Re: [Repeater-Builder] Re: Need pagers
What band are the BPR-2000's on? -- Original Message -- Received: Mon, 07 Feb 2005 11:52:29 AM CST From: R. Dahl [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Need pagers I have about 10 of what I think are BPR-2000's but I will have to double-check the model #'s, etc as they have been re-labled. They were part of a lot of Minitor II's that I got surplus.Is 25$CAN for the lot plus postage cheap?? If you were local they would be free, but, apparently the paperwork to ship to the U.S. has become painfull. As a dubious bonus, you can even have some MX-300s's that were part of the same lot. Ross ve6ars Coy Hilton wrote: Any body know where I can get hold of a few operational pagers, VHF or UHF tone voice, or digital would work. I would prefer something like BPR2000s. First requirement Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Mastr II Rx Freq Drift
I recently rebuilt my 440 repeater and got away from the Mastr II mobile w/ tripler PA and went to a Mastr II Station. As a part of the upgrade, I sent a set of 2C icoms to International Crystal and had them recrystaled to my frequency. It has been on the air since the end of December. When I first put in on, everything was great. After about 2 weeks, I couldnt get into it anymore. After some experimenting, I found that if I tuned down from 449.325 (rx freq) to 449.310 I could bring it up. Went back to the site with the service monitor and put it back on frequency. That was 3 weeks ago. A few days ago, cant bring up the repeater. I tried at 449.320. Bingo! There it is. My question Is it normal for a crystal to drift that much over the first month or so? I dont remember having this problem before but its been a while. No, the building is not climate controlled but is insulated very well and the temperatures have been pretty mild around here lately. Thanks Jamey Wright Systems Analyst Morgan County EMCD 911 Decatur, Al 256-552-0911 Also KD4SIY 444.325 + Yahoo! Groups Links To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [Repeater-Builder] Mastr II Rx Freq Drift
It is not normal for ICM re-stuffs to drift like that. I would suggest checking and monitoring the comp line and the 10v reg supply. Both could exert that much error on the FO that quickly... more likely suspect. Doug KB8GVQ At 03:19 PM 2/7/2005, you wrote: I recently rebuilt my 440 repeater and got away from the Mastr II mobile w/ tripler PA and went to a Mastr II Station. As a part of the upgrade, I sent a set of 2C icoms to International Crystal and had them recrystaled to my frequency. It has been on the air since the end of December. When I first put in on, everything was great. After about 2 weeks, I couldnt get into it anymore. After some experimenting, I found that if I tuned down from 449.325 (rx freq) to 449.310 I could bring it up. Went back to the site with the service monitor and put it back on frequency. That was 3 weeks ago. A few days ago, cant bring up the repeater. I tried at 449.320. Bingo! There it is. My question Is it normal for a crystal to drift that much over the first month or so? I dont remember having this problem before but its been a while. No, the building is not climate controlled but is insulated very well and the temperatures have been pretty mild around here lately. Thanks Jamey Wright Systems Analyst Morgan County EMCD 911 Decatur, Al 256-552-0911 Also KD4SIY 444.325 + -- Yahoo! Groups Links * To visit your group on the web, go to: * http://groups.yahoo.com/group/Repeater-Builder/http://groups.yahoo.com/group/Repeater-Builder/ * * To unsubscribe from this group, send an email to: * mailto:[EMAIL PROTECTED][EMAIL PROTECTED] * * Your use of Yahoo! Groups is subject to the http://docs.yahoo.com/info/terms/Yahoo! Terms of Service. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Repeater, service monitors and other stuff for sale
Ham radio items for sale; My father passed away about a year ago, he left me quite a collection of electronic gear and radios. I never really had too much of an interest in the radio or electronics thing like my father did, so I never was licenced and now I really have no use for the items. On top of things, the company that I work for is promoting me but I have to re-locate. Rather than haul this equipment across the country, stuff I dont use anyways, I've decided to sell it to lighten the load. I had a yard sale, sold a pile of the little items like mobile and hand held radios, tuners antennas - even the tower sold. Some of the people that came by told me to post the stuff on E-Bay, others mentioned yahoo groups and others mentioned newsgroups. Since E-Bay charges an arm and a leg, and I need to get this stuff out of here ASAP, I'll try the groups. To make this stuff go quick because I don't have much time to mess around with it, I've priced the stuff cheap to make a quick sale. Also, I'm prefering to use Paypal rather than Money orders, just because of the time issue. As an added bonus, All items SHIP FREE with insurance and a tracking number. You pay just the amount of the item(s) you want. So with that said, here is the list of items. === Yaesu FT-1000MP Mark V HF tranceiver === Beautiful condition, not a scratch, no dust, even comes with a velvet like dust cover that my mother made, includes the manuals, original box, a MD-200 desk microphone and other goodies Shipped for $1300 === Icom IC-706MKIIG HF tranceiver === This radio is also in good condition. This was used in his car, it had some scratches where the mounting bracket attached. Includes the main unit mounting bracket, remote head mount bracket, the cable, a long power cable, original manuals and paperwork, hand microphone and original box. Shipped for $500 === Kenwood TM-V7A FM dual band mobile radio === This radio has a huge blue backlit display. Very nice looking not a scratch on it. It was used as a base radio - not mobile. Includes the power cord, manual, mounting bracket original box and hand microphone. Shipped for $200 === Kenwood TM-742A multiband FM radio === This radio was used in his car also. It has a couple scratches along the sides where the mounting bracket attached. This radio includes the 2 meter, 220 MHZ and 440Mhz modules. It also has the CTCSS module installed. It includes the manuals, original box, long power cord and mounting bracket. Shipped for $500 === SGC 500 HF amplifier === WOW, this this is built. reminds me of something military built. This 500 Watt HF amplifier was in my fathers car. includes the original box, manual and cables to use it with the ICOM IC-706MKIIG. Shipped for $750 === Motorola Radius R100 UHF repeater === Model number Q2904B. 25 watt, UHF. Programmed for 442.350. Includes the service manual, programming cable and a disk