[Repeater-Builder] Re: EPLRS System gone/moved
--- In Repeater-Builder@yahoogroups.com, skipp025 [EMAIL PROTECTED] wrote: The EPLRS System at Travis AFB (Northern California) has moved (gone) from the Repeater Portion of the 420-450 band. skipp skipp025 at yahoo.com Skipp: Do you know exactly when this happened? We have similar interference here in SoCal, but one particularly annoying source that seemed to center around 449.0 to 449.5 suddenly disappeared about a month ago. The reason it was so annoying was that even though it was only in the repeater output portion of the band for us, the amount of time the signal was present in a NBFM RX was long enough to pulse the carrier squelch open (it sounded like a fast chirp every few seconds when listening with a SSB RX). Bob NO6B 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] Mobile Duplexers
I cannot recall the Bands used for Public Saftey Freq.s when they used what was called Mobile Extenders, but I believe that they used 2 different bands in Michigan something like VHF Hi to VHF Lo . I was wondering if you were ( being more expense of course for the Volunteer ) using a VHF - UHF type of a repeater say VHF in UHF out or UHF in VHF out ? it may eliminate problems in can detuning from mobile vibration from what Jim B. is saying here. M. H. - Original Message - From: Jim B. [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Thursday, January 13, 2005 11:47 AM Subject: Re: [Repeater-Builder] Mobile Duplexers [EMAIL PROTECTED] wrote: Does anyone know if there is even a mobile duplexer made for the 2 meter HAM split? Make? Price? This is for a portable GR 300 repeater. Thank you. Rod KC7VQR No. Can't be done. To get the isolation you need for the 600Khz split on the 2M ham band, the cavities must be much larger, too large to be called 'mobile'. Plus the tuning adjustment will be touchy enough that the bouncing around will de-tune it. Portable repeaters for the 2M ham band don't work well. Getting rid of the desense takes some doing. It's not imposssible, but it ain't easy. -- Jim Barbour WD8CHL Yahoo! Groups Links 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] Micor PL Tx board request
A CONVERTED MOBILE OR A MICOR COMPA STATION / RT REPEATER PL BOARD? ___ Speed up your surfing with Juno SpeedBand. Now includes pop-up blocker! Only $14.95/month -visit http://www.juno.com/surf to sign up today! 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] Mobile Duplexers
I would like to thank all of you that replied to my question about mobile duplexer for 2 meter. I thought that was the case, but I had to ask to make sure. You answered my question; not the way I was hoping, but it was answered. Thank you. Rod KC7VQR 444.800 repeater 147.580 remote base 147.240 repeater 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] Extender splits
What we have in California, besides crazy drivers and traffic... The most common mobile extenders are on VHF, duplex versions run a non standard split about 5 Mhz wide. Power levels run from milli watts on up. Pyramid now makes them, GE PSS Inc. used to make them. Medical extenders are most often UHF and relative low power (10 watts). The CHP use a simplex extender, which sort of acts/operates like a simplex auto patch. It works pretty well, there is a scheme to stack repeater extender priorities when multiple units arrive on a scene. One legacy PS System (now out of service) I serviced used cross band, Tx on low band, 46Mhz, Rx on 153 Mhz high-band. It worked very well. If Motorola would have kept making the special order micor extender radios, they'd probably still be on it. cheers, skipp .radiowrench.com/sonic Mark Holman [EMAIL PROTECTED] wrote: I cannot recall the Bands used for Public Saftey Freq.s when they used what was called Mobile Extenders, but I believe that they used 2 different bands in Michigan something like VHF Hi to VHF Lo . M. H. 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] MSF 5000 key up delay problem
I'm looking to see if any one on the list that runs an MSF 5000 has experienced this problem. When I key up this VHF MSF and start counting, the repeater doesn't key up and start retransmitting untill I get to four. So there is about a good two second delay to repeater key up. When I hook up the test set the receive audio comes out the local speaker with no delay. The repeater keys up instantly with the local PTT switch. If the repeater is still keyed up during the hang time and you key back up again the audio comes through with no delay. As soon as you let the hang time expire it takes two full seconds of an incoming signal to get it to key up again. I've gone through all the delay setting in the RSS and set them to zero. I also tried setting everything back to default, and neither of these actions made any difference. If anyone has any ideas on what this could be I would very much appreciate it. Thanks, T.J. 73 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.
Re: [Repeater-Builder] Micor PL Tx board request
Yes, a Micor mobile converted to repeater. Gary K2UQ 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.
