RE: [Repeater-Builder] Zetron 38A not sending reverse burst
Just catching up on RB mail after a couple of weeks... For the record, I learned that turn of phrase (chicken burst) from reading things here on RB over the years. I don't know the history of the phrase. Chicken to implement true reverse burst/squelch tail elimination, etc? I have no idea. -- Nate Duehr, WY0X n...@natetech.com On Thu, 19 Nov 2009 06:10 -0800, Jim Brown w5...@yahoo.com wrote: I use several Z-38A controllers in ham applications. I get around the squelch crash problem by setting the Z-38A to stop sending a PL tone as soon as a user unkeys. The short tail is still there from the repeater, but the lack of a tone to a receiver lets the audio shut off while carrier is still present, and does not generate a squelch crash. I believe Nate calls this a 'chicken burst' though I have never heard that term before - A second benefit of shutting off the tone after a user unkeys is that it allows in-band links with no ping-pong effects due to the tails talking to each other. 73 - Jim W5ZIT --- On Wed, 11/18/09, Eric Lemmon wb6...@verizon.net wrote: From: Eric Lemmon wb6...@verizon.net Subject: RE: [Repeater-Builder] Zetron 38A not sending reverse burst To: Repeater-Builder@yahoogroups.com Date: Wednesday, November 18, 2009, 1:09 PM You have discovered one of many dirty little secrets that apply to aftermarket tone panels. When designing the 38A tone panel, and many other products, Zetron overlooked the fact that reverse burst is essential in the repeated audio. From a close examination of the 38A manual and schematics, it appears that it will decode CTCSS reverse burst and CDCSS turnoff code, and MAY generate CDCSS turnoff code, but I see no evidence that it can generate reverse burst. That alone is a major shortcoming! Zetron is not the only manufacturer that ignored reverse burst encoding when designing a community repeater controller. Instrument Associates, which produced the i20R On-site Repeater Controller for the Motorola GR1225 desktop repeater, did likewise. I did not realize this until I found that squelch crashes were immediately heard as soon as I put the i20R in service. Although some fans of the old Highway Patrol shows starring Broderick Crawford may enjoy the sound of a squelch crash, I do not, nor do any of my radio users. That i20R was pulled from service immediately, and put on the shelf! There are two different formats for CTCSS reverse burst STE (Squelch Tail Elimination) that are defined in TIA-603-C, the international standard for land-mobile radio performance and design. One format, used principally by Motorola, uses a 120-degree phase shift, while the other format, used by Kenwood and many others, uses a 180-degree phase shift. Since modern radios often use digital signal processing to encode and decode low-speed data (CTCSS and CDCSS), it is all too easy to design a circuit that responds perfectly to 180-degree phase shift but ignores 120-degree phase shift, and vice-versa. Zetron and others couldn't be bothered to create a CTCSS encoder that could be switched between the two reverse-burst formats, so they just ignored the problem. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@ yahoogroups. com [mailto:Repeater-Builder@ yahoogroups. com] On Behalf Of wspx472 Sent: Wednesday, November 18, 2009 10:15 AM To: Repeater-Builder@ yahoogroups. com Subject: [Repeater-Builder] Zetron 38A not sending reverse burst I am trying to get a repeater going using a 38A and find that it doesn't send reverse burst. I thought I saw that it did in the manual but upon looking again, all I see is where it responds to reverse burst. Does anyone know for sure if it is supposed to send reverse burst? If so, how do I get it to do it? References 1. mailto:w5...@yahoo.com?subject=re:%20[Repeater-Builder]%20Zetron%2038A%20not%20sending%20reverse%20burst 2. mailto:repeater-buil...