[Repeater-Builder] Need tuning and specs for a Motorola T1507A Band Pass Only UHF Duplexer
Need tuning and specs for a Motorola T1507A Band Pass Only UHF Duplexer. Found some specs, but nothing yet on tuning them the right way. Thank you 73 Kenny KG5KS DEC B AR
[Repeater-Builder] Need tuning and specs for a Sinclair R-312CA UHF Duplexer
Need tuning and specs for a Sinclair R-312CA UHF Duplexer. Thank you 73 Kenny KG5KS DEC B AR
[Repeater-Builder] Zetron 45-48B db9 cable
Talked to Zetron this week and here is the factory version of correct cable, I noted on the 48B manual in file section had a hand written Null cable written in, this will only work on receiving data and not talking to zetron controller. PC RS232 2 3 3 4 5 5 ON PC SIDE cable JUMPER PIN 4 TO 6 AND PIN 7 TO 8 The color code for cable seems to change, so can not give you any help. I just cut the end off and used shrink tubing to seal the wires.Works well. Alex kr6g
RE: [Repeater-Builder] Need tuning and specs for a Motorola T1507A Band Pass Only UHF Duplexer
I Ken, Hook up a watt meter on one side of the can and your radio on the other side set to the desired frequency and tune for max power out. This is a field way to tune it without a service monitor with a tracking generator. Mike _ From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of K Sent: Friday, October 24, 2008 12:47 AM To: Repeater Builder Subject: [Repeater-Builder] Need tuning and specs for a Motorola T1507A Band Pass Only UHF Duplexer Need tuning and specs for a Motorola T1507A Band Pass Only UHF Duplexer. Found some specs, but nothing yet on tuning them the right way. Thank you 73 Kenny KG5KS DEC B AR
RE: [Repeater-Builder] Need tuning and specs for a Sinclair R-312CA UHF Duplexer
Go to the Sinclair web site and you will have to dig but they have the manuals on the site. Mike _ From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of K Sent: Friday, October 24, 2008 12:49 AM To: Repeater Builder Subject: [Repeater-Builder] Need tuning and specs for a Sinclair R-312CA UHF Duplexer Need tuning and specs for a Sinclair R-312CA UHF Duplexer. Thank you 73 Kenny KG5KS DEC B AR
RE: [Repeater-Builder] Need tuning and specs for a Motorola T1507A Band Pass Only UHF Duplexer
This will work, however use a low power setting on the radio and a low power slug in the watt meter. Also, tune each can on a side independently first, then connect the 2 cans with the jumper cable and retune the cans together. If you are changing the tuned freq's. drastically you can refer to the T1500 series manual found on the RB site and make new jumpers cables for your cans based on Motorolas charts. I belive the high side jumpers are slightly shorter then the low side. If you state the freq's your tuning to i can look it up and find it for you in my manual. -- Doug N3DAB/WPRX486/WPJL709 Mike Mullarkey [EMAIL PROTECTED] wrote: = I Ken, Hook up a watt meter on one side of the can and your radio on the other side set to the desired frequency and tune for max power out. This is a field way to tune it without a service monitor with a tracking generator. Mike _ From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of K Sent: Friday, October 24, 2008 12:47 AM To: Repeater Builder Subject: [Repeater-Builder] Need tuning and specs for a Motorola T1507A Band Pass Only UHF Duplexer Need tuning and specs for a Motorola T1507A Band Pass Only UHF Duplexer. Found some specs, but nothing yet on tuning them the right way. Thank you 73 Kenny KG5KS DEC B AR