Re: [Repeater-Builder] Re: Mobile Duplexers
"skipp025" wrote: Hi Jim, I really don't want to argue with you, but it can be done and I've done it numerous times. It all comes down to a number game (the specs) and a reasonable approach. no6b wrote: I'd like to see the specs on what you've come up with. A key advantage of the 2.5 MHz split that I use is that at that spacing the G.E. RX front end has significant rejection: over 40 dB at the TX freq., so it can work with as little at 40 dB of duplexer rejection at the TX freq. 40 dB of rejection of the transmitter power may be enough to make it duplex, but I doubt 40 dB would be enough rejection of the transmitter sideband noise number. A 5 watt signal is +37 dBm. *Typical* transmitter sideband noise with a good radio set is likely -90 to -100 dB below the carrier at 2.5 mHz spacing. Many receivers intended for repeater service will hear a signal at -125 dBm. +37 minus 90 is negative 53 dBm. Now take -125 and subtract -53, and the duplexer will have to provide 62 to 72 dB of isolation. Now, use a PLL exciter and your right at that -40 number for both. Kevin Custer 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.
Re: [Repeater-Builder] EPLRS System gone/moved
On Friday 14 January 2005 12:09 pm, skipp025 wrote: The EPLRS System at Travis AFB (Northern California) has moved (gone) from the Repeater Portion of the 420-450 band. skipp skipp025 at yahoo.com Interesting information Skipp. [Warning: If you're reading this and you're not on Repeater-Builder, I BCC'd you on this message because you're probably interested in this information here in Colorado -- if you feel like replying publically you can. You've been warned! ;-) ] Denver has been very quiet this week and part of last week also, I think... knock on wood. Weak-signal users on one of the hardest hit repeaters in the Denver Metro area are once again copyable. I haven't checked to see if we can still hear Buckley AFB's system on any portion of the band yet directly here, I just noticed the input to that one hammered repeater went quiet and come to think of it probably two repeaters I know for sure were touched by the signal are in much better shape. I also haven't checked the weak-signal portion of the band. Perhaps *someone* finally got through to folks who could tweak the configuration a bit and reduce the impact to repeater inputs. If that *someone* is reading along, and there really have been some quiet changes made, I'll pre-emptively say THANK YOU from Colorado! I know from off-list communications that a number of good folks who work for the right places were interested and discussing the situation -- what I can't say (and maybe never will) with any certainty is if one of those people was in the right place at the right time to help the hams out. I can also say with certainty that the public response from the ARRL was dismal, at best. Again, knowing that things sometimes happen behind closed doors I don't want to offend any ARRL person who helped with this, but the information I received back in private via second-hand communication was absolutely disheartening. At the very least our national group has done a pretty horrible job of getting the news out about this. But... again, knowing that they might have had to play some politics... I'm not here to place blame. (Heck, it's the Internet -- 20 or 30 other people will do that for me!) What's really interesting is that you guys are upside-down from us there in your part of California, aren't you? We're low-in/high-out on UHF here. That would mean they had to either lower output drastically in the entire band or they were given good instructions from someone clueful who explained how to avoid the repeater inputs. I heard also privately that the Camp Pendleton system is absolutely horrid -- no point in even attempting to use a UHF radio near them when they have a large training exercise going. Would be interesting to hear from that area again and see how they're doing now... (hint. hint. GRIN.) Keep your fingers crossed! We're still secondary, but it's awfully nice of Uncle Sam to shuffle things around a bit in their configuration, if that's what's happened to create the sudden quiet. -- Nate Duehr, [EMAIL PROTECTED] - WY0X 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] MDM RADIO - Grand moving sale
Dear friends; MDM Radio Ltd . is moving to new smaller quarters about April 30 2005. We regret having to leaveour present location in Melrose Park, IL. but, the downturn of business and ever increasing costs dictate this change. We fully intend to remain serving the communications industry as we have for the past 15 years but, with a more modern leaner more efficient operation. We invite you to visit us now and cherry pick thru the 10,000 items we currently have crammed into this building. Don't hesitate..don't procrastinate...don't say that you'll do it some day...those days never come. DO IT NOW!! Get abunch of folks together split the gas and come on in. Make certain you bring a large vehicle...we'll help load it. We will make oursleves available to suit your time schedule, evenings, weekends, Saturday and Sunday, we want everyone to get a chance to grab this stuph before we are forced to dispose of it. We have already scrapped some items that we deemed worthless.The aluminum chassis parts were worth more than the electronics and that is the case with much of what we have unfortunately for us but, fortunate for you. We have tons and I mean tons of used radios that have a fortune in transistors which are no longer available from Motorola and for which replacments cost $30-60 each ...we are selling these radios for $10. And the bigger the pile the cheaper it gets. Moving Tonage is the main motivation. For those involved in vehicle restorations we have Motrac Mocom 70,and GE Mastr pro control heads speakers and mikes and probabaly a few radios to restore that old police cruiser or fire truck to authentic condition with vintage radio equipemnt. Don't wait we can't hold out forever. Get here NOW!! Grab a load. Better it should reside in your garage than a land fill. Please take this seriously. Time is short. If you can't get here and are looking for something call us we'll ship it to you. We won't tell your wife we promise. We'll send stuff to someone elses house, she'll never find out from us. We have 2000 manuals Motorola, GE, Johnson and other manufacturersavailable for this equipment and others. Test equipment, and parts , parts, parts, (remember parts is parts.) 708-681-0300 for help, orders or directions. www.mdmradio for map to our location. We hope to see you here soon. Ted and Dan MDM Radio Ltd - 708 - 681.0300 FAX 708 - 681.9800 1629 N. 31 st Ave. Melrose PArk, IL 60160-1837 email - [EMAIL PROTECTED] - or - [EMAIL PROTECTED] Mastercard and Visa - website http://www.mdmradio.com "If its in stock...we've got it!" Ted Bleiman K9MDM MDM Radio Ltd - 1629-B N. 31 st Ave Melrose Park, IL 60160 708.681.0300 fax 708.681.9800 web http://www.mdmradio.com - Check it now!! Do you Yahoo!? Take Yahoo! Mail with you! Get it on your mobile phone. 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.
