Re: [Repeater-Builder] spectrum analyzer
At 12/29/2005 20:34, you wrote: >Does anybody know if the atten or madell spectrum analyzers on ebay >are any good. > >Thanks >Denny >ka3sxq I replied to a similar question a few months ago but can't find it in any of my subscribed groups. They appear to be identical to the "Hameg" brand which I occasionally use at work. They do work, though the frequency calibration is essentially non-existent & there is no absolute amplitude calibration. The amplitude linearity & flatness w.r.t. frequency is pretty good, so they should be good for measuring spectral purity. Only 2 resolution bandwidths available, 20 & 400 kHz, so forget about any NBFM bandwidth measurements. 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] WTS Sinclair Duplexer VHF
Dick, Yours is the 15th reply. It has been claimed and will ship Jan 3 to Steve Kometz in Reno. Roger -Original Message-From: Dick <[EMAIL PROTECTED]>To: Repeater-Builder@yahoogroups.comSent: Wed, 28 Dec 2005 08:59:30 -0800Subject: Re: [Repeater-Builder] WTS Sinclair Duplexer VHF Roger: Do you still have it? TNX & 73, Dick W1NMZ in Orange County, CA - Original Message - From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: 24 December, 2005 17:59 Subject: [Repeater-Builder] WTS Sinclair Duplexer VHF Storage shed is too full. I need to place into someone's hands a genuine Sinclair hybrid-ring duplexer. It is currently tuned to 147.090 MHz. Our repeater group replaced the Sinclair by Wacom duplexer in 1980 when we moved down to 147.080 per the band plan. I've had the sinclair in my high and dry basement shop until this summer. It's now in my heated, dry storage unit. It is in original condition. It's free. BUT, you pay the freight! Photos (jpeg) can be provided with a 48 hr wait period. If no one wants it. Jan 02, it's going to the metal recycler. Roger Hansen, W6TOZ Mount Vernon, WA 98274 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 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.
[Repeater-Builder] spectrum analyzer
Does anybody know if the atten or madell spectrum analyzers on ebay are any good. Thanks Denny ka3sxq 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] Lots of on line calculators communication related
Book mark this site! Great info. http://www.csgnetwork.com/communicateconverters.html tom n8ies "BIG BROTHER IS WATCHING YOU!" This message brought to you by the US Department of Homeland Security 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.
Re: [Repeater-Builder] Re: Intermod program
I got lucky and located my old DOS program on a floppy. Don't remember what "brand" it is, but I'm all set. Thanks, Chuck Al Wolfe wrote: >Chuck, >There is an old DOS program, rfs.exe, from rfspec.com that works OK. Old >and clunky but it's free. > >73, >Al, K9SI > > > > >> Date: Thu, 29 Dec 2005 09:08:43 -0500 >> From: "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> >>Subject: Intermod program >> >>I'm looking for a decent intermod program. I'm aware of the one from EMR >>called IMCALC, but don't particularly care for it. Anything else out >>there? I poked around with Google, but didn't have much luck. >> >>Chuck >>WB2EDV >> >> >> > > > > > >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/
[Repeater-Builder] Re: Intermod program
Chuck, There is an old DOS program, rfs.exe, from rfspec.com that works OK. Old and clunky but it's free. 73, Al, K9SI > Date: Thu, 29 Dec 2005 09:08:43 -0500 > From: "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> > Subject: Intermod program > > I'm looking for a decent intermod program. I'm aware of the one from EMR > called IMCALC, but don't particularly care for it. Anything else out > there? I poked around with Google, but didn't have much luck. > > Chuck > WB2EDV > 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] New Repeater--Need Advice!