with software. Shipped for $200 === Kenwood TK-880 UHF mobile radios === There is 6 of them available. Each has a long power cord, a push button hand microphone, alpha LCD display, can be used for everything from HAM to business to GMRS etc. Maybe even use 2 of them to make a repeater. Shipped for $200 each === pair shipped for $375 === 4 units for $700 === all 6 for $1000 === Kenwood TK-380 UHF handheld radios === There is 6 of them available. Each has 2 batteries, a drop in charger, a short antenna, a hand microphone, a belt clip, alpha display and can be used for everything from HAM to GMRS to business etc. They can do LTR trunking as well as conventional. Shipped for $175 each === pair shipped for $325 === 4 units for $600 === all 6 for $900 === IFR 1500 Comminications Service Monitor === I had some help identifing this unit from a person who stopped by the yard sale. Its a radio tester - 300khz to 1000Mhz, has a signal generator, tracking generator, ocilloscope, spectrum analyzer, power meter and lots more. It has some scratches and wear on the outer case. the front panel is clean and shows little wear. Both of the displays are bright and clear and comes with a AC power cord and a dc power cord and a big manual. Shipped for $1600 === Ramsey COM3 Service monitor === I had some help identifing this unit from a person who stopped by the yard sale. Its another radio tester. This one is just your basic service monitor. 100Khz to 1000Mhz, has a power meter, 7 LED digit display, frequency counter and more. Show a lot of wear on the outer case. The front panel is good though. No manual. Shipped for $500 I can be reached at [EMAIL PROTECTED] Thanks Nick Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Mot Power Supply
S1347A/B/C/D, S1348A/B/C/D; Variable/Programmable Power Supply Motorola Manual Part Number 68-81069A28 Beyond the above, I will have to look further - elsewhere. Hope this helps, Neil - WA6KLA Thanks for the Help I just ordered it from Mot Parts using the number You gave $ 8.79 Thanks again Don KA9QJG Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Theory versus practice
Hi folks Imagine this scenario. 2 quality, UHF repeater colocated at the same site. Both repeaters are higher power ( 50) out of duplexers, duplexers are high quality BP/BR types. Here's the kicker - they're spaced 25 Khz away from each other but not inverted from each other. Now, theory is one thing as to the interference potential without resorting to mulicouplers and combiners. But what is the real world problem potential? Anyone want to take a stab at this one? Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html We now offer complete Kenwood TKR repeater packages! AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Help! Need information
You need a COS signal of some sort from the radio. As an engineer I recommend running the NHRC-2 in conjunction with a NHRC-Squelch. This will take the RX data signal and give you a carrier detector without any modifications to the radio. But you will need to make sure that this RX data is unprocessed audio from the discriminator, in order to get the high frequency that the squelch board desires. Check your manual. Then you would configure your NHRC-2 to de-emphasize the RX Data audio as well, unless there is no processing done to the TX data line, then you would not de-emphaize the audio, just run it through the controller. Basicly if you got this far, experiment until it doesn't sound Tinny. Of course you could save the low cost of the NHRC squelch board and reclaim one of the unused pins of the radio connector and find the radios COS and give it to the controller, but this may void your radios warenty. On Sun, 06 Feb 2005 12:53:21 -, Anthony L .Ferguson [EMAIL PROTECTED] wrote: Hello folks, I'm in need of some help. I have ordered an Alinco DR-135TMKII which has a DB9 connector on the back for packet. I saw this site http://www.maxentropy.net/radio/amateur_radio.htm#top This person was able to interface an NHRC 2 to the Yaesu FT1500M through the 6 pin din plug on the back of the radio that is used for 1200 baud packet. I would like to do the same thing except using an ALinco Transceiver.I know I've been asked why would I use a new radio for a simplex repeater instead of a good used rig. Well it's rather simple I could use an older radio and interface it with the NHRC 2 controller, but I would not be able to use the micropone while it was connect to the controller. With the new radio installed in my truck and controller conected to the radio I could use the radio normally and when the controller is needed just throw the switch and BINGO! emergency repeater. Now I should mention that I plan to use the same model controller as was used with the Yaesu FT1500M. The NHRC 2 has a DB9 connector also and here is the pin out for the controller. Pin 1 ground Pin 2 13.8 volts Pin 3 PTT ( active low) Pin 4 Tx audio Pin 5 RX audio Pin 6 CAS+ Pin 7 CAS- Pin 8 gound/Tx audio Pin 9 ground/RX audio Here are the pin out for the DB9 connector on the Alinco Transceiver. These will also be through the 1200 baud connector set up. PINS 1,2,3,6,and 8 not connected Pin 4 RX data Pin 5 ground/sheild Pin 7 PTT Pin 9 Tx Data So! Do you think I will be able to interface these two items together and fuction as a simplex repeater as KE6DAX did with the Yaesu? I hope so, because there is a need for such a device in my area in case the local repeater is down and something is needed. I'm also working on getting my own repeater up and running also so if it ever goes down I'll be able to trun on the switch and BINGO! temporary emergency repeater is active till I can get my repeater back into full service. I'm serious about wanting to have an emergency back up repeater and the simplex would be the answer to a problem . Just check out my website http://home.earthlink.net/~kb4zgo/ and take a look at the family photo of radio on my site. Well enough of my ramblings. Please let me know what information you have or suggestions thanks 73 de KB4zgo [EMAIL PROTECTED] Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Repeater, service monitors and other stuff for sale
