RE: [Repeater-Builder] Wacom WP-639 Duplexer question
Hi Scott, can you give me some more information on circulators, or where can I get such information and prices. -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of DCFluX Sent: Thursday, September 09, 2010 2:03 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Wacom WP-639 Duplexer question An additional 20dB of isolation can be realized by replacing the antenna Tee connector with a circulator. Port A to B tuned to the TX frequency, Port B to C tuned to the RX frequency. Connect TX to port A, antenna to B, Receiver to C. I'm using a set of WP-639 and with this setup I am seeing approx 102dB of rejection from the TX to RX port and 97dB the other way. On Wed, Sep 8, 2010 at 8:40 PM, Scott Zimmerman n3...@repeater-builder.com mailto:n3xcc%40repeater-builder.com wrote: Rich, The short answer is: You need to find a bigger duplexer. Four 8 cans would work well such as a Wacom WP-641. You could simply call and order one if Wacom was still in business. (RIP) Unfortunately Tx/Rx bought them years ago for the name and to quash competition. They can be found occasionally for around $600 or so on the used market. Other alternatives are as follows: 1) You can use two antennas and split the 639 duplexer so that 2 cans are in series between the TX and the TX antenna, and the other two are in series between the RX and the RX antenna. Terry WX3M a list member is doing this with VERY good results on one of his VHF machines. Of course this involves the expense of additional feedline and a second antenna. I think you said you had this machine on an 80' mast. 50' or so of vertical isolation coupled with the additional isolation of splitting the duplexer *may* be enough isolation to get rid of all the desense. TX goes on bottom, RX on top. 2) Buy additional Band Pass / Band Reject (BPBR) cans. You can add these additional cans between the Tx and/or Rx and the duplexer. These cans will give additional isolation. Even if you can find just Pass or Notch cavities, tune them and put them in the correct place. With both of the above options, you are looking to add to the isolation between your transmitter and receiver. You'll find you'll do best by adding cans to your transmitter that notch side-band noise at your receiver's frequency. In other words, do what you can to insure your receiver is not hearing your own transmitter's sideband noise on it's input. Pass cans tuned to the TX frequency or NOTCH cavities tuned to your *RX* frequency placed in the transmit line are your best hope. Good luck, Scott Scott Zimmerman Amateur Radio Call N3XCC 474 Barnett Road Boswell, PA 15531
RE: [Repeater-Builder] Antenna ID
This is an antenna made by Maxrad, it might be a MBX 150 which will be VHF, they also make a UHF version. They are all frequency adjustable. Leroy. J39AI. -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of La Rue Communications Sent: Friday, September 03, 2010 4:01 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Antenna ID I figured this group would be in the know on how to ID an antenna without a sticker or any identification numbers engraved on it. I have an antenna that I found. It has no stickers of any kind, except for the This will kill you if you touch a wire sticker on it. Pictures attached are all I have. Its an N type connector and is roughly 4 feet in length. Is there any way to ID this with your traditional shop equipment? Thanks in advance! By the way, Kevin Custer, please email me! Thanks! John Hymes La Rue Communications 10 S. Aurora Street Stockton, CA 95202 http://tinyurl.com/2dtngmn
RE: [Repeater-Builder] Antenna ID
It is definitely a Maxrad I used them quite a bit. Leroy. J39AI -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of La Rue Communications Sent: Friday, September 03, 2010 4:30 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Antenna ID THats two for MaxRad so far! So it will either be a MaxRad or a Ringo. Its incredibly light, and it looks very much like a light saber, which is what I am almost inclined to use it for, if it wasnt worth a few bucks! :) Its nice to know this may be frequency adjustable. I just wanted to be sure, now I am more sure than I started with. Thanks for the responses so far! John Hymes La Rue Communications 10 S. Aurora Street Stockton, CA 95202 http://tinyurl.com/2dtngmn - Original Message - From: Chuck Kelsey mailto:wb2...@roadrunner.com To: Repeater-Builder@yahoogroups.com Sent: Friday, September 03, 2010 1:25 PM Subject: Re: [Repeater-Builder] Antenna ID These style antennas are typically poor performers FYI. I wouldn't use it for anything important. Cushcraft started the design with their Ringo series, then several others copied the design. They were inexpensive, which was the only good feature. Chuck WB2EDV - Original Message - From: La Rue Communications mailto:laruec...@gmail.com To: Repeater-Builder@yahoogroups.com Sent: Friday, September 03, 2010 4:01 PM Subject: [Repeater-Builder] Antenna ID I figured this group would be in the know on how to ID an antenna without a sticker or any identification numbers engraved on it. I have an antenna that I found. It has no stickers of any kind, except for the This will kill you if you touch a wire sticker on it. Pictures attached are all I have. Its an N type connector and is roughly 4 feet in length. Is there any way to ID this with your traditional shop equipment? Thanks in advance! By the way, Kevin Custer, please email me! Thanks! John Hymes La Rue Communications 10 S. Aurora Street Stockton, CA 95202 http://tinyurl.com/2dtngmn No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.851 / Virus Database: 271.1.1/3111 - Release Date: 09/03/10 02:34:00
