RE: [Repeater-Builder] Got some noise from a fan in the system
That question is already answered in the first post. I am using a RA1-ID off eBay for a controller. But I did take the advice and used a wall wart to power the fan and now the hum is gone! Thanks everyone for the information, my boss is happy and now I can get some rest and have him off my back! Thanks again! Peter Summerhawk-N0WRE -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Rick Beatty Sent: Friday, February 20, 2009 10:41 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Got some noise from a fan in the system Good Morning Peter -- Before I can suggest anything I need some more information. Is this a Motorola repeater, in a cabinet with a motorola power supply? Are you using a motorola RIC, basically - what is the configuration of the repeater? I ask this because it has been well documented in the past that some controllers exhibit fan noise when they are connected in such a way as to control the fan activity or ar in parallel with the power of the repeater on a less than high quality supply capable of handling the repeater total current -- Rick NU7Z On Thu, Feb 19, 2009 at 8:02 PM, Dakota Summerhawk commcon...@gmail. mailto:commcon...@gmail.com com wrote: Morning, I have a couple of M-10 radios run together with a 12VDC fan keeping them cool in the cabinet. However the power block has them all run into the same line fed by the power supply. You can hear the noise of the fan when you key the repeater. Would a filter help this on the positive line of the fan? Or maybe a coil to filter the noise? I am at a loss as to what might keep the system cool but also eliminate the noise of the fan as well. Thanks for the help in advance. Peter Summerhawk
[Repeater-Builder] Zetron simulcast delay - looking for manual
I have a Zetron simulcast delay unit. The sticker on it says model # Simulcast Delay Unit. In doing some web searches, I think it might be the same as a Zetron model 62, although it doesn't bear that model number anywhere on it. It's a half-rack unit wide, 1 RU high. Can't find anything applicable on Zetron's site. Anyone have a copy of a manual for it? Thanks. --- Jeff WN3A
[Repeater-Builder] Micor newbie needs advice
Greetings all, I normally maintain a couple of 'out-of-the-box' (Kendecom) repeaters, but recently I've been asked to help out with another system that is homebrewed from Micors. It consists of 4 Micors (TX on 2 meters, RX on 2 meters, TX on 440 and RX on 440) linked with a CAT-500 and a set of homebrew controls. Lately, the 2 meter RX has become intermittent. For a while, I'd been able to either wiggle the plug on the front of the receiver or give the receiver a good whack and it'd come back to life, but lately it's become more and more obstinate. A couple of weeks ago, I brought the RX back to my shop and pulled all the boards, cleaned the pins and did my best to look for obvious problems. I really didn't see anything wrong, but when I reinstalled the RX, it work fine and I thought (after it ran for a couple of weeks) I must have fixed it. (I have no way of running it on the bench... so it was just a plug-and-pray fix.) Unfortunately, it crapped out again a couple of days ago, and this time reseating the plug and banging had no effect. One thing I did notice that I'd not seen before (it's hard to access the rear of the repeater) is that the plug (on the harness) is missing a piece of plastic surrounding the three pins nearest the hinged side of the handle. I haven't had time to pull up the drawings yet to see what those pins are, but I suspect that may be at the heart of my problem. At any rate, I'd like to be able to run this beast on my bench. Where can I come up with a harness and control, and what (if any) additional hardware would I need to be able to get this thing hooked up? Second, IF the harness plug IS the problem, what's the best course of action? Changing the plug looks like a real bugger. I haven't traced it up to the homebrew controls yet, so I'm not sure how difficult it'd be to swap out the entire harness (if I had one), but either way doesn't look like much fun. 73, Mike WM4B
Re: [Repeater-Builder] Micor newbie needs advice
You might be better off drilling a hole and running the handful of necessary wires through and soldering them inside the radio. Chuck WB2EDV - Original Message - From: Mike Besemer (WM4B) mwbese...@cox.net To: Repeater-Builder@yahoogroups.com Sent: Saturday, February 21, 2009 12:28 PM Subject: [Repeater-Builder] Micor newbie needs advice Second, IF the harness plug IS the problem, what's the best course of action? Changing the plug looks like a real bugger. I haven't traced it up to the homebrew controls yet, so I'm not sure how difficult it'd be to swap out the entire harness (if I had one), but either way doesn't look like much fun. 73, Mike WM4B
RE: [Repeater-Builder] Micor newbie needs advice