Nick: I'm interested in the R100 repeater, if it's not already taken. Let me know how to send the money. Kim -Original Message- From: nickheiniger [mailto:[EMAIL PROTECTED] Sent: Monday, February 07, 2005 3:02 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Repeater, service monitors and other stuff for sale Ham radio items for sale; My father passed away about a year ago, he left me quite a collection of electronic gear and radios. I never really had too much of an interest in the radio or electronics thing like my father did, so I never was licenced and now I really have no use for the items. On top of things, the company that I work for is promoting me but I have to re-locate. Rather than haul this equipment across the country, stuff I dont use anyways, I've decided to sell it to lighten the load. I had a yard sale, sold a pile of the little items like mobile and hand held radios, tuners antennas - even the tower sold. Some of the people that came by told me to post the stuff on E-Bay, others mentioned yahoo groups and others mentioned newsgroups. Since E-Bay charges an arm and a leg, and I need to get this stuff out of here ASAP, I'll try the groups. To make this stuff go quick because I don't have much time to mess around with it, I've priced the stuff cheap to make a quick sale. Also, I'm prefering to use Paypal rather than Money orders, just because of the time issue. As an added bonus, All items SHIP FREE with insurance and a tracking number. You pay just the amount of the item(s) you want. So with that said, here is the list of items. === Yaesu FT-1000MP Mark V HF tranceiver === Beautiful condition, not a scratch, no dust, even comes with a velvet like dust cover that my mother made, includes the manuals, original box, a MD-200 desk microphone and other goodies Shipped for $1300 === Icom IC-706MKIIG HF tranceiver === This radio is also in good condition. This was used in his car, it had some scratches where the mounting bracket attached. Includes the main unit mounting bracket, remote head mount bracket, the cable, a long power cable, original manuals and paperwork, hand microphone and original box. Shipped for $500 === Kenwood TM-V7A FM dual band mobile radio === This radio has a huge blue backlit display. Very nice looking not a scratch on it. It was used as a base radio - not mobile. Includes the power cord, manual, mounting bracket original box and hand microphone. Shipped for $200 === Kenwood TM-742A multiband FM radio === This radio was used in his car also. It has a couple scratches along the sides where the mounting bracket attached. This radio includes the 2 meter, 220 MHZ and 440Mhz modules. It also has the CTCSS module installed. It includes the manuals, original box, long power cord and mounting bracket. Shipped for $500 === SGC 500 HF amplifier === WOW, this this is built. reminds me of something military built. This 500 Watt HF amplifier was in my fathers car. includes the original box, manual and cables to use it with the ICOM IC-706MKIIG. Shipped for $750 === Motorola Radius R100 UHF repeater === Model number Q2904B. 25 watt, UHF. Programmed for 442.350. Includes the service manual, programming cable and a disk with software. Shipped for $200 === Kenwood TK-880 UHF mobile radios === There is 6 of them available. Each has a long power cord, a push button hand microphone, alpha LCD display, can be used for everything from HAM to business to GMRS etc. Maybe even use 2 of them to make a repeater. Shipped for $200 each === pair shipped for $375 === 4 units for $700 === all 6 for $1000 === Kenwood TK-380 UHF handheld radios === There is 6 of them available. Each has 2 batteries, a drop in charger, a short antenna, a hand microphone, a belt clip, alpha display and can be used for everything from HAM to GMRS to business etc. They can do LTR trunking as well as conventional. Shipped for $175 each === pair shipped for $325 === 4 units for $600 === all 6 for $900 === IFR 1500 Comminications Service Monitor === I had some help identifing this unit from a person who stopped by the yard sale. Its a radio tester - 300khz to 1000Mhz, has a signal generator, tracking generator, ocilloscope, spectrum analyzer, power meter and lots more. It has some scratches and wear on the outer case. the front panel is clean and shows little wear. Both of the displays are bright and clear and comes with a AC power cord and a dc power cord and a big manual. Shipped for $1600 === Ramsey COM3 Service monitor === I had some help identifing this unit from a person who stopped by the yard sale. Its another radio tester. This one is just your basic service monitor. 100Khz to 1000Mhz, has a power meter, 7 LED digit display, frequency counter and more. Show a lot of wear on the outer case. The front panel is good though. No manual. Shipped for $500 I can be reached at [EMAIL PROTECTED] Thanks Nick
Re: [Repeater-Builder] Repeater, service monitors and other stuff for sale
if Kim does not get the repeater please let me know. thanks John [EMAIL PROTECTED] - Original Message - From: Kim Carr [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, February 07, 2005 5:49 PM Subject: RE: [Repeater-Builder] Repeater, service monitors and other stuff for sale Nick: I'm interested in the R100 repeater, if it's not already taken. Let me know how to send the money. Kim -Original Message- From: nickheiniger [mailto:[EMAIL PROTECTED] Sent: Monday, February 07, 2005 3:02 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Repeater, service monitors and other stuff for sale Ham radio items for sale; My father passed away about a year ago, he left me quite a collection of electronic gear and radios. I never really had too much of an interest in the radio or electronics thing like my father did, so I never was licenced and now I really have no use for the items. On top of things, the company that I work for is promoting me but I have to re-locate. Rather than haul this equipment across the country, stuff I dont use anyways, I've decided to sell it to lighten the load. I had a yard sale, sold a pile of the little items like mobile and hand held radios, tuners antennas - even the tower sold. Some of the people that came by told me to post the stuff on E-Bay, others mentioned yahoo groups and others mentioned newsgroups. Since E-Bay charges an arm and a leg, and I need to get this stuff out of here ASAP, I'll try the groups. To make this stuff go quick because I don't have much time to mess around with it, I've priced the stuff cheap to make a quick sale. Also, I'm prefering to use Paypal rather than Money orders, just because of the time issue. As an added bonus, All items SHIP FREE with insurance and a tracking number. You pay just the amount of the item(s) you want. So with that said, here is the list of items. === Yaesu FT-1000MP Mark V HF tranceiver === Beautiful condition, not a scratch, no dust, even comes with a velvet like dust cover that my mother made, includes the manuals, original box, a MD-200 desk microphone and other goodies Shipped for $1300 === Icom IC-706MKIIG HF tranceiver === This radio is also in good condition. This was used in his car, it had some scratches where the mounting bracket attached. Includes the main unit mounting bracket, remote head mount bracket, the cable, a long power cable, original manuals and paperwork, hand microphone and original