Re: [Repeater-Builder] Re: GE Lookout Repeater related info needed.
In the second picture in the folder there is a 3 position switch to the left of the volume control. The center position is marked RPTR and another position seems to be marked MON. The remaining position marking cannot be read. What is the marking? The term Lookout Repeater is unusual; I recall seeing a Motorola radio manual marked as being a lookout repeater. The unit was, IIRC, comprised of modules from the Business Dispatcher. I believe that the functionality of the unit is unique to a specific type of operation. The use of low power modules suggests that these units were part of a larger system and possibly were used as some form of range extenders. Now the bad news; the PE series modules used in this radio are not the easiest to work on. It has been a long time since I dealt with any of the PE/PY radios but IIRC the frequency sensitive componets were not always on the circuit board. Moving one of these units from 166 to 146 will involve a large amount of work. As always if one wishes to start on such an adventure, manuals are a must along with a knowledge of if and how the unit functions on the existing frequencies. Milt N3LTQ - Original Message - From: lsasmazel lsasma...@comcast.net To: Repeater-Builder@yahoogroups.com Sent: Saturday, October 17, 2009 8:19 PM Subject: [Repeater-Builder] Re: GE Lookout Repeater related info needed. This unit come from Alaska regarding to seller it sat in the boxes and wait to get deployed. But it never happened. Frequencies are ; TX : 166.850 Mhz, , 166.850 Mhz RX: 164.425 Mhz, 164.425 Mhz I just figured out that this is one frequency unit :) Levent - WW2L --- In Repeater-Builder@yahoogroups.com, Eric Lemmon wb6...@... wrote: Levent, The pictures do lend credence to the special part theory. Please advise what the two receive and two transmit frequencies are. Do you have any idea what company or agency owned this device? It's a long shot, but it is always (well, sometimes) possible to track down the previous owner, locate the radio shop that maintained it, and possibly identify the documents you need- if they won't just hand them over. Knowing the frequencies used is a giant first step in that process. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of lsasmazel Sent: Saturday, October 17, 2009 4:49 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: GE Lookout Repeater related info needed. Sorry I forget the mention I put the picture under GE Lookup Repeater folder. There ais one more Number I find it is on the back of the unit and it is PL19D424600G4 this is on the back of the box. 73 Levent - WW2L --- In Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com , Eric Lemmon wb6fly@ wrote: Levent, The component number 19C320943G1 is a SPCL COMP BD. I think it's time to take some pictures of this device, since it seems to be an oddball unit that was not a regular production item. Is there no label or tag on the outside of the box, which might give this thing a name or a model number? Without a clear identification of the whole unit, all we can determine is that it is a special part that incorporates some PE handheld modules. Regarding power requirements, a typical 5-watt radio draws about 2 amperes during transmit. Add 1 amp or so for running the controller, and you can assume that a 5-amp supply will suffice. But, be careful to determine what voltage is required to run this thing, before hooking up your favorite Astron power supply. The unit may require 7.5 or 10 VDC, and you don't know that without more documentation. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com ] On Behalf Of lsasmazel Sent: Saturday, October 17, 2009 4:06 PM To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Subject: [Repeater-Builder] Re: GE Lookout Repeater related info needed. Eric, Thanks for all info. Very interesting data you have I was trying to understand with visual inspection. Even box has 4 position for the frequency selection it has only 2 xtal unit on the receiver and 2 xtal unit on the TX board. I was thinking that it was switching xtals between TX and RX board. Can you tell me what are the power supply requirements for these units. Also at the back there are 3 RF connectors (SO 239) one is marked as RX antenna other is just ANT and the third one which is on the TX board says RX RF IN ? I don't have any clue on that. I was thinking to replace OSC xtals with ham band ones and also modify or change the RX filter section. May be I am too much
Re: [Repeater-Builder] Emergency Medical Systems Duplex / Repeater UHF Mobile Radio Model Q2203A
Joe, I assume that you have what looks like a standard Micor mobile that grew a big extension on the back end to house the duplexer and some other bits. Some of these units also added an external housing for a secondary receiver and control electronics on what were termed the Med sub channels (4 freqs in the 458 range). Your basic radio is a full duplex 12 channel, 450-470 range, RX above TX, with TX power of 50 watts reduced to 30 watts out of the duplexer. Some of the parts of the system however are missing as part of the control/repeat system was in the control head. The duplexer is a 5 MHz split, notch type and may be asymmetrical (more notches on one side than the other), that was tuned to cover the 463.000 to 463.175 and 468.000 to 468.175 range. The basic radio was still built around the mobile UHF Micor concept of a single channel element providing both the RX and TX signals. Conversion possibilities exist for the basic radio modules. Milt N3LTQ - Original Message - From: Joe k1ike_m...@snet.net To: Repeater-Builder@yahoogroups.com Sent: Saturday, October 17, 2009 6:49 PM Subject: [Repeater-Builder] Emergency Medical Systems Duplex / Repeater UHF Mobile Radio Model Q2203A Sorry about the first message with the wrong Subject line. I was cut/and/pasting and hit the send key. Here is the corrected message... I just found an orphan EMS model Q2033A mobile at my door. No cables or head, just the transceiver and receiver boxes. These were used on the local ambulance and were full duplex, plus repeater function. Is there any use for these on the ham bands? The duplexer looks to be too wide banded for ham use, I remember playing with one of these duplexer's years ago. Looks like I just have Micor spare parts? 73, Joe, K1ike Yahoo! Groups Links
Re: [Repeater-Builder] Re: GE Lookout Repeater related info needed.
I also had seen this rascal on Ebay and could see by that listing it was in fact on the GOV split (160 to 172 ) and was MASTR PE portables in a box. Now being a GE tech from way back, I would not recommend this type of equipment to the the rookie's as they are very delicate to disassemble. However once together they are quite reliable. I have to ask, if you do not know what it is, why did you buy it? But I do wish you luck, Your best bet is to see if you can see what COMB numbers are on the modules, as if it is high split, you will not get it down to 2 m. Everything is quite small and I do remember that even the most experienced really did not like working on the PE's (I was lucky, I mostly did MASTR II's, and the MARC V stuff of that day.) But I did do some light field work on them while visiting Police and Forestry service while on field calls. These radios are very solid. (But not when you take them apart they are quite the beast) Good luck! -Richard From: Milt men...@pa.net To: Repeater-Builder@yahoogroups.com Sent: Sun, October 18, 2009 9:38:14 AM Subject: Re: [Repeater-Builder] Re: GE Lookout Repeater related info needed. In the second picture in the folder there is a 3 position switch to the left of the volume control. The center position is marked RPTR and another position seems to be marked MON. The remaining position marking cannot be read. What is the marking? The term Lookout Repeater is unusual; I recall seeing a Motorola radio manual marked as being a lookout repeater. The unit was, IIRC, comprised of modules from the Business Dispatcher. I believe that the functionality of the unit is unique to a specific type of operation. The use of low power modules suggests that these units were part of a larger system and possibly were used as some form of range extenders. Now the bad news; the PE series modules used in this radio are not the easiest to work on. It has been a long time since I dealt with any of the PE/PY radios but IIRC the frequency sensitive componets were not always on the circuit board. Moving one of these units from 166 to 146 will involve a large amount of work. As always if one wishes to start on such an adventure, manuals are a must along with a knowledge of if and how the unit functions on the existing frequencies. Milt N3LTQ - Original Message - From: lsasmazel lsasma...