[Repeater-Builder] db products 4060
Hello gang, I am wondering what the opinion is of the decibel products db4060 duplexers for 2m service. We have a set that are nearing 30yrs old and looking for a replacement. The current model never really preformed as well as the specs. Is this an experience shared by anyone else? Thanks, Aaron ka0zoz
[Repeater-Builder] Re: db products 4060
Hi Aaron, You may wish to look at this article on the repeater builder site. It explains a common problem you may be having. http://www.repeater-builder.com/db/db-4060-4062-repair.pdf 73 Bernie Parker K5BP --- In Repeater-Builder@yahoogroups.com, Aaron Sloan [EMAIL PROTECTED] wrote: Hello gang, I am wondering what the opinion is of the decibel products db4060 duplexers for 2m service. We have a set that are nearing 30yrs old and looking for a replacement. The current model never really preformed as well as the specs. Is this an experience shared by anyone else? Thanks, Aaron ka0zoz
Re: [Repeater-Builder] Re: db products 4060
Hi Bernie, We have replaced one johanson cap over the years. We have them professionally tuned every couple of years and they are OK but the isolation isn't anything to get excited about. I suppose we could order new caps, replace them all and start fresh. Can we do significantly better with a newer duplexer, even if these were in manufacturers spec? Aaron dallasreact112 wrote: Hi Aaron, You may wish to look at this article on the repeater builder site. It explains a common problem you may be having. http://www.repeater-builder.com/db/db-4060-4062-repair.pdf http://www.repeater-builder.com/db/db-4060-4062-repair.pdf 73 Bernie Parker K5BP --- In Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com, Aaron Sloan [EMAIL PROTECTED] wrote: Hello gang, I am wondering what the opinion is of the decibel products db4060 duplexers for 2m service. We have a set that are nearing 30yrs old and looking for a replacement. The current model never really preformed as well as the specs. Is this an experience shared by anyone else? Thanks, Aaron ka0zoz
Re: [Repeater-Builder] Re: db products 4060
At 8/12/2008 07:28, you wrote: Hi Aaron, You may wish to look at this article on the repeater builder site. It explains a common problem you may be having. http://www.repeater-builder.com/db/db-4060-4062-repair.pdf ...a reason why I never liked duplexers containing lumped elements (capacitors). There are many successful designs in use that don't use relatively fragile components. The Sinclair Q-202G Wacom WP-6?? 2 meter duplexer (can't remember the exact model #) come to mind, using a robust transmission line element to provide the antiresonant element instead of lumped capacitors inductors. Bob NO6B
[Repeater-Builder] Re: ACC RC-85 / Kenwood TS-440S Remote Base Questions
re: audio level As mentioned by Jim and the ACC Notes Idea... a pot would be the more practical way to go. However, a series resistor also works. You could series insert a 500K pot, try to target a desired audio level and replace the pot with a equivalent fixed resistor. Just another option/idea... cheers, s. [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: I have a UHF Repeater using an ACC RC-85 repeater controller, which also controls a Kenwood TS-440 HF Transceiver as the Remote Base radio. All the HF Radio control commands seem to work fine, except the Bump Down 500 Hz command. The command is [Remote Base Prefix] 7 - it just has no reponse. But the Bump UP 500 Hz and the other Bump Up/Down - 20 Hz and 100 Hz step commands work just fine. It's not a problem decoding the 7 - the Touchtone Pad Test reads back all digits correctly. The touchtone decoder in the RC-85 seems to work extremely well and decodes noisy signals without falsing. I can be mobile, using just a handheld radio that's choppy into the repeater, and dial around on the HF radio with hardly ever having a missed digit. The other minor problem I'm having is that the transmit audio for the TS-440S is so hot coming from the RC-85 that it's unusable. The output of the RC-85 transmit audio is fixed level, and is controlled by the inputs from the receiver (in this case, the UHF repeater receiver.) If I turn down the level of the receive audio to the controller so that the TS-440 transmit audio is at the proper level, then the controller doesn't have enough audio output to drive the main UHF transmitter to more than about 2 kHz deviation. I'm feeding the transmit audio into the TS-440's AFSK IN rear-panel jack, as suggested in the RC-85 manual. Using this input, the TS-440 front-panel mic gain control has no effect on the transmit audio level from the AFSK IN jack. Looking at the RC-85 manual and in an old issue of ACC Notes which describes RC-850 and RC-85 transmit audio level setting procedures, it suggests padding down the output of the transmit audio using an attenuator or resistive voltage divider. Anyone tried this and have any starting values? Lots of fun! Larry K7LJ