box. Shipped for $500 === Kenwood TM-V7A FM dual band mobile radio === This radio has a huge blue backlit display. Very nice looking not a scratch on it. It was used as a base radio - not mobile. Includes the power cord, manual, mounting bracket original box and hand microphone. Shipped for $200 === Kenwood TM-742A multiband FM radio === This radio was used in his car also. It has a couple scratches along the sides where the mounting bracket attached. This radio includes the 2 meter, 220 MHZ and 440Mhz modules. It also has the CTCSS module installed. It includes the manuals, original box, long power cord and mounting bracket. Shipped for $500 === SGC 500 HF amplifier === WOW, this this is built. reminds me of something military built. This 500 Watt HF amplifier was in my fathers car. includes the original box, manual and cables to use it with the ICOM IC-706MKIIG. Shipped for $750 === Motorola Radius R100 UHF repeater === Model number Q2904B. 25 watt, UHF. Programmed for 442.350. Includes the service manual, programming cable and a disk with software. Shipped for $200 === Kenwood TK-880 UHF mobile radios === There is 6 of them available. Each has a long power cord, a push button hand microphone, alpha LCD display, can be used for everything from HAM to business to GMRS etc. Maybe even use 2 of them to make a repeater. Shipped for $200 each === pair shipped for $375 === 4 units for $700 === all 6 for $1000 === Kenwood TK-380 UHF handheld radios === There is 6 of them available. Each has 2 batteries, a drop in charger, a short antenna, a hand microphone, a belt clip, alpha display and can be used for everything from HAM to GMRS to business etc. They can do LTR trunking as well as conventional. Shipped for $175 each === pair shipped for $325 === 4 units for $600 === all 6 for $900 === IFR 1500 Comminications Service Monitor === I had some help identifing this unit from a person who stopped by the yard sale. Its a radio tester - 300khz to 1000Mhz, has a signal generator, tracking generator, ocilloscope, spectrum analyzer, power meter and lots more. It has some scratches and wear on the outer case. the front panel is clean and shows little wear. Both of the displays are bright and clear and comes with a AC power cord and a dc power cord and a big manual. Shipped for $1600 === Ramsey COM3 Service monitor === I had some help identifing this unit from a person who
[Repeater-Builder] boohoo
i am so touched dougie Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Repeater, service monitors and other stuff for sale
Where are you located ... Neil nickheiniger wrote: Ham radio items for sale; My father passed away about a year ago, he left me quite a collection of electronic gear and radios. I never really had too much of an interest in the radio or electronics thing like my father did, so I never was licenced and now I really have no use for the items. On top of things, the company that I work for is promoting me but I have to re-locate. Rather than haul this equipment across the country, stuff I dont use anyways, I've decided to sell it to lighten the load. I had a yard sale, sold a pile of the little items like mobile and hand held radios, tuners antennas - even the tower sold. Some of the people that came by told me to post the stuff on E-Bay, others mentioned yahoo groups and others mentioned newsgroups. Since E-Bay charges an arm and a leg, and I need to get this stuff out of here ASAP, I'll try the groups. To make this stuff go quick because I don't have much time to mess around with it, I've priced the stuff cheap to make a quick sale. Also, I'm prefering to use Paypal rather than Money orders, just because of the time issue. As an added bonus, All items SHIP FREE with insurance and a tracking number. You pay just the amount of the item(s) you want. So with that said, here is the list of items. === Yaesu FT-1000MP Mark V HF tranceiver === Beautiful condition, not a scratch, no dust, even comes with a velvet like dust cover that my mother made, includes the manuals, original box, a MD-200 desk microphone and other goodies Shipped for $1300 === Icom IC-706MKIIG HF tranceiver === This radio is also in good condition. This was used in his car, it had some scratches where the mounting bracket attached. Includes the main unit mounting bracket, remote head mount bracket, the cable, a long power cable, original manuals and paperwork, hand microphone and original box. Shipped for $500 === Kenwood TM-V7A FM dual band mobile radio === This radio has a huge blue backlit display. Very nice looking not a scratch on it. It was used as a base radio - not mobile. Includes the power cord, manual, mounting bracket original box and hand microphone. Shipped for $200 === Kenwood TM-742A multiband FM radio === This radio was used in his car also. It has a couple scratches along the sides where the mounting bracket attached. This radio includes the 2 meter, 220 MHZ and 440Mhz modules. It also has the CTCSS module installed. It includes the manuals, original box, long power cord and mounting bracket. Shipped for $500 === SGC 500 HF amplifier === WOW, this this is built. reminds me of something military built. This 500 Watt HF amplifier was in my fathers car. includes the original box, manual and cables to use it with the ICOM IC-706MKIIG. Shipped for $750 === Motorola Radius R100 UHF repeater === Model number Q2904B. 25 watt, UHF. Programmed for 442.350. Includes the service manual, programming cable and a disk with software. Shipped for $200 === Kenwood TK-880 UHF mobile radios === There is 6 of them available. Each has a long power cord, a push button hand microphone, alpha LCD display, can be used for everything from HAM to business to GMRS etc. Maybe even use 2 of them to make a repeater. Shipped for $200 each === pair shipped for $375 === 4 units for $700 === all 6 for $1000 === Kenwood TK-380 UHF handheld radios === There is 6 of them available. Each has 2 batteries, a drop in charger, a short antenna, a hand microphone, a belt clip, alpha display and can be used for everything from HAM to GMRS to business etc. They can do LTR trunking as well as conventional. Shipped for $175 each === pair shipped for $325 === 4 units for $600 === all 6 for $900 === IFR 1500 Comminications Service Monitor === I had some help identifing this unit from a person who stopped by the yard sale. Its a radio tester - 300khz to 1000Mhz, has a signal generator, tracking generator, ocilloscope, spectrum analyzer, power meter and lots more. It has some scratches and wear on the outer case. the front panel is clean and shows little wear. Both of the displays are bright and clear and comes with a AC power cord and a dc power cord and a big manual. Shipped for $1600 === Ramsey COM3 Service monitor === I had some help identifing this unit from a person who stopped by the yard sale. Its another radio tester. This one is just your basic service monitor. 100Khz to 1000Mhz, has a power meter, 7 LED digit display, frequency counter and more. Show a lot of wear on the outer case. The front panel is good though. No manual. Shipped for $500 I can be reached at [EMAIL PROTECTED] Thanks Nick Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of