RE: [Repeater-Builder] seeking executive mobile radio information
That combination number is for a Mastr Progress Line Executive Series mobile radio, which was offered in three low-band splits: A (25-33 MHz), B (33-42 MHz), and C (42-54 MHz). Since your radio is in the middle split, there are some modifications necessary to achieve proper operation at six meters. Unlike later GE radios, this model requires many coils to be changed, along with many capacitors, in order to operate efficiently in the 50-54 MHz band. It will take some effort, but it is do-able. If you have only one crystal for the radio, it will be difficult to first verify that it works on its original frequencies, before starting the modification for 6m. Take note that the B and C splits both use low-side injection for the RX oscillator, but the C split crystal output is tripled while the B split is doubled. The prognosis for a full-duplex modification is not so good. One fellow in my area spent many months trying to convert the same model of radio into a repeater, but could not avoid significant in-cabinet desense, He finally used separate radios for RX and TX, with all power and signal lines filtered, and got it to work. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of kd6aaj Sent: Saturday, October 25, 2008 10:17 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] seeking executive mobile radio information I have a low-band RG64TCN22 GE Executive Mobile, including the slide- on bracket (I used a 10A key to unlock it). According to the LBI list, the maintenance manual I need is LBI-3748. It is not in the LBI section, or on the Wish List. Incidently I DO have LBI-4124 for Master Progressive Line, which is on the Wish List. According to the numbers, this radio is a trunk-mount mobile,12VDC negative ground, 38-64 Watts, 20 MHz channel spacing, 33-42 MHz, 2 freq TX and 2 freq RX. I don't have the control head, but the inside is sparkling clean, no dust, corrosion or any other signs of physical damage! The one crystal in it reads 43 MHz. It has 2 tubes in the PA. I got it in 1993 as a left-over from the 2-way shop I used to work in. If I can get it to work, I could make a 6 meter repeater out of it. Does anyone have info on this beast? 73, KD6AAJ
[Repeater-Builder] TX RX Boards
Does anybody know where on can obtain new TX RX boards that are programmable that have pl and all the necessary connections. These need to be UHF and VHF if at all possible. Colorado Telecom, L.L.C Mike Mullarkey 6886 Sage Ave Firestone, Co 80504 303-954-9695 Home 303-954-9693 Home Office Fax 303-718-8052 Cellular
RE: [Repeater-Builder] TX RX Boards
Mike, Hamtronics offers a selection of programmable exciters and receivers, some of which meet commercial specs. Go here: www.hamtronics.com 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Mike Mullarkey Sent: Sunday, October 26, 2008 10:23 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] TX RX Boards Does anybody know where one can obtain new TX RX boards that are programmable that have pl and all the necessary connections. These need to be UHF and VHF if at all possible. Colorado Telecom, L.L.C Mike Mullarkey 6886 Sage Ave Firestone, Co 80504 303-954-9695 Home 303-954-9693 Home Office Fax 303-718-8052 Cellular
[Repeater-Builder] MSR 2000 PA okay cranked down?
Will a UHF MSR 2000 TLE2283B intermittent-duty PA play nice cranked back to 30 - 40 watts, or will it go spurious on me? Inquiring minds want to know. George, KA3HSW / WQGJ413
RE: [Repeater-Builder] MSR 2000 PA okay cranked down?