@yahoogroups.com?subject=re:%20[Repeater-Builder]%20Zetron%2038A%20not%20sending%20reverse%20burst 3. http://groups.yahoo.com/group/Repeater-Builder/message/95820;_ylc=X3oDMTM1ZHZxMDF1BF9TAzk3MzU5NzE0BGdycElkAzEwNDE2OARncnBzcElkAzE3MDUwNjMxMDgEbXNnSWQDOTU4MzMEc2VjA2Z0cgRzbGsDdnRwYwRzdGltZQMxMjU4NjM5OTAzBHRwY0lkAzk1ODIw 4. http://groups.yahoo.com/group/Repeater-Builder/members;_ylc=X3oDMTJlc2RhOTllBF9TAzk3MzU5NzE0BGdycElkAzEwNDE2OARncnBzcElkAzE3MDUwNjMxMDgEc2VjA3Z0bARzbGsDdm1icnMEc3RpbWUDMTI1ODYzOTkwMw--?o=6 5. http://groups.yahoo.com/group/Repeater-Builder;_ylc=X3oDMTJkaGkyMG5hBF9TAzk3MzU5NzE0BGdycElkAzEwNDE2OARncnBzcElkAzE3MDUwNjMxMDgEc2VjA3Z0bARzbGsDdmdocARzdGltZQMxMjU4NjM5OTAz 6. http://groups.yahoo.com/group/Repeater-Builder/post;_ylc=X3oDMTJkN21pdnVmBF9TAzk3MzU5NzE0BGdycElkAzEwNDE2OARncnBzcElkAzE3MDUwNjMxMDgEc2VjA2Z0cgRzbGsDbnRwYwRzdGltZQMxMjU4NjM5OTAz 7. http://us.ard.yahoo.com/SIG=14k9c4lda/M=493064.12016295.13793596.10835568/D=groups/S=1705063108:MKP1/Y=YAHOO/EXP=1258647103/L=/B=F2eDAkPDhEE-/J=1258639903754764/K=KOR8qtxekTH7Rxozg8rs_w/A=5898843/R=0/SIG=11kkq36go
RE: [Repeater-Builder] Zetron 38A not sending reverse burst
I use several Z-38A controllers in ham applications. I get around the squelch crash problem by setting the Z-38A to stop sending a PL tone as soon as a user unkeys. The short tail is still there from the repeater, but the lack of a tone to a receiver lets the audio shut off while carrier is still present, and does not generate a squelch crash. I believe Nate calls this a 'chicken burst' though I have never heard that term before - A second benefit of shutting off the tone after a user unkeys is that it allows in-band links with no ping-pong effects due to the tails talking to each other. 73 - Jim W5ZIT --- On Wed, 11/18/09, Eric Lemmon wb6...@verizon.net wrote: From: Eric Lemmon wb6...@verizon.net Subject: RE: [Repeater-Builder] Zetron 38A not sending reverse burst To: Repeater-Builder@yahoogroups.com Date: Wednesday, November 18, 2009, 1:09 PM You have discovered one of many dirty little secrets that apply to aftermarket tone panels. When designing the 38A tone panel, and many other products, Zetron overlooked the fact that reverse burst is essential in the repeated audio. From a close examination of the 38A manual and schematics, it appears that it will decode CTCSS reverse burst and CDCSS turnoff code, and MAY generate CDCSS turnoff code, but I see no evidence that it can generate reverse burst. That alone is a major shortcoming! Zetron is not the only manufacturer that ignored reverse burst encoding when designing a community repeater controller. Instrument Associates, which produced the i20R On-site Repeater Controller for the Motorola GR1225 desktop repeater, did likewise. I did not realize this until I found that squelch crashes were immediately heard as soon as I put the i20R in service. Although some fans of the old Highway Patrol shows starring Broderick Crawford may enjoy the sound of a squelch crash, I do not, nor do any of my radio users. That i20R was pulled from service immediately, and put on the shelf! There are two different formats for CTCSS reverse burst STE (Squelch Tail Elimination) that are defined in TIA-603-C, the international standard for land-mobile radio performance and design. One format, used principally by Motorola, uses a 120-degree phase shift, while the other format, used by Kenwood and many others, uses a 180-degree phase shift. Since modern radios often use digital signal processing to encode and decode low-speed data (CTCSS and CDCSS), it is all too easy to design a circuit that responds perfectly to 180-degree phase shift but ignores 120-degree phase shift, and vice-versa. Zetron and others couldn't be bothered to create a CTCSS encoder that could be switched between the two reverse-burst formats, so they just ignored the problem. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@ yahoogroups. com [mailto:Repeater-Builder@ yahoogroups. com] On Behalf Of wspx472 Sent: Wednesday, November 18, 2009 10:15 AM To: Repeater-Builder@ yahoogroups. com Subject: [Repeater-Builder] Zetron 38A not sending reverse burst I am trying to get a repeater going using a 38A and find that it doesn't send reverse burst. I thought I saw that it did in the manual but upon looking again, all I see is where it responds to reverse burst. Does anyone know for sure if it is supposed to send reverse burst? If so, how do I get it to do it?