Re: [Repeater-Builder] Mot Power Supply
You're welcome ... as usual ... :) Neil - WA6KLA KA9QJG wrote: S1347A/B/C/D, S1348A/B/C/D; Variable/Programmable Power Supply Motorola Manual Part Number 68-81069A28 Beyond the above, I will have to look further - elsewhere. Hope this helps, Neil - WA6KLA Thanks for the Help I just ordered it from Mot Parts using the number You gave $ 8.79 Thanks again Don KA9QJG Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Theory versus practice
Tried calling you on the telephone - got a disconnected number? Neil - WA6KLA Ken Arck wrote: Hi folks Imagine this scenario. 2 quality, UHF repeater colocated at the same site. Both repeaters are higher power ( 50) out of duplexers, duplexers are high quality BP/BR types. Here's the kicker - they're spaced 25 Khz away from each other but not inverted from each other. Now, theory is one thing as to the interference potential without resorting to mulicouplers and combiners. But what is the real world problem potential? Anyone want to take a stab at this one? Ken - President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html We now offer complete Kenwood TKR repeater packages! AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Stuff for sale MOVING SALE!!!
if you were serious 2000 miles would be no obstacle at all. but its a nice thought. mdmNeil McKie [EMAIL PROTECTED] wrote: If you were 2000 miles closer ... Neil Ted Bleiman K9MDM - MDM Radio wrote: Reducing inventory prior to Move. limited quantities GE-MAStr II accessory group-cable head speaker and mike $10 set Motorola Mitrek accs clam shell or sys90 head cable speaker $10 set (nomikes) GE Mastrpro Mastr II and Delta speakers 3 for $10 no brackets see website http://www.mdmradio.com for details and other blow out specials. even better stop in and takle a load home. April 30 is our target date for moving so don't hesitate. Move NOW!!Ted Bleiman K9MDM MDM Radio Ltd - 1629-B N. 31 st Ave Melrose Park, IL 60160 708.681.0300 fax 708.681.9800 web http://www.mdmradio.com - Check it now!!Yahoo! Groups Links* To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/* To unsubscribe from this group, send an email to:[EMAIL PROTECTED]* Your use of Yahoo! Groups is subject to:http://docs.yahoo.com/info/terms/ Ted Bleiman K9MDM MDM Radio Ltd - 1629-B N. 31 st Ave Melrose Park, IL 60160 708.681.0300 fax 708.681.9800 web http://www.mdmradio.com - Check it now!! __Do You Yahoo!?Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com Yahoo! Groups Links To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [Repeater-Builder] Stuff for sale MOVING SALE!!!
2000 miles ... is a bit of a distance to speculate on used radio gear - I have been buying the stuff in excess of 40 years ... and have been taken very few times. Most recent time was a used Kenwood TM241 I got at a local swapmeet. If you were closer, I'd go look ... seldom do I chance on an available used something 2000 miles away. Thank you for your comment anyway, Neil McKie - WA6KLA Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Mastr II Rx Freq Drift
At 2/7/2005 12:19 PM, you wrote: I recently rebuilt my 440 repeater and got away from the Mastr II mobile w/ tripler PA and went to a Mastr II Station. As a part of the upgrade, I sent a set of 2C icoms to International Crystal and had them recrystaled to my frequency. It has been on the air since the end of December. When I first put in on, everything was great. After about 2 weeks, I couldn t get into it anymore. After some experimenting, I found that if I tuned down from 449.325 (rx freq) to 449.310 I could bring it up. Went back to the site with the service monitor and put it back on frequency. That was 3 weeks ago. A few days ago, can t bring up the repeater. I tried at 449.320. Bingo! There it is. My question Is it normal for a crystal to drift that much over the first month or so? I don t remember having this problem before but it s been a while. No, the building is not climate controlled but is insulated very well and the temperatures have been pretty mild around here lately. Although crystals do age a very small amount, it's not normal for it to move this much. Sounds like some contamination got inside the can. For as much as ICM charges for crystals these days, you should have no problem getting a replacement from them at no charge. Bob NO6B Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Mastr II Rx Freq Drift
At one time I had ICM make me some for Motorola HT-210 and HT-90. They worked ok in Florida but when we took them to Gatlinburg TN in winter almost all the radio's had problems of being off Freg. never ordered from them again. Been using Bomar for many years for repeaters and HT-500 and GE mobiles with no problems. that is my 2 cents. John - Original Message - From: Bob Dengler [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, February 07, 2005 7:06 PM Subject: Re: [Repeater-Builder] Mastr II Rx Freq Drift At 2/7/2005 12:19 PM, you wrote: I recently rebuilt my 440 repeater and got away from the Mastr II mobile w/ tripler PA and went to a Mastr II Station. As a part of the upgrade, I sent a set of 2C icoms to International Crystal and had them recrystaled to my frequency. It has been on the air since the end of December. When I first put in on, everything was great. After about 2 weeks, I couldn t get into it anymore. After some experimenting, I found that if I tuned down from 449.325 (rx freq) to 449.310 I could bring it up. Went back to the site with the service monitor and put it back on frequency. That was 3 weeks ago. A few days ago, can t bring up the repeater. I tried at 449.320. Bingo! There it is. My question Is it normal for a crystal to drift that much over the first month or so? I don t remember having this problem before but it s been a while. No, the building is not climate controlled but is insulated very well and the temperatures have been pretty mild around here lately. Although crystals do age a very small amount, it's not normal for it to move this much. Sounds like some contamination got inside the can. For as much as ICM charges for crystals these days, you should have no problem getting a replacement from them at no charge. Bob NO6B Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Theory versus practice (close spaced transmitters)
