Re: Re: [Repeater-Builder] Part 97 question reference to Repeater control
Joe, Even with automatic control someone, a licensed ham, is responsible for the proper operation of a repeater. The control op does not have to be at the control point, but is still responsible. So does this mean one must have a control op??? No, that is on duty, but if something goes wrong he/she can be held responsible. 73, ron, n9ee/r From: MCH [EMAIL PROTECTED] Date: 2007/11/13 Tue AM 12:55:55 CST To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Part 97 question reference to Repeater control I think it's an interpretation of how you define failure of the control link. You could use an active low COS and if the repeater controller sees three minutes of continuous low, it assumes the control has failed. But, that is a discussion for another day - or another list. But, you brought up the original question - DOES the automatic control relieve the need for any other control? Joe M. [EMAIL PROTECTED] wrote: At 11/9/2007 13:12, you wrote: I know of very few who do this. Joe M. I don't know of anyone that does this. Yet it is in the rules. I think the legal out here is that automatic control relieves the need for remote control, with only the latter requiring the heartbeat timer. Bob NO6B mailto:no6b%40no6b.com[EMAIL PROTECTED] wrote: At 11/8/2007 18:12, you wrote: OK, here is where it really gets fuzzy for me: §97.213 Telecommand of an amateur station. ... (b) Provisions are incorporated to limit transmission by the station to a period of no more than 3 minutes in the event of malfunction in the control link. Does that mean that the link must be active at all times? Yes, at least once every 3 minutes. If input from the control station is not present for more than 3 minutes, the remotely controlled station is supposed to shut down. This is known as a heartbeat timer. Bob NO6B Yahoo! Groups Links Ron Wright, N9EE 727-376-6575 MICRO COMPUTER CONCEPTS Owner 146.64 repeater Tampa Bay, FL No tone, all are welcome.
Re: Re: [Repeater-Builder] Part 97 question reference to Repeater control
Bob, Whatever way one is in control of a repeater, remote or in person, one must be able to shut down. Just saying it is under automatic control means the tx can be keyed by an unlicensed machine. However, a real to live licensed ham is responsible for the operation. Just that person does not have to be at the control point, but again is responsible for getting to it in time of need. Now you can make the call of the need for a control op. 73, ron, n9ee/r From: [EMAIL PROTECTED] Date: 2007/11/13 Tue AM 12:32:44 CST To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Part 97 question reference to Repeater control At 11/9/2007 13:12, you wrote: I know of very few who do this. Joe M. I don't know of anyone that does this. Yet it is in the rules. I think the legal out here is that automatic control relieves the need for remote control, with only the latter requiring the heartbeat timer. Bob NO6B mailto:no6b%40no6b.com[EMAIL PROTECTED] wrote: At 11/8/2007 18:12, you wrote: OK, here is where it really gets fuzzy for me: §97.213 Telecommand of an amateur station. ... (b) Provisions are incorporated to limit transmission by the station to a period of no more than 3 minutes in the event of malfunction in the control link. Does that mean that the link must be active at all times? Yes, at least once every 3 minutes. If input from the control station is not present for more than 3 minutes, the remotely controlled station is supposed to shut down. This is known as a heartbeat timer. Bob NO6B Ron Wright, N9EE 727-376-6575 MICRO COMPUTER CONCEPTS Owner 146.64 repeater Tampa Bay, FL No tone, all are welcome.
Re: RE: [Repeater-Builder] Dallas Semiconductor Real-Time Clock (Was RC-96 Contr
Keith, I think few hams have the know how on doing this and it will take work. Using a PC might be much easier. There are many sources for this. 73, ron, n9ee/r From: Keith McQueen [EMAIL PROTECTED] Date: 2007/11/12 Mon PM 11:32:02 CST To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Dallas Semiconductor Real-Time Clock (Was RC-96 Controller Problem) You can purchase a GPS receiver for less than $100 that outputs an acurate time signal in NMEA serial format. Here's one: http://www.byonics.com/tinytrak/gps.php It wouldn't take much of a micro controller to convert that into the signal you need. If you can't find a way to interface with the repeater controller, you could probably roll something that would key up a radio and generate appropriate DTMF codes to set the clock. Keith [EMAIL PROTECTED] -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Eric Lemmon Sent: Monday, November 12, 2007 10:15 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Dallas Semiconductor Real-Time Clock (Was RC-96 Controller Problem) Nate, I appreciate your suggestions and comments, even though we have differing opinions about accuracy. In my area, starting an ARES or MARS net a minute or two early or late is not acceptable. We pride ourselves at beginning the net exactly on the second. After all, we're Hams, and we have access to WWV, don't we? I realize that some folks on this forum may be rolling their eyes at that statement, but hey- if sloppy operating is okay with them, let them do their thing! My obsession (yes, that's probably what it is!) with time accuracy began when I was Chief Engineer at WLRW, an FM station in