@comcast. net To: Repeater-Builder@ yahoogroups. com Sent: Saturday, October 17, 2009 8:19 PM Subject: [Repeater-Builder] Re: GE Lookout Repeater related info needed. This unit come from Alaska regarding to seller it sat in the boxes and wait to get deployed. But it never happened. Frequencies are ; TX : 166.850 Mhz, , 166.850 Mhz RX: 164.425 Mhz, 164.425 Mhz I just figured out that this is one frequency unit :) Levent - WW2L --- In Repeater-Builder@ yahoogroups. com, Eric Lemmon wb6...@... wrote: Levent, The pictures do lend credence to the special part theory. Please advise what the two receive and two transmit frequencies are. Do you have any idea what company or agency owned this device? It's a long shot, but it is always (well, sometimes) possible to track down the previous owner, locate the radio shop that maintained it, and possibly identify the documents you need- if they won't just hand them over. Knowing the frequencies used is a giant first step in that process. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@ yahoogroups. com [mailto:Repeater-Builder@ yahoogroups. com] On Behalf Of lsasmazel Sent: Saturday, October 17, 2009 4:49 PM To: Repeater-Builder@ yahoogroups. com Subject: [Repeater-Builder] Re: GE Lookout Repeater related info needed. Sorry I forget the mention I put the picture under GE Lookup Repeater folder. There ais one more Number I find it is on the back of the unit and it is PL19D424600G4 this is on the back of the box. 73 Levent - WW2L --- In Repeater-Builder@ yahoogroups. com mailto:Repeater- Builder%40yahoog roups.com , Eric Lemmon wb6fly@ wrote: Levent, The component number 19C320943G1 is a SPCL COMP BD. I think it's time to take some pictures of this device, since it seems to be an oddball unit that was not a regular production item. Is there no label or tag on the outside of the box, which might give this thing a name or a model number? Without a clear identification of the whole unit, all we can determine is that it is a special part that incorporates some PE handheld modules. Regarding power requirements, a typical 5-watt radio draws about 2 amperes during transmit. Add 1 amp or so for running the controller, and you can assume that a 5-amp supply will suffice. But, be careful to determine what voltage is required to run this thing, before hooking up your favorite Astron power supply. The unit may require 7.5 or 10 VDC, and you don't know that without more
[Repeater-Builder] Wavetek gone south
I've been using Caig's products for about 25 ears. They work like magic on electronic connectors of all sorts. I've rescued all sorts of electronics that had been written off as hopeless. Yes, even new gold contacts have problems. Caig stuff cleans, lubes maintains. My favorites are Deoxit D5 and Deoxit Gold G5 (for gold). I usually take newly acquire gear apart, connector-wise treat all contacts. No, I don't own any of their stock, just a satisfied customer. BTW, they had a table at Dayton, I was able to chat with their tech rep stock at up good prices. www.caig.com --John WB0EQ
Re: [Repeater-Builder] Wavetek gone south
Thanks John for that Info. Will be headed into Town tomorrow get what you recomend. Wesley - Original Message - From: John Sehring To: Repeater-Builder@yahoogroups.com Sent: Sunday, October 18, 2009 11:53 AM Subject: [Repeater-Builder] Wavetek gone south I've been using Caig's products for about 25 ears. They work like magic on electronic connectors of all sorts. I've rescued all sorts of electronics that had been written off as hopeless. Yes, even new gold contacts have problems. Caig stuff cleans, lubes maintains. My favorites are Deoxit D5 and Deoxit Gold G5 (for gold). I usually take newly acquire gear apart, connector-wise treat all contacts. No, I don't own any of their stock, just a satisfied customer. BTW, they had a table at Dayton, I was able to chat with their tech rep stock at up good prices. www.caig.com --John WB0EQ
[Repeater-Builder] kendecom repeaters on 220
Hey guys, I'm working with a group and have given them several suggestions for repeaters on 220 including hipro, ge, moto, etc. One thing i don't know much about is the kendecom, and thought i would ask since they want to know. As far as relyability, good, bad? I know their lineup basicly hasn't changed in years. The people i know that have them have been reasonably happy, but figured i would get some input. 220 is a tough band as we all know. Any thoughts guys? Thanks, Jed
Re: [Repeater-Builder] kendecom repeaters on 220
Jed Barton wrote: Hey guys, I'm working with a group and have given them several suggestions for repeaters on 220 including hipro, ge, moto, etc. One thing i don't know much about is the kendecom, and thought i would ask since they want to know. As far as relyability, good, bad? Kendecom (MCS) Reliability - pretty good. Sensitivity - IMHO deaf. Squelch - sucks. Difficulty to interface to a controller - more difficult than most. Nice pretty blue box! A MICOR or GE that has been properly converted will blow it away, and for a lot less money. Kevin
RE: [Repeater-Builder] kendecom repeaters on 220
Jed, The Northern Virginia FM Association ( check them out on the web) has a Kendecom 220 repeater that has been on the air up there for over 25 yrs. The licensee is Steve Floyd, W4YHD. If you have any questions about it you could email ( copied on this email ) and I'm sure he would be very happy to talk to you about his machine in Fairfax, Va on 224.100. '73, Mike From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Kevin Custer Sent: Sunday, October 18, 2009 1:52 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] kendecom repeaters on 220 Jed Barton wrote: Hey guys, I'm working with a group and have given them several suggestions for repeaters on 220 including hipro, ge, moto, etc. One thing i don't know much about is the kendecom, and thought i would ask since they want to know. As far as relyability, good, bad? Kendecom (MCS) Reliability - pretty good. Sensitivity - IMHO deaf. Squelch - sucks. Difficulty to interface to a controller - more difficult than most. Nice pretty blue box! A MICOR or GE that has been properly converted will blow it away, and for a lot less money. Kevin __ Information from ESET NOD32 Antivirus, version of virus signature database 4520 (20091018) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com
[Repeater-Builder] Motorola Suitcase Repeater data need
Hi everyone. I have a Motorola Suitcase P44SYS1180BT. Looks like it was modified to -3180 (PL), clean mod. Can anyone confirm that this is based on a pair of MX320-S radios? I haven't had time to do more than a checkout and visual. No duplexer, it was originally setup on an impossible split for mobile duplexers (1.5 MHz). Battery never installed. Second thing I need to confirm. I have heard two versions of battery info. One is 8 Volt, one is 12 Volt. 12 makes more sense to me, but don't want to experiment. Lastly, I have the 450 MX pdf manual from the site here, but need original manual or a scan. I'm not even going to call /\/\ about it, I'm sure it isn't available. According to a posting on Batboard the manuals are: # 68-81021C90-A # 68-81021C95-O Next I'll need to reprogram, that's for another day. Its in ham band and works fine for now... GeorgeC W2DB Austin, TX
[Repeater-Builder] Standard RPK-70U manual scan updated
The commonly available manual has some real nasty scans of schematics, and those are missing some areas. I have the manual, and editied the original adding full page scan, etc. Not much storage space here, so if you need a copy its on my web server : http://dyb.com/STANDARD/ GeorgeC W2DB
[Repeater-Builder] need help IDing duplexer
I have a Phelps-Dodge mobile type duplexer that must have been an OEM job, Model is 166C7487P3, was originally on 406-420. It is four cavities, RCA connectors, one female on the second cavity, and at each end a teflon cable to a male connector. Assuming the one on teh device (female) is antenna it just doesn't tune right. It looks like high pass side has about 20 db notch, other side at 60 db. GeorgeC W2DB
Re: [Repeater-Builder] kendecom repeaters on 220
At 10/18/2009 10:28 AM, you wrote: Hey guys, I'm working with a group and have given them several suggestions for repeaters on 220 including hipro, ge, moto, etc. One thing i don't know much about is the kendecom, and thought i would ask since they want to know. As far as relyability, good, bad? In a word, bad. The RXs are salvageable, do have some strong points. The internal squelch is NG IMO needs to be replaced, preferably with a Micor squelch. The TXs internal controller are junk. Best bet for 220 is a converted GE or Micor, or find a Midland 13-509 to split apart. Bob NO6B
RE: [Repeater-Builder] Emergency Medical Systems Duplex / Repeater UHF Mobile Radio Model Q2203A
