tower owners to manage the new power supply installations that will ensure eight hours of power backup, but they will benefit from increased lease rates as their tenants expand their compound footprint.
[Repeater-Builder] Wanted to Buy - UHF Moto GM300's
438-470 MHz/16 channel only. Any power level. Working condition only. Accessories not needed. Send replies off list only, please. Include exact model # and asking price. Thanks.
[Repeater-Builder] Re: Quantar and PL
I own a VX6 and regularly use a local Quantar repeater without any problems. To the best of my knowledge, the Quantar is stock. --- In Repeater-Builder@yahoogroups.com, Al Wolfe [EMAIL PROTECTED] wrote: We recently replaced an aging UHF machine with a Quantar for a local ham repeater. Now it seems that some users are not able to key up the system. Turns out their radios (all VX6's) have fairly low tone deviation. Tests on the Quantar show that it needs at least 300 htz to key it. This seems reasonable to me but the users all say Well, my radio used to work with the old repeater. So fix the new one. Is there a way to increase the sensitivity to PL tones in a UHF Quantar? Is this desirable? Al, K9SI
[Repeater-Builder] Re: UHF band opening
Another reason NYC repeater owners moved to the odd/even flipped plan was to allow for use of existing tx combiners at premium commercial sites. If the ham repeater's tx frequency was in the 447- 450 range, an owner could use a site owner's combiner tuned for the 450-455 commercial band, thus assuring an excellent tx location on a tall tower. This was most evident on Long Island. --- In Repeater-Builder@yahoogroups.com, Jeff DePolo [EMAIL PROTECTED] wrote: From what I've been told, when 70cm first started to take off for FM repeaters, repeater owners in the New York City metro found that they had fewer issues with desense and overload if they flipped to a negative offset (i.e. get the ham repeater Rx further away from the 450-455 commercial repeater Tx's). By the time the coordination councils got on the ball, there was a mish-mash of repeaters operating with either positive or negative shift. As a fix (using that term loosely), they decided that all of the odd pairs (44x.x25 and 44x.x75) would be negative shift and all of the even (44x.x00 and 44x.x50) pairs would be positive shift. This became the policy for the adjacent coordinators, and, like a bad cold, it spread up and down the Atlantic coast from New England to Virginia as more 440 repeaters came online. It's an ugly mess, and one that Ive made noise about fixing by having everyone go to positive offset to align with our respective neighbors to the west and south. Most of the coordination councils have been in agreement, but others remain opposed, so nothing has changed yet... --- Jeff -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Bob Dengler Sent: Wednesday, September 19, 2007 1:19 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] UHF band opening Does anyone know why the New England bandplan has inverted 70 cm pairs every 25 kHz (unlike the rest of the country, which is either all + or all - 5 MHz)? 25 kHz isn't close enough for any adjacent channel issues to be a concern. Bob NO6B
[Repeater-Builder] Null Fill UHF Base Station Antenna - Bogner Penetrator?
Bogner used to manufacture a null fill UHF base station antenna; I think it was called the Penetrator. If I remember correctly, Celwave manufactured a similar product. Anyone out there ever use one of these? If so, were they worth the money? I recall they were very heavy and very expensive; I always wondered if they really did improve repeater coverage. I see a few 800 900 MHz models in service; most likely being used by paging companies. But I don't think that I've seen a UHF one in service lately. In fact, the only ones I ever saw were in service at sites using transmitter receiver combiners. I think that they were very broadbanded. I'd be interested in hearing from anyone who ever used one for a ham or GMRS repeater. Are they still manufactured? Thanks. Tony
[Repeater-Builder] Re: Lon and Lat Locator
Mapquest has such a feature. --- In Repeater-Builder@yahoogroups.com, Don KA9QJG [EMAIL PROTECTED] wrote: Hello Hope Everyone is doing well,. Can anyone tell Me if thee is a Program on the WWW Like Goggle Earth that will let you just put in a Known Lat and Lon and display the Location, Goggle and others I have found will show You that info on the Pointer Location but You already know the area You are looking in. The reason is I have a Ham Friend in Rural Arkansas who has a PO Box for a Address , He used a Program to sent Me a Sat photo of His QTH , But I know for a fact I have seen better on Goggle Earth . Thanks Don KA9QJG
[Repeater-Builder] WTB - UHF Motorola GM300s
438-470 MHz only. 16 channel with expanded logic board only. Any power output level. Reply off post, please, with exact model# and condition of radio(s).