Champaign-Urbana, Illinois, back in the late 60's. There was an IGM (International Good Music) automation machine that played music and ran commercials and IDs during the periods when live talent wasn't on the mike. The machine was designed to join the ABC Network News feed every hour on the hour, and being a minute early or late was not an option. The problem was that the AC power was locally generated, and was not synchronized to the national power grid as it is today. Even though the timer in the IGM controller made preparations to join the ABC Network exactly on the hour, the small variations in the AC power frequency caused the connection to be made several seconds off, either early or late, and the station owner was on my case constantly. He didn't want to spring for a Favag or Western Union precision time service, so I cooked up a crystal-controlled power oscillator to drive the IGM schedule timer with a TCXO-stabilized power source. It used a Hewlett-Packard oven time base at 10 MHz as a standard, making it easy to synch to WWV. It was a kluge, to be sure, but it worked. With this background information, perhaps you can understand that all I really need is some signal that occurs at exactly some point in time, every day, that can be used to synchronize a repeater controller automatically. Most real-time clock chips, including those made by Dallas Semiconductor, have sufficient short-term accuracy to flywheel through one day without getting more than a second off. If I can tweak such a clock once a day to bring it to the exact time, that is enough. I really don't want to add phone lines, IRLP links, wireless networks, or anything else to make this happen. It would be great if the next-generation repeater controllers had a BNC or TNC connector on the back labeled GPS antenna or WWVB antenna and all I needed to do was install one simple antenna, and the controller would know the time! 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Nate Duehr Sent: Monday, November 12, 2007 11:57 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Dallas Semiconductor Real-Time Clock (Was RC-96 Controller Problem) Eric Lemmon wrote: Don, The on-the-hour tone is an 800 ms burst of 1500 Hz. I have built a PLL 1500 Hz tone detector into a Hamtronics WWV receiver, and it works fine- giving me a relay contact closure exactly on the hour. Unfortunately, that would only allow me to jam-set the minutes and seconds to zero, and would not correct an hour error- such as when DST starts and stops. Eric, There are a number of easy WWV and GPS projects to drive things like Nixie clocks, etc... from simple microcontrollers like the Microchip PIC and Atmel AVR. Those are a good starting point for a project to set a controller's time remotely. Adding code to the microcontroller to then drive a DTMF encoder (or even an R2R ladder for sine-wave output from multiple digital outputs if your micro is fast enough) to set a controller's time, is fairly simple. One of the
Re: RE: [Repeater-Builder] Dallas Semiconductor Real-Time Clock (Was RC-96 Contr
Eric, You sound as if you are really serious about the time, but then when it comes to getting it you want someone else to do it. Not a very good ARES approach, hi. It would be easy for some controller to have a logic input that says when I go low set the seconds to zero I guess. Might not be good for clock that looses time where it might read 59 seconds when the logic signal is activated. If starting a net at exactly the second is most important I would think someone would take the time to insure this, not a machine. I guess I see such time concerns tend to get in the way of the work to be done...worrying about the little things instead of the big picture. Found this in the Military so much...when you get your rank insignia on proper you can worry about the downed helicopter. 73, ron, n9ee/r From: Eric Lemmon [EMAIL PROTECTED] Date: 2007/11/12 Mon PM 11:14:39 CST To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Dallas Semiconductor Real-Time Clock (Was RC-96 Controller Problem) Nate, I appreciate your suggestions and comments, even though we have differing opinions about accuracy. In my area, starting an ARES or MARS net a minute or two early or late is not acceptable. We pride ourselves at beginning the net exactly on the second. After all, we're Hams, and we have access to WWV, don't we? I realize that some folks on this forum may be rolling their eyes at that statement, but hey- if sloppy operating is okay with them, let them do their thing! My obsession (yes, that's probably what it is!) with time accuracy began when I was Chief Engineer at WLRW, an FM station in Champaign-Urbana, Illinois, back in the late 60's. There was an IGM (International Good Music) automation machine that played music and ran commercials and IDs during the periods when live talent wasn't on the mike. The machine was designed to join the ABC Network News feed every hour on the hour, and being a minute early or late was not an option. The problem was that the AC power was locally generated, and was not synchronized to the national power grid as it is today. Even though the timer in the IGM controller made preparations to join the ABC Network exactly on the hour, the small variations in the AC power frequency caused the connection to be made several seconds off, either early or late, and the station owner was on my case constantly. He