Joe, If you want to play with your EMS repeater, you'll need two Motorola manuals: 6881015E70, which covers the basic UHF Micor mobile radio, and 6881029E45, which is the EMS repeater supplement. Both of these manuals are still available from Motorola Parts, for about $92 and $30, respectively. The duplexer is an oddball design using four helical resonators in the TX side and three helical resonators in the RX side. Although it is designed for a 5 MHz split, it probably will not tune down into the 70 cm band. The specs for the QFE1024A duplexer state that both sides should attenuate the opposite frequency by at least 65 dB, and should have an insertion loss no greater than 1.5 dB. The repeater is designed to transmit with 30 watts of power on the eight EMS channels: 468.000, 468.025, 468.050, 468.075. 468.100, 468.125, 468.150, and 468.175 MHz. The eight receive channels are exactly 5 MHz lower. An optional auxiliary receiver allows reception of 458.025, 458.075, 458.125, and 458.175 MHz. (Those frequencies don't look right, but that's what is printed in the EMS manual.) The are a number of extra cards for processing medical telemetry and controlling the repeater functions. 73, Eric Lemmon WB6FLY - Original Message - From: Joe k1ike_m...@snet.net mailto:k1ike_mail%40snet.net To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Sent: Saturday, October 17, 2009 6:49 PM Subject: [Repeater-Builder] Emergency Medical Systems Duplex / Repeater UHF Mobile Radio Model Q2203A snip I just found an orphan EMS model Q2033A mobile at my door. No cables or head, just the transceiver and receiver boxes. These were used on the local ambulance and were full duplex, plus repeater function. Is there any use for these on the ham bands? The duplexer looks to be too wide banded for ham use. I remember playing with one of these duplexers years ago. Looks like I just have Micor spare parts? 73, Joe, K1ike
RE: [Repeater-Builder] Motorola Suitcase Repeater data need
George, I have good news and bad news. The good news is that Motorola Parts still has the 6881021C95 manual available for purchase. The bad news is that it costs about $215. A wealth of information on the MX-300 series of radios is available here: www.repeater-builder.com/motorola/mx-series/index.html All MX-300 series radios operate on a 7.5 volt battery. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of George C Sent: Sunday, October 18, 2009 11:17 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Motorola Suitcase Repeater data need Hi everyone. I have a Motorola Suitcase P44SYS1180BT. Looks like it was modified to -3180 (PL), clean mod. Can anyone confirm that this is based on a pair of MX320-S radios? I haven't had time to do more than a checkout and visual. No duplexer, it was originally setup on an impossible split for mobile duplexers (1.5 MHz). Battery never installed. Second thing I need to confirm. I have heard two versions of battery info. One is 8 Volt, one is 12 Volt. 12 makes more sense to me, but don't want to experiment. Lastly, I have the 450 MX pdf manual from the site here, but need original manual or a scan. I'm not even going to call /\/\ about it, I'm sure it isn't available. According to a posting on Batboard the manuals are: # 68-81021C90-A # 68-81021C95-O Next I'll need to reprogram, that's for another day. Its in ham band and works fine for now... GeorgeC W2DB Austin, TX
Re: [Repeater-Builder] kendecom repeaters on 220
First of all---Kendecom is an obsolete name. The Kendecom line has been updated/improved and has been relabeled as ACS which stands for Advanced Communication Systems which now builds the units. The RF innards are basically the same as the last of Kendecom though improved in some ways-ACS uses a CAT-1000 controller rather than the Kendecom controller and the whole consist, with AC power supply, is packaged in a nice, instrumented, easy to use rack mountable box. I have five of their almost current production repeaters in my present responsibility-three 2 meter units and one each on 220 and 440. They were all purchased with provision for use with RLC-3 controllers--(an added connector arrangement on the rear panel to allow the use of either the internal CAT or a RLC-3 externally). I did have a problem with all at first---ACS had changed a part in their receivers due previous part unavailability, but this was all worked out to both of our advantages and ACS was a pleasure to work with. Anyway, all of these repeaters have since been absolutely reliable, sound very good, have good sensitivity and excellent selectivity. Three of them are on a heavily populated hospital roof---absolutely no interference problems. The only thing that I don't like about the ACS repeater is that they use a 28 volt fed output amplifier which makes 12 volt battery backup a problem unless lower output power when on battery is acceptable. Please feel free to contact me directly if you have questions, Scott, N6NXI - Original Message - From: Jed Barton To: repeater-builder@yahoogroups.com Sent: Sunday, October 18, 2009 10:28 AM Subject: [Repeater-Builder] kendecom repeaters on 220 Hey guys, I'm working with a group and have given them several suggestions for repeaters on 220 including hipro, ge, moto, etc. One thing i don't know much about is the kendecom, and thought i would ask since they want to know. As far as relyability, good, bad? I know their lineup basicly hasn't changed in years. The people i know that have them have been reasonably happy, but figured i would get some input. 220 is a tough band as we all know. Any thoughts guys? Thanks, Jed -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.422 / Virus Database: 270.14.20/2444 - Release Date: 10/18/09 09:04:00
Re: [Repeater-Builder] kendecom repeaters on 220
We had a Mark 4 on 2m, for many years. Transmit audio the best we ever heard. Rec was fine. The Controller was Old school but it did what it said it would. For a Military repeater converted for the commercial marketplace in the 70s I think they did an OK job. You can still get service for them too! Anyone looking to buy a 2m Mark 4 in great condition; to play with or as a back-up or for a portable unit, email me direct. We upgraded to Kenwood TKR. Nice, easy to program but the audio doesn't come close to the Kendicom's. 73, dave wa3gin - Original Message - From: n...@no6b.com To: Repeater-Builder@yahoogroups.com Sent: Sunday, October 18, 2009 2:47 PM Subject: Re: [Repeater-Builder] kendecom repeaters on 220 At 10/18/2009 10:28 AM, you wrote: Hey guys, I'm working with a group and have given them several suggestions for repeaters on 220 including hipro, ge, moto, etc. One thing i don't know much about is the kendecom, and thought i would ask since they want to know. As far as relyability, good, bad? In a word, bad. The RXs are salvageable, do have some strong points. The internal squelch is NG IMO needs to be replaced, preferably with a Micor squelch. The TXs internal controller are junk. Best bet for 220 is a converted GE or Micor, or find a Midland 13-509 to split apart. Bob NO6B
Re: [Repeater-Builder] Wavetek 3000
Ok Andy. Opened up Wavetek. The 3rd module from the right flashes on startup, but goes out right away. Pulled the modules. Used an eraser to clean the contacts then with a cleanerDeoxit on the bottom contacts. after pulling RF module, where I think the problem lies. There were about 4 ICs, in sockets. Pushed down on each one. No telltime clicks(Not Good) Think this module is bad. Would you have one? Wesley - Original Message - From: Andrew Seybold To: Repeater-Builder@yahoogroups.com Sent: Friday, October 16, 2009 2:09 PM Subject: RE: [Repeater-Builder] Wavetek 3000 Open up the Wavetek, turn it on and look to at the LED on, I believe the third module from the right, if it is flashing then the unit is unlocked, a very common problem-made even more problematical since the IC's and components for this board are no longer in production, I have one also, and know three others with the same problem, if anyone knows someone who has come up with a fix please share. Andy W6AMS From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of bazelljr Sent: Friday, October 16, 2009 8:18 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Wavetek 3000 Well, it happens. just turned on my wavetek 3000 Station monitor yesterday found it had gone South. Everything works except does not send or receive RF. no doubt its in the RF module.Yes it has Modules. Anyone have this Problem? Also Where cpould I get it Repaired without Spending a Fortune? Wesley AB8KD
Re: [Repeater-Builder] Wavetek 3000
