Re: [Repeater-Builder] M1225 programming problem
I think Eric and I said exactly the same thing, but my explanation was looking into the radio while Eric's was looking at the business end of the cable. I would NOT recommend any RIB-less cable. Most are powered by the serial port, and some RSS programs don't activate the proper handshaking lines to power the electronics, so it won't work. Other units have the ability to be powered externally; these usually WILL work properly. I'd suggest you try the following experiment: 1. with nothing plugged into the MIC jack, turn the radio on. 2. unplug the RIB cable from everything. 3. plug the RJ45 end of the RIB cable into the radio. NOTHING SHOULD HAPPEN. If the radio transmits at this point, your RIB cable is defective as it's grounding the PTT line. It could also be a short at the RJ45 connector. 4. make sure the RIB is turned off. 5. plug the DB25 end of the RIB cable into the RIB. NOTHING SHOULD HAPPEN. If the radio transmits at this point, you've got more than two wires connected on your RIB cable, including PTT. 6. turn the RIB on. NOTHING SHOULD HAPPEN. If the radio transmits at this point, then you've still got more than two wires connected in your RIB cable. PTT is on pin 6, which is right next to the programming line on pin 7. Verify the wire colors. Use an ohm-meter to make sure you're only using pins 4 and 7 in your RIB cable and make sure pin 6 doesn't go to anything. Bob M. == --- On Fri, 2/6/09, Jeff Clark je...@cruzio.com wrote: From: Jeff Clark je...@cruzio.com Subject: Re: [Repeater-Builder] M1225 programming problem To: Repeater-Builder@yahoogroups.com Date: Friday, February 6, 2009, 9:22 PM Thanks to Bob and Eric for the quick responses. Their descriptions match the batlabs diagram exactly. I've checked everything again, but still have the same problem with the PTT going active, even when powered up in the sequence recommended by Bob :-( I may have to break down and buy one of those rib-less cables on ebay afterall. --jeff At 04:20 PM 2/6/2009, Bob M. wrote: When you are plugging an RJ45 connector into the MIC jack, the tab will either be on the right or on the bottom. If it's on the right, the uppermost pin is #1. If the tab is on the bottom, the rightmost pin is #1. If the MIC jack is oriented some other way, make the appropriate adjustments. Note that this pin numbering may not match any other cable you have, but that's the way Motorola numbers them for a lot of their radios and the pin numbers given below correspond to this orientation. Ground is pin 4. The programming line is pin 7. Those are the only two wires you need for programming purposes. If you crimped all 8 wires into the RJ45 connector, check the other wires at the other end of the cable and make sure they're all clearly insulated and not attached to anything. Also, make sure you connect the cable to the RIB and power up the RIB before plugging the RJ45 connector into the radio. The radio can be turned on before or after you plug the RIB cable into it. Bob M. == --- On Thu, 2/5/09, Jeff Clark je...@cruzio.com wrote: From: Jeff Clark je...@cruzio.com Subject: [Repeater-Builder] M1225 programming problem To: Repeater-Builder@yahoogroups.com Date: Thursday, February 5, 2009, 9:22 PM Hope this is the correct group for this kind of question. I'm trying to program two m1225 UHF mobiles with a Polaris PA-II rib and a cable assembled per the batlabs cable page (listed same as GM300). I've checked and double checked the connections on both ends and made sure the tab on the rj45 end is oriented according to the diagram, but when I plug it in to the mic jack and turn on the rib, the radio keys up and stays keyed until I kill the power or pull the plug. I've tried this on both radios with the same result, and I've programmed my P1225s with the same rib, so I'm wondering if the pinout on the rj45 jack is wrong. Are there additional pinouts beside the one listed on the batlabs page? thanks, --jeff, kf6bkg
[Repeater-Builder] WTB - Several items
Our repeater group is looking for a vendor that has IN STOCK a db224JJ. Our point person has called several folks...and nothing so far (not sure which ones...open for suggestions). Any vendors here? Contact me direct if you have one. Also not sure if we can buy used since this is going thru a grant. Have to check. Also looking for a commercial sway bar to go on a GB-98. Any suggestions. Going on one of the large Rohn towers (does SVVC sound right?). It will be at the 250' mark on the 300' tower...so really not sure diameter. I know it is not the 5 round leg...or whatever it is at the bottom. Again, vendors...contact me direct if you have one. Thanks, Robert Burton KD4YDC DEC NWS / (Skywarn - WX4PTC) Peachtree City, GA
Re: [Repeater-Builder] Johnson vhf crystal repeater part number
its a ,motorola part number may be multicoupler send pic if you haven't tossed the thing yet . mdm Ted Bleiman K9MDM MDM Radio If its in stock...we've got it! P O Box 31353 Chicago, IL 60631-0353 773.631.5130 fax 773.775.8096 web http://www.mdmradio.com email - mdmra...@yahoo.com DIRECT ALL EMAIL --- On Fri, 2/6/09, NORM KNAPP nkn...@twowayradio.net wrote: From: NORM KNAPP nkn...@twowayradio.net Subject: Re: [Repeater-Builder] Johnson vhf crystal repeater part number To: Repeater-Builder@yahoogroups.com Date: Friday, February 6, 2009, 10:18 AM Weird, I am almost certain that I pulled it from a johson. Can you tell me what it is supposed to be from a motorola point of veiw? - Original Message - From: Repeater-Builder@ yahoogroups. com Repeater-Builder@ yahoogroups. com To: Repeater-Builder@ yahoogroups. com Repeater-Builder@ yahoogroups. com Sent: Fri Feb 06 10:06:28 2009 Subject: Re: [Repeater-Builder] Johnson vhf crystal repeater part number NORM KNAPP wrote: Hi, I got a preselector from a vhf johnson repeater. It has 9 slugs in it and 4 RCA jacks on it. It appears to have a built in preamp also. Is that what it is? Does it have a built in preamp or is that a mixer? Part number is TLE8023APR. Thanks! 73 de N5NPO Norm That part number is a Motorola number, not EFJ. But you're right, it is probably a mixer, not a preamp.