[Repeater-Builder] Mastr III - Anybody using one?
Does anyone out there have a VHF Mastr III in service as a ham repeater? Feedback - good or bad? Sources for purchase of used/reconditioned?
[Repeater-Builder] Re: Cleaning House ... Micor and MSY ............ Complete or Parts
I just heard back from him via private e-mail. He's located just outside of Chicago. --- In Repeater-Builder@yahoogroups.com, Scott Zimmerman [EMAIL PROTECTED] wrote: Where are you located?? Scott Scott Zimmerman Amateur Radio Call N3XCC 612 Barnett Rd Boswell, PA 15531 - Original Message - From: bbfmrf [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Wednesday, May 30, 2007 1:06 PM Subject: [Repeater-Builder] Cleaning House ... Micor and MSY Complete or Parts I'm cleaning house and I have a number of both Micor and MSY repeaters and parts available. Most repeaters were either 460 or 470 MHz and were working when taken out of service. I have many repeaters that are complete, but I'm also not against parting out a few if necessary. I also have a number of cards, power supplies and PA's Buyer will pay actual shipping charges Questions will be answered as efficiently as possible, but as most items are stored off site, answers may be delayed a day or two. Please send your questions to [EMAIL PROTECTED] Yahoo! Groups Links -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.472 / Virus Database: 269.8.3/824 - Release Date: 5/29/2007 1:01 PM
[Repeater-Builder] Re: Linking 2 repeaters
How about a VHF receiver at each site that listens to the other repeater? Obvioulsy, you'll need excellent antenna separation to do this, plus the ability to eliminate CTCSS from being transmitted on hang time and during ID's. Otherwise, you'll wind up getting caught in a loop. Also, the two sites must be able to hear each other. --- In Repeater-Builder@yahoogroups.com, prostockcocker [EMAIL PROTECTED] wrote: I have two locations that have Moto - Micor 2meter repeaters, am using a FF-800 for a controller at both sites. I have explored the idea of using a UHF repeater and link radio to hotlink the two sites, but at the time funding is a bit low. What other alternatives do I have to link the two repeaters? Thanks for the input.
[Repeater-Builder] Motorola GM300 Problem
After reprogramming a GM300, the unit doesn't receive. The new receive frequency is NOT out of band. Transmit works just fine. Suggestions for possible quick fixes?
[Repeater-Builder] WTB- Repeater Controller
WTB; repeater controller. Autopatch not needed. Contact me off list with details. Regular e-mail is: railtrailbiker at yahoo dot com. Thanks.
[Repeater-Builder] MSR2000 PL Reeds
I need a set of 151.4 (5Z) PL reeds for a MSR2000 VHF repeater station. Please contact me off list if you have a set, or know a good source. Thanks.
[Repeater-Builder] For Sale - 175' of 7/8 Andrew LDF-50A (used)
Contact me off-line if interested. $250 firm. Cash only. Pick up only in Northern, NJ.
[Repeater-Builder] CAT-1000 Controller - Audio Response Change
Does anyone know how would I go about changing the audio response on a CAT-1000 controller? I'm seeking to make the audio flat. Thanks.
[Repeater-Builder] Re: Linking question
If you are able to install a UHF moble radio at your VHF site, why not link the other way? You might be able to get away with a small yagi at the base of your tower, or on the equipment shelter itself. --- In Repeater-Builder@yahoogroups.com, William Delbert Ellis [EMAIL PROTECTED] wrote: Howdy, New to this group today. I am the control operator for two of our ham club repeaters. A 2m Motorola and 70cm Motorola. We had them next to each other hard wired linked with antennas on a very tall commercial tower in Austin. The UHF antenna was turned to dust by a lightning strike. The machine survived however the cost of a tower climb exceeds our cub funds so I have moved and coordinated the UHF machine 20 miles west to my home QTH tower. This works out nice as I am on a big hill and cover the local state park very well. I would like to link the two together by installing a 2m mobile rig on the UHF controller linking radio I/O and link it to the VHF machine. This would take the audio out of the UHF machine and transmit it on the mobile rig to the input of the VHF machine 20 miles east via a small 2m yagi. The RX audio on the 2m mobile rig would then be transmitted out on the UHF machine. This is all easy to do with the controller I have. The question is this legal now on the ham bands? I think up until early this year you could only link with UHF until the FCC changed the law enabling the Kenwood sky command to be legal on 2m thus allowing what I am planning. What are the group members thoughts on this? Thanks, Bill N5ZTW Central Texas.