As I undersstand it wavetek put some kinda anti oxidizing goo on the IC pins. But it had the side effect of disolving the IC pins after quite some time. So the solusion was to replace the ICs or trying to solder the IC to the board to make good contact with the pins. On Sun, Oct 18, 2009 at 1:46 PM, Wesley Bazell wesley...@verizon.netwrote: *Ok Andy. Opened up Wavetek. The 3rd module from the right flashes on startup, but goes out right away. Pulled the modules. Used an eraser to clean the contacts then with a cleanerDeoxit on the bottom contacts. after pulling RF module, where I think the problem lies. There were about 4 ICs, in sockets. Pushed down on each one. No telltime clicks(Not Good) Think this module is bad. Would you have one?* ** *Wesley* - Original Message - *From:* Andrew Seybold aseyb...@andrewseybold.com *To:* Repeater-Builder@yahoogroups.com *Sent:* Friday, October 16, 2009 2:09 PM *Subject:* RE: [Repeater-Builder] Wavetek 3000 Open up the Wavetek, turn it on and look to at the LED on, I believe the third module from the right, if it is flashing then the unit is unlocked, a very common problem—made even more problematical since the IC’s and components for this board are no longer in production, I have one also, and know three others with the same problem, if anyone knows someone who has come up with a fix please share. Andy W6AMS *From:* Repeater-Builder@yahoogroups.com [mailto: repeater-buil...@yahoogroups.com] *On Behalf Of *bazelljr *Sent:* Friday, October 16, 2009 8:18 AM *To:* Repeater-Builder@yahoogroups.com *Subject:* [Repeater-Builder] Wavetek 3000 Well, it happens. just turned on my wavetek 3000 Station monitor yesterday found it had gone South. Everything works except does not send or receive RF. no doubt its in the RF module.Yes it has Modules. Anyone have this Problem? Also Where cpould I get it Repaired without Spending a Fortune? Wesley AB8KD
RE: [Repeater-Builder] Wavetek 3000
Wesley, no I don't in fact my module is sitting at a shop of a friend who has three others just like it, all with the same problems-the biggest issues are below-but also the fact that many of the IC's are no longer made and there are no substitutes for them-which is why I added to your post, hoping someone in this group had a magic solution, I really like the 3000, simple to operate and stays on Freq when it is working-but I guess I might have to try and solder the ICs into the board and see what happens. Andy From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of DCFluX Sent: Sunday, October 18, 2009 2:05 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Wavetek 3000 As I undersstand it wavetek put some kinda anti oxidizing goo on the IC pins. But it had the side effect of disolving the IC pins after quite some time. So the solusion was to replace the ICs or trying to solder the IC to the board to make good contact with the pins. On Sun, Oct 18, 2009 at 1:46 PM, Wesley Bazell wesley...@verizon.net wrote: Ok Andy. Opened up Wavetek. The 3rd module from the right flashes on startup, but goes out right away. Pulled the modules. Used an eraser to clean the contacts then with a cleanerDeoxit on the bottom contacts. after pulling RF module, where I think the problem lies. There were about 4 ICs, in sockets. Pushed down on each one. No telltime clicks(Not Good) Think this module is bad. Would you have one? Wesley - Original Message - From: Andrew Seybold mailto:aseyb...@andrewseybold.com To: Repeater-Builder@yahoogroups.com Sent: Friday, October 16, 2009 2:09 PM Subject: RE: [Repeater-Builder] Wavetek 3000 Open up the Wavetek, turn it on and look to at the LED on, I believe the third module from the right, if it is flashing then the unit is unlocked, a very common problem-made even more problematical since the IC's and components for this board are no longer in production, I have one also, and know three others with the same problem, if anyone knows someone who has come up with a fix please share. Andy W6AMS From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of bazelljr Sent: Friday, October 16, 2009 8:18 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Wavetek 3000 Well, it happens. just turned on my wavetek 3000 Station monitor yesterday found it had gone South. Everything works except does not send or receive RF. no doubt its in the RF module.Yes it has Modules. Anyone have this Problem? Also Where cpould I get it Repaired without Spending a Fortune? Wesley AB8KD
RE: [Repeater-Builder] Maxon sm4450sc
Hi Eric .Two radios here are not working properly and I found in one that the 8meg crystal was 2.4khz off frequency and in the other radio there is no 8 megs at all.so this should explain the radios not working .on a good radio the ctcss was 131.8 and the crystal was very near to the 8.2944mhz .On the service monitor the 131 was stable but the .8 was flicking up and down a little but it never altered from 131hz Thank You, Ian Wells, Kerinvale Comaudio, 361 Camboon Road.Biloela.4715 Ph 0749922449 or 0409159932 or 0749922574 www.kerinvalecomaudio.com.au ---Original Message--- From: Eric Lemmon Date: 18/10/2009 09:16:09 To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Maxon sm4450sc Ian, The CTCSS tones are derived from the timing of ASIC IC107, and are independent of the carrier frequency control circuit. Use your service monitor to sniff around the CPU to see if the clock is running at or very close to 8.2944 MHz. If it is way off, you'll need to replace the X1 crystal since there is no adjustment. Crystal X1 is type HC-184, part number 260-862-6Z. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups com] On Behalf Of kerinvale Sent: Saturday, October 17, 2009 2:36 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Maxon sm4450sc Hi guys .Has anyone come across the ctcss frequency being a little off frequency on a maxon sm4450 I.e. For 123 Hz the radio produces 122.5hz or below is there anyway to make the radio produce the exact programmed Hz Thank You, Ian Wells
Re: [Repeater-Builder] kendecom repeaters on 220
Hey Jed How are you my Friend I have had Kendecomm Repeaters... The 2 meter machine was a good machine. never had Issues with it. The 200 Machine Probably had the Hottest receiver you could find on 220Mhz actually had 2 of these on 220.. Lost them in the House fire in 2007. I am still Running the 440 machine. I think the issue I have with it is that Im sharing an old Dualband antenna through a Diplexer with a 2 meter mahine. and Im only running 10 watts on it. But No Complaints. Its chugging along and still works. Even though it to went through the house fire.. Neal KA2CAF --- On Sun, 10/18/09, Jed Barton j...@jedbarton.com wrote: From: Jed Barton j...@jedbarton.com Subject: [Repeater-Builder] kendecom repeaters on 220 To: repeater-builder@yahoogroups.com Date: Sunday, October 18, 2009, 1:28 PM Hey guys, I'm working with a group and have given them several suggestions for repeaters on 220 including hipro, ge, moto, etc. One thing i don't know much about is the kendecom, and thought i would ask since they want to know. As far as relyability, good, bad? I know their lineup basicly hasn't changed in years. The people i know that have them have been reasonably happy, but figured i would get some input. 220 is a tough band as we all know. Any thoughts guys? Thanks, Jed Yahoo! Groups Links mailto:repeater-builder-fullfeatu...@yahoogroups.com
Re: [Repeater-Builder] Wavetek 3000
- Original Message - From: Andrew Seybold To: Repeater-Builder@yahoogroups.com Sent: Sunday, October 18, 2009 5:28 PM Subject: RE: [Repeater-Builder] Wavetek 3000 Oh well Andy. You win some lose some. Thats Life. I like the 3000 also. Will have to go a different route as at 75 years old, my hands shake when I put them to an Solder station. No problem in my 42 years of Electronic Servicing, but now it is. Thanks for your Help. Wesley Wesley, no I don't in fact my module is sitting at a shop of a friend who has three others just like it, all with the same problems-the biggest issues are below-but also the fact that many of the IC's are no longer made and there are no substitutes for them-which is why I added to your post, hoping someone in this group had a magic solution, I really like the 3000, simple to operate and stays on Freq when it is working-but I guess I might have to try and solder the ICs into the board and see what happens. Andy From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of DCFluX Sent: Sunday, October 18, 2009 2:05 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Wavetek 3000 As I undersstand it wavetek put some kinda anti oxidizing goo on the IC pins. But it had the side effect of disolving the IC pins after quite some time. So the solusion was to replace the ICs or trying to solder the IC to the board to make good contact with the pins. On Sun, Oct 18, 2009 at 1:46 PM, Wesley Bazell wesley...