RE: [Repeater-Builder] Antenna ID
I might have what you are looking for, I will look for it tomorrow. Leroy. J39AI -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Dave Schultheis Sent: Friday, September 03, 2010 7:14 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Antenna ID John wrote: (others have commented on the antenna type, seems to be VHF) Its an N type connector I believe that's an SO-239 connector, ready to accept your common PL-259 connector at the end of a piece of coax. I haven't had any luck finding a document that describes the antenna or its associated cutting chart, sorry. Someone else may have better luck. 73 Dave WB6KHP San Jose -- dave6592 [at] accesscom [dot] com - http://www.accesscom.com/~dave6592 Dave Schultheis, San José, Silicon Valley, Santa Clara County, CA, USA
RE: [Repeater-Builder] Astron 70Amp Supply
Do not worry too much about the fan, it will come on if the temperature on the heat sink rises, you will have to draw quite a bit of current continuously to get it to come on. Leroy J39AI -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Michael Ryan Sent: Monday, August 02, 2010 3:56 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Astron 70Amp Supply I am using an ASTRON 70 amp ( un-metered ) supply in my rack. It has a fan on it that I have NEVER seen come on. Is there an internal adjustment of some nature based on the ambient temperature that can be maneuvered to make this fan more 'useful? Thanks.. - Mike __ Information from ESET NOD32 Antivirus, version of virus signature database 5335 (20100802) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com http://www.eset.com
RE: [Repeater-Builder] Astron 70Amp Supply
For years all my power supplies have been Astrons, they are really some work horses. Believe me, if it gets too hot, that fan will come on, providing that there is not a fault in the thermal circuit. They are great power supplies. -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Michael Ryan Sent: Monday, August 02, 2010 4:07 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Astron 70Amp Supply Thanks Leroy..the cabinet is warmer that I like to see even when the repeater is just in 'idle mode' for long periods. - M From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Leroy A. M. Baptiste Sent: Monday, August 02, 2010 4:03 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Astron 70Amp Supply Do not worry too much about the fan, it will come on if the temperature on the heat sink rises, you will have to draw quite a bit of current continuously to get it to come on. Leroy J39AI -Original Message- From: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com ] On Behalf Of Michael Ryan Sent: Monday, August 02, 2010 3:56 PM To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Subject: [Repeater-Builder] Astron 70Amp Supply I am using an ASTRON 70 amp ( un-metered ) supply in my rack. It has a fan on it that I have NEVER seen come on. Is there an internal adjustment of some nature based on the ambient temperature that can be maneuvered to make this fan more 'useful? Thanks.. - Mike __ Information from ESET NOD32 Antivirus, version of virus signature database 5335 (20100802) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com http://www.eset.com http://www.eset.com http://www.eset.com __ Information from ESET NOD32 Antivirus, version of virus signature database 5335 (20100802) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com http://www.eset.com __ Information from ESET NOD32 Antivirus, version of virus signature database 5335 (20100802) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com __ Information from ESET NOD32 Antivirus, version of virus signature database 5335 (20100802) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com http://www.eset.com
RE: [Repeater-Builder] Astron RS50 Power Supply
My guess is that it was a heat problem due to a faulty solder joint on the pass transistors socket. -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of James Sent: Sunday, June 20, 2010 2:22 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Astron RS50 Power Supply Hi Guys, I am trying to download a schematic on this site for the RS50M Power Supply and keep getting a 404 Error on each attempt on all the supplies. Any ideas? Also our above mentioned power supply which operates our 2 Meter and 440 Repeaters and a low power link started humming yesterday. A trip to the tower showed that the two large wires coming from the Pass Transistors to the post on top of the regulator board and into the 1000 Uf Electrolytic got so hot it melted the insulation an inch back on the wires, burned an area the size of a quarter on the fiter side of the regulator board, turned the terminal black on the Cap. and cracked the plastic on the cap. It never blew the fuse and a check of the voltage showed it regulating under load and hardly a trace of AC on the 13 volt output. The MOV or eight amp AC fuse never blew. All the equipment hooked to the supply took off and worked well on another supply. Anyone have a guess as to what caused this obvious surge ontop of the cap? I am going to replace the Cap. and one resistor on the regular board which is discolored and hope for the best. Any advise appreciated. Thanks in advance JIM KA2AJH Wellsville, N.Y.