Yeah. I thought of that. It deeply offends my OCD, but that might be the logical solution! Mike WM4B From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Chuck Kelsey Sent: Saturday, February 21, 2009 12:40 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Micor newbie needs advice You might be better off drilling a hole and running the handful of necessary wires through and soldering them inside the radio. Chuck WB2EDV - Original Message - From: Mike Besemer (WM4B) mwbese...@cox.net mailto:mwbesemer%40cox.net To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Sent: Saturday, February 21, 2009 12:28 PM Subject: [Repeater-Builder] Micor newbie needs advice Second, IF the harness plug IS the problem, what's the best course of action? Changing the plug looks like a real bugger. I haven't traced it up to the homebrew controls yet, so I'm not sure how difficult it'd be to swap out the entire harness (if I had one), but either way doesn't look like much fun. 73, Mike WM4B image001.jpgimage002.jpg
Re: [Repeater-Builder] Micor newbie needs advice
Maybe you'd feel better re-connectorizing (in-line) the new set of wires. Another thing to watch for with a Micor mobile. There are shield plates on the underside of some boards. These just press in place with some pins. These pins corrode and cause grief. Pull the shields off and clean things. Chuck WB2EDV - Original Message - From: Mike Besemer (WM4B) To: Repeater-Builder@yahoogroups.com Sent: Saturday, February 21, 2009 1:05 PM Subject: RE: [Repeater-Builder] Micor newbie needs advice Yeah. I thought of that. It deeply offends my OCD, but that might be the logical solution! Mike WM4B From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Chuck Kelsey Sent: Saturday, February 21, 2009 12:40 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Micor newbie needs advice You might be better off drilling a hole and running the handful of necessary wires through and soldering them inside the radio. Chuck WB2EDV - Original Message - From: Mike Besemer (WM4B) mwbese...@cox.net To: Repeater-Builder@yahoogroups.com Sent: Saturday, February 21, 2009 12:28 PM Subject: [Repeater-Builder] Micor newbie needs advice Second, IF the harness plug IS the problem, what's the best course of action? Changing the plug looks like a real bugger. I haven't traced it up to the homebrew controls yet, so I'm not sure how difficult it'd be to swap out the entire harness (if I had one), but either way doesn't look like much fun. 73, Mike WM4B
RE: [Repeater-Builder] Micor newbie needs advice
Yeah. I cleaned 'em all when I had it at the shop a few weeks ago. Didn't really see anything that looked problematic. Wish I could run it on the bench. BEFORE I decide to mess with the busted plug! Mike WM4B From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Chuck Kelsey Sent: Saturday, February 21, 2009 1:29 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Micor newbie needs advice Maybe you'd feel better re-connectorizing (in-line) the new set of wires. Another thing to watch for with a Micor mobile. There are shield plates on the underside of some boards. These just press in place with some pins. These pins corrode and cause grief. Pull the shields off and clean things. Chuck WB2EDV - Original Message - From: Mike Besemer (WM4B) mailto:mwbese...@cox.net To: Repeater-Builder@yahoogroups.com Sent: Saturday, February 21, 2009 1:05 PM Subject: RE: [Repeater-Builder] Micor newbie needs advice Yeah. I thought of that. It deeply offends my OCD, but that might be the logical solution! Mike WM4B From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Chuck Kelsey Sent: Saturday, February 21, 2009 12:40 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Micor newbie needs advice You might be better off drilling a hole and running the handful of necessary wires through and soldering them inside the radio. Chuck WB2EDV - Original Message - From: Mike Besemer (WM4B) mwbese...@cox.net mailto:mwbesemer%40cox.net To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Sent: Saturday, February 21, 2009 12:28 PM Subject: [Repeater-Builder] Micor newbie needs advice Second, IF the harness plug IS the problem, what's the best course of action? Changing the plug looks like a real bugger. I haven't traced it up to the homebrew controls yet, so I'm not sure how difficult it'd be to swap out the entire harness (if I had one), but either way doesn't look like much fun. 73, Mike WM4B image001.jpgimage002.jpg
[Repeater-Builder] Re: Micor newbie needs advice