[Repeater-Builder] Re: Micor UHF Repeater Station Manual
Thank you this will help everyone! --- In Repeater-Builder@yahoogroups.com, Eric Lemmon [EMAIL PROTECTED] wrote: A scanned PDF in Full-Page format of the Micor UHF Station manual 68P81025E50-H has been uploaded to the Files section of the Motorola-Micor Group. This is a temporary location while arrangements are made to publish the same document in the Micor Station section of the RBTIP. Since the complete manual is over 18 MB, it is in five parts. The companion Control and Application Manual 68P81025E60 will follow in a week or so. Enjoy! 73, Eric Lemmon WB6FLY
[Repeater-Builder] Spectrum Communications Corp repeater help needed
I have posted earlier that Spectrum Communications Corp is now out of business. I have a Spectrum Communications Corp S-7R 6 meter repeater I am trying to put in service. Here are the issues I have and I hope someone can help me out: 1The receiver synthesizer seems to be dead. Does any one have a schematic of the synthesizer? 2Does anyone have a matrix for the dip switches for the RX frequency setting? If I can not get the synthesizer to work my plan is to remove the synthesizer and integrate a Motorola Low band channel element and add a multiplier circuit as a LO to input into the 21.4MHz mixer. Any comments or help would be appreciated. Thanks, Glenn Maclean WA7SPY
[Repeater-Builder] Re: UHF MICOR Unified Chassis
Are you sure you have the encode board plugged in with a reed plugged in? --- In Repeater-Builder@yahoogroups.com, n9wys [EMAIL PROTECTED] wrote: More information about this project. I have the station working - receiving, decoding proper PL tone, repeating, transmitting audio, etc. The only thing it is NOT doing is encoding tone for transmit. (A reminder - this is a Community Repeater MICOR chassis, NOT the standard repeater chassis.) Anyway - from what I can tell, the Master Control module is NOT sending tone out to the modulator. The problem I have is this: the manual supplement I have shows a different Master Control module that what I have. My modules are not IC-based, the ones on the manual are. Therefore, I believe the schematic and operation for the module I have is completely different than that in the manual. Does anyone have an earlier issue of the Community Repeater manual - 68P81025E55 (probably revision A, since mine is a B)? *ALL* I think I need are the pages pertaining to the Master Control Module - part #TLN5803A. (Other part numbers may be: TLN8780A or TLN1684A - these are numbers stamped on the flange of the card - the first number above was printed right on the circuit board.) The module referenced in my manual is TRN6165A. For those with a manual - I am seeing tone at Pin 7 (Tone PL Out) but not at Pin 2 (Tone or Binary PL to Modulator) on the Master Control module. I tried merely jumpering Pin 7 to Pin 2 - doesn't work. Because the schematic and board layout is completely different, I have no reference to be able to chase signal through the circuit. I'm also wondering if a required jumper is missing or a jumper is improperly installed on my Master Control card. Thanks! Mark - N9WYS
[Repeater-Builder] Re: Duplexer Source.....
I agree, I have had very good luck with TX-RX --- In Repeater-Builder@yahoogroups.com, KD4PBC [EMAIL PROTECTED] wrote: You can't beat TX-RX systems. www.txrx.com Custom made just for you . Robert / KD4PBC -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Don Spivey Sent: Friday, August 08, 2008 8:27 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Duplexer Source. Can anyone point me toward a good source for a new vhf duplexer?? No doubt there are many dealers still around, but from personal experience is there one that stands out regarding price and service?? I've operated vhf repeaters for 30 years now, one of my first is still on the air, same repeater, still used daily. I have a prime location opening up and since it's on a public service tower, I need a good duplexer. I have at least 4 or 5 Sinclair and Wacom's setting around, but all show signs of lightning, missing silver plating, missing finger stock, etc. One of these would be fine with some TLC for a lower power neighborhood machine but not a repeater that is expected to be there for Emergency Management issues at maximum range. Thanks for any information provided.de...N5MZQ...Don.. Yahoo! Groups Links
[Repeater-Builder] The new RLC Digital Repeater contoller
Anyone have any experience with the new Link Communications repeater controller? (RLC-DSP)
[Repeater-Builder] Re: Duplexer Source.....