Re: [possible spam] Re: [Repeater-Builder] Johnson vhf crystal repeater part number
I tossed it. I was looking for a preselector for a repeater project. No big deal. I did think those numbers looked suspiciousl motorolian. - Original Message - From: Repeater-Builder@yahoogroups.com Repeater-Builder@yahoogroups.com To: Repeater-Builder@yahoogroups.com Repeater-Builder@yahoogroups.com Sent: Sat Feb 07 08:53:25 2009 Subject: [possible spam] Re: [Repeater-Builder] Johnson vhf crystal repeater part number its a ,motorola part number may be multicoupler send pic if you haven't tossed the thing yet . mdm Ted Bleiman K9MDM MDM Radio If its in stock...we've got it! P O Box 31353 Chicago, IL 60631-0353 773.631.5130 fax 773.775.8096 web http://www.mdmradio.com http://www.mdmradio.com/ email - mailto:mdm...@yahoo.com mdmra...@yahoo.com mailto:mdmra...@yahoo.com DIRECT ALL EMAIL --- On Fri, 2/6/09, NORM KNAPP nkn...@twowayradio.net wrote: From: NORM KNAPP nkn...@twowayradio.net Subject: Re: [Repeater-Builder] Johnson vhf crystal repeater part number To: Repeater-Builder@yahoogroups.com Date: Friday, February 6, 2009, 10:18 AM Weird, I am almost certain that I pulled it from a johson. Can you tell me what it is supposed to be from a motorola point of veiw? - Original Message - From: Repeater-Builder@ yahoogroups. com mailto:Repeater-Builder%40yahoogroups.com Repeater-Builder@ yahoogroups. com mailto:Repeater-Builder%40yahoogroups.com To: Repeater-Builder@ yahoogroups. com mailto:Repeater-Builder%40yahoogroups.com Repeater-Builder@ yahoogroups. com mailto:Repeater-Builder%40yahoogroups.com Sent: Fri Feb 06 10:06:28 2009 Subject: Re: [Repeater-Builder] Johnson vhf crystal repeater part number NORM KNAPP wrote: Hi, I got a preselector from a vhf johnson repeater. It has 9 slugs in it and 4 RCA jacks on it. It appears to have a built in preamp also. Is that what it is? Does it have a built in preamp or is that a mixer? Part number is TLE8023APR. Thanks! 73 de N5NPO Norm That part number is a Motorola number, not EFJ. But you're right, it is probably a mixer, not a preamp.
Re: [Repeater-Builder] Re: Hamtronics Helical Resonator Preamp or Advanced Research Preamp
On Feb 4, 2009, at 9:16 PM, Bob Ricci wrote: My only thought that was as a preselector the Hamtronics might have something to offer. As I said, the Angle Linear is on the top of the list, but the piggy bank is getting low. The Decibel Product DB-4002 with a 10dB preamp will do for now. If my wife doesn't toss me and the repeater out soon :) How 'bout asking the users with puny radios to pitch in? They can't afford a mobile rig, or better antennas for their HT's, I know... but maybe five or six of them together could afford a pre-amp? ;-) Nate WY0X
[Repeater-Builder] GE MVP time capsule
Breaker channel one-nine...
Hey, here's a time capsule..!
Very pretty pictures of this lost in time hardware.
GE Custom MVP UHF Repeater Complete
New - never used Factory Built portable repeater
Ebay Item number: 260355772965
enjoy looking...
cheers,
s.
(I have nothing to do with the auction other than mentioning
it here).