Hi Mike, By the number of Micor's that you are talking about, I take them to be converted mobil's not Compa Stations. I have run into this trouble before on Micor mobil's, what I found to be the trouble is the interconnect board uses rivets instead of plated through holes and the solder joint at these rivets go bad. I inject a signal into the receiver's front-end, and then use an oscilloscope and probe along the traces on the interconnect board until I find the offending solder joint. Gregory AC6VJ --- In Repeater-Builder@yahoogroups.com, Mike Besemer \(WM4B\) mwbese...@... wrote: Greetings all, I normally maintain a couple of 'out-of-the-box' (Kendecom) repeaters, but recently I've been asked to help out with another system that is homebrewed from Micors. It consists of 4 Micors (TX on 2 meters, RX on 2 meters, TX on 440 and RX on 440) linked with a CAT-500 and a set of homebrew controls. Lately, the 2 meter RX has become intermittent. For a while, I'd been able to either wiggle the plug on the front of the receiver or give the receiver a good whack and it'd come back to life, but lately it's become more and more obstinate. A couple of weeks ago, I brought the RX back to my shop and pulled all the boards, cleaned the pins and did my best to look for obvious problems. I really didn't see anything wrong, but when I reinstalled the RX, it work fine and I thought (after it ran for a couple of weeks) I must have fixed it. (I have no way of running it on the bench... so it was just a plug-and-pray fix.) Unfortunately, it crapped out again a couple of days ago, and this time reseating the plug and banging had no effect. One thing I did notice that I'd not seen before (it's hard to access the rear of the repeater) is that the plug (on the harness) is missing a piece of plastic surrounding the three pins nearest the hinged side of the handle. I haven't had time to pull up the drawings yet to see what those pins are, but I suspect that may be at the heart of my problem. At any rate, I'd like to be able to run this beast on my bench. Where can I come up with a harness and control, and what (if any) additional hardware would I need to be able to get this thing hooked up? Second, IF the harness plug IS the problem, what's the best course of action? Changing the plug looks like a real bugger. I haven't traced it up to the homebrew controls yet, so I'm not sure how difficult it'd be to swap out the entire harness (if I had one), but either way doesn't look like much fun. 73, Mike WM4B
Re: [Repeater-Builder] Micor newbie needs advice
I had the same sorta set un till I got a harris Radio Phone 60 watts cont. duty right out of the box and thay tune to the ham bang nicely When I ran the Micros I had both worked for RX and TX so if my RX died I could flip the radios and be back on the air thats an idea if it was set up that way .. I will look in my spare part to see if I have my bench set up still kicking around Rick On Sat, Feb 21, 2009 at 12:28 PM, Mike Besemer (WM4B) mwbese...@cox.netwrote: Greetings all, I normally maintain a couple of 'out-of-the-box' (Kendecom) repeaters, but recently I've been asked to help out with another system that is homebrewed from Micors. It consists of 4 Micors (TX on 2 meters, RX on 2 meters, TX on 440 and RX on 440) linked with a CAT-500 and a set of homebrew controls. Lately, the 2 meter RX has become intermittent. For a while, I'd been able to either wiggle the plug on the front of the receiver or give the receiver a good whack and it'd come back to life, but lately it's become more and more obstinate. A couple of weeks ago, I brought the RX back to my shop and pulled all the boards, cleaned the pins and did my best to look for obvious problems. I really didn't see anything wrong, but when I reinstalled the RX, it work fine and I thought (after it ran for a couple of weeks) I must have fixed it. (I have no way of running it on the bench... so it was just a plug-and-pray fix.) Unfortunately, it crapped out again a couple of days ago, and this time reseating the plug and banging had no effect. One thing I did notice that I'd not seen before (it's hard to access the rear of the repeater) is that the plug (on the harness) is missing a piece of plastic surrounding the three pins nearest the hinged side of the handle. I haven't had time to pull up the drawings yet to see what those pins are, but I suspect that may be at the heart of my problem. At any rate, I'd like to be able to run this beast on my bench. Where can I come up with a harness and control, and what (if any) additional hardware would I need to be able to get this thing hooked up? Second, IF the harness plug IS the problem, what's the best course of action? Changing the plug looks like a real bugger. I haven't traced it up to the homebrew controls yet, so I'm not sure how difficult it'd be to swap out the entire harness (if I had one), but either way doesn't look like much fun. 73, Mike WM4B
Re: [Repeater-Builder] Micor newbie needs advice
Question for the group The repeater is on the out side of town .. coverage in town is ok but could be a lot better TX is GREAT Idea .. can I put a RX (vhf ) site in town and piggy back that to a UHF radio and then feed that into a RLC controller to be linked to the main repeater port or will that cause problems ? I just want to bring up the 'handi' coverage in the down town core I have access to a roof top that will do what I want to .. any Ideas ? Thanks Rick