Hi Ken, Shouldn't be a big problem if both repeaters have both physical and electrical distance from each other. Both would probably require dual port (min) circulators - isolators and individual antennas with the mentioned physical and electrical isolation. The best option is a trade and also depends on where you can put the antennas on the tower. You can do it all on one antenna, but you'd be stuck with using a hybrid and a net loss of 50% (min) power. If you'd like the best receive option, duplex both receivers off a top antenna with one transmitter. Run a lower antenna for the second transmitter. The frequency spacing would normally require a one antenna hybrid, which eats about 50% of your power into a termination or load port. Smart money would just add a second antenna for the second transmitter. cheers, skipp www.radiowrench.com/sonic Ken Arck [EMAIL PROTECTED] wrote: Hi folks Imagine this scenario. 2 quality, UHF repeater colocated at the same site. Both repeaters are higher power ( 50) out of duplexers, duplexers are high quality BP/BR types. Here's the kicker - they're spaced 25 Khz away from each other but not inverted from each other. Now, theory is one thing as to the interference potential without resorting to mulicouplers and combiners. But what is the real world problem potential? Anyone want to take a stab at this one? Ken Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Theory versus practice (close spaced transmitters)
Thanks for the input, guys (Neil's butterfingers in dialing a phone number notwithstanding!). Yea, I definately want to avoid xmtr combiners if at all possible. The closer the spacing of the ports, the more ridiculous the loss becomes, so the 2nd xmt antenna option is much more attractive. I have plenty of circulators laying around (not to mention one of the repeaters is a Micor factory repeater, so it has a circulator already). Anyway, we'll see how it goes and thanks again! Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html We now offer complete Kenwood TKR repeater packages! AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Mastr II Rx Freq Drift
I ordered 7 crystals from Bomar in December on the phone. When I received the order they had gotten a repeater pair reversed IE the pair was for a link radio on a repeater, what I actually got was the crystals for the repeater frequency, the Tx and Rx frequencies were reversed. When I called they said that I had made the mistake and that they would be glad to make the crystals that I needed for 10 bucks each. SAY WHAT? SO BOMAR is on my nasty list. Great customer no service!! --- In Repeater-Builder@yahoogroups.com, Maire Company [EMAIL PROTECTED] wrote: At one time I had ICM make me some for Motorola HT-210 and HT-90. They worked ok in Florida but when we took them to Gatlinburg TN in winter almost all the radio's had problems of being off Freg. never ordered from them again. Been using Bomar for many years for repeaters and HT-500 and GE mobiles with no problems. that is my 2 cents. John - Original Message - From: Bob Dengler [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, February 07, 2005 7:06 PM Subject: Re: [Repeater-Builder] Mastr II Rx Freq Drift At 2/7/2005 12:19 PM, you wrote: I recently rebuilt my 440 repeater and got away from the Mastr II mobile w/ tripler PA and went to a Mastr II Station. As a part of the upgrade, I sent a set of 2C icoms to International Crystal and had them recrystaled to my frequency. It has been on the air since the end of December. When I first put in on, everything was great. After about 2 weeks, I couldn t get into it anymore. After some experimenting, I found that if I tuned down from 449.325 (rx freq) to 449.310 I could bring it up. Went back to the site with the service monitor and put it back on frequency. That was 3 weeks ago. A few days ago, can t bring up the repeater. I tried at 449.320. Bingo! There it is. My question Is it normal for a crystal to drift that much over the first month or so? I don t remember having this problem before but it s been a while. No, the building is not climate controlled but is insulated very well and the temperatures have been pretty mild around here lately. Although crystals do age a very small amount, it's not normal for it to move this much. Sounds like some contamination got inside the can. For as much as ICM charges for crystals these days, you should have no problem getting a replacement from them at no charge. Bob NO6B Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Help! Need information
Subject: Help! Need information Tony, You can download both the user and service manuals from the Alinco web site: http://www.alinco.com/pdf.files/Instruction/dr135_435ins.pdf http://www.alinco.com/pdf.files/Service/dr135_235_435ser.pdf Bill - WB1GOT I'm in need of some help. I have ordered an Alinco DR-135TMKII which has a DB9 connector on the back for packet. I saw this site http://www.maxentropy.net/radio/amateur_radio.htm#top This person was able to interface an NHRC 2 to the Yaesu FT1500M through the 6 pin din plug on the back of the radio that is used for 1200 baud packet. I would like to do the same thing except using an ALinco Transceiver.I know I've been asked why would I use a new radio for a simplex repeater instead of a good used rig. Well it's rather simple I could use an older radio and interface it with the NHRC 2 controller, but I would not be able to use the micropone while it was connect to the controller. With the new radio installed in my truck and controller conected to the radio I could use the radio normally and when the controller is needed just throw the switch and BINGO! emergency repeater. Now I should mention that I plan to use the same model controller as was used with the Yaesu FT1500M. The NHRC 2 has a DB9 connector also and here is the pin out for the controller. SNIP Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Re: Mastr II Rx Freq Drift