RE: [Repeater-Builder] Astron RS50 Power Supply
I must have missed it, but what is the deal of not connecting the negative side of an Astron Supply to case? -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Mike Morris Sent: Sunday, June 20, 2010 6:24 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Astron RS50 Power Supply At 11:22 AM 06/20/10, you wrote: Hi Guys, I am trying to download a schematic on this site for the RS50M Power Supply and keep getting a 404 Error on each attempt on all the supplies. Any ideas? Did you use the email link on the 404 page to tell the guys at repeater-builder? I just checked the RS50 links and they all seem to work... Let me know which link doesn't work and I'll fix it. You might want to read the repair and modification notes on the Introductory Information page. At the least you should add the missing compensation cap and the missing lock washers. Make sure the negative side of the supply is NOT connected to the case. Eric WB6FLY posted a informative note about that a while back. It's reproduced on the Introductory Information page. According to the schematic the main diodes in the RS-50 is the 1N1184A. International Rectifier calls it a 40 amp diode. What brand is in your unit? I rebuilt an RS50 a couple of years ago and used a pair of the 1N2129A (60 amp diode). If I were to do it over again I'd use a 100a diode like the 1N3288 that I use in the RS-70. Mike WA6ILQ
[Repeater-Builder] GE Master
Any of you guys had any experiences in using a GE Master Executive 11 as a repeater, and would you recommend it. Leroy J39AI
RE: [Repeater-Builder] Micor PL encoder modification (TLN5731A)
I have a question for the group. What is reverse burst? And when is it used? Motorola radios. Leroy. J39AI. -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of N1BUG Sent: Monday, May 03, 2010 1:54 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Micor PL encoder modification (TLN5731A) wd8chl wrote: The usual method we've used is to pull it to ground when you don't want tone with a transistor or a FET. You can remember though that, depending on your link rx, letting the Micor encode reverse burst will close the squelch quicker than just letting it coast. My experience is that the reverse burst on the stock Micor encode board works on the vast majority of radios, both Motorola and not. It worked on every Kenwood I had except for the old TK-801. Ham or commercial. The only other radio I have had in recnt years that it did not work on is the Yaesu VX-1R. Not even chicken burst works with that radio. I can't say for sure, but I think that if you key it with the PTT input, after the reverse burst delay, the tone will shut off...I could be wrong though...I'm sure there's a simple way to do it though. A one-transistor switch in the right place shoule do it. Thanks. It looks to me like the stock encoder supplies PL tone to the transmitter continuously, whether PTT is active or not. The only exception I can see is that for ~150 milliseconds after PTT input to the encoder goes inactive, it switches to reverse burst - then back to regular PL tone. It seems like a mod to keep reverse burst but kill the regular PL tone while still allowing the controller to keep the transmitter up (without tone) for IDs would be more complex. Unless I'm overlooking something, which I've been known to do! Squelch tails are *probably* not going to be much of an issue since I plan to use AND squelch with PL and the infamous Micor carrier squelch at the receive end of the link. That Micor squelch chip really clamps off the audio quickly if it's a full quieting signal. If there is enough of a squelch click to annoy me I can just add an audio delay in the appropriate spot. Paul
RE: [Repeater-Builder] Micor PL encoder modification (TLN5731A)
Hi Paul, thanks, I think that answers my question adequately. In other words if I am using an open repeater without PL tones, I do not need reverse burst? -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of N1BUG Sent: Monday, May 03, 2010 2:30 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Micor PL encoder modification (TLN5731A) Leroy A. M. Baptiste wrote: I have a question for the group. What is reverse burst? And when is it used? Motorola radios. Leroy, I'm sure others can explain it better, but... Reverse burst was / is used by Motorola and others to eliminate squelch crashes at the receiving end of a comm circuit. It works like this: after a transmission, the transmitter stays keyed momentarily, during which time an out-of-phase version of the PL tone is transmitted. This out-of-phase tone causes the tone decoder at the receive end to shut off audio before the transmitter carrier disappears. Someone will correct my errors here :) This might help: http://www.repeater-builder.com/rbtip/reverseburst .html http://www.repeater-builder.com/rbtip/reverseburs t.html Paul
RE: [Repeater-Builder] Micor PL encoder modification (TLN5731A)
Thanks again Paul, I really do appreciate it. -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of N1BUG Sent: Monday, May 03, 2010 2:50 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Micor PL encoder modification (TLN5731A) That's right Leroy, reverse burst was invented to overcome the problem of tone decoders being relatively slow to realize the tone went away and thus producing a somewhat long burst of noise before muting the speaker. Paul Leroy A. M. Baptiste wrote: Hi Paul, thanks, I think that answers my question adequately. In other words if I am using an open repeater without PL tones, I do not need reverse burst? Yahoo! Groups Links http://groups.yahoo.com/group/Repeater-Builder/ http://groups.yahoo.com/group/Repeater-Builder/joi n (Yahoo! ID required)
RE: [Repeater-Builder] Re: Maxtrac Channel Control