George, The MSR2000 manual specs the TLE2283B as variable between 45 and 100 watts. You're taking a chance to run it below 45 watts, especially if it is feeding a reactive load. The specs assume a stable 50 ohm load. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of George Henry Sent: Sunday, October 26, 2008 1:48 PM To: repeater-builder@yahoogroups.com Subject: [Repeater-Builder] MSR 2000 PA okay cranked down? Will a UHF MSR 2000 TLE2283B intermittent-duty PA play nice cranked back to 30 - 40 watts, or will it go spurious on me? Inquiring minds want to know. George, KA3HSW / WQGJ413
[Repeater-Builder] DB antenna question
I'm running out of usable antenna mounting space here and was wondering if anyone has tried to do the folloing and with what results : 1. Superimpose a complete set of DB420 elements with the harness on a DB224 antenna mast, where both antennas arrays were active and each fed by its own rptr./duplexer. The elements on each band would be offset 90 degrees from each other. 2. Split a DB420 and feed the top half and bottom half independently with separate feedlines,rptrs and duplexers. I realize I would lose some antenna gain (9.2 Db to 6 Db) and some filter cavities for each system might be required. 3. Super impose a second set of DB420 elements, with independet feed line, on an existing DB420 antenna, but offset 90 degrees from the original set. If combining antennas as posed above is practical then I could gain additional space for 1 or more additional rptr's. or at least I could make the site look a little less cluttered. Thanks in advance for any constructive comments. Doug N3DAB/WPRX486/WPJL709
[Repeater-Builder] Switch to DTV
About the Switch to DTV I dont like to post off Topic but I had to share this it will effect us all . http://snipurl.com/4m31v Enjoy PS A Lot of People are Watching so it Loads Slow ,And on a lighter Note as Repeater Builders We might actually have the need to Help some of our eldery understand Don KA9QJG
Re: [Repeater-Builder] Switch to DTV
At 11:45 10/23/2008, Don wrote: About the Switch to DTV I dont like to post off Topic but I had to share this it will effect us all . http://snipurl.com/4m31v Enjoy PS A Lot of People are Watching so it Loads Slow ,And on a lighter Note as Repeater Builders We might actually have the need to Help some of our eldery understand And your point is? Don KA9QJG Yahoo! Groups Links No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.175 / Virus Database: 270.8.3/1747 - Release Date: 10/26/2008 9:27 AM -- Dave Gomberg, San Francisco NE5EE gomberg1 at wcf dot com All addresses, phones, etc. at http://www.wcf.com/ham/info.html -
[Repeater-Builder] Decibel DB-4081 mods????
Hello All- I have found hidden in the shack, a Decibel DB-4081 4 can duplexer. It is labeled as being tuned to 460.35 / 465.35. Can these cans be modified to work in the 440-450 range for ham use? I am working on building a D-STAR system and this will save me a bunch of money if they can work. Thanks for the help:) 73 - Ken - N7QQU
[Repeater-Builder] Zetron 45 48B programing
Having a hard time understanding how to program these, I would like to be able to read the 45 and put that info in the 48b, I know the software is different, so will have to retype the settings. All I would like to do is use the 45 or 48 as a two or three tone encoder, decoder. Not using the patch portion. I'm way over my head in this project, so would appreciate any and all help, it is going into a motorola micor repeater for a friend. Alex kr6g
Re: [Repeater-Builder] Switch to DTV
Can you just imagine what would happen if she cuts the AC power cord instead of the coax? I'll be waiting to read about all of the lawsuits happening. Don, KD9PT - Original Message - From: Don [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Thursday, October 23, 2008 12:45 PM Subject: [Repeater-Builder] Switch to DTV About the Switch to DTV I dont like to post off Topic but I had to share this it will effect us all . http://snipurl.com/4m31v Enjoy PS A Lot of People are Watching so it Loads Slow ,And on a lighter Note as Repeater Builders We might actually have the need to Help some of our eldery understand Don KA9QJG Yahoo! Groups Links
Re: [Repeater-Builder] MSR 2000 PA okay cranked down?
Well, it's going on GMRS, so I can go as high as 50 watts... Thanks. - Original Message - From: Eric Lemmon [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Sunday, October 26, 2008 4:06 PM Subject: RE: [Repeater-Builder] MSR 2000 PA okay cranked down? George, The MSR2000 manual specs the TLE2283B as variable between 45 and 100 watts. You're taking a chance to run it below 45 watts, especially if it is feeding a reactive load. The specs assume a stable 50 ohm load. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of George Henry Sent: Sunday, October 26, 2008 1:48 PM To: repeater-builder@yahoogroups.com Subject: [Repeater-Builder] MSR 2000 PA okay cranked down? Will a UHF MSR 2000 TLE2283B intermittent-duty PA play nice cranked back to 30 - 40 watts, or will it go spurious on me? Inquiring minds want to know. George, KA3HSW / WQGJ413