[Repeater-Builder] Micor Exciter TLD5803 BPR Securenet
Hi there! I'm playing with a Securenet VHF Micor repeater and moving down to the 146. This unit I believe was running around 164. I've played with the exciter and I believe it is to far out of range to work down at 146. Is it safe to assume that in the model number of TLD5803 that I should be looking for at 5801, or maybe a mid range 5802? I'm OK on the RX side so far. Being Securenet, I'm not as sure on all the numbers, but I have lots of old Micor boards to put in, but I'd like to try to keep it secure, if possible. Any Securenet pro's out there? Incase you should ask the cards are: DVP ENCODE MOD, SECURENET PROCESSOR, SECURENET DECODER, 4 FREQ CONTROL MODULAR, SQ GATE, GUARD TONE DECODER, F1 PL CONTROLER, TIME OUT, SECURENET STATION CONTROLER, AND LINE DRIVER. Any ideas? 73, Brian WD9HSY **Who's never won? Biggest Grammy Award surprises of all time on AOL Music. (http://music.aol.com/grammys/pictures/never-won-a-grammy?ncid=emlcntusmusi0003)
Re: [Repeater-Builder] GE MVP time capsule
Lost in time? I've got a bunch of MVP's still in use. One of my favorite radios. Hams were making repeaters out of them way before the GE factory started doing it. Chuck WB2EDV - Original Message - From: skipp025 skipp...@yahoo.com To: Repeater-Builder@yahoogroups.com Sent: Saturday, February 07, 2009 11:52 AM Subject: [Repeater-Builder] GE MVP time capsule Breaker channel one-nine... Hey, here's a time capsule..! Very pretty pictures of this lost in time hardware. GE Custom MVP UHF Repeater Complete New - never used Factory Built portable repeater Ebay Item number: 260355772965 enjoy looking... cheers, s. (I have nothing to do with the auction other than mentioning it here).
[Repeater-Builder] Re: GE MVP time capsule
Same here Chuck, But... (there's always a but somewhere) Do you have any original MVP Repeaters that have never been used or in pretty much brand new condition? cheers, s. Chuck Kelsey wb2...@... wrote: Lost in time? I've got a bunch of MVP's still in use. One of my favorite radios. Hams were making repeaters out of them way before the GE factory started doing it. From: skipp025 skipp...@... Hey, here's a time capsule..! GE Custom MVP UHF Repeater Complete New - never used Factory Built portable repeater Ebay Item number: 260355772965
Re: [Repeater-Builder] Micor Exciter TLD5803 BPR Securenet
bbe...@aol.com wrote: Hi there! I'm playing with a Securenet VHF Micor repeater and moving down to the 146. This unit I believe was running around 164. I've played with the exciter and I believe it is to far out of range to work down at 146. I'd bet it will tune down. Make sure you follow the procedure in the manual. Is it safe to assume that in the model number of TLD5803 that I should be looking for at 5801, or maybe a mid range 5802? I'm OK on the RX side so far. Or, send the one you have to me and I'll convert it for you: http://www.repeater-builder.com/rbtip/hs-coilinstructions.html The Holiday Special is going to remain in effect for some time. Kevin Custer
Re: [Repeater-Builder] Re: GE MVP time capsule
Oh heavens no. It's a sin to have GE equipment sitting around unused. Someone should have been strung up for letting that repeater sit in a box all that time. Chuck - Original Message - From: skipp025 skipp...@yahoo.com To: Repeater-Builder@yahoogroups.com Sent: Saturday, February 07, 2009 12:50 PM Subject: [Repeater-Builder] Re: GE MVP time capsule Same here Chuck, But... (there's always a but somewhere) Do you have any original MVP Repeaters that have never been used or in pretty much brand new condition? cheers, s.
Re: [Repeater-Builder] GE MVP time capsule
At 2/7/2009 08:52, you wrote: Breaker channel one-nine... Hey, here's a time capsule..! Very pretty pictures of this lost in time hardware. GE Custom MVP UHF Repeater Complete New - never used Factory Built portable repeater Ebay Item number: 260355772965 enjoy looking... cheers, s. Interesting how G.E. ran the RX coax out a hole in the back, almost just like how I do my duplex mods (I pop the hole off to the right of the TX connector). Bob NO6B
[Repeater-Builder] New Equipment - never installed
Happens all the time... In the last month or two I was made aware of a large warehouse size amount of new in box Motorola Spectra, Midland Base-Tech and even a fairly large number original Midland Syntech radios that will probably never see action until sold off to the surplus market. Lots of tax dollar sin out there ... and no, there's no way (yet) to access/purchase the mentioned above NOS radios. cheers, s. Chuck Kelsey wb2...@... wrote: It's a sin to have GE equipment sitting around unused. Someone should have been strung up for letting that repeater sit in a box all that time. Chuck
[Repeater-Builder] Re: GE MVP output power level
The auction listing mentions that original MVP Repeater has only a few watts output. I seem to remember the original MVP repeater PA being rated about 2.5 to 3.5 watts output? Bob and Chuck, Are you guys turning down the output power on your conversion MVP (radio to) Repeaters? ... or running near/at the nominal radio RF output level without major internal cabinet de-sense problems? s. n...@... wrote: Interesting how G.E. ran the RX coax out a hole in the back, almost just like how I do my duplex mods (I pop the hole off to the right of the TX connector).