[Repeater-Builder] Zetron 38A not sending reverse burst
I am trying to get a repeater going using a 38A and find that it doesn't send reverse burst. I thought I saw that it did in the manual but upon looking again, all I see is where it responds to reverse burst. Does anyone know for sure if it is supposed to send reverse burst? If so, how do I get it to do it?
RE: [Repeater-Builder] Zetron 38A not sending reverse burst
You have discovered one of many dirty little secrets that apply to aftermarket tone panels. When designing the 38A tone panel, and many other products, Zetron overlooked the fact that reverse burst is essential in the repeated audio. From a close examination of the 38A manual and schematics, it appears that it will decode CTCSS reverse burst and CDCSS turnoff code, and MAY generate CDCSS turnoff code, but I see no evidence that it can generate reverse burst. That alone is a major shortcoming! Zetron is not the only manufacturer that ignored reverse burst encoding when designing a community repeater controller. Instrument Associates, which produced the i20R On-site Repeater Controller for the Motorola GR1225 desktop repeater, did likewise. I did not realize this until I found that squelch crashes were immediately heard as soon as I put the i20R in service. Although some fans of the old Highway Patrol shows starring Broderick Crawford may enjoy the sound of a squelch crash, I do not, nor do any of my radio users. That i20R was pulled from service immediately, and put on the shelf! There are two different formats for CTCSS reverse burst STE (Squelch Tail Elimination) that are defined in TIA-603-C, the international standard for land-mobile radio performance and design. One format, used principally by Motorola, uses a 120-degree phase shift, while the other format, used by Kenwood and many others, uses a 180-degree phase shift. Since modern radios often use digital signal processing to encode and decode low-speed data (CTCSS and CDCSS), it is all too easy to design a circuit that responds perfectly to 180-degree phase shift but ignores 120-degree phase shift, and vice-versa. Zetron and others couldn't be bothered to create a CTCSS encoder that could be switched between the two reverse-burst formats, so they just ignored the problem. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of wspx472 Sent: Wednesday, November 18, 2009 10:15 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Zetron 38A not sending reverse burst I am trying to get a repeater going using a 38A and find that it doesn't send reverse burst. I thought I saw that it did in the manual but upon looking again, all I see is where it responds to reverse burst. Does anyone know for sure if it is supposed to send reverse burst? If so, how do I get it to do it?
[Repeater-Builder] Zetron 38A and Max Manuals
Thanks to the generous contributions of George, N3GH, and Jack, K6YC, I have collected and resized the needed schematics and merged them into complete manuals- one for the Zetron 38A and one for the Zetron 38Max. I have already uploaded both manuals in full-page PDF to the Zetron folder in the Files section of the Repeater-Builder Group. The same manuals will soon be available in the Zetron section of the RBTIP. The schematics are in their correct locations within each manual, so you don't have to download them separately. 73, Eric Lemmon WB6FLY
[Repeater-Builder] Zetron 38a Schematics
Greetings All! I have uploaded PDF files of schematics for the Zetron 38A controller. Have fun! 73, N3GH George
Re: [Repeater-Builder] Zetron 38a Schematics
That's like totally great news, dude! One very important piece of information missing, however. Bob M. == --- On Tue, 7/29/08, n3gh_1 [EMAIL PROTECTED] wrote: From: n3gh_1 [EMAIL PROTECTED] Subject: [Repeater-Builder] Zetron 38a Schematics To: Repeater-Builder@yahoogroups.com Date: Tuesday, July 29, 2008, 8:45 PM Greetings All! I have uploaded PDF files of schematics for the Zetron 38A controller. Have fun! 73, N3GH George
Re: [Repeater-Builder] Zetron 38A Manual
Yep, he did. The schematics pages in that PDF file are blank (unfortunately it's all we have). A good example of Zetron customer service at its best. I've heard it from several people - they buy Zetron, they shelve the manual. Several years later the unit needs repair - maybe they zap a COR input, or something. They pull the manual off the shelf, and the schematics are blank. Unhappy customers tend to make later purchases elsewhere. Mike At 12:06 PM 04/24/08, you wrote: Doesn't anyone check the website or do a google search anymore?? http://www.repeater-builder.com/zetron/zetron-model-38a-inst%20manual-025-9043y.pdfhttp://www.repeater-builder.com/zetron/zetron-model-38a-inst%20manual-025-9043y.pdf Scott Scott Zimmerman Amateur Radio Call N3XCC 474 Barnett Rd Boswell, PA 15531 - Original Message - From: mailto:[EMAIL PROTECTED]Jack Davis To: mailto:Repeater-Builder@yahoogroups.comRepeater-Builder@yahoogroups.com Sent: Wednesday, April 23, 2008 11:24 PM Subject: [Repeater-Builder] Zetron 38A Manual Does anyone have the schematics for a Zetron Model 38A repeater controller? The pages are blank in my manual and I need to fix it. Thanks, Jack K6YC -- No virus found in this incoming message. Checked by AVG. Version: 7.5.524 / Virus Database: 269.23.2/1389 - Release Date: 4/21/2008 8:34 AM