The Wacom duplexers are very good! --- In Repeater-Builder@yahoogroups.com, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Don, I have 2 Wacom duplexers used but in excellent shape. One is a WP-639 (2 meter) and a WP-652A (220). Also have 3 TX-RX new in original boxes models 28-37-11E (6 can 2meter), 28-52-02A (220) and a 28-52-04319-A (220) and 1 new 220 pass cavity 11-54-01. I will tune to your frequency. If anyone else is interested contact me off list. I can be reached at [EMAIL PROTECTED] . Price negotiable. Paul Maggiore AA3VI Click here to lower your monthly payments. Act now and save! http://thirdpartyoffers.juno.com/TGL2141/fc/Ioyw6i3oMFMsTYPpeZCbAkVed0IUX1guPVCi0GNMhQumV4dmnp1LpW/
[Repeater-Builder] Scanner as repeater receiver?
Has anyone used a good quality scanner as a receiver for a repeater and if so, how well did it work? I'm contemplating a Radio Shack PRO-2055 as it seems to have good receive capability and picks up signal better than some of our mobile radios. Jeff Skaggs Concord-Greene FD
[Repeater-Builder] Re: Micor Power Supply
Thanks Eric: I will contact Motorola Parts. Ken WB6MMV --- In Repeater-Builder@yahoogroups.com, Eric Lemmon [EMAIL PROTECTED] wrote: Ken, The information you seek is contained in the Power Supply Service Manual, publication 6881094E30, which is available from Motorola Parts for about $19. Call 800-422-4210 to place an order. This is an extremely valuable reference manual, and once the existing stock is depleted it probably will be NLA. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of wb6mmv Sent: Monday, August 11, 2008 8:06 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Micor Power Supply I recently received a Micor repeater power supply from an SK and was wondering if there are any schematics available for it? The model number is TPN 1217B. Thanks Ken WB6MMV
[Repeater-Builder] Re: ACC RC-85 / Kenwood TS-440S Remote Base Questions
Jim is correct by adding the pot to the input of the TS-440 jack. But, just don't forget to re-adjust the input receiver pot on the RC- 85 back top the correct level for repeat and decoding as set forth in the manual. I do believe that one of the last revisions of the RC-85 firmware either broke or fixed the 'Bump Down' function. I can't remember which one because I had reported that problem to ACC in the ShackMaster product which used the same code. Keith --- In Repeater-Builder@yahoogroups.com, Jim Brown [EMAIL PROTECTED] wrote: Since you don't have control of the audio level anywhere else, I would suggest using a potentiometer as the attenuator. Hook the output of your remote base audio to both ends of the pot, and take the input to the TS-440 RCA jack from the center lead of the pot. Hook the ground end of the pot to the ground from the controller and to the ground on the RCA jack. A 10 K pot should give you all the control you need to set the levels. Typical convention is to let the clockwise rotation of the pot increase the level, so use the correct terminals on the pot to give this action. 73 - Jim W5ZIT --- On Mon, 8/11/08, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: From: [EMAIL PROTECTED] [EMAIL PROTECTED] Subject: [Repeater-Builder] ACC RC-85 / Kenwood TS-440S Remote Base Questions To: Repeater-Builder@yahoogroups.com, [EMAIL PROTECTED] Date: Monday, August 11, 2008, 11:17 AM I have a UHF Repeater using an ACC RC-85 repeater controller, which also controls a Kenwood TS-440 HF Transceiver as the Remote Base radio. All the HF Radio control commands seem to work fine, except the Bump Down 500 Hz command. The command is [Remote Base Prefix] 7 - it just has no reponse. But the Bump UP 500 Hz and the other Bump Up/Down - 20 Hz and 100 Hz step commands work just fine. It's not a problem decoding the 7 - the Touchtone Pad Test reads back all digits correctly. The touchtone decoder in the RC- 85 seems to work extremely well and decodes noisy signals without falsing. I can be mobile, using just a handheld radio that's choppy into the repeater, and dial around on the HF radio with hardly ever having a missed digit. The other minor problem I'm having is that the transmit audio for the TS-440S is so hot coming from the RC-85 that it's unusable. The output of the RC-85 transmit audio is fixed level, and is controlled by the inputs from the receiver (in this case, the UHF repeater receiver.) If I turn down the level of the receive audio to the controller so that the TS-440 