Re: [Repeater-Builder] GE MVP time capsule
GE must have made loads of those little 3-5W UHF MVP Repeaters. I always see them for sale at Dayton, many times at our local hamfests and surplus stores, and they're often for sale on ebay. I found the factory service manual on ebay many years ago, and picked it up just to see how they made their factory version with the installed Parkinson repeater controller. LJ -Original Message- From: n...@no6b.com Sent: Feb 7, 2009 10:11 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] GE MVP time capsule At 2/7/2009 08:52, you wrote: Breaker channel one-nine... Hey, here's a time capsule..! Very pretty pictures of this lost in time hardware. GE Custom MVP UHF Repeater Complete New - never used Factory Built portable repeater Ebay Item number: 260355772965 enjoy looking... cheers, s. Interesting how G.E. ran the RX coax out a hole in the back, almost just like how I do my duplex mods (I pop the hole off to the right of the TX connector). Bob NO6B
RE: [Repeater-Builder] M1225 programming problem
Jeff, I'll ask, even though I have not fully researched the BatLabs cable before posting this inquiry. Is the BatLabs cable meant to be used with a RIB or by itself? (I know some cables are constructed/designed to be directly connected to the serial port.) Also, if it designed to be used with a RIB, does the Polaris box have the same pinouts as the Motorola RIB? This may be where the fly in the ointment lies. FWIW - I also use the Polaris PA-II RIB, but I buy their cables to use along with it. I know they are expensive, but having experienced Polaris' warranty service (and having been VERY pleased with it!) I'm willing to spend the extra bucks to get the quality. I have not tried to use an aftermarket non-Polaris cable, Motorola cable, or a homebrew cable, with the Polaris RIB. Just my thoughts. Mark - N9WYS From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Jeff Clark Sent: Friday, February 06, 2009 8:22 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] M1225 programming problem Thanks to Bob and Eric for the quick responses. Their descriptions match the batlabs diagram exactly. I've checked everything again, but still have the same problem with the PTT going active, even when powered up in the sequence recommended by Bob :-( I may have to break down and buy one of those rib-less cables on ebay afterall. --jeff At 04:20 PM 2/6/2009, Bob M. wrote: When you are plugging an RJ45 connector into the MIC jack, the tab will either be on the right or on the bottom. If it's on the right, the uppermost pin is #1. If the tab is on the bottom, the rightmost pin is #1. If the MIC jack is oriented some other way, make the appropriate adjustments. Note that this pin numbering may not match any other cable you have, but that's the way Motorola numbers them for a lot of their radios and the pin numbers given below correspond to this orientation. Ground is pin 4. The programming line is pin 7. Those are the only two wires you need for programming purposes. If you crimped all 8 wires into the RJ45 connector, check the other wires at the other end of the cable and make sure they're all clearly insulated and not attached to anything. Also, make sure you connect the cable to the RIB and power up the RIB before plugging the RJ45 connector into the radio. The radio can be turned on before or after you plug the RIB cable into it. Bob M. == --- On Thu, 2/5/09, Jeff Clark je...@cruzio.com mailto:jefco%40cruzio.com wrote: From: Jeff Clark je...@cruzio.com mailto:jefco%40cruzio.com Subject: [Repeater-Builder] M1225 programming problem To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Date: Thursday, February 5, 2009, 9:22 PM Hope this is the correct group for this kind of question. I'm trying to program two m1225 UHF mobiles with a Polaris PA-II rib and a cable assembled per the batlabs cable page (listed same as GM300). I've checked and double checked the connections on both ends and made sure the tab on the rj45 end is oriented according to the diagram, but when I plug it in to the mic jack and turn on the rib, the radio keys up and stays keyed until I kill the power or pull the plug. I've tried this on both radios with the same result, and I've programmed my P1225s with the same rib, so I'm wondering if the pinout on the rj45 jack is wrong. Are there additional pinouts beside the one listed on the batlabs page? thanks, --jeff, kf6bkg No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.0.233 / Virus Database: 270.10.19/1939 - Release Date: 02/07/09 13:39:00 image001.jpg
RE: [Repeater-Builder] GE MVP time capsule
Larry, What is the LBI number on that manual? Please consider lending it to the RB staff for scanning and posting for all to use and enjoy. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of larryjspamme...@teleport.com Sent: Saturday, February 07, 2009 10:30 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] GE MVP time capsule GE must have made loads of those little 3-5W UHF MVP Repeaters. I always see them for sale at Dayton, many times at our local hamfests and surplus stores, and they're often for sale on ebay. I found the factory service manual on ebay many years ago, and picked it up just to see how they made their factory version with the installed Parkinson repeater controller. LJ -Original Message- From: n...@no6b.com mailto:no6b%40no6b.com Sent: Feb 7, 2009 10:11 AM To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Subject: Re: [Repeater-Builder] GE MVP time capsule At 2/7/2009 08:52, you wrote: Breaker channel one-nine... Hey, here's a time capsule..! Very pretty pictures of this lost in time hardware. GE Custom MVP UHF Repeater Complete New - never used Factory Built portable repeater Ebay Item number: 260355772965 enjoy looking... cheers, s. Interesting how G.E. ran the RX coax out a hole in the back, almost just like how I do my duplex mods (I pop the hole off to the right of the TX connector). Bob NO6B
RE: [Repeater-Builder] M1225 programming problem