didn't want to spring for a Favag or Western Union precision time service, so I cooked up a crystal-controlled power oscillator to drive the IGM schedule timer with a TCXO-stabilized power source. It used a Hewlett-Packard oven time base at 10 MHz as a standard, making it easy to synch to WWV. It was a kluge, to be sure, but it worked. With this background information, perhaps you can understand that all I really need is some signal that occurs at exactly some point in time, every day, that can be used to synchronize a repeater controller automatically. Most real-time clock chips, including those made by Dallas Semiconductor, have sufficient short-term accuracy to flywheel through one day without getting more than a second off. If I can tweak such a clock once a day to bring it to the exact time, that is enough. I really don't want to add phone lines, IRLP links, wireless networks, or anything else to make this happen. It would be great if the next-generation repeater controllers had a BNC or TNC connector on the back labeled GPS antenna or WWVB antenna and all I needed to do was install one simple antenna, and the controller would know the time! 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Nate Duehr Sent: Monday, November 12, 2007 11:57 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Dallas Semiconductor Real-Time Clock (Was RC-96 Controller Problem) Eric Lemmon wrote: Don, The on-the-hour tone is an 800 ms burst of 1500 Hz. I have built a PLL 1500 Hz tone detector into a Hamtronics WWV receiver, and it works fine- giving me a relay contact closure exactly on the hour. Unfortunately, that would only allow me to jam-set the minutes and seconds to zero, and would not correct an hour error- such as when DST starts and stops. Eric, There are a number of easy WWV and GPS projects to drive things like Nixie clocks, etc... from simple microcontrollers like the Microchip PIC and Atmel AVR. Those are a good starting point for a project to set a controller's time remotely. Adding code to the microcontroller to then drive a DTMF encoder (or even an R2R ladder for sine-wave output from multiple digital outputs if your micro is fast enough) to set a controller's time, is fairly simple. One of the local clubs here in town has had such a system for a long time, but hasn't published anything about it. From talking with their techs, they receive WWV at a ham's house, set the clock in the Atmel, and then it
Re: [Repeater-Builder] Re: Possible interference on 146.160
Bearcat IF was 10.85. Had same problem with 449.2 input of a repeater in Akron. It was a Bearcat 250 programmed for 460.050 Akron Police Frequency. You may want to check what you hear on 156.01 MHz. R. D. Reese WA8DBW - Original Message - From: MikeDeWaele To: Repeater-Builder@yahoogroups.com Sent: Monday, November 12, 2007 9:55 PM Subject: RE: [Repeater-Builder] Re: Possible interference on 146.160 Do you own a bearcat scanner? I can't remember the IF freq for them right off hand. 10.8 or 10.7? Maybe even 11. something. I had one that was receiving a channel in the 150's range and every time it stopped on that channel it would lock up the 2 meter freq for the duration that it was stopped on the channel! Drove me nuts for a while till I stumbled on it one day. Lock channel out on scanner and problem went away. Just a thought. Mike KA2NDW
[Repeater-Builder] Re: Uniden sms 930ts
--- In Repeater-Builder@yahoogroups.com, skipp025 [EMAIL PROTECTED] wrote: I did all the sms radio stuff last year on a project and can probably provide some limited information to help you along. Yes they are a pain the fanny to work with, but they can be modified. I also made up a repeater and installed ctcss operation into the unit through an external connection (not easy to do). I was able to get the dos software to work in windows in the MS-Dos mode, but much of that depends on the specific hardware of the computer you install windows 95, 98, 98se onto. back later as time allows... skipp wb7cjq wb7cjq@ wrote: This is a tough one. Not much info. available. I have the programmer schematic, frequency plan (FCC), the programming software, etc. But this is a trunking radio - it doesn't like non-trunked stuff. Just today, after a year's worth of research, I got a pair of them working simplex. As you may or may not know, the trunking units wait for a response from 'daddy' before they'll go key-down. So that was the first hurdle - get TAC working. Done... I'm still learning about these beasts, so can only offer what I've discovered thus far... You probably know most of this already... They are designed to TX below 900, RX in the 935 range. TAC puts the TX up into the 935 range. So, from the TX perspective, these units could easily do 900 ham frequencies. The programming software wants an FCC channel number, then (apparently) the radio translates that into a frequency. I'm not sure about this part just yet... Could be that the software does the translation and ships the result to the radio... Not sure... If you don't already have it, you need the programmer and the software. At least at that point you can get into test mode. Once in test mode, you can adjust squelch, encode/decode levels, etc. Plus, you can get simplex up and running. The test mode data is firmware within the rig - so you can program all you want - break it 9 ways from Sunday - but if you invoke test mode, that data is still right there! This