Re: [Repeater-Builder] Zetron 38A Manual
Doesn't anyone check the website or do a google search anymore?? http://www.repeater-builder.com/zetron/zetron-model-38a-inst%20manual-025-9043y.pdf Scott Scott Zimmerman Amateur Radio Call N3XCC 474 Barnett Rd Boswell, PA 15531 - Original Message - From: Jack Davis To: Repeater-Builder@yahoogroups.com Sent: Wednesday, April 23, 2008 11:24 PM Subject: [Repeater-Builder] Zetron 38A Manual Does anyone have the schematics for a Zetron Model 38A repeater controller? The pages are blank in my manual and I need to fix it. Thanks, Jack K6YC -- No virus found in this incoming message. Checked by AVG. Version: 7.5.524 / Virus Database: 269.23.2/1389 - Release Date: 4/21/2008 8:34 AM
[Repeater-Builder] Zetron 38A Manual
Does anyone have the schematics for a Zetron Model 38A repeater controller? The pages are blank in my manual and I need to fix it. Thanks, Jack K6YC
[Repeater-Builder] zetron 38a
Folks, I just got a Zetron 38A at a hamfest. Works fine in the repeater but I have tried the password code and no results. It is listed in the book as 12123#. Someone must have changed it... What do I do now? Can it be set back to a factory default? thanks, ron
Re: [Repeater-Builder] zetron 38a
take out the chip with the battery and unplug the chip from the battery give it 3 mins or so and put it back should default. - Original Message - From: rwjohn49 To: Repeater-Builder@yahoogroups.com Sent: Saturday, November 03, 2007 9:11 PM Subject: [Repeater-Builder] zetron 38a Folks, I just got a Zetron 38A at a hamfest. Works fine in the repeater but I have tried the password code and no results. It is listed in the book as 12123#. Someone must have changed it... What do I do now? Can it be set back to a factory default? thanks, ron
Re: [Repeater-Builder] zetron 38a
Look inside the unit and find the ram IC that is plugged into the Dallas Semiconductor battery backup chip. Remove the ram IC from the battery backup chip for several seconds and plug it back in. It will default back to the factory original 12123. The controller will not be in the normal RS-232 control mode (be sure you build the special cable shown in the manual) after this operation though. It will be in the 'Model 8' mode. Here is the way to get it back into the normal RS-232 mode so you can enter the 12123 and get access: If the port is currently set for Model 8 mode and DTMF programming on the radio channel is not possible, the terminal may be used to simulate a Model 8 to change the settings. Perform the following procedure: Set the terminal for 4800 baud, then cycle power on the Model 38. The message READY will appear on the terminal, followed by a _ prompt. On the CRT, type in 19, then press the ENTER key. The message CRT should appear, (selects CRT mode) and press ENTER. When the _ prompt returns, type in 1 and press ENTER. Now cycle power on the panel to get the Enter Password == _ prompt. 73 - Jim W5ZIT rwjohn49 [EMAIL PROTECTED] wrote: Folks, I just got a Zetron 38A at a hamfest. Works fine in the repeater but I have tried the password code and no results. It is listed in the book as 12123#. Someone must have changed it... What do I do now? Can it be set back to a factory default? thanks, ron __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
Re: [Repeater-Builder] Zetron 38A Programming
Al, I would program the Z38A the way you have with one change. I am sure the system ID should be the same as the user ID, so instead of assigning the system ID to an unused user ID, I would use the user ID as the system ID. Just enter the user number for the tone you are using for normal user use in the system ID and that should work. I have had no case of the ID going away completely like you mention. I have never used the system ID except for long enough to see that it caused an ID every interval entered for the ID. The user ID runs at the end of the first transmission the user makes and will not run again until the ID interval expires. There will be no user ID after the ID timer for the user expires, only after the end of the next transmission the user makes. If you wanted to identify each user on the system, I guess you could assign a different tone access to each user and then enable the DTMF user ID at the end of each transmission. If you had a DTMF readout on a receiver listening to the repeater, you could identify each user that way. I don't