'Tis one of the reasons I prefer to order by written letter. Neil - WA6KLA Coy Hilton wrote: I ordered 7 crystals from Bomar in December on the phone. When I received the order they had gotten a repeater pair reversed IE the pair was for a link radio on a repeater, what I actually got was the crystals for the repeater frequency, the Tx and Rx frequencies were reversed. When I called they said that I had made the mistake and that they would be glad to make the crystals that I needed for 10 bucks each. SAY WHAT? SO BOMAR is on my nasty list. Great customer no service!! --- In Repeater-Builder@yahoogroups.com, Maire Company [EMAIL PROTECTED] wrote: At one time I had ICM make me some for Motorola HT-210 and HT-90. They worked ok in Florida but when we took them to Gatlinburg TN in winter almost all the radio's had problems of being off Freg. never ordered from them again. Been using Bomar for many years for repeaters and HT-500 and GE mobiles with no problems. that is my 2 cents. John - Original Message - From: Bob Dengler [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, February 07, 2005 7:06 PM Subject: Re: [Repeater-Builder] Mastr II Rx Freq Drift At 2/7/2005 12:19 PM, you wrote: I recently rebuilt my 440 repeater and got away from the Mastr II mobile w/ tripler PA and went to a Mastr II Station. As a part of the upgrade, I sent a set of 2C icoms to International Crystal and had them recrystaled to my frequency. It has been on the air since the end of December. When I first put in on, everything was great. After about 2 weeks, I couldn t get into it anymore. After some experimenting, I found that if I tuned down from 449.325 (rx freq) to 449.310 I could bring it up. Went back to the site with the service monitor and put it back on frequency. That was 3 weeks ago. A few days ago, can t bring up the repeater. I tried at 449.320. Bingo! There it is. My question Is it normal for a crystal to drift that much over the first month or so? I don t remember having this problem before but it s been a while. No, the building is not climate controlled but is insulated very well and the temperatures have been pretty mild around here lately. Although crystals do age a very small amount, it's not normal for it to move this much. Sounds like some contamination got inside the can. For as much as ICM charges for crystals these days, you should have no problem getting a replacement from them at no charge. Bob NO6B Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] TPL PA3-1FE-RXRF
Hello, Does anyone have any experience with a TPL PA3-1FE-RXRF, I have one that has blown the transistors and the base balance resistors are burnt where I can't read the values. They read 10 Ohms which is probably correct but would like to replace them anyway. There is also a base load resistor on one transistors that also burnt beyond recognition, also need the value on that one. The transistors are labeled: MSC (top) SD1018-06 (middle) 391N (bottom) I have not looked for these transistors yet, can I find them at RF Industries? Thanks, Paul Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Re: Mastr II Rx Freq Drift
I always fax the info to them. always freg, radio type model all info them need. - Original Message - From: Coy Hilton [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, February 07, 2005 8:43 PM Subject: [Repeater-Builder] Re: Mastr II Rx Freq Drift I ordered 7 crystals from Bomar in December on the phone. When I received the order they had gotten a repeater pair reversed IE the pair was for a link radio on a repeater, what I actually got was the crystals for the repeater frequency, the Tx and Rx frequencies were reversed. When I called they said that I had made the mistake and that they would be glad to make the crystals that I needed for 10 bucks each. SAY WHAT? SO BOMAR is on my nasty list. Great customer no service!! --- In Repeater-Builder@yahoogroups.com, Maire Company [EMAIL PROTECTED] wrote: At one time I had ICM make me some for Motorola HT-210 and HT-90. They worked ok in Florida but when we took them to Gatlinburg TN in winter almost all the radio's had problems of being off Freg. never ordered from them again. Been using Bomar for many years for repeaters and HT-500 and GE mobiles with no problems. that is my 2 cents. John - Original Message - From: Bob Dengler [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, February 07, 2005 7:06 PM Subject: Re: [Repeater-Builder] Mastr II Rx Freq Drift At 2/7/2005 12:19 PM, you wrote: I recently rebuilt my 440 repeater and got away from the Mastr II mobile w/ tripler PA and went to a Mastr II Station. As a part of the upgrade, I sent a set of 2C icoms to International Crystal and had them recrystaled to my frequency. It has been on the air since the end of December. When I first put in on, everything was great. After about 2 weeks, I couldn t get into it anymore. After some experimenting, I found that if I tuned down from 449.325 (rx freq) to 449.310 I could bring it up. Went back to the site with the service monitor and put it back on frequency. That was 3 weeks ago. A few days ago, can t bring up the repeater. I tried at 449.320. Bingo! There it is. My question Is it normal for a crystal to drift that much over the first month or so? I don t remember having this problem before but it s been a while. No, the building is not climate controlled but is insulated very well and the temperatures have been pretty mild around here lately. Although crystals do age a very small amount, it's not normal for it to move this much. Sounds like some contamination got inside the can. For as much as ICM charges for crystals these days, you should have no problem getting a replacement from them at no charge. Bob NO6B Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Repeater, service monitors and other stuff for sale
I'll take the 742. Can you send me a pic? --- In Repeater-Builder@yahoogroups.com, nickheiniger [EMAIL PROTECTED] wrote: Ham radio items for sale; My father passed away about a year ago, he left me quite a collection of electronic gear and radios. I never really had too much of an interest in the radio or electronics thing like my father did, so I never was licenced and now I really have no use for the items. On top of things, the company that I work for is promoting me but I have to re-locate. Rather than haul this equipment across the country, stuff I dont use anyways, I've decided to sell it to lighten the load. I had a yard sale, sold a pile of the little items like mobile and hand held radios, tuners antennas - even the tower sold. Some of the people that came by told me to post the stuff on E-Bay, others mentioned yahoo groups and others mentioned newsgroups. Since E-Bay charges an arm and a leg, and I need to get this stuff out of here ASAP, I'll try the groups. To make this stuff go quick because I don't have much time to mess around with it, I've priced the stuff cheap to make a quick sale. Also, I'm prefering to use Paypal rather than Money orders, just because of the time issue. As an added bonus, All items SHIP FREE with insurance and a tracking number. You pay just the amount of the item(s) you want. So with that said, here is the list of items. === Yaesu FT-1000MP Mark V HF tranceiver === Beautiful condition, not a scratch, no dust, even comes with a velvet like dust cover that my mother made, includes the manuals, original box, a MD-200 desk microphone and other goodies Shipped for $1300 === Icom IC-706MKIIG HF tranceiver === This radio is also in good condition. This was used in his car, it had