@verizon.net wrote: Ok Andy. Opened up Wavetek. The 3rd module from the right flashes on startup, but goes out right away. Pulled the modules. Used an eraser to clean the contacts then with a cleanerDeoxit on the bottom contacts. after pulling RF module, where I think the problem lies. There were about 4 ICs, in sockets. Pushed down on each one. No telltime clicks(Not Good) Think this module is bad. Would you have one? Wesley - Original Message - From: Andrew Seybold To: Repeater-Builder@yahoogroups.com Sent: Friday, October 16, 2009 2:09 PM Subject: RE: [Repeater-Builder] Wavetek 3000 Open up the Wavetek, turn it on and look to at the LED on, I believe the third module from the right, if it is flashing then the unit is unlocked, a very common problem-made even more problematical since the IC's and components for this board are no longer in production, I have one also, and know three others with the same problem, if anyone knows someone who has come up with a fix please share. Andy W6AMS From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of bazelljr Sent: Friday, October 16, 2009 8:18 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Wavetek 3000 Well, it happens. just turned on my wavetek 3000 Station monitor yesterday found it had gone South. Everything works except does not send or receive RF. no doubt its in the RF module.Yes it has Modules. Anyone have this Problem? Also Where cpould I get it Repaired without Spending a Fortune? Wesley AB8KD
[Repeater-Builder] Re: Emergency Medical Systems Duplex / Repeater UHF Mobile Radio Model Q2203A
There are two files flaoting around. One is 16MB, 77 pages of both of those manuals, http://www.repeater-builder.com/micor/pdf/micor-ems-uhf-manual.pdf There is a 445MB one of the same, very good quality. GeorgeC W2DB --- In Repeater-Builder@yahoogroups.com, Eric Lemmon wb6...@... wrote: Joe, If you want to play with your EMS repeater, you'll need two Motorola manuals: 6881015E70, which covers the basic UHF Micor mobile radio, and 6881029E45, which is the EMS repeater supplement. Both of these manuals are still available from Motorola Parts, for about $92 and $30, respectively. The duplexer is an oddball design using four helical resonators in the TX side and three helical resonators in the RX side. Although it is designed for a 5 MHz split, it probably will not tune down into the 70 cm band. The specs for the QFE1024A duplexer state that both sides should attenuate the opposite frequency by at least 65 dB, and should have an insertion loss no greater than 1.5 dB. The repeater is designed to transmit with 30 watts of power on the eight EMS channels: 468.000, 468.025, 468.050, 468.075. 468.100, 468.125, 468.150, and 468.175 MHz. The eight receive channels are exactly 5 MHz lower. An optional auxiliary receiver allows reception of 458.025, 458.075, 458.125, and 458.175 MHz. (Those frequencies don't look right, but that's what is printed in the EMS manual.) The are a number of extra cards for processing medical telemetry and controlling the repeater functions. 73, Eric Lemmon WB6FLY - Original Message - From: Joe k1ike_m...@... mailto:k1ike_mail%40snet.net To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Sent: Saturday, October 17, 2009 6:49 PM Subject: [Repeater-Builder] Emergency Medical Systems Duplex / Repeater UHF Mobile Radio Model Q2203A snip I just found an orphan EMS model Q2033A mobile at my door. No cables or head, just the transceiver and receiver boxes. These were used on the local ambulance and were full duplex, plus repeater function. Is there any use for these on the ham bands? The duplexer looks to be too wide banded for ham use. I remember playing with one of these duplexers years ago. Looks like I just have Micor spare parts? 73, Joe, K1ike
[Repeater-Builder] Re: Motorola Suitcase Repeater data need
Wow. That must be very special paper its printed on... I'll keep asking around... Thanks, Eric. -GeorgeC --- In Repeater-Builder@yahoogroups.com, Eric Lemmon wb6...@... wrote: George, I have good news and bad news. The good news is that Motorola Parts still has the 6881021C95 manual available for purchase. The bad news is that it costs about $215. A wealth of information on the MX-300 series of radios is available here: www.repeater-builder.com/motorola/mx-series/index.html All MX-300 series radios operate on a 7.5 volt battery. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of George C Sent: Sunday, October 18, 2009 11:17 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Motorola Suitcase Repeater data need Hi everyone. I have a Motorola Suitcase P44SYS1180BT. Looks like it was modified to -3180 (PL), clean mod. Can anyone confirm that this is based on a pair of MX320-S radios? I haven't had time to do more than a checkout and visual. No duplexer, it was originally setup on an impossible split for mobile duplexers (1.5 MHz). Battery never installed. Second thing I need to confirm. I have heard two versions of battery info. One is 8 Volt, one is 12 Volt. 12 makes more sense to me, but don't want to experiment. Lastly, I have the 450 MX pdf manual from the site here, but need original manual or a scan. I'm not even going to call /\/\ about it, I'm sure it isn't available. According to a posting on Batboard the manuals are: # 68-81021C90-A # 68-81021C95-O Next I'll need to reprogram, that's for another day. Its in ham band and works fine for now... GeorgeC W2DB Austin, TX
Re: [Repeater-Builder] Wavetek 3000
Instead of soldering the damaged IC to the board, I wonder if you could buy headers that plug into the IC board socket and solder the IC to the header? Joe DCFluX wrote: As I undersstand it wavetek put some kinda anti oxidizing goo on the IC pins. But it had the side effect of disolving the IC pins after quite some time. So the solusion was to replace the ICs or trying to solder the IC to the board to make good contact with the pins. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/Repeater-Builder/join (Yahoo! ID required) * To change settings via email: mailto:repeater-builder-dig...@yahoogroups.com mailto:repeater-builder-fullfeatu...@yahoogroups.com * To unsubscribe from this group, send an email to: repeater-builder-unsubscr...@yahoogroups.com * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Wavetek 3000
Interesting Idea Joe--thanks Andy -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Joe Sent: Sunday, October 18, 2009 2:56 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Wavetek 3000 Instead of soldering the damaged IC to the board, I wonder if you could buy headers that plug into the IC board socket and solder the IC to the header? Joe DCFluX wrote: As I undersstand it wavetek put some kinda anti oxidizing goo on the IC pins. But it had the side effect of disolving the IC pins after quite some time. So the solusion was to replace the ICs or trying to solder the IC to the board to make good contact with the pins. Yahoo! Groups Links
Re: [Repeater-Builder] Wavetek 3000
Good Question Joe Wesley - Original Message - From: Joe k1ike_m...@snet.net To: Repeater-Builder@yahoogroups.com Sent: Sunday, October 18, 2009 5:56 PM Subject: Re: [Repeater-Builder] Wavetek 3000 Instead of soldering the damaged IC to the board, I wonder if you could buy headers that plug into the IC board socket and solder the IC to the header? Joe DCFluX wrote: As I undersstand it wavetek put some kinda anti oxidizing goo on the IC pins. But it had the side effect of disolving the IC pins after quite some time. So the solusion was to replace the ICs or trying to solder the IC to the board to make good contact with the pins. Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/Repeater-Builder/join (Yahoo! ID required) * To change settings via email: mailto:repeater-builder-dig...@yahoogroups.com mailto:repeater-builder-fullfeatu...@yahoogroups.com * To unsubscribe from this group, send an email to: repeater-builder-unsubscr...@yahoogroups.com * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Emergency Medical Systems Duplex / Repeater UHF Mobile Radio Model Q2203A
Hello Eric, My EMS repeater also has 2 more frequencies in it, 468.950 and 468.975, for a total of 10 frequencies. I also have the optional receiver with the 4 freqs in it. I found the 2 manuals and it explained that the opt receiver was used in the repeater mode. The EMS tech could talk thru the repeater in the vehicle and even send EKGs to the hospital. It sounded like an interesting application and just wondered if anyone found a unique use for this equipment. I hate to just junk it. 73, Joe, K1ike Eric Lemmon wrote: Joe, If you want to play with your EMS repeater, you'll need two Motorola manuals: 6881015E70, which covers the basic UHF Micor mobile radio, and 6881029E45, which is the EMS repeater supplement. Both of these manuals are still available from Motorola Parts, for about $92 and $30, respectively.