jrinnebraska <[EMAIL PROTECTED]> wrote: > 1. I need a duplexer for this system--what are your thoughts on > cavities, etc. Don't try to go too cheap on you duplexer, it is a common error that new repeater owners make. They sometimes spend more on a controller that talks and makes fancy beeps, but buy crappy duplexers. The size of the cavities are just as important as the number. 6 inch diameter is the minimum, in my opinion, and will take at least 6 cans to work well. Once you go to 8 or 10 inch diameter, you can get away with 4 cans. Another consideration is what other rf systems are at your site. I was able to use 4 small cans at my house, but they would never work at a high RF level site. Look for BP/BR (bandpass/band rejec)t duplexers, but there may be other combinations of cans that are available. I have a set of Wacom duplexers that are a combination of BP/Br and bandpass. > > 2. Does anyone have a set of cavities we can find cheap? What's the > best bet for cavities--size, number, etc. Again, put your money in the duplexer. The best antenna, feedline and repeater will work crappy with the wrong duplexers. Been there, done that, sold the crappy duplexers and got a nice set of older Phelps-Dodge cans. 73 and gud luck, Joe, K1ike 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] GE Mastr II UHF PLL Exciter
Here are a few questions for the senior RF/GE guys. Referencing the GE Mastr II VHF PLL Exciter, does anyone know how fast the /4 divider will operate to? Does anyone know how high the harmonic amplifier and phase detector will operate at? I have seen some references that people have these operating at 222 MHz, but I'm curious if the /4 divider will operate to 450 MHz and the phase detector will operate to 112.5 MHz. Anyone have any knowledge on this? Thanks, Chris N5IUF 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.
RE: [Repeater-Builder] New Repeater--Need Advice!
JR, Don't knock the Kenwood just because "it's not a big Motorola box"... I used to run a Motorola MSR2000 and recently put a Kenwood TKR-820 on the air to replace it. (The MSR2000 was a "problem child" I inherited...) The Kenwood has been a very good "fit" for us and is operating flawlessly. It does take a bit of effort to get all the bugs worked out, but so does almost every other repeater project. My county EMA also funds our operation - they provide all the primary equipment, site, and support (electrical, etc.) needs for the repeater; and the ham club (Plainfield Radio League) obtained the frequency coordination. It's great when the government and the ham community can work together, isn't it?? We are using a CAT-300 controller for our repeater. This gives us the ability to have voice ID, autopatch, remote control/administration, etc. (We are not using the autopatch though, simply because there is no telephone service to the site yet.) Cost was reasonable - this might be an option you'd want to consider. And it interfaces fairly easily to the Kenwood... Don't apologize for being a "repeater novice" - we all were novices at one time or another, and I still consider myself a novice. :-) Good luck in your endeavor, and if you're in the Joliet, IL area, try the WW9AE 444.550 (+ offset, PL 114.8) repeater. Mark - N9WYS Asst. Chief, Field Services Div. - Will County (IL) EMA Repeater Trustee - WW9AE/R -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of jrinnebraska Sent: Thursday, December 29, 2005 9:51 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] New Repeater--Need Advice! I'm putting up a repeater in my local area--coordinated frequency is 146.895, going to tone it at 123.0. The repeater is a Kenwood 270--I know it's not a big Motorola box, etc., but the price was right--FREE! I've had it checked and reset for the new frequency and it works just fine--puts out 48 watts steadily. Local Emergency Management Agency will provide antenna, feedline and installation, we're closing in on a couple of site locations right now. My questions are these: 1. I need a duplexer for this system--what are your thoughts on cavities, etc. 2. Does anyone have a set of cavities we can find cheap? What's the best bet for cavities--size, number, etc. 3. What do you recommend for ID'ers--need to be compatible with the Kenwood. 4. What about remote controlling of the repeater? The sites we're looking at don't have phone lines available--will probably have to use some remote control--what do you suggest? I do have some Motorola Syntor UHF units that could perhaps be utilized...or should I be looking for some used 220 band stuff? 4. What else will be needed? I'm a novice in the repeater world... You can reply offline if you wish to me at: [EMAIL PROTECTED] or through the board, I suppose! Thanks to all! Jim (JR) Reider, K0JWR Nebraska Region 15 ARES/RACES Emergency Coordinator Region 15 CERT Coordinator 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] Thanks for the Micor 220
Hello Everyone from Don KA9QJG, I would Like to Give a Big Thanks to Scott, Who has been very busy, But took time to Build My 224.740 Micor repeater, I got it Yesterday and it was Plug and Play, I had a RF engineer Ham Friend come over and He put it on the Motorola Service Monitor. Told me to turn down the Gain for checking the Receiver, I already had it down all the way and still heard it. He Listened to the Incoming and out going audio and was amazed it Was Identical, Stated it was the Best He had ever heard. It is Fun trying to do this ourselves only if We have the Knowledge and the Right Equipment, But It is also Great to Have it done with the Knowledge of Kevin, Scott and Many others on this Group, also putting things sometimes in Layman Language so all can understand it, I Just wanted to say a Big Thank You to all and wish Everyone a Very Safe and Prosperous New Year PS If Anyone gets around the Hammond In. area Get on 224.740 131.8 and Say Hello If the Repeater dos not hear you it is Your Radio not the Big M Micor Ha Ha 73 De Don KA9QJG 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] New Repeater--Need Advice!