transmit audio is at the proper level, then the controller doesn't have enough audio output to drive the main UHF transmitter to more than about 2 kHz deviation. I'm feeding the transmit audio into the TS-440's AFSK IN rear-panel jack, as suggested in the RC-85 manual. Using this input, the TS-440 front- panel mic gain control has no effect on the transmit audio level from the AFSK IN jack. Looking at the RC-85 manual and in an old issue of ACC Notes which describes RC-850 and RC-85 transmit audio level setting procedures, it suggests padding down the output of the transmit audio using an attenuator or resistive voltage divider. Anyone tried this and have any starting values? Lots of fun! Larry K7LJ __.__
AW: [Repeater-Builder] Height Gain figure
dear friends if anybody is interrested in figure out a radio location then try out the program radio mobile http://www.cplus.org/rmw/english1.html you can build networks ... repeatersites ... etc. there are heights data from a space mission where the heights of the whole worlds were measured by radar put your repeater on its location, fill in the data for pwr, antenna gain etc. and see what happens best 73´s de dg9bfc -Ursprüngliche Nachricht- Von: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] Auftrag von Gary Schafer Gesendet: Dienstag, 12. August 2008 02:40 An: Repeater-Builder@yahoogroups.com Betreff: RE: [Repeater-Builder] Height Gain figure -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:Repeater- [EMAIL PROTECTED] On Behalf Of Dave Gomberg Sent: Monday, August 11, 2008 8:37 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Height Gain figure At 16:42 8/10/2008, Dick wrote: An antenna's gain is what it is and it doesn't change with elevation. I am assuming you mean elevation over the surrounding terrain?? This is not true. For example, a dipole has an energy distribution pattern that changes markedly with height above ground. Just try using a NVIS for DX! And verticals become ineffective at very high installation points unless special steps are taken to compensate (by improving the counterpoise). Anyway, that's my opinion and I'm stickin' to it. Once the antenna is several wavelengths above ground (as it will be with any reasonable height at VHF and above) the pattern is going to be the same no matter how much higher it is raised. The ground will have insignificant effects on the radiation pattern. 73 Gary K4FMX
[Repeater-Builder] ??????
So where's the technical content in this - Thank You Scott N3XCC!!! I tried my best to figure what the topic had to do with repeater design and construction. I am so GLAD this thread is now over! Learn something Guys-n-Gals here on the Repeater-Builder Yahoo group. The list in my understanding was created to discuss and chat about repeaters from a technical standpoint. Since 1979 when I designed and built my first Amateur Radio repeater system [on 2-meters]. I was a so called newbie back then. It took several years [20+] and all manner of projects to better educate myself on the where-with-all in repeater construction, not to mention the headaches with desense, calibration and keeping the PA stages as cool as possible! So again folks PLEASE try and keep this list as civilized and informative as possible. After all, we ALL are here to learn and share informationyes? 73 Doug Fitts W7FDF Vail, Arizona U.S.A. Yahoo! Groups Links
Re: [Repeater-Builder] Re: Registered Sex Offenders
At 14:07 8/11/2008, MCH wrote: Can someone of some race (pick any - it doesn't matter which) come up and demand that you let them use your car? I don't see how that could hold up in any court. It's exactly the same thing - forced use of your property. To this I would say no, but To bring this back to repeaters, if you say anyone who wishes can use my repeater (or car) except blacks, my guess is you are in for some very serious and expensive trouble. Remember no one has a RIGHT to a job in your business, but you cannot deny them the job on the grounds of race. Same for renting your apartment, or even spare room. If you offer to almost everyone, you must offer to all (except you may exclude those of a non- protected class). You can say no attorneys can use my repeater, but you would be taking a great risk saying no Catholics can. -- Dave Gomberg, San Francisco NE5EE gomberg1 at wcf dot com All addresses, phones, etc. at http://www.wcf.com/ham/info.html -
Re: [Repeater-Builder] Scanner as repeater receiver?
