Re: [Repeater-Builder] Re: Battery backup
The Powergate PG40S is sold by West Mountain Radio see: http://www.westmountainradio.com/SuperPWRgate.htm; (delete the quote marks) Charles, KB3CEZ --- Doug Zastrow [EMAIL PROTECTED] wrote: Hi Doug, I found what I believe to be the Powergate web site at http://www.powergatellc.com/ but could not find the PW40S under any of the categories listed nor through product no. search. Am I at the right web site? Any hints on finding this model? Doug Z. - Original Message - From: Doug Dickinson To: Repeater-Builder@yahoogroups.com Sent: Tuesday, January 09, 2007 7:18 PM Subject: [Repeater-Builder] Re: Battery backup The best arrangement I have seen so far is the Powergate PW40S which has the built-in 3 stage charger. I have used them and they are really good with a zero time switchover so none of the little electrons in the controller get confused and reset or worse, lockup the controller. It also charges the battery the RIGHT way, with a 3 stage charger. It can be duplicated I am sure, but at the price, I just would buy it and spend the time tinkering with the RF for a good repeater. IMHO Doug KC0SDQ Do you Yahoo!? Everyone is raving about the all-new Yahoo! Mail beta. http://new.mail.yahoo.com
[Repeater-Builder] Re: temperature control circuit
At 1/8/2007 15:22, you wrote: Hi Bob, I would like to get a copy of that circuit if you have one available. Thanks, OK, here is the circuit I used. The original National Semiconductor circuit had a 30 K resistor in series with a 400 uF cap., both in parallel with the 100 K resistor on the input of the 1st LM324 section. I found that combo to actually destabilize the operation of the controller for this particular application, so I removed them changed the 2 uF cap in series with the 10 megohm resistor to 5 uF. That cap is a non-polarized paper capacitor; I believe a 4.7 uF non-polarized ceramic should work as well. The 1/4 watt heater resistor LM34 temperature sensor are mounted on the same side of the crystal but separated as far apart as possible. Bob NO6B 445.46 TX temp. stabilization.png Description: PNG image
RE: [SPAM] Re: [Repeater-Builder] Re: Battery backup
This is what he was talking about. http://www.westmountainradio.com/SuperPWRgate.htm -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Doug Zastrow Sent: Wednesday, January 10, 2007 10:23 PM To: Repeater-Builder@yahoogroups.com Subject: [SPAM] Re: [Repeater-Builder] Re: Battery backup Hi Doug, I found what I believe to be the Powergate web site at http://www.powergatellc.com/ but could not find the PW40S under any of the categories listed nor through product no. search. Am I at the right web site? Any hints on finding this model? Doug Z. - Original Message - From: Doug Dickinson mailto:[EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, January 09, 2007 7:18 PM Subject: [Repeater-Builder] Re: Battery backup The best arrangement I have seen so far is the Powergate PW40S which has the built-in 3 stage charger. I have used them and they are really good with a zero time switchover so none of the little electrons in the controller get confused and reset or worse, lockup the controller. It also charges the battery the RIGHT way, with a 3 stage charger. It can be duplicated I am sure, but at the price, I just would buy it and spend the time tinkering with the RF for a good repeater. IMHO Doug KC0SDQ
[Repeater-Builder] Data Sheet for Decibel Duplexer SP5998.