[Repeater-Builder] Re: Price On A Station Master VHF Repeater Antenna
List price is $968. Tessco is discounting them for as low as $687.28 --- In Repeater-Builder@yahoogroups.com, Richard A. Blank [EMAIL PROTECTED] wrote: Does anyone know the price new for a Station Master VHF repeater antenna? Or, does anyone know where I can get the price for a new Station Master VHF repeater antenna? Thanks, Rick, WB3BSA http://www.xmirep.com/wb3bsa
[Repeater-Builder] Re: Price On A Station Master VHF Repeater Antenna
The equivalant Telewave lists for the same price, $968. I can't recall what the Telewave ham club discount is though. Anything greater than 30% will bring you in lower than the Stationmaster. FYI though, there have been many posts here over the years suggesting that fiberglass coated antennas aren't as suited for repeater operation as are exposed dipole arrays. You might want to read some of those comments before locking yourself in. --- In Repeater-Builder@yahoogroups.com, Steve Kometz [EMAIL PROTECTED] wrote: You might check with Telewave. They still discount for Ham clubs if that applies.
[Repeater-Builder] DCI Filters - Do they work?
How many of you are using a DCI filter of some sort in front of your repeater receiver or duplexer and what are your before/after observations?
[Repeater-Builder] WTB - Andrew/Decibel Products DB224 Antenna
WTB - New DB224 antenna. 138-150 MHz split. If you've got one in a box that you're never going to use, turn it into cash now. Contact me off list, please. Thanks.
[Repeater-Builder] Moto GM300's Used With External Controller - COR Problem
We're attempting to set up a repeater using 16 channel GM300's and an external controller (a CAT 1000). We've done this before twice, but seem to be stumped this time because we can't get either the receiver radio or link radio to produce the right voltage swing the controller is looking for in connection with COR. We've tried 3 radios but none will produce the necessary voltage swing. What have we missed? Programming or wiring issue?
[Repeater-Builder] Re: Diversity Antenna System ?
One of our repeaters is at a water tank. Our antenna is mounted at the top, but on the tank's northern side. There's an opportunity to mount another antenna at the oppostite side of the 50' wide tank (same height). I was wondering if we might improve omni coverage by having radiators operating from both sides. --- In Repeater-Builder@yahoogroups.com, Milt [EMAIL PROTECTED] wrote: Tony, Not sure where you are going with this. I have seen and heard of antenna systems that used power dividers to connect two antennas to a single point with equal or unequal power division. Usually used in buildings where the RF resource is on the top of the building and coverage is needed in basements and sub-basements. Often one of the legs is radiating coax terminated in a unity gain antenna. This could be connected to a duplexer output. This has been done for quite a while and I'm sure that there are many on the list who have dealt with similar systems. Voting systems on the other hand are systems where multiple receivers are connected to a voting selector which determines which of the multiple receivers has the best signal to noise ratio and selects that receiver. The output of the selector then connects to whatever the user wishes. Examples could be many receivers connected to a console with a single or multiple location talk back transmitter(s) under the control of a dispatcher on a simplex frequency; or feeding the output and corresponding COR to a transmitter on a second frequency in a repeater configuration. Again this has been done for many years. For more information check out some of the standard texts that are oriented to land mobile radio. Milt N3LTQ - Original Message - From: Tony L. [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Thursday, March 01, 2007 8:56 PM Subject: [Repeater-Builder] Diversity Antenna System ? Has anyone ever experimented with a diversity antenna configuration on a repeater? That is, using 2 antennas, mounted at different building/tower locations, but connected to a single duplexer? I suppose a controller/router/voter of some sort would be necessary to insure that the antenna receiving the strongest signal would also be chosen for tx purposes? Thoughts? Yahoo! Groups Links
[Repeater-Builder] Diversity Antenna System ?
Has anyone ever experimented with a diversity antenna configuration on a repeater? That is, using 2 antennas, mounted at different building/tower locations, but connected to a single duplexer? I suppose a controller/router/voter of some sort would be necessary to insure that the antenna receiving the strongest signal would also be chosen for tx purposes? Thoughts?
[Repeater-Builder] WTB - VHF Repeater Duplexer
Wanted: VHF repeater capable of operation near 146 MHz. Duplexer needed also, but willing to purchase from alternate source. Prefer MSF5000 or other non-crystal repeater. Must be set for plug play, including power supply cabinet. Send full details, photos, and asking price. Located near NYC. Can pick up anywhere from D.C. to Maine.