Re: [Repeater-Builder] Re: Emergency Medical Systems Duplex / Repeater UHF Mobile Radio Model Q2203A
Hi George, I had found those on the R-B site, interesting reading. Thanks, Joe George C wrote: There are two files flaoting around. One is 16MB, 77 pages of both of those manuals, http://www.repeater-builder.com/micor/pdf/micor-ems-uhf-manual.pdf There is a 445MB one of the same, very good quality. GeorgeC
[Repeater-Builder] Re: GE Lookout Repeater related info needed.
First position is Local on the fist mode selector. My understanding from all internet research is these kinds of repeaters are used on the forest lookouts. It can be used as low power comm unit or low power repeater. I think standby current is around the 70 ma. If I can find at least some info on the PE High band units I think I can modify the ICOM. And see if I can convert to 2 meters. Every body says the same think it is not easy to work on the PE units and I can see why however I really don't want this nice piece of equipment goes to garbage. I think it is worth to give a try. But 100% agree that without proper documentation it will be impossible. Levent WW2L --- In Repeater-Builder@yahoogroups.com, Milt men...@... wrote: In the second picture in the folder there is a 3 position switch to the left of the volume control. The center position is marked RPTR and another position seems to be marked MON. The remaining position marking cannot be read. What is the marking? The term Lookout Repeater is unusual; I recall seeing a Motorola radio manual marked as being a lookout repeater. The unit was, IIRC, comprised of modules from the Business Dispatcher. I believe that the functionality of the unit is unique to a specific type of operation. The use of low power modules suggests that these units were part of a larger system and possibly were used as some form of range extenders. Now the bad news; the PE series modules used in this radio are not the easiest to work on. It has been a long time since I dealt with any of the PE/PY radios but IIRC the frequency sensitive componets were not always on the circuit board. Moving one of these units from 166 to 146 will involve a large amount of work. As always if one wishes to start on such an adventure, manuals are a must along with a knowledge of if and how the unit functions on the existing frequencies. Milt N3LTQ - Original Message - From: lsasmazel lsasma...@... To: Repeater-Builder@yahoogroups.com Sent: Saturday, October 17, 2009 8:19 PM Subject: [Repeater-Builder] Re: GE Lookout Repeater related info needed. This unit come from Alaska regarding to seller it sat in the boxes and wait to get deployed. But it never happened. Frequencies are ; TX : 166.850 Mhz, , 166.850 Mhz RX: 164.425 Mhz, 164.425 Mhz I just figured out that this is one frequency unit :) Levent - WW2L --- In Repeater-Builder@yahoogroups.com, Eric Lemmon wb6fly@ wrote: Levent, The pictures do lend credence to the special part theory. Please advise what the two receive and two transmit frequencies are. Do you have any idea what company or agency owned this device? It's a long shot, but it is always (well, sometimes) possible to track down the previous owner, locate the radio shop that maintained it, and possibly identify the documents you need- if they won't just hand them over. Knowing the frequencies used is a giant first step in that process. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of lsasmazel Sent: Saturday, October 17, 2009 4:49 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: GE Lookout Repeater related info needed. Sorry I forget the mention I put the picture under GE Lookup Repeater folder. There ais one more Number I find it is on the back of the unit and it is PL19D424600G4 this is on the back of the box. 73 Levent - WW2L --- In Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com , Eric Lemmon wb6fly@ wrote: Levent, The component number 19C320943G1 is a SPCL COMP BD. I think it's time to take some pictures of this device, since it seems to be an oddball unit that was not a regular production item. Is there no label or tag on the outside of the box, which might give this thing a name or a model number? Without a clear identification of the whole unit, all we can determine is that it is a special part that incorporates some PE handheld modules. Regarding power requirements, a typical 5-watt radio draws about 2 amperes during transmit. Add 1 amp or so for running the controller, and you can assume that a 5-amp supply will suffice. But, be careful to determine what voltage is required to run this thing, before hooking up your favorite Astron power supply. The unit may require 7.5 or 10 VDC, and you don't know that without more documentation. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com ] On Behalf Of lsasmazel Sent: Saturday, October 17, 2009 4:06 PM To: Repeater-Builder@yahoogroups.com
Re: [Repeater-Builder] kendecom repeaters on 220
Dave, I sent a note to your calls...@comcast.net and received this return: Your message cannot be delivered to the following recipients: Recipient address: wa3...@comcast.net Reason: Illegal host/domain name found Please send me contact information -- Thank You, Ron WA3GIN wrote: We had a Mark 4 on 2m, for many years. Transmit audio the best we ever heard. Rec was fine. The Controller was Old school but it did what it said it would. For a Military repeater converted for the commercial marketplace in the 70s I think they did an OK job. You can still get service for them too! Anyone looking to buy a 2m Mark 4 in great condition; to play with or as a back-up or for a portable unit, email me direct. We upgraded to Kenwood TKR. Nice, easy to program but the audio doesn't come close to the Kendicom's. 73, dave wa3gin - Original Message - *From:* n...@no6b.com mailto:n...@no6b.com *To:* Repeater-Builder@yahoogroups.com mailto:Repeater-Builder@yahoogroups.com *Sent:* Sunday, October 18, 2009 2:47 PM *Subject:* Re: [Repeater-Builder] kendecom repeaters on 220 At 10/18/2009 10:28 AM, you wrote: Hey guys, I'm working with a group and have given them several suggestions for repeaters on 220 including hipro, ge, moto, etc. One thing i don't know much about is the kendecom, and thought i would ask since they want to know. As far as relyability, good, bad? In a word, bad. The RXs are salvageable, do have some strong points. The internal squelch is NG IMO needs to be replaced, preferably with a Micor squelch. The TXs internal controller are junk. Best bet for 220 is a converted GE or Micor, or find a Midland 13-509 to split apart. Bob NO6B
[Repeater-Builder] Astron Power Supply Alert
It has come to my attention that Astron has a built-in design flaw that may cause problems for some repeater operators. I discovered this when I replaced a suspect Pyramid power supply at my mountaintop 220 MHz repeater with an Astron SS-12 switching power supply. When I got back home, and in a very quiet environment, I was shocked to hear a very prominent 60 Hz hum on the 220 carrier. Since a switching power supply uses a switching frequency up in the 40 kHz range, I could not understand how there could be 60 Hz hum! The very next day, I took a known-good DuraComm switching power supply with me and returned to the repeater site and exchanged the two units. This time, I moved some distance away from the repeater building and tested with a handheld to ensure that the carrier was hum-free, and it was. I could not detect the hum on the first trip because electrical equipment next to the repeater is quite noisy. Once I got the Astron power supply on the bench, the cause of the hum was obvious: The negative output terminal was grounded internally! Although most large Astron power supplies such as the RS-20, RS-35, SS-25, and SS-30 have a black jumper wire between the negative terminal and the case, the SS-12 uses a trace on the PC board to make the connection. I then e-mailed Astron Tech Support and received a schematic of the unit, along with advice as to where the offending trace was located. A quick bit of work with a hobby knife cut the trace, and floated the negative output lead. Problem solved! Astron seems to be the only power supply brand that routinely grounds the negative lead; none of my units made by DuraComm, Samlex, Astec, or Pyramid have this connection. The hum was caused by a ground loop injecting 60 Hz into the DC source feeding the repeater. Since the radio, duplexer, and antenna feedline is always solidly grounded for surge protection, that means that the DC power source is grounded in more than one place- a very bad idea. I have modified all my Astron power supplies- both linear and switching- to remove any internal connections to ground at the negative DC output. I had a similar problem several months ago on my 6m repeater, which had a recurring problem with controller lockup. After I swapped the Astron RS-35M power supply and put in a DuraComm supply, the problems went away. As you might expect, the Astron RS-35M was causing a ground loop, but this time it didn't cause audible hum. It did, however, corrupt some of the data signals going to the controller. I strongly suggest that owners of an Astron power supply make a simple test with a V-O-M. With the output connections open and the power supply unplugged, measure the resistance between the grounding prong of the AC plug and the negative DC output terminal. If the reading is in the megohms, fine. If it is a short, you know what to do... 73, Eric Lemmon WB6FLY
RE: [Repeater-Builder] Re: GE Lookout Repeater related info needed.