one saved my butt!!! Please advise if I can help at all. RELM has only one guy that knows this radio and the programming software, so, obviously, he's swamped!!! I have a good dialogue going with him, and have nearly all of the stuff that Uniden issued for this particular model. Building a programmer is key. You gotta go do that!!! The Uniden programmer is over $300... I built mine for maybe $10 tops... The circuit uses a MAX-232 chip, 3 2N type transistors, and a run- of-the-mill PNP transistor. Also a 5v regulator of some sort... A few resistors, a few caps., you're done!!! The software wants to run under DOS. NOT a DOS window - PURE DOS. I tried it from numerous versions of Windows, and on numerous PCs. NOPE!!! Boot up via DOS 6.22 and run from a floppy! Trust me - it will save you DAYS' of work!!! I debugged my programmer 4 times before deciding to try the floppy route. Days and days wasted!!! At this point, after a year of fighting with these guys, I'm thrilled to have a signal on the air, anywhere!!! So now, the issue becomes how to move them into the ham band??? According to RELM, there's a data stream issued upon transmit. And, the receiver is looking for a particular data stream as well. There are over 2000 possible combinations. If you're looking to put up an analog squelch type repeater, you're probably going to have to go to the innards of the rig and circumvent the rig's squelch processing - firmware... For a repeater, that's easy - tap the discriminator and build an external COS circuit. I tried this today: Keyed up a different rig on a 900 channel, and then tried to key up the Uniden on the same freq. It refused to go. It also DID NOT open the squelch! So, the receiver is seeing the 900 signal, but the squelch processing is refusing to open the squelch. Hence my recommendation to pick a signal off of the disc. and process it externally. The next oddity is that there's an odd offset built in. 38.9MHz... My freq. counter confirms. And RELM confirms. So, the freq. meter reads 10KHz off from the FCC assigned frequency. Go figure. Now this only happens under certain programming parameters, and this one I still don't understand... I programmed channel 15 into one rig and it came out on the assigned freq. of 935.1875. I ADDED channel 15 to another rig and it came out on 935.1865!!! I reversed the radios, programmed again, etc. --- all day long today - and STILL got these odd results. I finally gave up tonight and programmed both of them back to channel 15 ONLY, and they're BOTH on the assigned freq. according to the freq. counter. Go
Re: [Repeater-Builder] Maxar 80
Gerald Bishop wrote: Hi,all- have a Maxar 80 setting here and wondered why not make a control rec. out of it .Is uhf -L24tbs3015 bm- Think i have it right.Needing an extra rec. for a site control.. Looks to be used for paging ,as it only has a tx crystal in it now. Any thoughts on this project ?? TKS,Jerry w8kq We tried using some for link rx's in a voting system and had trouble getting good audio from them. The raw discriminator audio disappears into a chip, and comes out at speaker level on the other side. The only place it came out was for the volume control, and for our purpose, it was de-emp'd and squelched, and not usable. It might be OK for you. Otherwise, it would probably work alright. not the tightest rx in the world, but better then many. And it's small-ish. They good link tx's though! -- Jim Barbour WD8CHL
Re: [Repeater-Builder] Maxar 80
Hi- just thinking about using it to control,not really program anything.We do this with a lap top, L -L going soon ,so looking in the bin to see what we have .Do have a GE Mastr ll aux. receiver,but would like to keep it for other uses.TKS,Jerry Jim [EMAIL PROTECTED] wrote: Gerald Bishop wrote: Hi,all- have a Maxar 80 setting here and wondered why not make a control rec. out of it .Is uhf -L24tbs3015 bm- Think i have it right.Needing an extra rec. for a site control.. Looks to be used for paging ,as it only has a tx crystal in it now. Any thoughts on this project ?? TKS,Jerry w8kq We tried using some for link rx's in a voting system and had trouble getting good audio from them. The raw discriminator audio disappears into a chip, and comes out at speaker level on the other side. The only place it came out was for the volume control, and for our purpose, it was de-emp'd and squelched, and not usable. It might be OK for you. Otherwise, it would probably work alright. not the tightest rx in the world, but better then many. And it's small-ish. They good link tx's though! -- Jim Barbour WD8CHL - Get easy, one-click access to your favorites. Make Yahoo! your homepage.
[Repeater-Builder] GR300 Repeater Housing - Fan Replacement
Has anyone here ever replaced a fan in a GR300 repeater housing? If so, how tough of a job is it, and is the fan stock? Thanks.
[Repeater-Builder] Re: MSR 2000 UHF band split low band?
Splatter hasn't been a problem yet... from someone doing narrow band operation in more than one very large Metro Area. cheers, s. Jim [EMAIL PROTECTED] wrote: Adjacent channel rejection just isn't adequate for narrowband operation. It will hear splatter from adjacent channel users. Still doesn't restrict the MSR-2000 Repeater Receiver from narrow band operation without modifications. The factory installed xtal filters work just fine as-is. Can't help it if the repeater is not on a magic list as being wide band only operation.