Hi there Steve, I have made quite a bit of progress with remote controlling the PRO5100 for three channels. Do you or anyone in this group had any experience in remotintg the Motorola PRO3100. Grounding the channel change outputs in the auxillary plug just make the channel light flashing. Steve give me your E Mail address please. -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Leroy A. M. Baptiste Sent: Tuesday, April 06, 2010 6:37 AM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Re: Maxtrac Channel Control Hey Steve, thanks for all your valuable information. I am still working on my project, I am using a CAT controller to give me the earth for Channel select on the Motorola Radio from a remote DTMF command, I will let you know how it works out. Do you have a private E Mail address or phone number? Leroy J39AI. -Original Message- From: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com ] On Behalf Of kd8biw Sent: Monday, April 05, 2010 1:47 AM To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Subject: [Repeater-Builder] Re: Maxtrac Channel Control Leroy, Here is the file I received, and what I plan on doing... Our controller give us a hex output via 4 output pins. These 4 pins will be connected to pins 6,8,9, and 12 on the Gm300. This will give us selection of 9 of the 16 channels, enough for our needs! This will allow us to link to the primary 2M repeater in OUR county, plus 1 in each of the 7 surrounding counties, plus 1 simplex channel. Remember, you will need at least 2 pins grounded to make a channel, so some of the hex outputs will not work. When the correct DTMF access code is entered, followed by a number or letter, it translates it into hex and outputs it via the 5 pins, and latches that way. Even if power is lost, it will revert to the last know state. We will be using this to steer the GM300 via the drawing in the .pdf file I uploaded in the files section, look for the ch-sel file. I will program the GM300 and make a list of how to use it and distribute to the users. For example, entering the correct DTMF acces code, followed by a 3 would give you an output of 0011 in hex. This equates to channel 12 on the GM300. Here is how it all works out. It's not perfect, but I have an older controller that does not support direct control of radios, and it gives me control of 9 channels, more than enough for my needs! DTMF Digit Hex Output GM300 Channel 0 1 (all outputs off, reverts to front panel control, which would be set to Ch1, the home channel) 3 0011 12 5 0101 10 6 0110 6 7 0111 14 9 1001 9 A 1010 5 B 1011 13 C 1100 3 Hope this is what you were looking for. Any questions, shoot them my way! Steve KD8BIW --- In Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com , Leroy A. M. Baptiste leroybapti...@... wrote: Hey Steve, what did you find out? I am also interested in a system like that. Leroy. J39AI -Original Message- From: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com ] On Behalf Of kd8biw Sent: Saturday, March 27, 2010 3:01 PM To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Subject: [Repeater-Builder] Re: Maxtrac Channel Control Thanks for the informaiton everyone! I think I got what I needed to make this work. The site is pretty empty as far a repeaters go, 2 UHF, 1 VHF, and a 220. Will make sure I don't interfer with anything, but I only need 2 or 3 channels on the radio. Thanks everyone for the replies and information! Steve KD8BIW KD8BIW/R 224.580 N8IHI/R 147.105 W3YXS/R 146.745 KD8JBF/R 444.325 --- In Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com , kd8biw kd8biw@ wrote: Hello everyone, Wondering if anyone has been able to implement a Motorola Maxtrac as a frequency agile remote base on a repeater. What I would like to do is have a 16 channel VHF mobile hooked to our repeater, and be able to select a channel at will. I'm sure it can be done, i'm just overlooking something here. Our controller has a 4 pin hex output that I think could do the necessary stuff to make it work, just not sure about how it needs hooked to the radio. Has anyone done something similiar to this? I was looking at NO6B's RBI, and that would fit the bill, just wondering if I could make it work with our controller (MCC RC-100) or would I have to get
RE: [Repeater-Builder] GR300 low audio
Hi Daniel, what volumes do you have to keep at Max? the repeater receiver volume? What about the received signal from the repeater? What is the level there? You have some controls on the RICK for Rx and Tx gain, I think. Leroy J39AI From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Pirici Sent: Wednesday, April 14, 2010 6:02 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] GR300 low audio Hi to you all! Please, if anyone has experienced low audio transfer with a GR300 repeater, any solutions please? I have programmed the GR300 repeater and it works fine with one exception: the signal transmitted is very faint, in fact I have to keep the radios linked through the repeater with the volume at max and even then it is not very well. I have a RICK interface in the repeater and 2xGM300 16 channels radios. I have programmed the radios' accessory ports as RICK Tx and RICK RX (so I did not played with the pins settings myself). Please, should I look for a specific pin setting in order to increase a bit the level of the RX sound passed to the Tx radio? (is there any specific port customization setting to solve this?). Many thanks folks! Daniel; Craiova, Romania
RE: [Repeater-Builder] Re: Maxtrac Channel Control