jrinnebraska wrote: >I'm putting up a repeater in my local area--coordinated frequency is >146.895, going to tone it at 123.0. > >The repeater is a Kenwood 270--I know it's not a big Motorola box, >etc., but the price was right--FREE! I've had it checked and reset >for the new frequency and it works just fine--puts out 48 watts >steadily. > >Local Emergency Management Agency will provide antenna, feedline and >installation, we're closing in on a couple of site locations right >now. > >My questions are these: > >1. I need a duplexer for this system--what are your thoughts on >cavities, etc. > > > You should try and get yourself a TX/RX set of cavities if you can afford it. Six cavity pack would be ideal, but a "four pack" will probably work just fine at 50 watts. (don't use a preamp). Try to get as high quality of an antenna as you can for the system, and stay as far away from RG 8 or times LMR 400 as you can. (1/2" hardline for runs up to about 100 feet or so). You will avoid a lot of noise problems and trips to the site by doing it right. The jumpers from your cavities to your transmitter, and receiver should be double shielded RG 214, or RG 142. Use only N-type connectors if you can. >2. Does anyone have a set of cavities we can find cheap? What's the >best bet for cavities--size, number, etc. > > > EBAY is a good place to start looking. Generally cheaper cavities would include the WACOM stuff (no longer made, but available used), or Telewave. TX/RX, and EMR both offer discounts to tha amateur radio community. >3. What do you recommend for ID'ers--need to be compatible with the >Kenwood. > > If you are going to use the Kenwood internal controller (sory, I know nothing about kenwood). Get yourself and ID-8 module from communications specialists. That board is very flexible and can store several CW messages. >4. What about remote controlling of the repeater? The sites we're >looking at don't have phone lines available--will probably have to use >some remote control--what do you suggest? I do have some Motorola >Syntor UHF units that could perhaps be utilized...or should I be >looking for some used 220 band stuff? > > > Look for a Motorola GM300, Maxtrac, or anything on UHF that will do ham band. Again EBAY. Also, batlabs.com is full of suggestions for using Motorola gear and making sure it is what you want. >4. What else will be needed? I'm a novice in the repeater world... > > You should consider and external controller such as a Link Communications unit, or Arcom's RC210 (less expensive). These units will all help you remain legal (FCC Standards) by allowing you to set up, maintain control, and properly identify your station. (If you use the external control, the ID-8 module won't be needed). Hope that helps ... my 0.02 worth. James WJ1D 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] New Repeater--Need Advice!
Jim, 1) For VHF, I'm guessing that you are running a 600khz split? If so at 48watts out of the transmitter, you want at least four (4) , base station type, band-pass/band-reject cavities to avoid desense. TX/RX systems makes a great 4 cavity duplexer for vhf but if you could find a good condition Telewave, WACOM, or CelWave that would be fine as well. Any more than 50watts in the future and you may need extra cavities. 2) Instead of hooking in a plain id'er to the repeater, I would check out some of the cheap repeater controllers that are available. Micro Computer Concepts for a little over $100 makes two different ones. They ID and give you remote control over the repeater as well as some tail and some simple courtesy beeps. There are others, but I have had good luck with his. Andy KC2GOW Yahoo! Shopping Find Great Deals on Holiday Gifts at Yahoo! Shopping 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.
[Repeater-Builder] New Repeater--Need Advice!