Anyone have a Data Sheet for Decibel Duplexer SP5998? Kent W7AORatNARRI.ORG
[Repeater-Builder] Link Communications Pre-Release Announcement
Link Communications introduces a new addition to its repeater controller family. The RLC Digital Controller (yet to be named) builds upon the proven RLC-3 and RLC-Club designs, while providing advanced features that aren't available in any other product. There are some things that we can already tell you about the design, some things that we haven't settled on yet, and some things we won't talk about until later :) We are looking for input to ensure that the new system includes the features that are most important to you, our customers. Among the features that we can talk about: The audio path will be digital (48K samples/second, better than CD quality). This will allow many features to be implemented without additional hardware (digital audio delay, voice recording/storage,squelch, etc) and without any loss of audio quality. Voice library can be easily updated or extended using standard .wav files. New Windows (tm) control software will make reconfiguring things on the fly simple, and will provide real-time status, indicating exactly what is going on at each moment. Improved firmware will retain the flexibility of the RLC-3 and RLC-Club series of controllers while making advanced features easier to use. Some of the improvements may also show up in a firmware update for those controllers. Modular design will allow easy expansion in increments of four ports (4, 8, 12...). Integrated Ethernet network interface will enable remote management (which can be done over the serial port as well), as well as VoIP/RoIP (Voice/Radio Over IP), over the Internet or a private network. Of course the controller will work without a network connection, but those features won't be available. Some of the features we could use feedback about include: A good name for the new controller. Type of front-panel display you prefer: LEDs for each signal (similar to current controllers), or an interactive LCD display? Remember that a computer running the new management software will provide real-time status too. Frequency-controllable remote base radios: What brand and model of remote base radio you are most likely to use (Icom IC-706, Yaesu FT-900, Kenwood TS-440...)? How many serial ports are needed? Typically each remote base radio needs a serial port for control. Is it worth adding dedicated 1/8 connectors for Icom CI-V radios such as the IC-706/7000, or is it better to just use pins on the DB-9 radio port connectors for the serial signals? Desired use for VoIP/RoIP features: Monitoring the repeater from a computer running the management software. Point to point links between radio sites (replacing RF links or linking sites that weren't close enough to link with RF). Interfacing to other VoIP/RoIP networks. If you would use this feature, which systems would you want to interface with (IRLP, Echolink, D-Star...)? These interfaces would probably be options. Number/type of I/O lines for site telemetry (remember that these require hardware and therefore affect production cost). Audio adjustments: Should the major transmitter and receiver level adjustments be made with physical pots or software-controlled pots? The advantage of physical pots is that you can just grab a screwdriver and adjust them without having to go though some kind of user interface (minor level tweaks would still be possible through software). The advantage of software-controlled pots is that you can make even major level adjustments remotely. If the physical pots were accessible without opening the case would it change your answer? Things we aren't talking about yet :) Subaudible tone (PL/DPL) Price Release date (stop and see us at the Dayton Hamvention for more, hint, hint...) If you have thoughts, ideas, questions, or want updated information, see http://digitalrlc.link-comm.com. We will try to keep that web page up to date with any new information and with answers to your questions (at least to the ones we are willing to talk about :). Allan Overcast KF7FW Link Communications, Inc. - Check out the all-new Yahoo! Mail beta - Fire up a more powerful email and get things done faster.
[Repeater-Builder] Spectra TAC question
Has anyone had much luck with a specra tac voter? I found one at a good price, but I was wanting to know if it would be worth messing with for my amateur repeater. I was told that they require a 100% transmit on the links, but someone else also told me that they could be used normally as well. (when a remote receives a signal, the link keys up) Any info at all would be appreciated. Thanks, Jordan
RE: [Repeater-Builder] Spectra TAC question