Hello Levent. I tried to send you an email direct but comcast would not let it through. You will need to send the Sicoms to ICM and have them install the xtal and temperature compensate it. Then all you need is the tuning instructions to re-tune it to the ham band. If you can stay near 148 it would be the esaiest for you to tune it. I might have a pdf of the Loockout Manual. What is a good email address and I can forward you the PDF. Butch, KE7FEL/r To: Repeater-Builder@yahoogroups.com From: lsasma...@comcast.net Date: Sun, 18 Oct 2009 22:18:03 + Subject: [Repeater-Builder] Re: GE Lookout Repeater related info needed. First position is Local on the fist mode selector. My understanding from all internet research is these kinds of repeaters are used on the forest lookouts. It can be used as low power comm unit or low power repeater. I think standby current is around the 70 ma. If I can find at least some info on the PE High band units I think I can modify the ICOM. And see if I can convert to 2 meters. Every body says the same think it is not easy to work on the PE units and I can see why however I really don't want this nice piece of equipment goes to garbage. I think it is worth to give a try. But 100% agree that without proper documentation it will be impossible. Levent WW2L --- In Repeater-Builder@yahoogroups.com, Milt men...@... wrote: In the second picture in the folder there is a 3 position switch to the left of the volume control. The center position is marked RPTR and another position seems to be marked MON. The remaining position marking cannot be read. What is the marking? The term Lookout Repeater is unusual; I recall seeing a Motorola radio manual marked as being a lookout repeater. The unit was, IIRC, comprised of modules from the Business Dispatcher. I believe that the functionality of the unit is unique to a specific type of operation. The use of low power modules suggests that these units were part of a larger system and possibly were used as some form of range extenders. Now the bad news; the PE series modules used in this radio are not the easiest to work on. It has been a long time since I dealt with any of the PE/PY radios but IIRC the frequency sensitive componets were not always on the circuit board. Moving one of these units from 166 to 146 will involve a large amount of work. As always if one wishes to start on such an adventure, manuals are a must along with a knowledge of if and how the unit functions on the existing frequencies. Milt N3LTQ - Original Message - From: lsasmazel lsasma...@... To: Repeater-Builder@yahoogroups.com Sent: Saturday, October 17, 2009 8:19 PM Subject: [Repeater-Builder] Re: GE Lookout Repeater related info needed. This unit come from Alaska regarding to seller it sat in the boxes and wait to get deployed. But it never happened. Frequencies are ; TX : 166.850 Mhz, , 166.850 Mhz RX: 164.425 Mhz, 164.425 Mhz I just figured out that this is one frequency unit :) Levent - WW2L --- In Repeater-Builder@yahoogroups.com, Eric Lemmon wb6fly@ wrote: Levent, The pictures do lend credence to the special part theory. Please advise what the two receive and two transmit frequencies are. Do you have any idea what company or agency owned this device? It's a long shot, but it is always (well, sometimes) possible to track down the previous owner, locate the radio shop that maintained it, and possibly identify the documents you need- if they won't just hand them over. Knowing the frequencies used is a giant first step in that process. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of lsasmazel Sent: Saturday, October 17, 2009 4:49 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: GE Lookout Repeater related info needed. Sorry I forget the mention I put the picture under GE Lookup Repeater folder. There ais one more Number I find it is on the back of the unit and it is PL19D424600G4 this is on the back of the box. 73 Levent - WW2L --- In Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com , Eric Lemmon wb6fly@ wrote: Levent, The component number 19C320943G1 is a SPCL COMP BD. I think it's time to take some pictures of this device, since it seems to be an oddball unit that was not a regular production item. Is there no label or tag on the outside of the box, which might give this thing a name or a model number? Without a clear identification of the whole unit, all we can determine is that it is a special part that incorporates some PE handheld modules. Regarding power requirements, a typical 5-watt radio draws about 2 amperes during transmit. Add 1 amp or so for running the
Re: [Repeater-Builder] kendecom repeaters on 220
WIerd, I've had this email address for over ten years and been getting email all day. Is there a space between Comast and .net. It looks like you may have inserted a space which would have caused the error message to be sent. What's up, dave - Original Message - From: MR. B To: Repeater-Builder@yahoogroups.com Sent: Sunday, October 18, 2009 7:00 PM Subject: Re: [Repeater-Builder] kendecom repeaters on 220 Dave, I sent a note to your calls...@comcast.net and received this return: Your message cannot be delivered to the following recipients: Recipient address: wa3...@comcast.net Reason: Illegal host/domain name foundPlease send me contact information -- Thank You, Ron WA3GIN wrote: We had a Mark 4 on 2m, for many years. Transmit audio the best we ever heard. Rec was fine. The Controller was Old school but it did what it said it would. For a Military repeater converted for the commercial marketplace in the 70s I think they did an OK job. You can still get service for them too! Anyone looking to buy a 2m Mark 4 in great condition; to play with or as a back-up or for a portable unit, email me direct. We upgraded to Kenwood TKR. Nice, easy to program but the audio doesn't come close to the Kendicom's. 73, dave wa3gin - Original Message - From: n...@no6b.com To: Repeater-Builder@yahoogroups.com Sent: Sunday, October 18, 2009 2:47 PM Subject: Re: [Repeater-Builder] kendecom repeaters on 220 At 10/18/2009 10:28 AM, you wrote: Hey guys, I'm working with a group and have given them several suggestions for repeaters on 220 including hipro, ge, moto, etc. One thing i don't know much about is the kendecom, and thought i would ask since they want to know. As far as relyability, good, bad? In a word, bad. The RXs are salvageable, do have some strong points. The internal squelch is NG IMO needs to be replaced, preferably with a Micor squelch. The TXs internal controller are junk. Best bet for 220 is a converted GE or Micor, or find a Midland 13-509 to split apart. Bob NO6B
RE: [Repeater-Builder] Motorola Suitcase Repeater data need
The original M suitcase repeaters were MX based. The original standard MX was crystal controlled. Later MX-S radios were synthesized via a internal prom/eeprom. Specialized gear to reprogram those, but a few comm shops out there on the web that can do them. For the crystal UHF MX it works off one crystal for the frequency and another is the offset split. In the HT version there usually was a 5 MHz offset and a simplex offset crystal. All three are housed in 'channel elements'. If you are careful you can replace the crystal yourself. In the repeater there will be two MX's radios, one only populated with modules for the receiver and the other for the transmitter. So you'll have two xtals to get. I don't have a manual in front of me, but be warned that the 'modules' which make up the receiver and transmitter were range dependent. Usually the radio will work if you bring it down to the ham band, but it might not meet specs with the wrong modules installed. Ralph W4XE -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of George C Sent: Sunday, October 18, 2009 1:17 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Motorola Suitcase Repeater data need Hi everyone. I have a Motorola Suitcase P44SYS1180BT. Looks like it was modified to -3180 (PL), clean mod. Can anyone confirm that this is based on a pair of MX320-S radios? I haven't had time to do more than a checkout and visual. No duplexer, it was originally setup on an impossible split for mobile duplexers (1.5 MHz). Battery never installed. Second thing I need to confirm. I have heard two versions of battery info. One is 8 Volt, one is 12 Volt. 12 makes more sense to me, but don't want to experiment. Lastly, I have the 450 MX pdf manual from the site here, but need original manual or a scan. I'm not even going to call /\/\ about it, I'm sure it isn't available. According to a posting on Batboard the manuals are: # 68-81021C90-A # 68-81021C95-O Next I'll need to reprogram, that's for another day. Its in ham band and works fine for now... GeorgeC W2DB Austin, TX Yahoo! Groups Links