I'm putting up a repeater in my local area--coordinated frequency is 146.895, going to tone it at 123.0. The repeater is a Kenwood 270--I know it's not a big Motorola box, etc., but the price was right--FREE! I've had it checked and reset for the new frequency and it works just fine--puts out 48 watts steadily. Local Emergency Management Agency will provide antenna, feedline and installation, we're closing in on a couple of site locations right now. My questions are these: 1. I need a duplexer for this system--what are your thoughts on cavities, etc. 2. Does anyone have a set of cavities we can find cheap? What's the best bet for cavities--size, number, etc. 3. What do you recommend for ID'ers--need to be compatible with the Kenwood. 4. What about remote controlling of the repeater? The sites we're looking at don't have phone lines available--will probably have to use some remote control--what do you suggest? I do have some Motorola Syntor UHF units that could perhaps be utilized...or should I be looking for some used 220 band stuff? 4. What else will be needed? I'm a novice in the repeater world... You can reply offline if you wish to me at: [EMAIL PROTECTED] or through the board, I suppose! Thanks to all! Jim (JR) Reider, K0JWR Nebraska Region 15 ARES/RACES Emergency Coordinator Region 15 CERT Coordinator 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] Intermod program
Chuck, An intermod calculator is one of many useful programs in CommShop for Windows. The software includes programs for calculating cable attenuation, duplexer isolation requirements, great-circle distance calculation, and even a loan amortization program. I'm very pleased with the software. Here's the Web site: http://www.dcico.com/dcilmr.htm 73, Eric Lemmon WB6FLY From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED]Sent: Thursday, December 29, 2005 6:09 AMTo: Repeater-Builder@yahoogroups.comSubject: [Repeater-Builder] Intermod program I'm looking for a decent intermod program. I'm aware of the one from EMR called IMCALC, but don't particularly care for it. Anything else out there? I poked around with Google, but didn't have much luck.ChuckWB2EDV 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.
[Repeater-Builder] Re: Mitrek 70CM problem
Good thought. The repeater was taken up there pre-installed in a cabinet with all the wiring in place (i.e. jumpers). All that had to happen was hook up feedline and plug it in. You may have a very good point. The antenna and feedline have been there several years. --- In Repeater-Builder@yahoogroups.com, Kevin Custer <[EMAIL PROTECTED]> wrote: > > Scott wrote: > > >Well, here is the setup, and the problem: > > > >Setup: > >Moto Mitek trunk mobile on 70CM with CAT 250 controller, and control > >head intact (mic disconnected). TX-RX duplexers (GE flavor, 3 cavity) > >retuned. Uses stock tone board for incoming tone, Com-Spec board for > >outgoing. Running about 25W into duplexer. > > > >Problem: > >Worked OK for a month in the shop on a small antenna, about a day at > >the site, then now the RX audio is not there unless you are at the > >site. Also you get a wierd growling like feedback and cycling of the > >TX for a minute. > > > > Since you said it worked okay at the shop, I'll assume that the duplexer > isn't insufficient for your needs. > > I'd suspect interconnecting coax (from the duplexer to the radio set) or > the antenna and feedline you switched it to. > > Put the repeater (duplexer output) on a dummy load and see if the > weirdness goes away. If it does, suspect the antenna and/or feedline > you moved the repeater onto. > > Kevin > 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] Intermod program
I'm looking for a decent intermod program. I'm aware of the one from EMR called IMCALC, but don't particularly care for it. Anything else out there? I poked around with Google, but didn't have much luck.ChuckWB2EDV 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.
Re: [Repeater-Builder] Mitrek 70CM problem
Scott wrote: >Well, here is the setup, and the problem: > >Setup: >Moto Mitek trunk mobile on 70CM with CAT 250 controller, and control >head intact (mic disconnected). TX-RX duplexers (GE flavor, 3 cavity) >retuned. Uses stock tone board for incoming tone, Com-Spec board for >outgoing. Running about 25W into duplexer. > >Problem: >Worked OK for a month in the shop on a small antenna, about a day at >the site, then now the RX audio is not there unless you are at the >site. Also you get a wierd growling like feedback and cycling of the >TX for a minute. > Since you said it worked okay at the shop, I'll assume that the duplexer isn't insufficient for your needs. I'd suspect interconnecting coax (from the duplexer to the radio set) or the antenna and feedline you switched it to. Put the repeater (duplexer output) on a dummy load and see if the weirdness goes away. If it does, suspect the antenna and/or feedline you moved the repeater onto. Kevin 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/