Jordan, You are correct when you say that, in *standard* configuration, they do require a 100% status tone on the line. HOWEVER, there was a discussion a while back about using the SpectraTAC system and modifying it so you didn't need the status tone to vote... but I can't find where that was right now. If my memory serves me (and at times, it doesn't grin) the mod wasn't all that involved. I use a SpectraTAC system on my 444.550 machine, but I also have a definite advantage in that the county where the repeater is located is allowing me to use up to three voice channels on their microwave backbone (MUX?) to bring remote RX audio back to the comparator at main repeater. So I'm using the status tone. ;-) I only experienced two issues with my system - power supply failures in the receivers (I've had to rebuild two of them so far), and SQM cards. This is probably due to the fact that this came out of an old VHF Low band system that was in use since the early 70's. (And yes, I did convert the receivers over to UHF with different RX boards. Plug and play for the most part...) The replacement electrolytic caps (23D83093G13) I received from Motorola were substantially larger (physically) than the ones that came out of the old power supply, so I had to modify the receiver cabinet (cut a notch) so the supply would go back into the cabinet after the repair. But there isn't even a HINT of AC in with the DC voltage now. (Saw 0.9VAC on the 13.8VDC before the repair... caused the status tone to vary all over the place.) hehehehe I've also rebuilt five of my SQMs - I had a total of six altogether - so I now have what I hope will be good spares... Had to replace the 3 electrolytic caps on the boards - the electrolyte was actually coming out of the ends of the caps. Check them - the aging effects will be visible. (Or at least they were to me...) One caution - I was told by a Motorola tech NOT to mess around with (i.e., replace) the one 2% tolerance cap the board. Apparently changing it can wreak havoc in trying to get the card working properly again if you don't get the exact same value. Interfacing it to my Kenwood TKR-820 repeater was a bit of a challenge, but has been successfully done - thanks to the assistance of those here on the list. Good luck - and I'm sure someone here will be able to remember the discussion about the modification better than I. Sorry... 73 de Mark - N9WYS -Original Message- From: Repeater-Builder@yahoogroups.com On Behalf Of twoway_tech Has anyone had much luck with a specra tac voter? I found one at a good price, but I was wanting to know if it would be worth messing with for my amateur repeater. I was told that they require a 100% transmit on the links, but someone else also told me that they could be used normally as well. (when a remote receives a signal, the link keys up) Any info at all would be appreciated. Thanks, Jordan
Re: [Repeater-Builder] Re: temperature control circuit
Thanks for sharing your circuit, Bob... Have you done any measurements to see how constant the temperature is maintained over time? Looks like a neat little circuit for a couple of other applications. 73, Tony W4ZT [EMAIL PROTECTED] wrote: At 1/8/2007 15:22, you wrote: Hi Bob, I would like to get a copy of that circuit if you have one available. Thanks, OK, here is the circuit I used. The original National Semiconductor circuit had a 30 K resistor in series with a 400 uF cap., both in parallel with the 100 K resistor on the input of the 1st LM324 section. I found that combo to actually destabilize the operation of the controller for this particular application, so I removed them changed the 2 uF cap in series with the 10 megohm resistor to 5 uF. That cap is a non-polarized paper capacitor; I believe a 4.7 uF non-polarized ceramic should work as well. The 1/4 watt heater resistor LM34 temperature sensor are mounted on the same side of the crystal but separated as far apart as possible. Bob NO6B
[Repeater-Builder] SpectraTAC group
Is this group defunct? I posted a message a couple of weeks ago, and it hasn't posted yet. I reported that I had to repair a couple of my SpectraTAC receiver power supplies, and that the new replacement electrolytic caps I received from Motorola were substantially larger than the ones that came out. These caps are the ones that mount to the chassis itself and not the circuit board. The end result was that it required me to cut a notch in the top of the receiver shelf to allow the power supply to fit back in when reinstalled. (The cap is about 1/8 too tall...) Mark - N9WYS
[Repeater-Builder] Re: Battery backup
Try this link: http://www.westmountainradio.com/SuperPWRgate.htm Doug
Re: [Repeater-Builder] Radio Tone Control
Kent, It would be beneficial to know exactly what you wish to achieve, and to know more about your project/requirements so that I can be of more assistance. The VX-4200 is a very versatile radio and can preform numerous remote control functions. Cheers _ Gareth Bennett This e-mail is confidential, if you received this message in error, or you are not the intended recipient, please return it to the sender and destroy any copies. Thank you. - Original Message - From: Kent Chong To: Repeater-Builder@yahoogroups.com Sent: Wednesday, January 10, 2007 11:45 PM Subject: Re: [Repeater-Builder] Radio Tone Control Dear Gareth, We are using VX-4200 series and ICOM IC-F521 or F621 radio. Would like to know more how you do it. We know the VX-4200 has a DB15. How do we control the radio via the audio line? Best Regards, Chong Kwan Meng - Original Message From: Gareth Bennett [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, 9 January 2007 6:14:39 PM Subject: Re: [Repeater-Builder] Radio Tone Control Vertex Standard VX-2200 and 4200 series radios can be channel changed via BCD addressible pins from the rear sub DB15. We utilise a UHF link radio (VX-2200 or 4200) to send 5 Tone commands that can be addressed via a configurable BCD output that can change the frequency and of course pass through the appropriate audio. Let me know if this is the down the track that you are interested in, and I can supply you more info. _ _ _ _ _ Gareth Bennett This e-mail is confidential, if you received this message