Hey Steve, thanks for all your valuable information. I am still working on my project, I am using a CAT controller to give me the earth for Channel select on the Motorola Radio from a remote DTMF command, I will let you know how it works out. Do you have a private E Mail address or phone number? Leroy J39AI. -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of kd8biw Sent: Monday, April 05, 2010 1:47 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Maxtrac Channel Control Leroy, Here is the file I received, and what I plan on doing... Our controller give us a hex output via 4 output pins. These 4 pins will be connected to pins 6,8,9, and 12 on the Gm300. This will give us selection of 9 of the 16 channels, enough for our needs! This will allow us to link to the primary 2M repeater in OUR county, plus 1 in each of the 7 surrounding counties, plus 1 simplex channel. Remember, you will need at least 2 pins grounded to make a channel, so some of the hex outputs will not work. When the correct DTMF access code is entered, followed by a number or letter, it translates it into hex and outputs it via the 5 pins, and latches that way. Even if power is lost, it will revert to the last know state. We will be using this to steer the GM300 via the drawing in the .pdf file I uploaded in the files section, look for the ch-sel file. I will program the GM300 and make a list of how to use it and distribute to the users. For example, entering the correct DTMF acces code, followed by a 3 would give you an output of 0011 in hex. This equates to channel 12 on the GM300. Here is how it all works out. It's not perfect, but I have an older controller that does not support direct control of radios, and it gives me control of 9 channels, more than enough for my needs! DTMF Digit Hex Output GM300 Channel 0 1 (all outputs off, reverts to front panel control, which would be set to Ch1, the home channel) 3 0011 12 5 0101 10 6 0110 6 7 0111 14 9 1001 9 A 1010 5 B 1011 13 C 1100 3 Hope this is what you were looking for. Any questions, shoot them my way! Steve KD8BIW --- In Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com , Leroy A. M. Baptiste leroybapti...@... wrote: Hey Steve, what did you find out? I am also interested in a system like that. Leroy. J39AI -Original Message- From: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com ] On Behalf Of kd8biw Sent: Saturday, March 27, 2010 3:01 PM To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Subject: [Repeater-Builder] Re: Maxtrac Channel Control Thanks for the informaiton everyone! I think I got what I needed to make this work. The site is pretty empty as far a repeaters go, 2 UHF, 1 VHF, and a 220. Will make sure I don't interfer with anything, but I only need 2 or 3 channels on the radio. Thanks everyone for the replies and information! Steve KD8BIW KD8BIW/R 224.580 N8IHI/R 147.105 W3YXS/R 146.745 KD8JBF/R 444.325 --- In Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com , kd8biw kd8biw@ wrote: Hello everyone, Wondering if anyone has been able to implement a Motorola Maxtrac as a frequency agile remote base on a repeater. What I would like to do is have a 16 channel VHF mobile hooked to our repeater, and be able to select a channel at will. I'm sure it can be done, i'm just overlooking something here. Our controller has a 4 pin hex output that I think could do the necessary stuff to make it work, just not sure about how it needs hooked to the radio. Has anyone done something similiar to this? I was looking at NO6B's RBI, and that would fit the bill, just wondering if I could make it work with our controller (MCC RC-100) or would I have to get a different controller (CAT or LinkCom)? Thanks all! Steve KD8BIW KD8BIW/R 224.580 N8IHI/R 147.105 W3YXS/R 146.745 KD8JBF/R 444.325
[Repeater-Builder] PRO3100
I am in the market for a couple of Motorola PRO3100 UHF 45 Watt radios, a UHF mobile duplexer, and a DTMF microphone, any ideas. Leroy. J39AI
RE: [Repeater-Builder] Re: Maxtrac Channel Control
Hey Steve, what did you find out? I am also interested in a system like that. Leroy. J39AI -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of kd8biw Sent: Saturday, March 27, 2010 3:01 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Maxtrac Channel Control Thanks for the informaiton everyone! I think I got what I needed to make this work. The site is pretty empty as far a repeaters go, 2 UHF, 1 VHF, and a 220. Will make sure I don't interfer with anything, but I only need 2 or 3 channels on the radio. Thanks everyone for the replies and information! Steve KD8BIW KD8BIW/R 224.580 N8IHI/R 147.105 W3YXS/R 146.745 KD8JBF/R 444.325 --- In Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com , kd8biw kd8...@... wrote: Hello everyone, Wondering if anyone has been able to implement a Motorola Maxtrac as a frequency agile remote base on a repeater. What I would like to do is have a 16 channel VHF mobile hooked to our repeater, and be able to select a channel at will. I'm sure it can be done, i'm just overlooking something here. Our controller has a 4 pin hex output that I think could do the necessary stuff to make it work, just not sure about how it needs hooked to the radio. Has anyone done something similiar to this? I was looking at NO6B's RBI, and that would fit the bill, just wondering if I could make it work with our controller (MCC RC-100) or would I have to get a different controller (CAT or LinkCom)? Thanks all! Steve KD8BIW KD8BIW/R 224.580 N8IHI/R 147.105 W3YXS/R 146.745 KD8JBF/R 444.325
RE: [Repeater-Builder] Anyone try the new ID-O-Matic 2?
Yes Mike I have used and I am still using, GM300 and PRO5100 as repeaters for years and they worked flawlessly, although I must add they are probably working in a 25 to 35% duty cycle. I have used a Rick, ZR310, and Cat 250 as controllers with good results. Leroy Baptiste. J39AI -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of k7pfj Sent: Thursday, March 25, 2010 5:39 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Anyone try the new ID-O-Matic 2? No but we have used one for the portable ham repeater using two CDM1250 radios and a RICK unit that has no CWID. I used the link port of the controller to use the IDER and works flawless. Mike Mullarkey K7PFJ 6886 Sage Ave Firestone, CO 80504 303-736-9693 k7...@skybeam.com mailto:k7...@skybeam.com On Mar 25, 2010, at 2:45 PM, AJ wrote: http://www.hamgadgets.com/store/product_info.php?p roducts_id=108 http://www.hamgadgets.com/store/product_info.php? products_id=108 Looks like it might be a very -very- _very_ simple option for a temp repeater setup..