Re: [Repeater-Builder] Maxar 80
Jim wrote: We tried using some for link rx's in a voting system and had trouble getting good audio from them. The raw discriminator audio disappears into a chip, and comes out at speaker level on the other side. The only place it came out was for the volume control, and for our purpose, it was de-emp'd and squelched, and not usable. It might be OK for you. You know what? I think my memory failed me for a bit-now that I think about it, it seems like the volume control is BEFORE the audio chip. so raw discriminator goes through the volume control first, then into the combination squelch/speaker amp chip. And it seemed also like the level at the volume control was too low for either the voter or the 7K controller. -- Jim Barbour WD8CHL
[Repeater-Builder] Re: Uniden SMS 930ts and other Uniden SMS trunking mobile radios
I haven't heard anything from you and I offered some help a while back. Others here don't seem to have a hard time Emailing me and the other group members. Shouldn't be a major problem to reprogram the radio to listen to LTR Systems. Contact me direct if you want more information. Emails are cheap and most times free in many cases. cheers, skipp skipp025 at yahoo.com ocwarren2000 [EMAIL PROTECTED] wrote: I'm still looking for prgrammer / programming data as I only want to use the radio in receive mode as a trunking receiver, no CTSCC nor transmit functions needed. I did buy a Operations / Service Manual, but that is only a start! However I still have had no replies and the email addresses I've tried to respond to are not good. It's kinda frustrating!!! Would really appreciate a reply..!! Best, Dick, W7TIO [EMAIL PROTECTED]
Re: [Repeater-Builder] Help with dead msf 5000
I checked and found these cables intact. I wonder what voltages should be at the 5 pin plug under the control pc board. I have 14vdc on the red and black but nothing on any of the other wires. all fuses on the ps are good. Still dead in the water. - Original Message - From: Andrew G. To: Repeater-Builder@yahoogroups.com Sent: Monday, November 12, 2007 9:33 AM Subject: Re: [Repeater-Builder] Help with dead msf 5000
[Repeater-Builder] Mitrek Voltage Regulator Problem
I have a 50 watt UHF Mitrek drawer unit that I'm going to convert to a repeater for amateur use. Before I start the conversion, however, I wanted to make sure the radio is working as it should. Problem: The output of the voltage regulator is only 9.1 volts instead of 9.5 volts. Question: Is there some component more prone to failure than others that would cause this condition? Here's what I measured: Vin = 13.8 V (as specified on schematic) Vout = 9.1 V (not 9.5 V) Q1006 base = 13.14 V (not 13.0 V) Q1001 base = 0.84 V (not 1.5 V) Q1001 emitter = 0.26 V (not 0.8 V) Q1002 base = 0.68 V (not 0.6 V) I suspect one or more of the components tied to the output line may be going bad which in turn is pulling the voltage down. C1008 could be a likely candidate. Before I begin searching for the culprit by lifting leads, I thought I'd ask if any of you had run into this and could provide me with a shortcut to success. Thanks in advance. Eric, KH6CQ Get easy, one-click access to your favorites. Make Yahoo! your homepage. http://www.yahoo.com/r/hs
Re: [Repeater-Builder] Help with dead msf 5000
Do you have a diagnostic panel? Also, there is a cable with a molex connector on it that goes to the PS.. Is that firmly pluged in? Jim Miller WB5OXQ in Waco wrote: I checked and found these cables intact. I wonder what voltages should be at the 5 pin plug under the control pc board. I have 14vdc on the red and black but nothing on any of the other wires. all fuses on the ps are good. Still dead in the water. - Original Message - *From:* Andrew G. mailto:[EMAIL PROTECTED] *To:* Repeater-Builder@yahoogroups.com mailto:Repeater-Builder@yahoogroups.com *Sent:* Monday, November 12, 2007 9:33 AM *Subject:* Re: [Repeater-Builder] Help with dead msf 5000 -- Jay Urish W5GM ex. KB5VPS ARRL Life MemberDenton County ARRL VEC N5ERS VP/Trustee Monitoring 444.850 PL-88.5 146.92 PL-110.9
[Repeater-Builder] check it out... the rare GE radio is back on eBay
The rare GE MASTR Eleven has returned! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=150182394028 LOL! -- Nate Duehr, WY0X [EMAIL PROTECTED]
Re: [Repeater-Builder] Maxar 80
Hi Jerry We use Maxar 80's for a link from our repeater head end to our IRLP computer, and also I use this link for remote programming of our controller. Works great for us. Randy Elliott VE3JPU Technical Director South Pickering Amateur Radio Club Inc. Box 53 Pickering, Ontario, Canada L1V 2R2 On 12-Nov-07, at 4:59 PM, Gerald Bishop wrote: Hi,all- have a Maxar 80 setting here and wondered why not make a control rec. out of it .Is uhf -L24tbs3015 bm- Think i have it right.Needing an extra rec. for a site control.. Looks to be used for paging ,as it only has a tx crystal in it now. Any thoughts on this project ?? TKS,Jerry w8kq
[Repeater-Builder] Nasty repeater ID...
In the course of gathering information for a complaint to the FCC about an unlicensed business repeater in downtown Chicago on GMRS, one of the members of the local GMRS group expressed his curiosity about what brand repeater we might be hearing (as well as why they needed a gain antenna and at LEAST 50 watts on a 50-story skyscraper for in-building coverage... I can hear 'em on my HT 25 miles away!) This repeater has the nastiest-sounding ID (bogus or long-expired) that I have ever heard... it almost sounds like on-off keying of the carrier while modulated by a tone. Either that, or a really high-level square wave. It actually almost hurts to listen to. I can send a WAV file if anyone wants to hear it. Any ideas? George, KA3HSW / WQGJ413
Re: [Repeater-Builder] Nasty repeater ID...