Jeff, Yes, the cable shown on Batlabs must be used with the Motorola RIB. The pinout on the RIB end may not match boxes made by other vendors such as Polaris. The jumper you see on the RIB end establishes a bias voltage on the SCI (Bus +) line, and some aftermarket RIB clones do not use precision resistors and therefore result in the wrong bias voltage. The bias voltage must be very close to work properly. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Mark Sent: Saturday, February 07, 2009 10:31 AM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] M1225 programming problem Jeff, I'll ask, even though I have not fully researched the BatLabs cable before posting this inquiry. Is the BatLabs cable meant to be used with a RIB or by itself? (I know some cables are constructed/designed to be directly connected to the serial port.) Also, if it designed to be used with a RIB, does the Polaris box have the same pinouts as the Motorola RIB? This may be where the fly in the ointment lies. FWIW - I also use the Polaris PA-II RIB, but I buy their cables to use along with it. I know they are expensive, but having experienced Polaris' warranty service (and having been VERY pleased with it!) I'm willing to spend the extra bucks to get the quality. I have not tried to use an aftermarket non-Polaris cable, Motorola cable, or a homebrew cable, with the Polaris RIB. Just my thoughts. Mark - N9WYS From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Jeff Clark Sent: Friday, February 06, 2009 8:22 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] M1225 programming problem Thanks to Bob and Eric for the quick responses. Their descriptions match the batlabs diagram exactly. I've checked everything again, but still have the same problem with the PTT going active, even when powered up in the sequence recommended by Bob :-( I may have to break down and buy one of those rib-less cables on ebay afterall. --jeff At 04:20 PM 2/6/2009, Bob M. wrote: When you are plugging an RJ45 connector into the MIC jack, the tab will either be on the right or on the bottom. If it's on the right, the uppermost pin is #1. If the tab is on the bottom, the rightmost pin is #1. If the MIC jack is oriented some other way, make the appropriate adjustments. Note that this pin numbering may not match any other cable you have, but that's the way Motorola numbers them for a lot of their radios and the pin numbers given below correspond to this orientation. Ground is pin 4. The programming line is pin 7. Those are the only two wires you need for programming purposes. If you crimped all 8 wires into the RJ45 connector, check the other wires at the other end of the cable and make sure they're all clearly insulated and not attached to anything. Also, make sure you connect the cable to the RIB and power up the RIB before plugging the RJ45 connector into the radio. The radio can be turned on before or after you plug the RIB cable into it. Bob M. == --- On Thu, 2/5/09, Jeff Clark je...@cruzio.com mailto:jefco%40cruzio.com wrote: From: Jeff Clark je...@cruzio.com mailto:jefco%40cruzio.com Subject: [Repeater-Builder] M1225 programming problem To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Date: Thursday, February 5, 2009, 9:22 PM Hope this is the correct group for this kind of question. I'm trying to program two m1225 UHF mobiles with a Polaris PA-II rib and a cable assembled per the batlabs cable page (listed same as GM300). I've checked and double checked the connections on both ends and made sure the tab on the rj45 end is oriented according to the diagram, but when I plug it in to the mic jack and turn on the rib, the radio keys up and stays keyed until I kill the power or pull the plug. I've tried this on both radios with the same result, and I've programmed my P1225s with the same rib, so I'm wondering if the pinout on the rj45 jack is wrong. Are there additional pinouts beside the one listed on the batlabs page? thanks, --jeff, kf6bkg No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.0.233 / Virus Database: 270.10.19/1939 - Release Date: 02/07/09 13:39:00
Re: [Repeater-Builder] Re: GE MVP output power level
I'm not running any MVP's in duplex - they are in service as either link radios or monitor receivers. However, I've used Exec II's without backing them down much (reduced due to heat considerations). Chuck - Original Message - From: skipp025 skipp...@yahoo.com To: Repeater-Builder@yahoogroups.com Sent: Saturday, February 07, 2009 1:27 PM Subject: [Repeater-Builder] Re: GE MVP output power level The auction listing mentions that original MVP Repeater has only a few watts output. I seem to remember the original MVP repeater PA being rated about 2.5 to 3.5 watts output? Bob and Chuck, Are you guys turning down the output power on your conversion MVP (radio to) Repeaters? ... or running near/at the nominal radio RF output level without major internal cabinet de-sense problems? s.
Re: [Repeater-Builder] Re: GE MVP output power level
I have built many MVP repeaters using the NHRC MVP controller. I always test the repeater with full output power. I have never witnessed any in cabinet desense with any MVP conversion I have done, no matter VHF at .6 MHz or UHF at 5 MHz separation. Now, I wouldn't recommend running them that way in repeater duty, but we are talking about in-cabinet desensitization, not how long the PA will last. Kevin Chuck Kelsey wrote: I'm not running any MVP's in duplex - they are in service as either link radios or monitor receivers. However, I've used Exec II's without backing them down much (reduced due to heat considerations). Chuck The auction listing mentions that original MVP Repeater has only a few watts output. I seem to remember the original MVP repeater PA being rated about 2.5 to 3.5 watts output? Bob and Chuck, Are you guys turning down the output power on your conversion MVP (radio to) Repeaters? ... or running near/at the nominal radio RF output level without major internal cabinet de-sense problems?