[Repeater-Builder] eBay: GE Custom MVP 2M repeater
For anyone interested, I have for auction a GE Custom MVP 2M repeater, already duplexed with Hamtronics COR-3 controller, voice IDer, and power supply: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=5744568885 - Rob, N1NTE 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] Re: MSF 5000 key up delay problem
--- In Repeater-Builder@yahoogroups.com, T.J. [EMAIL PROTECTED] wrote: I'm looking to see if any one on the list that runs an MSF 5000 has experienced this problem. When I key up this VHF MSF and start counting, the repeater doesn't key up and start retransmitting untill I get to four. So there is about a good two second delay to repeater key up... _ One possible cause of that behavior would be if your station was ever set up for use with a Motorola Spectra-TAC voting system. In such systems the normal repeat audio path is through the voting comparator and back to the station through the wire-line. A station that is set up for Spectra-TAC and is also set up as a repeater has a mode called in-cabinet repeat. Basically what happens is that when the receiver unsquelches, the controller expects to receive a line key command from the voting comparator. If that never comes - the station will eventually key up and repeat in-cabinet. That would exactly account for what you are seeing. If your station does have Spectra-TAC enabled, it would be preferable for you to load a conventional non Spectra-TAC codeplug, however you could go to the Edit Advanced Information page three and try setting the S-Tac Clear Repeater Delay parameter to zero. You can tell if your station has Spectra-TAC enabled by going to the F8 Station Model / Options screen in F4 Change / View. 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] MSF 5000 key up delay problem
I had a R100 that did the same thing. Turned out to be a leaky "and" gate- the hang timer cap had to charge before tx would begin. Hope that helps. Will, KC4YBZ In a message dated 1/15/2005 11:51:24 AM Central Standard Time, [EMAIL PROTECTED] writes: I'm looking to see if any one on the list that runs an MSF 5000 has experienced this problem. When I key up this VHF MSF and start counting, the repeater doesn't key up and start retransmitting untill I get to four. So there is about a good two second delay to repeater key up. When I hook up the test set the receive audio comes out the local speaker with no delay. The repeater keys up instantly with the local PTT switch. If the repeater is still keyed up during the hang time and you key back up again the audio comes through with no delay. As soon as you let the hang time expire it takes two full seconds of an incoming signal to get it to key up again. I've gone through all the delay setting in the RSS and set them to zero. I also tried setting everything back to default, and neither of these actions made any difference. If anyone has any ideas on what this could be I would very much appreciate it. Thanks, T.J. 73 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.
Re: [Repeater-Builder] MDM RADIO - Grand moving sale
Dang website still not accessable from here,very strange! Tried 5 different computers on different addresses,no go...must be blocked somewhere in cyberhell? Wish I could make it but I cant Ted Bleiman K9MDM - MDM Radio wrote: Dear friends; MDM Radio Ltd . is moving to new smaller quarters about April 30 2005. We regret having to leave our present location in Melrose Park, IL. but, the downturn of business and ever increasing costs dictate this change. We fully intend to remain serving the communications industry as we have for the past 15 years but, with a more modern leaner more efficient operation. web http://www.mdmradio.com - Check it now!! 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] ** New Motorola information available from Repeater Builder **
General Announcement: Motorola Maxtrac Information I'm happy to announce that we have another Scott that knows his way around the Motorola line. Scott Lichtsinn, KB0NLY has provided information to Mike Morris WA6ILQ on a combined website project to provide a bunch of good information on the Motorola Maxtrac radio set. There is too much information to list everything, so I suggest you follow the link to the new part of the site. I'll take this time to thank Scott and Mike for a job well done. Please take a look: http://www.repeater-builder.com/maxtrac/maxtrac-index.html Remember that the Maxtrac and Radius line can be discussed in detail at the Motorola-Radius list here on YahooGroups: http://groups.yahoo.com/group/Motorola-Radius/ Kevin Custer Website Owner 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/