[Repeater-Builder] off site extra RX
Question for the group The repeater is on the out side of town .. coverage in town is ok but could be a lot better TX is GREAT Idea .. can I put a RX (vhf ) site in town and piggy back that to a UHF radio and then feed that into a RLC controller to be linked to the main repeater port or will that cause problems ? I just want to bring up the 'handi' coverage in the down town core I have access to a roof top that will do what I want to .. any Ideas ? Thanks Rick
RE: [Repeater-Builder] Micor newbie needs advice
Rick, Yeah. I failed to mention that they're mobiles. The original builder stripped all the unneeded parts out of each unit (no TX parts in the RX, and vice versa) so there's no hope in swapping them. I 'might' be able to swap the 440 RX into the 2-meter slot (haven't even looked into the 440 cabinet yet) and create a temporary 'Frankenrepeater) just to see if it's the plug or not. The problem is, I'm working on a system designed by two hams (one of which is deceased now) and the other just hasn't got time to help me. I've got limited drawings at this point, and I DON'T want to make anything worse. I REALLY need to go out and mark a bunch of cables. the labels are starting to fall of and if I disconnect something by accident (which I've done several times) I'll have a heck of a mess! I ought to have better sense then to get into situations like this! Mike WM4B From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Rick Szajkowski Sent: Saturday, February 21, 2009 2:24 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Micor newbie needs advice I had the same sorta set un till I got a harris Radio Phone 60 watts cont. duty right out of the box and thay tune to the ham bang nicely When I ran the Micros I had both worked for RX and TX so if my RX died I could flip the radios and be back on the air thats an idea if it was set up that way .. I will look in my spare part to see if I have my bench set up still kicking around Rick On Sat, Feb 21, 2009 at 12:28 PM, Mike Besemer (WM4B) mwbese...@cox.net wrote: Greetings all, I normally maintain a couple of 'out-of-the-box' (Kendecom) repeaters, but recently I've been asked to help out with another system that is homebrewed from Micors. It consists of 4 Micors (TX on 2 meters, RX on 2 meters, TX on 440 and RX on 440) linked with a CAT-500 and a set of homebrew controls. Lately, the 2 meter RX has become intermittent. For a while, I'd been able to either wiggle the plug on the front of the receiver or give the receiver a good whack and it'd come back to life, but lately it's become more and more obstinate. A couple of weeks ago, I brought the RX back to my shop and pulled all the boards, cleaned the pins and did my best to look for obvious problems. I really didn't see anything wrong, but when I reinstalled the RX, it work fine and I thought (after it ran for a couple of weeks) I must have fixed it. (I have no way of running it on the bench... so it was just a plug-and-pray fix.) Unfortunately, it crapped out again a couple of days ago, and this time reseating the plug and banging had no effect. One thing I did notice that I'd not seen before (it's hard to access the rear of the repeater) is that the plug (on the harness) is missing a piece of plastic surrounding the three pins nearest the hinged side of the handle. I haven't had time to pull up the drawings yet to see what those pins are, but I suspect that may be at the heart of my problem. At any rate, I'd like to be able to run this beast on my bench. Where can I come up with a harness and control, and what (if any) additional hardware would I need to be able to get this thing hooked up? Second, IF the harness plug IS the problem, what's the best course of action? Changing the plug looks like a real bugger. I haven't traced it up to the homebrew controls yet, so I'm not sure how difficult it'd be to swap out the entire harness (if I had one), but either way doesn't look like much fun. 73, Mike WM4B image001.jpgimage002.jpg
RE: [Repeater-Builder] Micor newbie needs advice