[Repeater-Builder] Decibel folded dipole
Hi all I am looking for someone that may have modified a Decibel four bay folded dipole antenna to operate in the UHF hamband. I'm not sure if the one I have is 450-470 or the lower UHF 420 type there is no tag on this one. Thanks in advance Mike
RE: [Repeater-Builder] Decibel folded dipole
Mike , I had a Similar Question My is made By DB But had a Mot Tag on it , I was told to just Try it and check the Swr it was about a 1.8 So the advice I got was to just use it and I did and it works Fine , it is a Very Well made ant . Answers still should be in the files Good Luck Don KA9QJG
RE: [Repeater-Builder] Decibel folded dipole
What is the length of one of the dipole loops from top of the bottom? Measure straight across each arc from inside edge of one to the outside edge of another or, give center-to-center measurement. Also measure the length of the pigtail on that same loop to the center of the molded Y splitter. Lastly, specify which loop you measured (top, second loop down from top, etc.) Gary N6LRV -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of mike Sent: Saturday, February 07, 2009 3:00 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Decibel folded dipole Hi all I am looking for someone that may have modified a Decibel four bay folded dipole antenna to operate in the UHF hamband. I'm not sure if the one I have is 450-470 or the lower UHF 420 type there is no tag on this one. Thanks in advance Mike Yahoo! Groups Links
Re: [Repeater-Builder] Decibel folded dipole
The overall length of one element for 450-470 MHz should be about 11-3/16 The overall length of one element for 406-420 MHz should be about 12-1/2 Chuck WB2EDV - Original Message - From: mike m...@verizon.net To: Repeater-Builder@yahoogroups.com Sent: Saturday, February 07, 2009 6:00 PM Subject: [Repeater-Builder] Decibel folded dipole Hi all I am looking for someone that may have modified a Decibel four bay folded dipole antenna to operate in the UHF hamband. I'm not sure if the one I have is 450-470 or the lower UHF 420 type there is no tag on this one. Thanks in advance Mike
Re: [Repeater-Builder] Decibel folded dipole
Question is that the Length Before the Element is Bent? or is that already bent measurinf from Tip to tip? --- On Sat, 2/7/09, Chuck Kelsey wb2...@roadrunner.com wrote: From: Chuck Kelsey wb2...@roadrunner.com Subject: Re: [Repeater-Builder] Decibel folded dipole To: Repeater-Builder@yahoogroups.com Date: Saturday, February 7, 2009, 6:23 PM The overall length of one element for 450-470 MHz should be about 11-3/16 The overall length of one element for 406-420 MHz should be about 12-1/2 Chuck WB2EDV - Original Message - From: mike m...@verizon.net To: Repeater-Builder@yahoogroups.com Sent: Saturday, February 07, 2009 6:00 PM Subject: [Repeater-Builder] Decibel folded dipole Hi all I am looking for someone that may have modified a Decibel four bay folded dipole antenna to operate in the UHF hamband. I'm not sure if the one I have is 450-470 or the lower UHF 420 type there is no tag on this one. Thanks in advance Mike Yahoo! Groups Links
Re: [Repeater-Builder] Decibel folded dipole
Tip to tip of the element. - Original Message - From: neal Newman cozy...@yahoo.com To: Repeater-Builder@yahoogroups.com Sent: Saturday, February 07, 2009 6:34 PM Subject: Re: [Repeater-Builder] Decibel folded dipole Question is that the Length Before the Element is Bent? or is that already bent measurinf from Tip to tip? --- On Sat, 2/7/09, Chuck Kelsey wb2...@roadrunner.com wrote: From: Chuck Kelsey wb2...@roadrunner.com Subject: Re: [Repeater-Builder] Decibel folded dipole To: Repeater-Builder@yahoogroups.com Date: Saturday, February 7, 2009, 6:23 PM The overall length of one element for 450-470 MHz should be about 11-3/16 The overall length of one element for 406-420 MHz should be about 12-1/2 Chuck WB2EDV - Original Message - From: mike m...@verizon.net To: Repeater-Builder@yahoogroups.com Sent: Saturday, February 07, 2009 6:00 PM Subject: [Repeater-Builder] Decibel folded dipole Hi all I am looking for someone that may have modified a Decibel four bay folded dipole antenna to operate in the UHF hamband. I'm not sure if the one I have is 450-470 or the lower UHF 420 type there is no tag on this one. Thanks in advance Mike Yahoo! Groups Links Yahoo! Groups Links
[Repeater-Builder] Re: M1225 programming problem