in error, or you are not the intended recipient, please return it to the sender and destroy any copies. Thank you. - Original Message - From: Vincent Caruso To: Repeater-Builder@ yahoogroups. com Sent: Tuesday, January 09, 2007 6:47 PM Subject: Re: [Repeater-Builder] Radio Tone Control Some info can be found on the Midian site in pdf at the following link http://www.midians. com/pdf/tone_ signaling. pdf Telex has some info on their site as well, but most common commercial gear only interfaces to certain radios for multiple channel control otherwise you are limited to one two or four channel remotes. Vince Kent Chong wrote: Hello, Would like to control ICOM, and Vertex radio remotelly by using the tone, for example, change channel, PTT etc. Anybody know the remote control tone standard? Where could I find the informtion? Best Regards, Chong Kwan Meng Send instant messages to your online friends http://asia. messenger. yahoo.com Send instant messages to your online friends http://asia.messenger.yahoo.com
Re: [Repeater-Builder] Re: temperature control circuit
At 1/11/2007 08:38 AM, you wrote: Thanks for sharing your circuit, Bob... Have you done any measurements to see how constant the temperature is maintained over time? Looks like a neat little circuit for a couple of other applications. 73, Tony W4ZT Measuring the LM34's output, it was very good: less than 0.2 °F change. Keep in mind that other applications will probably require a different feedback loop. The 400 µF cap 30 k resistor I removed across the 100 k resistor were probably for controlling much larger systems with longer time lags between the heater sensor. Bob NO6B
Re: [Repeater-Builder] Re: temperature control circuit
At 1/11/2007 06:48 AM, you wrote: The 1/4 watt heater resistor LM34 temperature sensor are mounted on the same side of the crystal but separated as far apart as possible. I forgot to mention that thermally conductive epoxy was used to mount the LM34 51 ohm 1/4 watt heater resistor onto the crystal. Bob NO6B
Re: [Repeater-Builder] Spectra TAC question
Jordan, Mark, et al, I have a some of information on the subject of using the Motorola Spectra-TAC voter in a non-Motorola environment. Unfortunately, this information exists in many emails and is not a complete representation of all of the concepts that were discussed in a past thread. That being said, I will offer to either forward the emails I have or make a web page (as hap-hazard as it may be) to convey the information I gathered on the subject. Since I never completed the voter project I set out to do, it is only information and guidelines and won't be the detailed conversion article I would rather it be. Let me know and I'll put something together... Kevin Custer N9WYS wrote: Jordan, You are correct when you say that, in *standard* configuration, they do require a 100% status tone on the line. HOWEVER, there was a discussion a while back about using the SpectraTAC system and modifying it so you didn't need the status tone to vote... but I can't find where that was right now. If my memory serves me (and at times, it doesn't grin) the mod wasn't all that involved. I use a SpectraTAC system on my 444.550 machine, but I also have a definite advantage in that the county where the repeater is located is allowing me to use up to three voice channels on their microwave backbone (MUX?) to bring remote RX audio back to the comparator at main repeater. So I'm using the status tone. ;-) I only experienced two issues with my system - power supply failures in the receivers (I've had to rebuild two of them so far), and SQM cards. This is probably due to the fact that this came out of an old VHF Low band system that was in use since the early 70's. (And yes, I did convert the receivers over to UHF with different RX boards. Plug and play for the most part...) The replacement electrolytic caps (23D83093G13) I received from Motorola were substantially larger (physically) than the ones that came out of the old power supply, so I had to modify the receiver cabinet (cut a notch) so the supply would go back into the cabinet after the repair. But there isn't even a HINT of AC in with the DC voltage now. (Saw 0.9VAC on the 13.8VDC before the repair... caused the status tone to vary all over the place.) hehehehe I've also rebuilt five of my SQMs - I had a total of six altogether - so I now have what I hope will be good spares... Had to replace the 3 electrolytic caps on the boards - the electrolyte was actually coming out of the ends of the caps. Check them - the aging effects will be visible. (Or at least they were to me...) One caution - I was told by a Motorola tech NOT to mess around with (i.e., replace) the one 2% tolerance cap the board. Apparently changing it can wreak havoc in trying to get the card working properly again if you don't get the exact same value. Interfacing it to my Kenwood TKR-820 repeater was a bit of a challenge, but has been successfully done - thanks to the assistance of those here on the list. Good luck - and I'm sure someone here will be able to remember the discussion about the modification better than I. Sorry... 73 de Mark - N9WYS -Original Message- From: Repeater-Builder@yahoogroups.com On Behalf Of twoway_tech Has anyone had much luck with a specra tac voter? I found one at a good price, but I was wanting to know if it would be worth messing with for my amateur repeater. I was told that they require a 100% transmit on the links, but someone else also told me that they could be used normally as well. (when a remote receives a signal, the link keys up) Any info at all would be appreciated. Thanks, Jordan