RE: [Repeater-Builder] Re: Interference
Dan, have you had any experience using the GE Mastr 11 as a repeater, and if so what are your thoughts on it. -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Dan Saputo Sent: Friday, March 05, 2010 12:25 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Re: Interference Hi Leroy, Sounds like its coming straight into the antenna connector on rx since you mentioned it keeps the repeater keyed. If I'm not mistaken you also mentioned it cycles w/repeater tx? I'm guessing this is a commercial site with other systems in addition to your machine and the FM broadcast transmitters? The WP-641 duplexer you're using is a great duplexer, but doesn't offer much protection beyond the specific pass-reject frequencies its tuned for. Have you ever tried a different receiver on your system? It'd be interesting to connect another (high quality) receiver in place of what you have now as a test. Or try adding a bandpass cavity between rx and duplexer. Another pass cavity and/or isolator on the tx side might be a big help too. Dan k8plw --- On Thu, 3/4/10, Leroy A. M. Baptiste leroybapti...@spiceisle.com wrote: From: Leroy A. M. Baptiste leroybapti...@spiceisle.com Subject: RE: [Repeater-Builder] Re: Interference To: Repeater-Builder@yahoogroups.com Date: Thursday, March 4, 2010, 8:44 PM Hi Laryn, no I did not get a chance to answer your questions, but here goes. The interference is holding the squelch open on the repeater receiver sometimes, which by extension holds the transmitter on, or cycles it, based on the interference into the receiver. The interference audio is not clean, it is distorted, the interference is not always there when you key up. Like I mentioned before, turning the FM transmitter off cures the problem. Hope that helps, and many thanks for your help. -Original Message- From: Repeater-Builder@ yahoogroups. com http://us.mc560.mail.yahoo.com/mc/compose?to=Repeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@ yahoogroups. com http://us.mc560.mail.yahoo.com/mc/compose?to=Repeater-Builder%40yahoogroups.com ] On Behalf Of larynl2 Sent: Friday, March 05, 2010 9:19 AM To: Repeater-Builder@ yahoogroups. com http://us.mc560.mail.yahoo.com/mc/compose?to=Repeater-Builder%40yahoogroups.com Subject: [Repeater-Builder] Re: Interference Leroy, perhaps you answered my questions from earlier today and I missed your answers. If you answered I apologize. So here they are again. --- In Repeater-Builder@ yahoogroups. com http://us.mc560.mail.yahoo.com/mc/compose?to=Repeater-Builder%40yahoogroups.com mailto:Repeater- Builder%40yahoog roups.com , Leroy A. M. Baptiste leroybaptiste@ wrote: When you key up the repeater, and you release, the repeater is held open (Sometimes) What do you mean by held open? Is the interference opening/keeping open the squelch of the repeater receiver, or are you hearing it with the squelch closed during the TX tail? , and you can hear the interference coming in. Is the interference audio relatively clean/undistorted, or loud, raspy, distorted? Is the interference always there, or quite intermittent? Laryn K8TVZ
[Repeater-Builder] Interference
Hello all, I am having some interference problems, it is coming from an FM transmitter on 94.500MHz, and getting into the Amateur Radio repeater's receiver on 146.1600MHz. It is not there all the time, but when the repeater is keyed up, you can hear it getting in. The 2 Meter repeater is fed with heliax cable from the duplexer to the antenna, the transmission line on the FM station is ordinary coaxial cable, the power output is about 300 Watts, any ideas? Leroy. J39AI
RE: [Repeater-Builder] Interference
The only other station in the building is on 107.500MHz -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of wd8chl Sent: Thursday, March 04, 2010 10:21 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Interference On 3/4/2010 8:56 AM, Leroy A. M. Baptiste wrote: Hello all, I am having some interference problems, it is coming from an FM transmitter on 94.500MHz, and getting into the Amateur Radio repeater's receiver on 146.1600MHz. It is not there all the time, but when the repeater is keyed up, you can hear it getting in. The 2 Meter repeater is fed with heliax cable from the duplexer to the antenna, the transmission line on the FM station is ordinary coaxial cable, the power output is about 300 Watts, any ideas? Leroy. J39AI Is there another FM station on either 95.1 or 93.9? Guess what-600 KHz! Natural intermod source!
RE: [Repeater-Builder] Interference
When you key up the repeater, and you release, the repeater is held open (Sometimes), and you can hear the interference coming in. If I disconnect the FM Station, the repeater is as clean as a whistle. -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Chris Quirk Sent: Thursday, March 04, 2010 11:34 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Interference Interesting problem, can you describe the interference?? --- On Thu, 3/4/10, wd8chl wd8...@gmail.com wrote: From: wd8chl wd8...@gmail.com Subject: Re: [Repeater-Builder] Interference To: Repeater-Builder@yahoogroups.com Date: Thursday, March 4, 2010, 6:57 AM On 3/4/2010 9:40 AM, Leroy A. M. Baptiste wrote: The only other station in the building is on 107.500MHz It could also be from an AM station on 600 KHZ +/-10 KHz. -Original Message- From: Repeater-Builder@yahoogroups.com http://us.mc456.mail.yahoo.com/mc/compose?to=Repe ater-buil...@yahoogroups.com [mailto:Repeater-Builder@yahoogroups.com http://us.mc456.mail.yahoo.com/mc/compose?to=Repe ater-buil...@yahoogroups.com ] On Behalf Of wd8chl Sent: Thursday, March 04, 2010 10:21 PM To: Repeater-Builder@yahoogroups.com http://us.mc456.mail.yahoo.com/mc/compose?to=Repe ater-buil...