RE: [Repeater-Builder] kendecom repeaters on 220
The repeater there in Fairfax, Va on 224.100 has the best audio of any repeater I ever heard. It is a Kendecom. I dare anyone to tell me that they can tell the difference between the INPUT audio and the OUTPUT audio. Very natural, unprocessed, and a pleasure to listen to. - Mike From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of WA3GIN Sent: Sunday, October 18, 2009 4:26 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] kendecom repeaters on 220 We had a Mark 4 on 2m, for many years. Transmit audio the best we ever heard. Rec was fine. The Controller was Old school but it did what it said it would. For a Military repeater converted for the commercial marketplace in the 70s I think they did an OK job. You can still get service for them too! Anyone looking to buy a 2m Mark 4 in great condition; to play with or as a back-up or for a portable unit, email me direct. We upgraded to Kenwood TKR. Nice, easy to program but the audio doesn't come close to the Kendicom's. 73, dave wa3gin - Original Message - From: n...@no6b.com To: Repeater-Builder@yahoogroups.com Sent: Sunday, October 18, 2009 2:47 PM Subject: Re: [Repeater-Builder] kendecom repeaters on 220 At 10/18/2009 10:28 AM, you wrote: Hey guys, I'm working with a group and have given them several suggestions for repeaters on 220 including hipro, ge, moto, etc. One thing i don't know much about is the kendecom, and thought i would ask since they want to know. As far as relyability, good, bad? In a word, bad. The RXs are salvageable, do have some strong points. The internal squelch is NG IMO needs to be replaced, preferably with a Micor squelch. The TXs internal controller are junk. Best bet for 220 is a converted GE or Micor, or find a Midland 13-509 to split apart. Bob NO6B __ Information from ESET NOD32 Antivirus, version of virus signature database 4520 (20091018) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com
[Repeater-Builder] Spectrum SCR-200 222Mhz receiver problem
Hello to the group, Another project on the bench. I have a club 222Mhz Spectrum repeater on the bench. It was homebrewed years ago from spectrum RX and TX boards on a homemade chassis.. The receiver was deaf. I found that L122, the Quadrature Detector Coil, was open. I managed to get it off the board, disassemble it, and somehow I fixed it. The wire is hair-like in diameter. I'm a little unsure if this is going to be a permanent fix, so does anyone know a source for this coil? 73, Joe, K1ike
RE: [Repeater-Builder] kendecom repeaters on 220
At 10/18/2009 19:17, you wrote: The repeater there in Fairfax, Va on 224.100 has the best audio of any repeater I ever heard. It is a Kendecom. I dare anyone to tell me that they can tell the difference between the INPUT audio and the OUTPUT audio. Very natural, unprocessed, and a pleasure to listen to. - Mike Wondering what you did to it to make it sound so good. Every one I've heard around here sounds very restricted somewhat distorted. In fact, I can usually tell if a repeater is a Kendecom by the characteristically poor repeat audio. Bob NO6B
[Repeater-Builder] Re: Spectrum SCR-200 222Mhz receiver problem
The receiver uses a common theme found in other similar receivers. From memory the IF is probably 21.4 MHz or something like that and the multi function chip is an MC-3359 or an something like that even though the diagram shows a house part number. You can also compare the diagram to the MC-3361 or the MC-3357 ... I'm pretty sure it's one of those. Find another mfgr making receiver boards with a similar IF layout and order spare parts from them. You could even check a Toko Coil source to see what they offer up. Shouldn't even be horribly expensive to find a replacement quad coil for the common Low Power Narrowband FM IF chips. The trick is to ID the chip, find a mfgr using the same chip and order parts for that receiver. I've done it many times... cheers, skipp Joe k1ike_m...@... wrote: Hello to the group, Another project on the bench. I have a club 222Mhz Spectrum repeater on the bench. It was homebrewed years ago from spectrum RX and TX boards on a homemade chassis.. The receiver was deaf. I found that L122, the Quadrature Detector Coil, was open. I managed to get it off the board, disassemble it, and somehow I fixed it. The wire is hair-like in diameter. I'm a little unsure if this is going to be a permanent fix, so does anyone know a source for this coil? 73, Joe, K1ike
RE: [Repeater-Builder] kendecom repeaters on 220
Hello Bob, Well..I know you would know what a good machine should sound like. You have worked a few I know! Steve, W4YHD had done some audio tailoring within the unit but just what I could not say. But I know it has been on the air with nary a glitch for a quarter century or more. In fact I would say that his repeater has been the most reliable machine in our club all the years I lived up there. And it is still going strong. - Mike From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of n...@no6b.com Sent: Sunday, October 18, 2009 11:45 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] kendecom repeaters on 220 At 10/18/2009 19:17, you wrote: The repeater there in Fairfax, Va on 224.100 has the best audio of any repeater I ever heard. It is a Kendecom. I dare anyone to tell me that they can tell the difference between the INPUT audio and the OUTPUT audio. Very natural, unprocessed, and a pleasure to listen to. - Mike Wondering what you did to it to make it sound so good. Every one I've heard around here sounds very restricted somewhat distorted. In fact, I can usually tell if a repeater is a Kendecom by the characteristically poor repeat audio. Bob NO6B __ Information from ESET NOD32 Antivirus, version of virus signature database 4520 (20091018) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com
[Repeater-Builder] TLN6709B Vibrasponders FS
Hello, I have 4 Vibrasponders available: 1011.6 cps (NA) 668.3 cps (JA) 543.3 cps (GA) 602.6 cps (HA) Anyone need any of these? Make me an offer. I'll send them 1st class mail in a padded envelope. Dennis -- I've been wondering lately...Where am I going and why AM I in this hand basket?? - Dennis L. Wade KG6ZI Carmichael, CA
[Repeater-Builder] Re: Motorola Suitcase Repeater data need
Thanks, all pretty much as expected. I'll fool around regarding battery. It does work and meet spec, clean transmitter, insides very clean. I'll have to come up with the blank code plugs and I know among the folks I know here in Austin, someone has a R1801 programmer. But going to ask around about the manual. I don't think its worth $215... -GeorgeC --- In Repeater-Builder@yahoogroups.com, Ralph Hogan rhog...@... wrote: The original M suitcase repeaters were MX based. The original standard MX was crystal controlled. Later MX-S radios were synthesized via a internal prom/eeprom. Specialized gear to reprogram those, but a few comm shops out there on the web that can do them. For the crystal UHF MX it works off one crystal for the frequency and another is the offset split. In the HT version there usually was a 5 MHz offset and a simplex offset crystal. All three are housed in 'channel elements'. If you are careful you can replace the crystal yourself. In the repeater there will be two MX's radios, one only populated with modules for the receiver and the other for the transmitter. So you'll have two xtals to get. I don't have a manual in front of me, but be warned that the 'modules' which make up the receiver and transmitter were range dependent. Usually the radio will work if you bring it down to the ham band, but it might not meet specs with the wrong modules installed. Ralph W4XE -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of George C Sent: Sunday, October 18, 2009 1:17 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Motorola Suitcase Repeater data need Hi everyone. I have a Motorola Suitcase P44SYS1180BT. Looks like it was modified to -3180 (PL), clean mod. Can anyone confirm that this is based on a pair of MX320-S radios? I haven't had time to do more than a checkout and visual. No duplexer, it was originally setup on an impossible split for mobile duplexers (1.5 MHz). Battery never installed. Second thing I need to confirm. I have heard two versions of battery info. One is 8 Volt, one is 12 Volt. 12 makes more sense to me, but don't want to experiment. Lastly, I have the 450 MX pdf manual from the site here, but need original manual or a scan. I'm not even going to call /\/\ about it, I'm sure it isn't available. According to a posting on Batboard the manuals are: # 68-81021C90-A # 68-81021C95-O Next I'll need to reprogram, that's for another day. Its in ham band and works fine for now... GeorgeC W2DB Austin, TX Yahoo! Groups Links