Most scanners have an extremely broad front-end and as such would be extremely sensitive to de-sense. Hook it up and let it receive a signal and then key a transmitter next to it and see what happens. Gary - K7NEY - Original Message - From: jstechnicalservice To: Repeater-Builder@yahoogroups.com Sent: Monday, August 11, 2008 2:09 PM Subject: [Repeater-Builder] Scanner as repeater receiver? Has anyone used a good quality scanner as a receiver for a repeater and if so, how well did it work? I'm contemplating a Radio Shack PRO-2055 as it seems to have good receive capability and picks up signal better than some of our mobile radios. Jeff Skaggs Concord-Greene FD
RE: [Repeater-Builder] Re: UHF MICOR Unified Chassis
Yes... The station is a Community Repeater - not the conventional MICOR repeater that most are familiar with. In other words, it uses a different backplane and different card configuration than a regular repeater. The primary PL card is called a Four User Control Module and can have up to four Vibrasponder reeds in it (as does mine). The Master Control card does the PL encoding for transmit. If you have the MICOR Community Repeater manual supplement, please check through it and you'll see what I am referring to. The problem seems to be with the Master Control module not sending the tone out on Pin 2. Mark - N9WYS -Original Message- From: Repeater-Builder@yahoogroups.com On Behalf Of godofrepeaters Are you sure you have the encode board plugged in with a reed plugged in? --- In Repeater-Builder@yahoogroups.com, n9wys [EMAIL PROTECTED] wrote: More information about this project. I have the station working - receiving, decoding proper PL tone, repeating, transmitting audio, etc. The only thing it is NOT doing is encoding tone for transmit. (A reminder - this is a Community Repeater MICOR chassis, NOT the standard repeater chassis.) Anyway - from what I can tell, the Master Control module is NOT sending tone out to the modulator. The problem I have is this: the manual supplement I have shows a different Master Control module that what I have. My modules are not IC-based, the ones on the manual are. Therefore, I believe the schematic and operation for the module I have is completely different than that in the manual. Does anyone have an earlier issue of the Community Repeater manual - 68P81025E55 (probably revision A, since mine is a B)? *ALL* I think I need are the pages pertaining to the Master Control Module - part #TLN5803A. (Other part numbers may be: TLN8780A or TLN1684A - these are numbers stamped on the flange of the card - the first number above was printed right on the circuit board.) The module referenced in my manual is TRN6165A. For those with a manual - I am seeing tone at Pin 7 (Tone PL Out) but not at Pin 2 (Tone or Binary PL to Modulator) on the Master Control module. I tried merely jumpering Pin 7 to Pin 2 - doesn't work. Because the schematic and board layout is completely different, I have no reference to be able to chase signal through the circuit. I'm also wondering if a required jumper is missing or a jumper is improperly installed on my Master Control card. Thanks! Mark - N9WYS Yahoo! Groups Links No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.138 / Virus Database: 270.6.1/1607 - Release Date: 8/12/2008 7:19 AM
[Repeater-Builder] Re: Micor Power Supply
wb6mmv do you still need assistance., I can help, I think ?? Jerry VE3 EXT
RE: [Repeater-Builder] Scanner as repeater receiver?