George Henry wrote: In the course of gathering information for a complaint to the FCC about an unlicensed business repeater in downtown Chicago on GMRS, one of the members of the local GMRS group expressed his curiosity about what brand repeater we might be hearing (as well as why they needed a gain antenna and at LEAST 50 watts on a 50-story skyscraper for in-building coverage... I can hear 'em on my HT 25 miles away!) This repeater has the nastiest-sounding ID (bogus or long-expired) that I have ever heard... it almost sounds like on-off keying of the carrier while modulated by a tone. Either that, or a really high-level square wave. It actually almost hurts to listen to. I can send a WAV file if anyone wants to hear it. Any ideas? Severely over deviated probably...yeah, throw a wav file up in the files section or get it to one of the mods to upload. -- Jim Barbour WD8CHL
[Repeater-Builder] Re: check it out... the rare GE radio is back on eBay
Yep Nate. Those pictures there are definitely of a much newer radio than I have. hehehehehe Laryn K8TVZ --- In Repeater-Builder@yahoogroups.com, Nate Duehr [EMAIL PROTECTED] wrote: The rare GE MASTR Eleven has returned! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=150182394028 LOL! -- Nate Duehr, WY0X [EMAIL PROTECTED]
Re: [Repeater-Builder] Re: check it out... the rare GE radio is back on eBay
I, also, bought from him. First and last time! I bought 7 Midland mobiles, with a few other odd pieces, which he just threw into a cardboard box. Of the 7 radios, 4 were physically damaged from shipping. Dennis Bridgeman KCØFWN Bridgeman Communications 202 Seventh Street Carmi, IL 62821 http://bridgemancommunications.com - Original Message - From: wb6ymh To: Repeater-Builder@yahoogroups.com Sent: Tuesday, November 13, 2007 2:55 PM Subject: [Repeater-Builder] Re: check it out... the rare GE radio is back on eBay --- In Repeater-Builder@yahoogroups.com, Nate Duehr [EMAIL PROTECTED] wrote: The rare GE MASTR Eleven has returned! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=150182394028 LOL! I've bought from that guy before. Nice guy, but he would mail eggs in an envelope! Luckily I bought Mitreks from him which are rectangular and hard to break. The postperson dropped the unpadded cardboard box on my concrete front porch before I could get to the door, maybe that's where that crack same from. 73's Skip WB6YMH
Re: [Repeater-Builder] Maxar 80
Hi- That was what I had in mind also. If it will work in this use. Have to find out more about the one I have. Tks,jerry Randy Elliott [EMAIL PROTECTED] wrote:Hi Jerry We use Maxar 80's for a link from our repeater head end to our IRLP computer, and also I use this link for remote programming of our controller. Works great for us. Randy Elliott VE3JPU Technical Director South Pickering Amateur Radio Club Inc. Box 53 Pickering, Ontario, Canada L1V 2R2 On 12-Nov-07, at 4:59 PM, Gerald Bishop wrote: Hi,all- have a Maxar 80 setting here and wondered why not make a control rec. out of it .Is uhf -L24tbs3015 bm- Think i have it right.Needing an extra rec. for a site control.. Looks to be used for paging ,as it only has a tx crystal in it now. Any thoughts on this project ?? TKS,Jerry w8kq - Get easy, one-click access to your favorites. Make Yahoo! your homepage.
Re: [Repeater-Builder] GR300 Repeater Housing - Fan Replacement
Tony, It's been a while since I've opened a GR300 case but I do remember it being nothing more than a standard 4 Fan in the back. Just about any should do the trick. You might want to re-mount your fan to the outside of the case for easy replacement/cleaning (thats what we did to avoid ripping everything apart). Andy KC2GOW - Original Message From: Tony L. [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, November 13, 2007 11:44:04 AM Subject: [Repeater-Builder] GR300 Repeater Housing - Fan Replacement Has anyone here ever replaced a fan in a GR300 repeater housing? If so, how tough of a job is it, and is the fan stock? Thanks. Be a better pen pal. Text or chat with friends inside Yahoo! Mail. See how. http://overview.mail.yahoo.com/
[Repeater-Builder] Re: check it out... the rare GE radio is back on eBay
That's JR in Arizona... good enough guy if you have a problem with him. I've bought a ton of stuff from him and it's always arrived fast and pretty well packed. So like many an Ebay Deal one sometimes needs to express how they would like their items well packed. I also bought a large number of Mitreks from him... t'was a great deal. cheers, s. Dennis Bridgeman [EMAIL PROTECTED] wrote: I, also, bought from him. First and last time! I bought 7 Midland mobiles, with a few other odd pieces, which he just threw into a cardboard box. Of the 7 radios, 4 were physically damaged from shipping. Nate Duehr nate@ wrote: The rare GE MASTR Eleven has returned! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=150182394028 LOL! I've bought from that guy before. Nice guy, but he would mail eggs in an envelope! Luckily I bought Mitreks from him which are rectangular and hard to break. The postperson dropped the unpadded cardboard box on my concrete front porch before I could get to the door, maybe that's where that crack same from. 73's Skip WB6YMH