Sorry guys... I replied to the wrong email. This should have been in reply to Gregory's email. Better keep me away from any powered circuits today! 73, Mike WM4B From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Mike Besemer (WM4B) Sent: Saturday, February 21, 2009 2:59 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Micor newbie needs advice Rick, Yeah I failed to mention that theyre mobiles. The original builder stripped all the unneeded parts out of each unit (no TX parts in the RX, and vice versa) so theres no hope in swapping them. I might be able to swap the 440 RX into the 2-meter slot (havent even looked into the 440 cabinet yet) and create a temporary Frankenrepeater) just to see if its the plug or not. The problem is, Im working on a system designed by two hams (one of which is deceased now) and the other just hasnt got time to help me. Ive got limited drawings at this point, and I DONT want to make anything worse. I REALLY need to go out and mark a bunch of cables the labels are starting to fall of and if I disconnect something by accident (which Ive done several times) Ill have a heck of a mess! I ought to have better sense then to get into situations like this! Mike WM4B From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Rick Szajkowski Sent: Saturday, February 21, 2009 2:24 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Micor newbie needs advice I had the same sorta set un till I got a harris Radio Phone 60 watts cont. duty right out of the box and thay tune to the ham bang nicely When I ran the Micros I had both worked for RX and TX so if my RX died I could flip the radios and be back on the air thats an idea if it was set up that way .. I will look in my spare part to see if I have my bench set up still kicking around Rick On Sat, Feb 21, 2009 at 12:28 PM, Mike Besemer (WM4B) mwbese...@cox.net wrote: Greetings all, I normally maintain a couple of 'out-of-the-box' (Kendecom) repeaters, but recently I've been asked to help out with another system that is homebrewed from Micors. It consists of 4 Micors (TX on 2 meters, RX on 2 meters, TX on 440 and RX on 440) linked with a CAT-500 and a set of homebrew controls. Lately, the 2 meter RX has become intermittent. For a while, I'd been able to either wiggle the plug on the front of the receiver or give the receiver a good whack and it'd come back to life, but lately it's become more and more obstinate. A couple of weeks ago, I brought the RX back to my shop and pulled all the boards, cleaned the pins and did my best to look for obvious problems. I really didn't see anything wrong, but when I reinstalled the RX, it work fine and I thought (after it ran for a couple of weeks) I must have fixed it. (I have no way of running it on the bench... so it was just a plug-and-pray fix.) Unfortunately, it crapped out again a couple of days ago, and this time reseating the plug and banging had no effect. One thing I did notice that I'd not seen before (it's hard to access the rear of the repeater) is that the plug (on the harness) is missing a piece of plastic surrounding the three pins nearest the hinged side of the handle. I haven't had time to pull up the drawings yet to see what those pins are, but I suspect that may be at the heart of my problem. At any rate, I'd like to be able to run this beast on my bench. Where can I come up with a harness and control, and what (if any) additional hardware would I need to be able to get this thing hooked up? Second, IF the harness plug IS the problem, what's the best course of action? Changing the plug looks like a real bugger. I haven't traced it up to the homebrew controls yet, so I'm not sure how difficult it'd be to swap out the entire harness (if I had one), but either way doesn't look like much fun. 73, Mike WM4B
Re: [Repeater-Builder] Micor newbie needs advice
No My mistake I am sorry On Sat, Feb 21, 2009 at 3:00 PM, Mike Besemer (WM4B) mwbese...@cox.netwrote: Sorry guys... I replied to the wrong email. This should have been in reply to Gregory's email. Better keep me away from any powered circuits today! 73, Mike WM4B From: Repeater-Builder@yahoogroups.comRepeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@yahoogroups.comRepeater-Builder%40yahoogroups.com] On Behalf Of Mike Besemer (WM4B) Sent: Saturday, February 21, 2009 2:59 PM To: Repeater-Builder@yahoogroups.com Repeater-Builder%40yahoogroups.com Subject: RE: [Repeater-Builder] Micor newbie needs advice Rick, Yeah… I failed to mention that they're mobiles. The original builder stripped all the unneeded parts out of each unit (no TX parts in the RX, and vice versa) so there's no hope in swapping them. I 'might' be able to swap the 440 RX into the 2-meter slot (haven't even looked into the 440 cabinet yet) and create a temporary 'Frankenrepeater) just to see if it's the plug or not. The problem is, I'm working on a system designed by two hams (one of which is deceased now) and the other just hasn't got time to help me. I've got limited drawings at this point, and I DON'T want to make anything worse. I REALLY need to go out and mark a bunch of cables… the labels are starting to fall of and if I disconnect something by accident (which I've done several times) I'll have a heck of a mess! I ought to have better sense then to get into situations like this! Mike WM4B From: Repeater-Builder@yahoogroups.comRepeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@yahoogroups.comRepeater-Builder%40yahoogroups.com] On Behalf Of Rick Szajkowski Sent: Saturday, February 21, 2009 2:24 PM To: Repeater-Builder@yahoogroups.com Repeater-Builder%40yahoogroups.com Subject: Re: [Repeater-Builder] Micor newbie needs advice I had the same sorta set un till I got a harris Radio Phone 60 watts cont. duty right out of the box and thay tune to the ham bang nicely When I ran the Micros I had both worked for RX and TX so if my RX died I could flip the radios and be back on the air thats an idea if it was set up that way .. I will look in my spare part to see if I have my bench set up still kicking around Rick On Sat, Feb 21, 2009 at 12:28 PM, Mike Besemer (WM4B) mwbese...