I would not use them. The front end on a scanner receiver is as wide as a double barn door and all kinds of junk comes through. Fred W5VAY _ From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of jstechnicalservice Sent: Monday, August 11, 2008 3:10 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Scanner as repeater receiver? Has anyone used a good quality scanner as a receiver for a repeater and if so, how well did it work? I'm contemplating a Radio Shack PRO-2055 as it seems to have good receive capability and picks up signal better than some of our mobile radios. Jeff Skaggs Concord-Greene FD
Re: [Repeater-Builder] db products 4060
I have a DB-4062, which is the 6 cavity version of the 4060. It was old when placed in service in 1997 but worked OK. Over the years it just slowly deteriorated until it became essentially unusable. Finally I took the thing apart to investigate, and was able to restore it to excellent function. Rather than typing up a lot of details, let me refer you to something I wrote about this a while back. http://repeater.n1bug.com/duplexerrefurb.html 73, Paul N1BUG Aaron Sloan wrote: Hello gang, I am wondering what the opinion is of the decibel products db4060 duplexers for 2m service. We have a set that are nearing 30yrs old and looking for a replacement. The current model never really preformed as well as the specs. Is this an experience shared by anyone else? Thanks, Aaron ka0zoz
Re: [Repeater-Builder] Scanner as repeater receiver?
No such thing as a good quality scanner receiver when compared to a commercial quality setup. A scanner is a receiver of compromised design. Not something that would ever be suitable for a base or repeater setup. You need to have your current setup evaluated by a 2 way professional. (I wish they would bring back the days of the licensed radio technician for land mobile) Chris N9LLO P1-18-50354 In a message dated 8/12/2008 5:08:09 P.M. Eastern Standard Time, [EMAIL PROTECTED] writes: I would not use them. The front end on a scanner receiver is as wide as a double barn door and all kinds of junk comes through. Fred W5VAY From: ST1Repeate ST1Re [mailto: [mailto:ST1 [mailto ] On Behalf Of jstechnicalservice Sent: Monday, August 11, 2008 3:10 PM To: ST1Repeate ST1Re Subject: [Repeater-Builder] Scanner as repeater receiver? Has anyone used a good quality scanner as a receiver for a repeater and if so, how well did it work? I'm contemplating a Radio Shack PRO-2055 as it seems to have good receive capability and picks up signal better than some of our mobile radios. Jeff Skaggs Concord-Greene FD **Looking for a car that's sporty, fun and fits in your budget? Read reviews on AOL Autos. (http://autos.aol.com/cars-BMW-128-2008/expert-review?ncid=aolaut000517 )
Re: [Repeater-Builder] db products 4060
At 15:18 8/12/2008, Paul N1BUG wrote: Rather than typing up a lot of details, let me refer you to something I wrote about this a while back. http://repeater.n1bug.com/duplexerrefurb.html 73, Paul N1BUG Great write up, Paul, can you say something about how many hours you put in on it??? -- Dave Gomberg, San Francisco NE5EE gomberg1 at wcf dot com All addresses, phones, etc. at http://www.wcf.com/ham/info.html -
Re: [Repeater-Builder] Scanner as repeater receiver?
jstechnicalservice wrote: Has anyone used a good quality scanner as a receiver for a repeater and if so, how well did it work? I'm contemplating a Radio Shack PRO-2055 as it seems to have good receive capability and picks up signal better than some of our mobile radios. Jeff Skaggs Concord-Greene FD This is kinda like asking if someone's ever put the 3 cylinder engine from a Geo Metro into a 70's era Chevy Nova. Yeah, there's always someone who's done it, but it ate their time and their wallet and performed poorly when they got done. Too many better (even inexpensive) options available that were designed for the job to mess with it. Nate WY0X
RE: [Repeater-Builder] The new RLC Digital Repeater contoller
Yes and there's another Yahoo group devoted to it. Look there for details. Seems Link Comm is still getting the bugs out. -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of godofrepeaters Sent: Monday, August 11, 2008 1:09 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] The new RLC Digital Repeater contoller Anyone have any experience with the new Link Communications repeater controller? (RLC-DSP) Yahoo! Groups Links