[Repeater-Builder] Current Draw of MSF 5000 UHF
Hi, Does anyone happen to know the current draw on transmit of a 100W UHF Moto MSF5000. The VA rating on the sticker calculates out to around 8A. I just want to be sure before I go plugging it in and tripping a circuit. Thanks Andrew KC2EUS / GM1YMI
Re: [Repeater-Builder] Current Draw of MSF 5000 UHF
That's a pretty good number. They use ferro-resonant power supplies which are notoriously inefficient. My 75w UHF station draws about 6 amps when transmitting. The 110w supply is rated for 625 watts output, so figure at best about 70% efficiency and you're up near 900 watts AC input. If you need an exact value, I can fire up a station and measure it. Best place for one of these stations is at a site where YOU do NOT have to pay for the electricity ! Bob M. == --- Andrew [EMAIL PROTECTED] wrote: Hi, Does anyone happen to know the current draw on transmit of a 100W UHF Moto MSF5000. The VA rating on the sticker calculates out to around 8A. I just want to be sure before I go plugging it in and tripping a circuit. Thanks Andrew KC2EUS / GM1YMI Be a better pen pal. Text or chat with friends inside Yahoo! Mail. See how. http://overview.mail.yahoo.com/
[Repeater-Builder] GR300 Repeater Housing - Fan Replacement
Tony, I happen to have a GR300 repeater open on the bench. The fan in this unit is a Nidec Beta V device carrying several part numbers: TA450DC, B33211-63A, and 93014 MOT. It is rated at 12 VDC and 0.49 A. Curiously, none of the above part numbers are listed on MOL, and the GR300 service manual does not list the fan as a replacement part. Of major significance is the fact that the fan has been modified by Motorola to include a thermistor to sense the heat-sink temperature of the transmit radio. Although the fan was sitting in a cool environment, it ran at full speed when I applied 12 VDC to its power plug. Maybe there's a problem in this fan circuit! I think you should be able to replace the existing fan with a good-quality, low-EMI unit from Panasonic that runs at a very low speed. Otherwise, install a simple thermal switch on the transmit radio's heat sink to control the fan. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Tony L. Sent: Tuesday, November 13, 2007 8:44 AM To: Repeater-Builder@yahoogroups.com Subject: [Norton AntiSpam] [Repeater-Builder] GR300 Repeater Housing - Fan Replacement Has anyone here ever replaced a fan in a GR300 repeater housing? If so, how tough of a job is it, and is the fan stock? Thanks.
[Repeater-Builder] New file uploaded to Repeater-Builder
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the Repeater-Builder group. File: /sound bytes/IDer.wav Uploaded by : ka3hsw [EMAIL PROTECTED] Description : NASTY sounding repeater ID'er You can access this file at the URL: http://groups.yahoo.com/group/Repeater-Builder/files/sound%20bytes/IDer.wav To learn more about file sharing for your group, please visit: http://help.yahoo.com/help/us/groups/files Regards, ka3hsw [EMAIL PROTECTED]
Re: [Repeater-Builder] Current Draw of MSF 5000 UHF
And while the MSFs have an IEC power connector DO NOT use a wimpy computer power cord. Go to an industrial supplier and get a good husky IEC power cord ( #8 wire if you can get it, #10 if you can't, or #12 if it's a really short run). I've seen a couple of MSFs where the owner obviously could not locate a IEC cord with husky enough wire to satisfy him (not everyone has access to big-city electrical supply houses). On those two units the IEC was removed and replaced with a cut down piece of steel plate that looked almost like a piece of an outlet box blank cover plate . A three foot piece of three conductor #8 or #10 cable hung out of a grommet with a 3 conductor twist lock plug on the end. Mike WA6ILQ At 05:52 PM 11/13/07, you wrote: That's a pretty good number. They use ferro-resonant power supplies which are notoriously inefficient. My 75w UHF station draws about 6 amps when transmitting. The 110w supply is rated for 625 watts output, so figure at best about 70% efficiency and you're up near 900 watts AC input. If you need an exact value, I can fire up a station and measure it. Best place for one of these stations is at a site where YOU do NOT have to pay for the electricity ! Bob M. == --- Andrew [EMAIL PROTECTED] wrote: Hi, Does anyone happen to know the current draw on transmit of a 100W UHF Moto MSF5000. The VA rating on the sticker calculates out to around 8A. I just want to be sure before I go plugging it in and tripping a circuit. Thanks Andrew KC2EUS / GM1YMI Be a better pen pal. Text or chat with friends inside Yahoo! Mail. See how. http://overview.mail.yahoo.com/ Yahoo! Groups Links
Re: [Repeater-Builder] Help with dead msf 5000