@cox.netmwbesemer%40cox.net wrote: Greetings all, I normally maintain a couple of 'out-of-the-box' (Kendecom) repeaters, but recently I've been asked to help out with another system that is homebrewed from Micors. It consists of 4 Micors (TX on 2 meters, RX on 2 meters, TX on 440 and RX on 440) linked with a CAT-500 and a set of homebrew controls. Lately, the 2 meter RX has become intermittent. For a while, I'd been able to either wiggle the plug on the front of the receiver or give the receiver a good whack and it'd come back to life, but lately it's become more and more obstinate. A couple of weeks ago, I brought the RX back to my shop and pulled all the boards, cleaned the pins and did my best to look for obvious problems. I really didn't see anything wrong, but when I reinstalled the RX, it work fine and I thought (after it ran for a couple of weeks) I must have fixed it. (I have no way of running it on the bench... so it was just a plug-and-pray fix.) Unfortunately, it crapped out again a couple of days ago, and this time reseating the plug and banging had no effect. One thing I did notice that I'd not seen before (it's hard to access the rear of the repeater) is that the plug (on the harness) is missing a piece of plastic surrounding the three pins nearest the hinged side of the handle. I haven't had time to pull up the drawings yet to see what those pins are, but I suspect that may be at the heart of my problem. At any rate, I'd like to be able to run this beast on my bench. Where can I come up with a harness and control, and what (if any) additional hardware would I need to be able to get this thing hooked up? Second, IF the harness plug IS the problem, what's the best course of action? Changing the plug looks like a real bugger. I haven't traced it up to the homebrew controls yet, so I'm not sure how difficult it'd be to swap out the entire harness (if I had one), but either way doesn't look like much fun. 73, Mike WM4B
RE: [Repeater-Builder] Micor newbie needs advice
Re: Micor receiver stirp At any rate, I'd like to be able to run this beast on my bench. Where can I come up with a harness and control, and what (if any) additional hardware would I need to be able to get this thing hooked up? The easiest thing would be to find a SpectraTAC receiver chassis somewhere and drop your receiver into it. Lacking that, you only need to provide 12V and 9.6V to a few pins on the board to light up the receiver strip. See the schematic for the receiver or the Micor system board to get the pinout - it's straightforward. From memory (so don't hold this as gospel, check the docs), you have to provide 12V to one pin, 9.6V to two pins, ground, ground the F1 channel select line, that's about it. You won't have squelch or volume control, but you can monitor the discriminator audio output using an outboard audio amp (a cheap amplified PC speaker makes a handy audio amplifier for the bench). An LM7810 10V regulator with a series diode on the output will give you 9.6V if you don't have a variable output bench supply (I believe Motorola's spec is between 9.3 and 9.9V if I remember right). Second, IF the harness plug IS the problem, what's the best course of action? Scrap the chassis and get another. Or, if you were successful in finding a SpectraTAC chassis, use that instead --- Jeff WN3A
[Repeater-Builder] Re: off site extra RX
I don't know the RLC controller per se'. If it has a voter panel in it I'd say ok. If you don't have a voter panel I'd say the idea is very iffy. You don't want the same rcv audio being summed from two different sources unless you take very special precautions. If those precautions are not employed, you will have distortions echos. Problem #1: Unless you incorporate an adaptive delay into each audio path, you'll have audio arriving out of sync from the various rcvrs. This is where your echos will come from. Problem #2: Your audio will probably comprise unequal freq responses due the different rcvr link characteristics. You'll need to equalize the audio paths so they sound the same no matter which source is feeding the main tx. About the only way your idea can work w/o all the extra devices is if the two (or more) audio sources were never live simultaneously. Other than the last scenario, you'll have your work cut out for you in the attempt to make it sound decent. Just my thoughts on the matter. --- In Repeater-Builder@yahoogroups.com, Rick Szajkowski va3r...@... wrote: Question for the group The repeater is on the out side of town .. coverage in town is ok but could be a lot better TX is GREAT Idea .. can I put a RX (vhf ) site in town and piggy back that to a UHF radio and then feed that into a RLC controller to be linked to the main repeater port or will that cause problems ? I just want to bring up the 'handi' coverage in the down town core I have access to a roof top that will do what I want to .. any Ideas ? Thanks Rick