[Repeater-Builder] Re: UHF MICOR Unified Chassis
A community repeater has NO PL Encoder.. The PL from the receiver is decoded and the PL tone is low pass filtered and passed to the transmitter PL Encode input by the Master Decoder card in the station. So, if you key the station locally there is NO PL Encode. Also, there is NO PL tone on the tail either. n9wys wrote: Yes... The station is a Community Repeater - not the conventional MICOR repeater that most are familiar with. In other words, it uses a different backplane
Re: [Repeater-Builder] db products 4060
Dave Gomberg wrote: http://repeater.n1bug.com/duplexerrefurb.html Great write up, Paul, can you say something about how many hours you put in on it??? Uh, sure too many! Heh. Seriously, I didn't really keep track but must have been around 15 to 20 hours. Getting some of the parts clean enough to suit me was agonizingly slow. 73, Paul
RE: [Repeater-Builder] Re: UHF MICOR Unified Chassis
Not in those words (PL encoder) no... and I understand that. I am keying the repeater with an external source (AKA: HT) that is encoding PL. The Master Control module is NOT passing PL to the modulator on Pin 2. THIS is my problem. I need a schematic for the Master Control module that I have in my possession so I can troubleshoot further. Mark - N9WYS -Original Message- From: Repeater-Builder@yahoogroups.com On Behalf Of sgreact47 A community repeater has NO PL Encoder.. The PL from the receiver is decoded and the PL tone is low pass filtered and passed to the transmitter PL Encode input by the Master Decoder card in the station. So, if you key the station locally there is NO PL Encode. Also, there is NO PL tone on the tail either. n9wys wrote: Yes... The station is a Community Repeater - not the conventional MICOR repeater that most are familiar with. In other words, it uses a different backplane
RE: [Repeater-Builder] Re: UHF MICOR Unified Chassis
Mark, What is the number stamped in black ink directly on the PCB of the master control module? I know you recently received the community repeater manual, and that manual doesn't contain the information on that module? Odd... 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of n9wys Sent: Tuesday, August 12, 2008 6:36 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Re: UHF MICOR Unified Chassis Not in those words (PL encoder) no... and I understand that. I am keying the repeater with an external source (AKA: HT) that is encoding PL. The Master Control module is NOT passing PL to the modulator on Pin 2. THIS is my problem. I need a schematic for the Master Control module that I have in my possession so I can troubleshoot further. Mark - N9WYS -Original Message- From: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com On Behalf Of sgreact47 A community repeater has NO PL Encoder.. The PL from the receiver is decoded and the PL tone is low pass filtered and passed to the transmitter PL Encode input by the Master Decoder card in the station. So, if you key the station locally there is NO PL Encode. Also, there is NO PL tone on the tail either. n9wys wrote: Yes... The station is a Community Repeater - not the conventional MICOR repeater that most are familiar with. In other words, it uses a different backplane
Re: [Repeater-Builder] ALL READ!!!!!
Skip: Have a nice vacation. Your comment below was totally un-provoked and un-called for. This list is definitely showing signs of needing a break. Since this list is such a wealth of knowledge and a wonderful resource to so many people, I would hate to shut it down because of some who can't let things die when asked to do so; but I am in definite fear of having to shut this list down for some period of time. Some of you are really pushing my buttons. Starting now: there will be no warnings, and no stop-thread pleas. I am simply going to ban people. I am also hereby directing all of the other moderators to do likewise. Any more takers for a posting vacation?? Scott Scott Zimmerman Amateur Radio Call N3XCC 474 Barnett Rd Boswell, PA 15531 - Original Message - From: Skip Frolik [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, August 12, 2008 12:38 PM Subject: [Repeater-Builder] ?? So where's the technical content in this - Thank You Scott N3XCC!!! I tried my best to figure what the topic had to do with repeater design and construction. I am so GLAD this thread is now over! Snip.