[Repeater-Builder] Affordable P25 Repeaters?
What manufacturers currently have P25 capable repeaters on the market?
[Repeater-Builder] OT- Activity Level On Ham Repeaters Way Down In My Area
The number of active ham repeaters in my area is way, way down in comparison to levels of 10 years ago. It isn't uncommon to monitor a repeater frequency and hear no traffic for weeks. Some clubs individuals have just walked away from coordinated pairs. However, there are a few repeaters that have remained active, although certainly not to the extent they were in the past. Interestingly, even though traffic is way down, there's still a waiting list in my area for coordinated pairs on all bands. Questions: 1) Has there been a decline in traffic and the number of active repeaters in your area? 2) If so, what do you feel the primary cause is? 3) What can be done to generate renewed interest?
[Repeater-Builder] Problems With Diamond NR73BNMO
My Diamond NR73BNMO stopped working on 70cm. Tx rx are both fine on 2 meters, but the antenna will not tx or rx on 70 cm. I swapped the antenna with a spare, and everything works fine with the replacement antenna. Any ideas?
[Repeater-Builder] Re: 2M Power Amp
Check out Crescend Technologies Vocom product line. They're reasonably priced and seem to be built pretty well. Our club installed a 50 watt UHF Vocom repeater amp several months ago. Thus far, we're pleased. Primus Distribution in Illinois offers a 30-40% discount off Vocom's list price. http://www.crescendtech.com/ --- In Repeater-Builder@yahoogroups.com, Scott [EMAIL PROTECTED] wrote: What do the folks on the group recommend for a 2M power amp for a repeater with an exciter capable of 10-25W output? New, used, modded, otherwise. I am probably going to be replacing an older Henry that was modded and did not have a tuned input...(spur city). Scott NA4IT
[Repeater-Builder] Re: 2M Power Amp
Vocom used to be independently owned, but their assets were purchased at some point by Crescend Technologies (with all manufacturing being incorporated into Crescend's plant). I guess this afforded Crescend the ability to market a high end product (the Crescent brand name) and a lower end product (Vocom). For ham use I think the Vocoms are just fine. We had a TE Systems previously. Worked well for the first 3-5 years, died, was fixed by the factory, then worked for 10 years before crapping out again. TE Systems estimated $250 worth of repairs would be necessary. Rather than spend $250 on old technology, we decided to spend our money on a newer design, and a brand new item. Loads of horror stories can be found on-line about product sent back to TE Systems for repair, never to be seen again. Another reason that we decided to go with something new. --- In Repeater-Builder@yahoogroups.com, Maire-Radios maire- [EMAIL PROTECTED] wrote: Well I think there are 8 or 9 Vocom/Cresend amps I have in service all UHF. 1 Henry UHF, 1 TE systems UHF, 6 or so TPL 5 UHF and one VHF 2 meter high end grade amp. I have had one Vocom go back for repair and testing but no trouble found so no cost. had 2 or so TPL go in for repair and cost about $250 each time. That is the best I can come up with very little service on them. Thanks John - Original Message - From: Nate Duehr To: Repeater-Builder@yahoogroups.com Sent: Wednesday, February 14, 2007 1:46 PM Subject: Re: [Repeater-Builder] Re: 2M Power Amp On 2/14/07, Maire-Radios [EMAIL PROTECTED] wrote: Well I have been using them since about 1989 or so. They were call Vocom at that time and the amps still work. John How many have you had die? That was the question. Using them since 1989 and replacing one a year, wouldn't be worth it. :-) Now that I think about it, I think the PS group had Vocom, and replaced the dead one with Cresend -- so it was probably not a switch of vendor... just a factory replacement, since they're the same company -- going by the other postings on the thread. Nate WY0X
[Repeater-Builder] Re: Controllers
Doesn't Pacific Research market a line of controllers with built in CTCSS? --- In Repeater-Builder@yahoogroups.com, George Poteat [EMAIL PROTECTED] wrote: Is there a reccomendation for GOOD controller out there that has all the bells and whistles INCLUDING BUILT IN sub-audible (ctcss) decoder. We are thinking of moving an old RC-96 to a secondary repeater and replacing it with a gud new 'un. $1000 +/- range? Club money, not mine ';o) CAT 1000 need external decoder, if so, what is good? George - K4GLP
[Repeater-Builder] FS- UHF Repeater Amp - Needs Work.