RE: [Repeater-Builder] Spectra TAC question
Hi, Kevin I'm pretty sure that's how I followed the conversation, too. However, Jordan was the one who was actually looking for the information on how to do it. My system is up and running happily with the status tone - and since the county radio system is allowing me to piggyback my audio on their microwave backbone, there was no need for me to convert. But it looks like Jordan might be investigating the use of remote radio links and may need that info for his project. Mark - N9WYS -Original Message- From: Repeater-Builder@yahoogroups.com On Behalf Of Kevin Custer Jordan, Mark, et al, I have a some of information on the subject of using the Motorola Spectra-TAC voter in a non-Motorola environment. Unfortunately, this information exists in many emails and is not a complete representation of all of the concepts that were discussed in a past thread. That being said, I will offer to either forward the emails I have or make a web page (as hap-hazard as it may be) to convey the information I gathered on the subject. Since I never completed the voter project I set out to do, it is only information and guidelines and won't be the detailed conversion article I would rather it be. Let me know and I'll put something together... Kevin Custer
Re: [Repeater-Builder] Spectra TAC question
Hi Guys, We run Motorola SpectraTac on all of our systems. I also use some with normal staus tone operation and some set up for fixed gain with cor from the link receivers. These run fine mixed mode in the same comparator. I have the details on the mods that I came up with for the SQM's if it would help anyone. Glenn W8AK
Re: [Repeater-Builder] Spectra TAC question
[EMAIL PROTECTED] wrote: Hi Guys, We run Motorola SpectraTac on all of our systems. I also use some with normal staus tone operation and some set up for fixed gain with cor from the link receivers. These run fine mixed mode in the same comparator. I have the details on the mods that I came up with for the SQM's if it would help anyone. Glenn W8AK Yes please... I'll assemble the whole thing into a web article giving credit to those who help contribute. Send to [EMAIL PROTECTED] orw3kkc at repeater (dash) builder dot khom Pictures, Text, PDF's, First Born Kevin
[Repeater-Builder] MAXTRAC BACK TO BACK
Dear friends I would like to know how to make a back to back link with tone descrimination using two maxtrac radios, some one say me that I have to use a bidirectional control tone pannel I hope someone help me regards Patricio Vallejo
Re: [Repeater-Builder] Re: temperature control circuit
This thread is now a web article: http://www.repeater-builder.com/construction-proj/no6b-crystal-heater.html Kevin Custer Bob Dengler wrote: At 1/11/2007 06:48 AM, you wrote: Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII The 1/4 watt heater resistor LM34 temperature sensor are mounted on the same side of the crystal but separated as far apart as possible. I forgot to mention that thermally conductive epoxy was used to mount the LM34 51 ohm 1/4 watt heater resistor onto the crystal. Bob NO6B
Re: [Repeater-Builder] Spectra TAC question
Yes please assemble the Spectra Tac info. I actually have a comparator and receiver shelf on my bench working on a way to use the two (and more recievers) without the status tone. I have heard of people inserting the status tone at the link receiver end, and several other ideas. So, I would like to hear some other ideas.
Re: [Repeater-Builder] Spectra TAC question
Steve Kometz wrote: Yes please assemble the Spectra Tac info. I actually have a comparator and receiver shelf on my bench working on a way to use the two (and more recievers) without the status tone. I have heard of people inserting the status tone at the link receiver end, and several other ideas. So, I would like to hear some other ideas. I'm working on it Watch here for the announcement of the URL... Kevin As promised http://www.repeater-builder.com/motorola/spectra-tac/spectra-tac-notes-w3kkc.html Thanks to those who have provided so far... Kevin
[Repeater-Builder] New articles on repeater-builder
There are some new articles in the Motorola section of www.repeater-builder.com in the following areas: MaxTrac, MSF5000, Spectra Also some new stuff in the Construction Projects area. New topics are always welcome. Bob M. Any questions? Get answers on any topic at www.Answers.yahoo.com. Try it now.
Re: [Repeater-Builder] Spectra TAC question
Hi Kevin, I found my prints. I have modified schematics and board layouts of the SQM. I will scan them in the morning at work and try to send them to you. Glenn W8AK
RE: [Repeater-Builder] has anyone got
Steve, I have an NHRC-2 For Sale Royce -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] Behalf Of Steve Sent: Wednesday, January 10, 2007 7:21 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] has anyone got Hi has anyone got an NHRC 3 or 4,or something comparable for sale and is willing to post to the UK. I need a cheap controller for a project. 73 Steve
[Repeater-Builder] Re: Spectra TAC question
Thanks Kevin and mark for your help so far. I have ALOT of research to do and ALOT more questions to ask before I decide exactly what I am going to do for a voter system. I appreciate your time and support. -Jordan