[Repeater-Builder] Re: ACC RC-85 / Kenwood TS-440S Remote Base Questions
I did this on a similar issue and it worked well! --- In Repeater-Builder@yahoogroups.com, WA6TFD [EMAIL PROTECTED] wrote: Jim is correct by adding the pot to the input of the TS-440 jack. But, just don't forget to re-adjust the input receiver pot on the RC- 85 back top the correct level for repeat and decoding as set forth in the manual. I do believe that one of the last revisions of the RC-85 firmware either broke or fixed the 'Bump Down' function. I can't remember which one because I had reported that problem to ACC in the ShackMaster product which used the same code. Keith --- In Repeater-Builder@yahoogroups.com, Jim Brown w5zit@ wrote: Since you don't have control of the audio level anywhere else,� I would suggest using a potentiometer as the attenuator.� Hook the output of your remote base audio to both ends of the pot, and take the input to the TS-440 RCA jack from the center lead of the pot.� Hook the ground end of the pot to the ground from the controller and to the ground on the RCA jack.� A 10 K pot should give you all the control you need to set the levels.� Typical convention is to let the clockwise rotation of the pot increase the level, so use the correct terminals on the pot to give this action. 73 - Jim� W5ZIT --- On Mon, 8/11/08, larryjspammenot@ larryj@ wrote: From: larryjspammenot@ larryj@ Subject: [Repeater-Builder] ACC RC-85 / Kenwood TS-440S Remote Base Questions To: Repeater-Builder@yahoogroups.com, [EMAIL PROTECTED] Date: Monday, August 11, 2008, 11:17 AM I have a UHF Repeater using an ACC RC-85 repeater controller, which also controls a Kenwood TS-440 HF Transceiver as the Remote Base radio. All the HF Radio control commands seem to work fine, except the Bump Down 500 Hz command. The command is [Remote Base Prefix] 7 - it just has no reponse. But the Bump UP 500 Hz and the other Bump Up/Down - 20 Hz and 100 Hz step commands work just fine. It's not a problem decoding the 7 - the Touchtone Pad Test reads back all digits correctly. The touchtone decoder in the RC- 85 seems to work extremely well and decodes noisy signals without falsing. I can be mobile, using just a handheld radio that's choppy into the repeater, and dial around on the HF radio with hardly ever having a missed digit. The other minor problem I'm having is that the transmit audio for the TS-440S is so hot coming from the RC-85 that it's unusable. The output of the RC-85 transmit audio is fixed level, and is controlled by the inputs from the receiver (in this case, the UHF repeater receiver.) If I turn down the level of the receive audio to the controller so that the TS-440 transmit audio is at the proper level, then the controller doesn't have enough audio output to drive the main UHF transmitter to more than about 2 kHz deviation. I'm feeding the transmit audio into the TS-440's AFSK IN rear-panel jack, as suggested in the RC-85 manual. Using this input, the TS-440 front- panel mic gain control has no effect on the transmit audio level from the AFSK IN jack. Looking at the RC-85 manual and in an old issue of ACC Notes which describes RC-850 and RC-85 transmit audio level setting procedures, it suggests padding down the output of the transmit audio using an attenuator or resistive voltage divider. Anyone tried this and have any starting values? Lots of fun! Larry K7LJ __.__
[Repeater-Builder] Re: Scanner as repeater receiver?
A sensitive receiver is usually a terrible repeater receiver. Scanners do not have good filtering and adjacent channel rejection. Don't do it! --- In Repeater-Builder@yahoogroups.com, jstechnicalservice [EMAIL PROTECTED] wrote: Has anyone used a good quality scanner as a receiver for a repeater and if so, how well did it work? I'm contemplating a Radio Shack PRO-2055 as it seems to have good receive capability and picks up signal better than some of our mobile radios. Jeff Skaggs Concord-Greene FD
[Repeater-Builder] Re: Scanner as repeater receiver?
All it would be is made over crap. He should go get a cheap Micor or Master II for a receiver. --- In Repeater-Builder@yahoogroups.com, Nate Duehr [EMAIL PROTECTED] wrote: jstechnicalservice wrote: Has anyone used a good quality scanner as a receiver for a repeater and if so, how well did it work? I'm contemplating a Radio Shack PRO-2055 as it seems to have good receive capability and picks up signal better than some of our mobile radios. Jeff Skaggs Concord-Greene FD This is kinda like asking if someone's ever put the 3 cylinder engine from a Geo Metro into a 70's era Chevy Nova. Yeah, there's always someone who's done it, but it ate their time and their wallet and performed poorly when they got done. Too many better (even inexpensive) options available that were designed for the job to mess with it. Nate WY0X
[Repeater-Builder] The List - Please read....
This list is on hold for posting by the membership for a while. Moderators can post, members cannot. Everyone is asked to read these few items: http://www.repeater-builder.com/rbtip/repeater-builder.html http://www.trumpetpower.com/Rants/Netiquette http://www.reedmedia.net/misc/mail/using-mailing-list.html Kevin Custer List Owner (this one almost 10 years)