At 09:05 PM 11/11/07, you wrote: I bought a msf 5000 cxb vhf station for my club to build a repeater. this unit was rack mounted along with several public safety repeaters so I did not get it in the original cabinet. I was shipped the power supply, the pa and the rf deck with controller. Before shipping the seller removed a secure board because hams do not usually need them and we dont. I reasembled the unit in a 4' GE cabinet and connected all the cables that were sent to me as best as i could figure out without any instructions. When i plug the station in the 12 vdc cooling fans come on but the control deck is dead. I found 1 cable that came from the power supply and plugged it into a jack on the rear of the rf deck and another cable that went to the pa from the rf deck. I also found and connected the rf cables as needed. There are still some left over connecter pins on the pc board at the rear of the rf deck that I do not know what is supposed to be connected to. Inside the control deck I see what looks like a 5 pin connector coming from the rf deck and it does contain 13.2 vdc on the red and black wires. Something must be missing causing the controler not to light up at all. Cam anyone supply me a interconnect diagram so I can see if i have a missing cable. WB5OXQ. Look here: http://www.repeater-builder.com/motorola/msf/msf-secure-board-removal.html Mike
[Repeater-Builder] Re: check it out... the rare GE radio is back on eBay
--- In Repeater-Builder@yahoogroups.com, skipp025 [EMAIL PROTECTED] wrote: That's JR in Arizona... good enough guy if you have a problem with him. I've bought a ton of stuff from him and it's always arrived fast and pretty well packed. So like many an Ebay Deal one sometimes needs to express how they would like their items well packed. I also bought a large number of Mitreks from him... t'was a great deal. cheers, s. Yea, I was happy too considering the deal. He doesn't charge a ton for shipping so it's a case of you get what you pay for. I bought a total of 4 Mitreks (two shipments of two to the unpadded box) and 3 of the 4 worked perfectly, one had a deaf receiver. No shipping damage which is a testament to mother Motorola of 25 years ago. 73's Skip WB6YMH
[Repeater-Builder] Re: Astron Power Supply
Email me and I'll reply with a PDF of those pages from the manual. I'm not good at explaining even simple things. My email address is tallinson2 att yahooo dott kom. (All spelled correctly). Tom --- In Repeater-Builder@yahoogroups.com, dallasreact112 [EMAIL PROTECTED] wrote: Has any one had experience with setting output voltage on an Astron RM-50M power supply? I'd like to bump up the voltage to 14.4 V to override a diode junction loss in a battery isolator. Does it have the room to be adjusted up? Thanks Bernie Parker K5BP
[Repeater-Builder] For Sale: LeBlanc Royal Tower
I am posting this for a fellow ham as he doen't have internet access. I do not own this tower and it is not in my possession. He has for sale 130 feet of guyed Baby Leblanc and Royal tower that has been taken down and is on the ground. Included are the tower guy stations and the base plate. This is commercial tower that was taken down by him. This tower is very heavy and you will have to arrange your own shipping from its current location. The tower is located in Whitby, Ontario, about 20 minutes east of Toronto, Ontario. Asking price is $500.00. If you are interested, please contact me, Eric, VA3EAM off list and I can give you his contact information. Thanks, Eric, VA3EAM.
Re: [Repeater-Builder] Help with dead msf 5000
I do not have the test device for this model. the connecter from the power supply to the rf deck is intact at both ends. I believe this unit was working when removed from service but after the seller removed the secure audio board I suspect some jumper or cable of some kind much have been left out accidentally. I cant imagine what though. I hate to take it to the Motorola shop at 95.00 per hour. I am real sad that this wont work because I thought it would make a real good 2 meter repeater for our club. the seller says he is sorry but things happen and that is why he sold it as is. I just wish there was a ham who would help within a reasonable driving distance of Waco, TX and I would take the unit to him for help. - Original Message - From: Jay Urish To: Repeater-Builder@yahoogroups.com Sent: Tuesday, November 13, 2007 11:48 AM Subject: Re: [Repeater-Builder] Help with dead msf 5000 Do you have a diagnostic panel? Messages | Files | Photos | Links | Members Change settings via the Web (Yahoo! ID required) Change settings via email: Switch delivery to Daily Digest | Switch format to Traditional Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe Recent Activity a.. 25New Members b.. 18New Photos c.. 1New Files Visit Your Group Moderator Central Yahoo! Groups Join and receive produce updates. Biz Resources Y! Small Business Articles, tools, forms, and more. Endurance Zone A Yahoo! Group Learn how to increase endurance. .
[Repeater-Builder] Vertex VX-2000
Hi to everyone. I have a Vertex VX-2000, and I want to use it as a repeater, but the terminal 1 in the female DB 9 connector (Squelch Output) has a 0.34V when there is no carrier, and 0 V when there is a signal... I have seen in this group that somebody (excuse me I don't remember who) posted a pdf part of the radio manual, and it says that there are 5V when a signal is received and 0 V when there si no carrier... What can I do to fix my radio, to change thos 0.34 V to 5 V and then can activate my repeater? David XE1REW.