FS TE Systems Model 4412R 100w continuous duty repeater amp. 420-450 MHz. 19 rack mount. 15-30 watts in = 100 watts out. Draws 19 amps. 12' H, 19 W, 4' D. No fan; convection cooled with large heat sink. Not in working condition. Make offer via private e-mail. Located near NYC.
[Repeater-Builder] Propagation Software
Is there someone with a good VHF/UHF propagation software progam on their computer who wouldn't mind running a plot for me? I can't seem to get Radio Mobile Deluxe to run properly on my PC. I have coordinates and all other particulars for a proposed repeater site; just need someone to run a plot and send me a JPEG file back. Please send private e-mail if you could help. Location is northern NJ. Thanks.
[Repeater-Builder] WTB - Moto GM300's
Wanted - VHF UHF GM300's VHF- any split. UHF- 438-470 split. Any power level, any condition (working preferred). 16 pin connector mandatory. Mics not needed, but mounting brackets power cords would be nice. Send private e-mail; include full model#, condition/accesories available, and asking price. Thanks. Tony
[Repeater-Builder] Re: Switching Power Supply vs. Astron Etc.
We replaced our troublesome Astron 50 amp, linear, rack mounted supply with a Duracomm switched mode model about a year ago. No problems whatsoever thus far. No noise at all on 70cm. Much lighter too; I didn't hurt my back lifting into the cabinet as I have with the Astron. --- In Repeater-Builder@yahoogroups.com, n9lv [EMAIL PROTECTED] wrote: With all the talk about switching power supplies, I asked a question but did not really see my answer. Currently I have an Astron 70 Amp power supply on the repeater system. I have access to a 100 Amp Audiopipe DSPS10012 switching power supply available for the repeater. What would be the (dis)advantage of using this power supply and release the 70 Amp Astron that is in line currently? Mathew
[Repeater-Builder] Re: Mastr II PA's
Not sure about pricing, but this firm should have what you need: https://newlondontechnology.com/ss/index.php --- In Repeater-Builder@yahoogroups.com, Jim Cicirello [EMAIL PROTECTED] wrote: Happy Holidays to the group! Is there anyone out there that is stocking Mastr II parts, like the Mobile PA's for a reasonable price? I used my last one yesterday and Dayton is still down the road. Thanks JIM KA2AJH
[Repeater-Builder] Re: repeater antenna suggestions
Our club's 1151-2 Station Master was installed professionally in 1990 and is still going strong. No SWR problems at all and excellent wind rating. I'd highly recommend you spend the extra $150 for a top notch antenna. --- In Repeater-Builder@yahoogroups.com, Sean Fitzharris [EMAIL PROTECTED] wrote: Here here!! The 1151-2 Station Master sells for around $650 and from what I can find on the net the HS9-43050 Hustler antenna sells for $500. Steve, I think your closer to affording it than you think. Do it right once and worry about it again in 20 years. -Sean If you're up on a rough site, where winds and ice/snow will break cheap antennas, take a look to see what else is on the tower. I bet you'll see Stationmaster antennas, maybe with anti-sway bars. As much as you can't afford it, how many antennas will you end up putting on the tower - and watching them come crumbling down - until you CAN afford it? Bite the bullet. Raise money somehow. Raffle off some used equipment. Get donations. Find a rich ham who can order/donate one. If you already have an investment in a good public-service repeater, do your community the justice they deserve and go with something rated for the environment you have. Bob M. == --- Steve Hutzley [EMAIL PROTECTED] wrote: Hello all, I know I'm asking a loaded question. Our club just lost our UHF antenna. The last straw was a wind storm. The make of the antenna that was up there is unknown. A stationmaster would be nice, but we cant afford it. A Decibel Products DB series - I hear are maintenance nightmares. We are looking at A hustler HS9-43050 - Any comments on the hustler antennas. Or other suggestions? 73 Steve N1TEC __ __ Cheap talk? Check out Yahoo! Messenger's low PC-to-Phone call rates. http://voice.yahoo.com
[Repeater-Builder] Access To National Tower Sites?
Has anyone had success in getting one or more of the national tower companies, such as American Tower, Crown Castle International, Global Signal, or SBA Communications, to provide gratis tower space for their club's ham repeater? If so, how did you do it? If not comfortable posting a reply in the forum, please a private e- mail. Thanks.