Re: [Repeater-Builder] Re: off site extra RX
Someone else suggested the poor man's voter by simply requiring a different PL tone for the other receiver. Users simply need to know which tone to use for each area. The other solution is to simply link in a low profile repeater at the desired location. This could even be on a different band. Again, users would need to understand this as well. Chuck WB2EDV - Original Message - Question for the group The repeater is on the out side of town .. coverage in town is ok but could be a lot better TX is GREAT Idea .. can I put a RX (vhf ) site in town and piggy back that to a UHF radio and then feed that into a RLC controller to be linked to the main repeater port or will that cause problems ? I just want to bring up the 'handi' coverage in the down town core I have access to a roof top that will do what I want to .. any Ideas ? Thanks Rick
[Repeater-Builder] Re: off site extra RX
--- In Repeater-Builder@yahoogroups.com, rtc_0001 rtc_0...@... wrote: Problem #1: Unless you incorporate an adaptive delay into each audio path, you'll have audio arriving out of sync from the various rcvrs. This is where your echos will come from. The microseconds of difference would not be the issue. It's when you mix a noisy receiver's audio with a full quieting receiver's audio, the result is noisy audio. You can't (usefully) mix the two. Problem #2: Your audio will probably comprise unequal freq responses due the different rcvr link characteristics. True, problem #2 will need (at least should) to be solved if you use a voter. And it's relatively easy, especially if you use the same brand/model of radios for each portion of the system. In other words, matching/same units for the remote receivers, again for the link transmitters, and once more for the link receivers. So you could use Mastr IIs for the link transmitters and Micors for the link receivers, no problem. With the four receivers on our voting system, I've not had to do any special EQing for reasonably good audio, with little difference between receivers. For more on voting systems: http://www.repeater-builder.com/tech-info/votingcomparators.html http://www.repeater-builder.com/tech-info/remotereceivers.html Laryn K8TVZ
RE: [Repeater-Builder] Audio Intelligence Devices BXR-2200A Briefcase Repeater
Thanks to all who responded. Now, someone else has the nice aluminum case, He seemed pretty happy about it. So much for learning the hard way, It wasn't very painful at all. Thanks Again, David KD4NUE -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Milt Sent: Friday, February 20, 2009 11:46 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Audio Intelligence Devices BXR-2200A Briefcase Repeater I believe that you now have a nice Haliburton aluminum briefcase. Perhaps a DC power supply. The duplexer might be usable as some sort of filter for reception in the high VHF range Unless you are licensed for something in the high section of VHF the rest is just a pile of parts. Of course you can spend a lot of time finding that out the hard way. Milt N3LTQ - Original Message - From: David Little dalit...@bellsouth. mailto:dalite01%40bellsouth.net net To: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com Sent: Thursday, February 19, 2009 10:21 AM Subject: [Repeater-Builder] Audio Intelligence Devices BXR-2200A Briefcase Repeater I am looking for any info on an Audio Intelligence Devices (AID) BXR- 2200A briefcase repeater Anyone here have any experience with this, or a pointer on where to look on the web for info? It is a 3 channel, 4 mode setup that operates at 2 and 6 watts with a carrier time-out option for modes 3 (2 watts) and 4 (6 watts). Modes 1 and 2 are the same power without the timeout. The unit is in a Zero Centurion Haliburton aluminum briefcase, operates from internal AC Supply, or external DC source (which both charge the internal Gel Cells when connected) It uses Phelps Dodge duplexers; model number unknown I got it with the intentions of trying it on 2m(600KHz split), MARS or CAP (4 to 5 MHz split) 143 / 148. Any Info appreciated, David KD4NUE Here is a rundown on basic info from looking at the unit. Can send pics (inside and out) if it will help. *** BXR-2200A SERIAL NO 11xx Audio Intelligence Devices Ft. Lauderdale, Florida Gell Cell GC1260 12 Volt 6 Amp (2 pieces) Channel Frequencies: T1 173.8875 T3 R1 165.2875 R2 165.9125 R3 RX Crystal Info: 71.9437 Channel 1 165.2875 (X2+21.4=165.2874) 72.2562 Channel 2 165.9125 (X2+21.4=165.9124) TX 19.3208 Channel 1 173.8875 (X9=173.8872) PA: MHW602 Motorola Brick VHF PA power module Zo OHMS - 50 DC Volts 12.5 BW MHz 146-174 Max BW 140 - 180 P Out Min W 20 P In mW 175 Bias Class C Case 297-02 Frequency Search Yields: Alcohol, Tobacco Firearms 165.2875 r/s Operations (primary) 166.5375 r/s Operations 165.9125 s Unit to Unit 173.8875 s Unit to Unit Yahoo! Groups Links