--- In Repeater-Builder@yahoogroups.com, Jeff Clark je...@... wrote: Hope this is the correct group for this kind of question. I'm trying to program two m1225 UHF mobiles with a Polaris PA-II rib and a cable assembled per the batlabs cable page (listed same as GM300). I've checked and double checked the connections on both ends and made sure the tab on the rj45 end is oriented according to the diagram, but when I plug it in to the mic jack and turn on the rib, the radio keys up and stays keyed until I kill the power or pull the plug. I've tried this on both radios with the same result, and I've programmed my P1225s with the same rib, so I'm wondering if the pinout on the rj45 jack is wrong. Are there additional pinouts beside the one listed on the batlabs page? thanks, --jeff, kf6bkg The diagram on batlabs is a little screwy. I started a big ugly thread on this years ago: http://batboard.batlabs.com/viewtopic.php?t=5955 James K7ICU
[Repeater-Builder] Re: Decibel folded dipole
--- In Repeater-Builder@yahoogroups.com, Chuck Kelsey wb2...@... wrote: Shouldn't the length of the phasing harness also be adjusted? Tip to tip of the element. - Original Message - From: neal Newman cozy...@... To: Repeater-Builder@yahoogroups.com Sent: Saturday, February 07, 2009 6:34 PM Subject: Re: [Repeater-Builder] Decibel folded dipole Question is that the Length Before the Element is Bent? or is that already bent measurinf from Tip to tip? --- On Sat, 2/7/09, Chuck Kelsey wb2...@... wrote: From: Chuck Kelsey wb2...@... Subject: Re: [Repeater-Builder] Decibel folded dipole To: Repeater-Builder@yahoogroups.com Date: Saturday, February 7, 2009, 6:23 PM The overall length of one element for 450-470 MHz should be about 11-3/16 The overall length of one element for 406-420 MHz should be about 12-1/2 Chuck WB2EDV - Original Message - From: mike m...@... To: Repeater-Builder@yahoogroups.com Sent: Saturday, February 07, 2009 6:00 PM Subject: [Repeater-Builder] Decibel folded dipole Hi all I am looking for someone that may have modified a Decibel four bay folded dipole antenna to operate in the UHF hamband. I'm not sure if the one I have is 450-470 or the lower UHF 420 type there is no tag on this one. Thanks in advance Mike Yahoo! Groups Links Yahoo! Groups Links
Re: [Repeater-Builder] Re: Decibel folded dipole
The person asking the question didn't know the frequency range of his antenna. The lengths I gave him will tell him that. That's all I was doing. If it's the 450-470 model, it will work as-is. If it's the 406-420 model, he's probably out of luck. Changing the harness lengths will be almost impossible. Chuck WB2EDV - Original Message - From: Bob Ricci b...@af6d.com To: Repeater-Builder@yahoogroups.com Sent: Saturday, February 07, 2009 7:54 PM Subject: [Repeater-Builder] Re: Decibel folded dipole --- In Repeater-Builder@yahoogroups.com, Chuck Kelsey wb2...@... wrote: Shouldn't the length of the phasing harness also be adjusted?
[Repeater-Builder] ACC RC96 rx audio gating
Has anyone ever figured out why the RC96 does NOT mute RX audio when the receiver is inactive? Looking at the schematic it appears that the rx audio mux switch pin of IC9 (4053) should, in theory (according to the schematic), control the audio gating. The switch control pin is tied to the select 1 line, which is driven by the cpu (indirectly). However, when monitoring the switch pin of the 4053 for the rx audio path, the pin's logic state never changes. I have an application where I want to use unsquelched audio into the RC96. When using a 96 with the audio delay option board, as can be seen by reviewing the schematics, ACC uses a 4077 NOR gate to combine the SELECT 1 line with the rx COS signal to allow either function to control this audio gate, which by virtue of the delay board installation process gets moved up onto the daughterboard. For now I simply lifted the 4053's switch control pin from the ic socket and wired it to the rx COS pin by way of a transistor and pull- up resistor to Vcc of the chip, and this works great. However, as a purist, this has one caveat, in that if the repeater is in PL mode, any noise bursts which open the squelch (and result in COS going active) will allow rx audio to pass thru to the TX during hang time or IDs. Does anyone know why the processor is NOT controlling the rx audio gate? It would be nice if it did, so that the audio would only switch on when the rx is active, regardless of mode. Did ACC just never get around to implementing control of the SELECT 1 logic line in the firmware? I have confirmed this in more than one 96, so it's not a bad component. Eric KE2D
[Repeater-Builder] For Sale 2 EF Johnson 5100 RF Decks .
For Sale 2 EF Johnson 5100 Replacment RF Decks . One is a 800 MHz RF Deck , and the Other is a UHF RF Deck . Asking $45.00 each . Any Questions Pleae Ask . Thank you . efj44 .