some scratches where the mounting bracket attached. Includes the main unit mounting bracket, remote head mount bracket, the cable, a long power cable, original manuals and paperwork, hand microphone and original box. Shipped for $500 === Kenwood TM-V7A FM dual band mobile radio === This radio has a huge blue backlit display. Very nice looking not a scratch on it. It was used as a base radio - not mobile. Includes the power cord, manual, mounting bracket original box and hand microphone. Shipped for $200 === Kenwood TM-742A multiband FM radio === This radio was used in his car also. It has a couple scratches along the sides where the mounting bracket attached. This radio includes the 2 meter, 220 MHZ and 440Mhz modules. It also has the CTCSS module installed. It includes the manuals, original box, long power cord and mounting bracket. Shipped for $500 === SGC 500 HF amplifier === WOW, this this is built. reminds me of something military built. This 500 Watt HF amplifier was in my fathers car. includes the original box, manual and cables to use it with the ICOM IC-706MKIIG. Shipped for $750 === Motorola Radius R100 UHF repeater === Model number Q2904B. 25 watt, UHF. Programmed for 442.350. Includes the service manual, programming cable and a disk with software. Shipped for $200 === Kenwood TK-880 UHF mobile radios === There is 6 of them available. Each has a long power cord, a push button hand microphone, alpha LCD display, can be used for everything from HAM to business to GMRS etc. Maybe even use 2 of them to make a repeater. Shipped for $200 each === pair shipped for $375 === 4 units for $700 === all 6 for $1000 === Kenwood TK-380 UHF handheld radios === There is 6 of them available. Each has 2 batteries, a drop in charger, a short antenna, a hand microphone, a belt clip, alpha display and can be used for everything from HAM to GMRS to business etc. They can do LTR trunking as well as conventional. Shipped for $175 each === pair shipped for $325 === 4 units for $600 === all 6 for $900 === IFR 1500 Comminications Service Monitor === I had some help identifing this unit from a person who stopped by the yard sale. Its a radio tester - 300khz to 1000Mhz, has a signal generator, tracking generator, ocilloscope, spectrum analyzer, power meter and lots more. It has some scratches and wear on the outer case. the front panel is clean and shows little wear. Both of the displays are bright and clear and comes with a AC power cord and a dc power cord and a big manual. Shipped for $1600 === Ramsey COM3 Service monitor === I had some help identifing this unit from a person who stopped by the yard sale. Its another radio tester. This one is just your basic service monitor. 100Khz to 1000Mhz, has a power meter, 7 LED digit display, frequency counter and more. Show a lot of wear on the outer case. The front panel is good though. No manual. Shipped for $500 I can be reached at [EMAIL PROTECTED] Thanks Nick Yahoo! Groups Links * To visit your group on the web, go to:
Re: [Repeater-Builder] Theory versus practice
Ken, In some respects, it's better to have two high-power repeaters very close in frequency, rather than more than 1 MHz apart. Here's my real-life scenario: Two MTR2000 100 watt UHF stations, with Decibel Products DB408L antennas about 12 feet apart. These are elliptical-pattern dipole antennas, and both of their major lobes are facing in the same direction, with their minor lobes looking at each other. The transmit and receive frequencies are 150 kHz apart between the two repeaters, and the TX-RX split is the standard 5 MHz. Both MTR2000 stations come standard with a single circulator, but I am adding a Telewave high performance repeater panel to each machine. This comprises a four-cavity bandpass/bandreject duplexer, a dual isolator, and a dual 8-inch cavity bandpass filter in front of a GaAsfet preamplifier. The key to making this work is that the notching inherent in each repeater's duplexer is just wide enough that it greatly attenuates the TX carrier from the other repeater, if it is close enough, and the bandpass cavities ensure that nothing remains to desense the receiver- even with the preamp. The interfering signal from another repeater is a lot easier to eliminate when it comes over 12 feet of air, than when it is in the same coaxial cable. The triple circulators will prevent intermodulation between the transmitters. Besides, the primary reason for having two repeaters, two duplexers, and two antennas is to make them separate and completely redundant. The last thing in the world I want to do is to invest in a transmitter combiner, where I throw away half of the power from each transmitter, and now have single points of failure (the antenna, the feedline, the hybrid and the hybrid's dummy load) in a position that can bring down both repeaters. My installation may be unusual, but the design rule from the git-go was that there must not be any shared components between the two repeaters. The rule calls for separate solar panels, charge controllers, battery racks, antenna masts, etc. A few years ago, I personally dismantled a Government radio system that was once used for the Space Shuttle program at Vandenberg AFB, which program was later canceled. There were eight 100 watt Micor VHF repeaters combined into one transmit antenna, with the eight receivers being fed from a multicoupler connected to a separate receive antenna. I tested every component after removal, and I found that three of the four 150 watt dummy loads- absolutely CRITICAL components in this combining scheme- were open! It also happens that I was one of the military users of this radio system at the time (mid 80's), and I remember that it never measured up to my expectations for coverage. No wonder; the great mismatch caused by the open loads was making the Micor PAs go into SWR shutdown, and one PA burned up. Instead of 12.5 watts, only 1 or 2 watts was making it to the single antenna. It is ironic that the cause of this system's demise lay abandoned and gathering dust for 15 years until it was discovered purely by accident! 73, Eric Lemmon WB6FLY Ken Arck wrote: Hi folks Imagine this scenario. 2 quality, UHF repeater colocated at the same site. Both repeaters are higher power ( 50) out of duplexers, duplexers are high quality BP/BR types. Here's the kicker - they're spaced 25 Khz away from each other but not inverted from each other. Now, theory is one thing as to the interference potential without resorting to mulicouplers and combiners. But what is the real world problem potential? Anyone want to take a stab at this one? Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html We now offer complete Kenwood TKR repeater packages! AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