[Repeater-Builder] M/A-Comm M7100 Interface
Can anyone out on the list provide pinouts for the accessory connector on a M7100 mobile? I could like to get TX and RX audio as well as PTT and COS. Thanks, Scott
[Repeater-Builder] Need transistor for SCR200A
Hi Guys, I’m new to the list and have been just lurking and reading the mail but now I can use some help finding a replacement transistor. It’s for a Spectrum Communications Corp SCR200A receiver. The transistor in question is the input RF transistor. The schematic is difficult to read for the part number but it appears to be 6033. I can find no cross reference to this and could use either direction to a replacement or a scrapped SCR200A that I can salvage one from. I know it would be best to replace the receiver with a newer one but the club doesn’t want to spend any more money than they have to on this old, old repeater. I have refurbished the power supply and the transmitter and controller had been replaced earlier so I feel it’s worth some effort. Thanks for any help rendered. 73 de Morris KI4IUA No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.0.237 / Virus Database: 270.11.1/1961 - Release Date: 02/19/09 18:45:00 No virus found in this outgoing message. Checked by AVG - www.avg.com Version: 8.0.237 / Virus Database: 270.11.2/1965 - Release Date: 02/21/09 15:36:00
Re: [Repeater-Builder] Re: off site extra RX
its not a voted system .. the repeater is a Harris Radio Phone repeater and I was looking at a Ge Phoenix VHF to UHF to the repeater site UHF phoenix to the controller again just to help cover the HT's in town .. ( small town ) Was thinking just a simple J pole for the VHF side does not need a lot of gain and will be on the roof of a 2 story building like I said just an idea to extend coverage to handies in the down town core .. every where else the coverage is fine coverage for handies is spotty down town .. mobiles are fine On Sat, Feb 21, 2009 at 10:33 PM, Laryn Lohman lar...@hotmail.com wrote: --- In Repeater-Builder@yahoogroups.comRepeater-Builder%40yahoogroups.com, rtc_0001 rtc_0...@... wrote: Problem #1: Unless you incorporate an adaptive delay into each audio path, you'll have audio arriving out of sync from the various rcvrs. This is where your echos will come from. The microseconds of difference would not be the issue. It's when you mix a noisy receiver's audio with a full quieting receiver's audio, the result is noisy audio. You can't (usefully) mix the two. Problem #2: Your audio will probably comprise unequal freq responses due the different rcvr link characteristics. True, problem #2 will need (at least should) to be solved if you use a voter. And it's relatively easy, especially if you use the same brand/model of radios for each portion of the system. In other words, matching/same units for the remote receivers, again for the link transmitters, and once more for the link receivers. So you could use Mastr IIs for the link transmitters and Micors for the link receivers, no problem. With the four receivers on our voting system, I've not had to do any special EQing for reasonably good audio, with little difference between receivers. For more on voting systems: http://www.repeater-builder.com/tech-info/votingcomparators.html http://www.repeater-builder.com/tech-info/remotereceivers.html Laryn K8TVZ
[Repeater-Builder] Re: off site extra RX
Rick, If you are not interested in using a 2 channel voter, the second best way is to use a 2nd PL tone on the remote receiver. I have done both and if you have a good group of users, the two PL tone method works very well. If you have a technology challenged group of users it can be a pain to keep explaining to the users how to use the system. With a voter, the users never know there is a second receiver. Good luck with your project. Joe --- In Repeater-Builder@yahoogroups.com, Rick Szajkowski va3r...@... wrote: Question for the group The repeater is on the out side of town .. coverage in town is ok but could be a lot better TX is GREAT Idea .. can I put a RX (vhf ) site in town and piggy back that to a UHF radio and then feed that into a RLC controller to be linked to the main repeater port or will that cause problems ? I just want to bring up the 'handi' coverage in the down town core I have access to a roof top that will do what I want to .. any Ideas ? Thanks Rick