@yahoogroups.com Subject: Re: [Repeater-Builder] Interference On 3/4/2010 8:56 AM, Leroy A. M. Baptiste wrote: Hello all, I am having some interference problems, it is coming from an FM transmitter on 94.500MHz, and getting into the Amateur Radio repeater's receiver on 146.1600MHz. It is not there all the time, but when the repeater is keyed up, you can hear it getting in. The 2 Meter repeater is fed with heliax cable from the duplexer to the antenna, the transmission line on the FM station is ordinary coaxial cable, the power output is about 300 Watts, any ideas? Leroy. J39AI Is there another FM station on either 95.1 or 93.9? Guess what-600 KHz! Natural intermod source! Yahoo! Groups Links http://groups.yahoo.com/group/Repeater-Builder/ http://groups.yahoo.com/group/Repeater-Builder/ http://groups.yahoo.com/group/Repeater-Builder/joi n http://groups.yahoo.com/group/Repeater-Builder/jo in (Yahoo! ID required) repeater-builder-dig...@yahoogroups.com http://us.mc456.mail.yahoo.com/mc/compose?to=Repe ater-builder-dig...@yahoogroups.com repeater-builder-fullfeatu...@yahoogroups.com http://us.mc456.mail.yahoo.com/mc/compose?to=Repe ater-builder-fullfeatu...@yahoogroups.com repeater-builder-unsubscr...@yahoogroups.com http://us.mc456.mail.yahoo.com/mc/compose?to=Repe ater-builder-unsubscr...@yahoogroups.com http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Interference
Yes, they are. -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Larry Horlick Sent: Friday, March 05, 2010 1:36 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Interference The 2m repeater and FM transmitter are at the same site? lh On Thu, Mar 4, 2010 at 8:56 AM, Leroy A. M. Baptiste leroybapti...@spiceisle.com mailto:leroybapti...@spiceisle.com wrote: Hello all, I am having some interference problems, it is coming from an FM transmitter on 94.500MHz, and getting into the Amateur Radio repeater's receiver on 146.1600MHz. It is not there all the time, but when the repeater is keyed up, you can hear it getting in. The 2 Meter repeater is fed with heliax cable from the duplexer to the antenna, the transmission line on the FM station is ordinary coaxial cable, the power output is about 300 Watts, any ideas? Leroy. J39AI
RE: [Repeater-Builder] Re: Interference
The repeater consists of (2)Motorola Pro 5100 Radios, one in transmit, and one in receive, the controller is a CAT 250, the duplexer is a Wacom 641, the Antenna is a DB 224E, and it is powered by an Astron 50 Amp supply. Hope this helps. -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of DCFluX Sent: Friday, March 05, 2010 2:08 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Re: Interference Please provide make and model of repeater, controller, duplexer and input frequency.
RE: [Repeater-Builder] Re: Interference
146.760 Mhz. -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of DCFluX Sent: Friday, March 05, 2010 5:54 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Re: Interference PRO5100 = 44.85 MHz 1st IF with High Side Injection, 455kHz 2nd IF, 16.8 MHz TCXO What is the frequency of the repeaters transmitter? On Thu, Mar 4, 2010 at 12:48 PM, Leroy A. M. Baptiste leroybapti...@spiceisle.com mailto:leroybaptiste%40spiceisle.com wrote: The repeater consists of (2)Motorola Pro 5100 Radios, one in transmit, and one in receive, the controller is a CAT 250, the duplexer is a Wacom 641, the Antenna is a DB 224E, and it is powered by an Astron 50 Amp supply. Hope this helps. -Original Message- From: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com ] On Behalf Of DCFluX Sent: Friday, March 05, 2010 2:08 AM To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Subject: Re: [Repeater-Builder] Re: Interference Please provide make and model of repeater, controller, duplexer and input frequency. Yahoo! Groups Links
RE: [Repeater-Builder] Interference
Hi Steve, thanks for taking time out to help me solve this problem. I will try taking the aerial of the repeater RX to see what happens. The distance between antennas is about 20 feet. The FM antenna is circularly polarised, and the @ Meter is a DB224E with all diploes in line. Taking the FM transmitter off the air solved the problem. Re the duplexers they were tuned with a spectrum analyzer, the repeater receives signals as far away as 100 odd miles. I think it has been conclusively proved that the interference is coming from the FM transmitter. But I will make some more checks and see what happens, I will post my results. Thanks again guys. -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Steve Sent: Friday, March 05, 2010 8:14 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Interference Pardon me for butting in again. Start with the simple things like taking the aerial off the rptr rx and see if that cures it. How far apart are the FM and rptr aerials, as it sounds like pure rf getting into the rx. Is the duplexer tuned right to give around 80db isolation as it maybe the rptrs own tx causing probs allthough he did say taking the FM,s aerial off cured it. Still recon my idea of a coax notch filter in the rx input will cure it. Steve - Original Message - From: Larry Horlick mailto:llhorl...@gmail.com To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder@yahoogroups.com Sent: Thursday, March 04, 2010 11:33 PM Subject: Re: [Repeater-Builder] Interference Is it IMD, though? Could it be in the audio chain? Leroy, did you troubleshoot from this angle? On Thu, Mar 4, 2010 at 12:53 PM, Leroy A. M. Baptiste leroybapti...@spiceisle.com mailto:leroybapti...@spiceisle.com wrote: Yes, they are. -Original Message- From: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder@yahoogroups.com [mailto:Repeater-Builder@yahoogroups.com mailto:Repeater-Builder@yahoogroups.com ] On Behalf Of Larry Horlick Sent: Friday, March 05, 2010 1:36 AM To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Subject: Re: [Repeater-Builder] Interference The 2m repeater and FM transmitter are at the same site? lh On Thu, Mar 4, 2010 at 8:56 AM, Leroy A. M. Baptiste leroybapti...@spiceisle.com mailto:leroybaptiste%40spiceisle.com mailto:leroybapti...@spiceisle.com mailto:leroybaptiste%40spiceisle.com wrote: Hello all, I am having some interference problems, it is coming from an FM transmitter on 94.500MHz, and getting into the Amateur Radio repeater's receiver on 146.1600MHz. It is not there all the time, but when the repeater is keyed up, you can hear it getting in. The 2 Meter repeater is fed with heliax cable from the duplexer to the antenna, the transmission line on the FM station is ordinary coaxial cable, the power output is about 300 Watts, any ideas? Leroy. J39AI