RE: [Repeater-Builder] Re: M1225 programming problem
James, What is screwy about the diagram? Other than not clearly identifying pins 4 and 7, it is correct. The linked forum item does not address the mike connector numbering. I don't see the connection. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of crackedofn0de Sent: Saturday, February 07, 2009 4:24 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: M1225 programming problem --- In Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com , Jeff Clark je...@... wrote: Hope this is the correct group for this kind of question. I'm trying to program two m1225 UHF mobiles with a Polaris PA-II rib and a cable assembled per the batlabs cable page (listed same as GM300). I've checked and double checked the connections on both ends and made sure the tab on the rj45 end is oriented according to the diagram, but when I plug it in to the mic jack and turn on the rib, the radio keys up and stays keyed until I kill the power or pull the plug. I've tried this on both radios with the same result, and I've programmed my P1225s with the same rib, so I'm wondering if the pinout on the rj45 jack is wrong. Are there additional pinouts beside the one listed on the batlabs page? thanks, --jeff, kf6bkg The diagram on batlabs is a little screwy. I started a big ugly thread on this years ago: http://batboard.batlabs.com/viewtopic.php?t=5955 http://batboard.batlabs.com/viewtopic.php?t=5955 James K7ICU
[Repeater-Builder] Re: M1225 programming problem
Somehow the last character of the link I posted went missing. Here's the correct link: http://batboard.batlabs.com/viewtopic.php?t=59557 --- In Repeater-Builder@yahoogroups.com, Eric Lemmon wb6...@... wrote: James, What is screwy about the diagram? Other than not clearly identifying pins 4 and 7, it is correct. The linked forum item does not address the mike connector numbering. I don't see the connection. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of crackedofn0de Sent: Saturday, February 07, 2009 4:24 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: M1225 programming problem --- In Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com , Jeff Clark jefco@ wrote: Hope this is the correct group for this kind of question. I'm trying to program two m1225 UHF mobiles with a Polaris PA-II rib and a cable assembled per the batlabs cable page (listed same as GM300). I've checked and double checked the connections on both ends and made sure the tab on the rj45 end is oriented according to the diagram, but when I plug it in to the mic jack and turn on the rib, the radio keys up and stays keyed until I kill the power or pull the plug. I've tried this on both radios with the same result, and I've programmed my P1225s with the same rib, so I'm wondering if the pinout on the rj45 jack is wrong. Are there additional pinouts beside the one listed on the batlabs page? thanks, --jeff, kf6bkg The diagram on batlabs is a little screwy. I started a big ugly thread on this years ago: http://batboard.batlabs.com/viewtopic.php?t=5955 http://batboard.batlabs.com/viewtopic.php?t=5955 James K7ICU
Re: [Repeater-Builder] Re: GE MVP output power level
At 2/7/2009 10:27, you wrote: The auction listing mentions that original MVP Repeater has only a few watts output. I seem to remember the original MVP repeater PA being rated about 2.5 to 3.5 watts output? Bob and Chuck, Are you guys turning down the output power on your conversion MVP (radio to) Repeaters? ... or running near/at the nominal radio RF output level without major internal cabinet de-sense problems? Nope. Full power on the 30 watt VHF/25 watt UHFs. I do turn down the 40 watt UHF radios down to just under 40, as that seems to be the point of maximum efficiency for those PAs. For the VHF HB radios, an old CPU fan/heatsink combo clamped to the flat back surface keyed by the (buffered to eliminate fan noise) PTT line provides more than sufficient cooling. The UHF PAs aren't quite as efficient; for those I still use 110 VAC fans that spin 24/7, or in one case where the site manager didn't allow that, larger PTT-keyed 12 VDC fans. No desense problems with the MVP. There is a TX-LO IMD problem in the UHF radios that is documented, along with the fixes, in my MVP conversion article on the repeater-builder website. Bob NO6B
RE: [Repeater-Builder] Re: GE MVP output power level
Let's not forget that the MVP repeater in question is the LPI (Low Power Industrial) version, and it comes with a 19C327014G7 PA module that has a range of 1.5 to 5 watts. The MVP LPI repeater was normally delivered with the power set for two watts at the duplexer's antenna jack. More info is here: www.repeater-builder.com/ge/lbi-library/lbi-32772a.pdf 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of n...@no6b.com Sent: Saturday, February 07, 2009 8:22 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Re: GE MVP output power level At 2/7/2009 10:27, you wrote: The auction listing mentions that original MVP Repeater has only a few watts output. I seem to remember the original MVP repeater PA being rated about 2.5 to 3.5 watts output? Bob and Chuck, Are you guys turning down the output power on your conversion MVP (radio to) Repeaters? ... or running near/at the nominal radio RF output level without major internal cabinet de-sense problems? Nope. Full power on the 30 watt VHF/25 watt UHFs. I do turn down the 40 watt UHF radios down to just under 40, as that seems to be the point of maximum efficiency for those PAs. For the VHF HB radios, an old CPU fan/heatsink combo clamped to the flat back surface keyed by the (buffered to eliminate fan noise) PTT line provides more than sufficient cooling. The UHF PAs aren't quite as efficient; for those I still use 110 VAC fans that spin 24/7, or in one case where the site manager didn't allow that, larger PTT-keyed 12 VDC fans. No desense problems with the MVP. There is a TX-LO IMD problem in the UHF radios that is documented, along with the fixes, in my MVP conversion article on the repeater-builder website. Bob NO6B