RE: [Repeater-Builder] Re: Interference
Hi Laryn, no I did not get a chance to answer your questions, but here goes. The interference is holding the squelch open on the repeater receiver sometimes, which by extension holds the transmitter on, or cycles it, based on the interference into the receiver. The interference audio is not clean, it is distorted, the interference is not always there when you key up. Like I mentioned before, turning the FM transmitter off cures the problem. Hope that helps, and many thanks for your help. -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of larynl2 Sent: Friday, March 05, 2010 9:19 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Interference Leroy, perhaps you answered my questions from earlier today and I missed your answers. If you answered I apologize. So here they are again. --- In Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com , Leroy A. M. Baptiste leroybaptiste@ wrote: When you key up the repeater, and you release, the repeater is held open (Sometimes) What do you mean by held open? Is the interference opening/keeping open the squelch of the repeater receiver, or are you hearing it with the squelch closed during the TX tail? , and you can hear the interference coming in. Is the interference audio relatively clean/undistorted, or loud, raspy, distorted? Is the interference always there, or quite intermittent? Laryn K8TVZ
RE: [Repeater-Builder] Pair of GM300 as a repeater
In response to your Gm300s as repeaters, I have been using them for years without any problems, power up full(with fan coming on at transmit) and a 600 KHz spacing. I also have a pair of SM 50s working as a repeater with a much wider spacing. It has been operating for years now, without any problems. I will be happy to share more info. -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Steve Sent: Friday, February 26, 2010 3:01 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Pair of GM300 as a repeater Hi they work OK but you must turn the tx pwr right down and fit a fan or pa won't last long. It is down to the duplexer finding a unit suitable at the right price will be almost impossible, the 5Mhz split is ok as you can get cheap duplexers from Hong Kong 73 Steve - Original Message - From: la88y llhorl...@gmail.com mailto:llhorlick%40gmail.com To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Sent: Thursday, February 25, 2010 4:46 PM Subject: [Repeater-Builder] Pair of GM300 as a repeater I'm wondering about the suitability of a pair of VHF GM300s as a repeater. Is the shielding sufficient to allow 600 kHz between Rx and Tx? If not, what is the suggested minimum? Same questions for UHF SM50, but with a 5 mHz split? lh Yahoo! Groups Links
RE: [Repeater-Builder] Hamtronics R302 RSSI meter circuit.
What kind of circuit? From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of gm7svk Sent: Sunday, February 21, 2010 12:27 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Hamtronics R302 RSSI meter circuit. Does anyone have a suitable circuit which can be used with the R302? Regards, Doug
RE: [Repeater-Builder] newbie looking for info
One of the simplest and easy repeater to build (to my mind) is to hook up two Motorola PRO series radios with a Cat controller, your duplexers, Antenna, cables etc and you are good to go. A good reliable 12 Volt D.C. Power source of course. I have one running for years now. You will also need some form of forced air cooling for the transmitter. -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Kirk Mefford Sent: Tuesday, January 26, 2010 2:06 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] newbie looking for info Since everyone is giving you the advise and links to more advanced subjects of repeater building I'll list the overly simplified basics. List of equipment needed: Receiver Transmitter (this might be 2 parts-and exciter and a power amplifier) Controller (to tell the transmitter when to transmit) Duplexer (if you want to use one antenna and/or save space) Antenna (or two if you don't use a duplexer-one for TX, one for RX) Antenna feedline Various cables to connect everything together Power to run the equipment Rules you have to abide by: Laws of physics Laws of your governing body The links and suggestions provided help explain all of the above and somewhere on the repeater builder pages there is a page which describes the experiences of a person's first time building a repeater. The how's and why's of building a repeater especially a good repeater isn't as easy to write in a single email/web page/etc. There are a LOT of ways to build a repeater and every variable will have a different effect on the finished product. The biggest point to remember if you are thinking of building a repeater is it will take time, money and knowledge. The more you have of any of those things, the less you'll need of the others. - Original Message - From: tetrault mdtetra...@gmail.com mailto:mdtetrault%40gmail.com To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Sent: Monday, January 25, 2010 1:19 PM Subject: [Repeater-Builder] newbie looking for info Where would I find a book or list of items I would need to build a repeater. Is there a list of parts and rules etc? I didn't see anything appropriate in the files section. Tnx, Mark AA1OV