remember if you could assign a different ID interval to the system ID from the user ID, but at the end of the first transmission a user makes, you could send his CW ID and have him identified each time he starts a session on the repeater and every ID interval after that. The first thing I did on setting up my Z38As was to go through the manual I found at the repeater-builders site (courtesy Eric Lemmon) and verify each command that my unit will respond to. I found that the manual was for a later model Z38A than the ones I have, and my units respond to a sub-set of the commands found in the manual. In particular, my units will not operate open squelch, you must have a tone to get into them. The later model units will allow you to enable user 0 and have the repeater operate with just the COR input and no tone. I have never considered using the individual user ID in an amateur radio application. I just entered the repeater callsign in each tone frequency I enabled. The reason we even have more than one tone enabled is to allow different uses of the repeater. Normal operation requires one tone, while operation of the EchoLink interface requires a different tone. And special use of the repeater for Search and Rescue operations uses a third tone so that the operating time for this mode can be reported as verified emergency operations to our site sponsor. We have a requirement at one site to report all emergency operations to help validate the need for the site, and the power it consumes. By the way, the ID is transmitted with a tone when it is enabled, so for the EchoLink tone we disable the ID in the Z38A for that tone and let EchoLink ID the repeater when that mode is in use. This prevents the ID from being transmitted down the in-band link to EchoLink, but any other use of the repeater on the other tone freqs will result in a normal repeater generated ID. If the Z38A is configured to not transmit the tone during the squelch tail, no problems with an in-band link into EchoLink occur. 73 - Jim W5ZIT radiotech808 [EMAIL PROTECTED] wrote: Hi All, Jim maybe one for you ? New Zetron 38A installed this morning so great to have the repeater back on again until I repair the other logic since we still require 1750Hz access I have managed to get a bit lost in the programming of the unit ( not a good idea to do programming after you first get out of bed !) Once again what I require morse id every 15 min's ( becon mode ) which I think is the system id, which is then assigned to a user ie a user who is enabled but reserved. Once the repeater is opened up a morse id for the current user ever over or every 3 mins What I am finding (with my programming) is system id every 15 mins which changes once the repeater panel is used no morse after the user has accessed the radio ! Regards Al __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
Re: [Repeater-Builder] Zetron 38A Programming
Jim, Thanks once again for the input help As it stands tonight the repeater is operational after 5 hours at site setting up the audio again problem is the base station we use is not that forgiving with is comes to audio levels (Nokia BSR 150) On the older Zetron panel which was the basic 38 I could go onto the board do further adjustment although the newer 38A does not have any pots to adjust so out with the resister box a good set of ears As the station ID it has settled down to every 15 minutes although the Morse is going out at around 22 words a minute, awaiting call back from Zetron to see if I can adjust the timer speed on this apart from using the enabled user number Get on very well with Zetron here in the UK as used to use them with my last company so when it comes to support manuals they are very happy to help me out ( I aways have them laughing on the phone when I call so I have never been forgotten even there operator knows me by first name before saying who I am) Awaiting a call back email from Jose at tech support, one thing I did find out is there are hidden menus passwords so once I get that information I will pass it on to yourself. Jim I would rather leave the Zetron on site as we have major problems with transients like the site goes onto generator during working hour the back onto the grid after with has caused endless problems which I think was the main cause of the original logic (RC210) going u/s least the Zetron would cope well In all the year of looking after commercial repeater sites I have not had one go down yet Right time for bed here so better move PS For you information the repeater is GB3FF it does run on echo-link but just moved home so awaiting the antenna to go up so off line just now oh if you fancy having a look at the set up www.csfmg.com it will give you an idea on how things run here in Scotland Many thanks once again Jim your help is much appreciated Best Regards Al Jim Brown [EMAIL PROTECTED] wrote: Al, I would program the Z38A the way you have with one change. I am sure the system ID should be the same as the user ID, so instead of assigning the system ID to an unused user ID, I would use the user ID as the system ID. Just enter the user number for the tone you are using for normal user use in the system ID and that should work. I have had no case of the ID going away completely like you mention. I have never used the system ID except for long enough to see that it caused an ID every interval entered for the ID. The user ID runs at the end of the first transmission the user makes and will not run again until the ID interval expires. There will be no user ID after the ID timer for the user expires, only after the end of the next transmission the user makes. If you wanted to identify each user on the system, I guess you could assign a different tone access to each user and then enable the DTMF user ID at the end of each transmission. If you had a DTMF readout on a receiver listening to the repeater, you could identify each user that way. I don't remember if you could assign a different ID interval to the system ID from the user ID, but at the end of the first transmission a user makes, you could send his CW ID and have him identified each time he starts a session on the repeater and every ID interval after that. The first thing I did on setting up my Z38As was to go through the manual I found at the repeater-builders site (courtesy Eric Lemmon) and verify each command that my unit will respond to. I found that the manual was for a later model Z38A than the ones I have, and my units respond to a sub-set of the commands found in the manual. In particular, my units will not operate open squelch, you must have a tone to get into them. The later model units will allow you to enable user 0 and have the repeater operate with just the COR input and no tone. I have never considered using the individual user ID in an amateur radio application. I just entered the repeater callsign in each tone frequency I enabled. The reason we even have more than one tone enabled is to allow different uses of the repeater. Normal operation requires one tone, while operation of the EchoLink interface requires a different tone. And special use of the repeater for Search and Rescue operations uses a third tone so that the operating time for this mode can be reported as verified emergency operations to our site sponsor. We have a requirement at one site to report all emergency operations to help validate the need for the site, and the power it consumes. By the way, the ID is transmitted with a tone when it is enabled, so for the EchoLink tone we disable the ID in the Z38A for that tone and let EchoLink ID the repeater when that mode is in use. This prevents the ID from being
[Repeater-Builder] Zetron 38A Programming
Hi All, Jim maybe one for you ? New Zetron 38A installed this morning so great to have the repeater back on again until I repair the other logic since we still require 1750Hz access I have managed to get a bit lost in the programming of the unit ( not a good idea to do programming after you first get out of bed !) Once again what I require morse id every 15 min's ( becon mode ) which I think is the system id, which is then assigned to a user ie a user who is enabled but reserved. Once the repeater is opened up a morse id for the current user ever over or every 3 mins What I am finding (with my programming) is system id every 15 mins which changes once the repeater panel is used no morse after the user has accessed the radio ! Regards Al
Re: [Repeater-Builder] Zetron 38A Programming
For those interested parties and maybe someone in the not too distant future that may need some help . After determining how to get the ZETRON 38A out of transmit and eliminated the constant carrier indication I still had serial coomunications issues. We will address the issues one at a time. Carrier - really simply, I turned down audio input. Nothing is connected, but whatever. Transmit - To eliminate the transmit condition I had to initiate the test sequence which involved powering on the Z38A and within the first ten seconds after power is applied you must short site alarm to ground 15 times. This will stat the test sequence which will release the TX condition. Last but not least the serial communications problems were mostly due to having access to a newer manual. According to the manual the Z38A defaults to 1200 Baud or 4800 if the RS232 port is in Model 8 mode. After speaking with a very prompt and helpful Tech at Zetron I found out that any firmware prior to version 5.0 defaults to 300 baud and there was my problem. I did actually try 300 baud just to see, but I appearantly did not wait long enough for the computer to communicate with teh Z38A. Also the Zetron Tech informed me that the older firmware will actually lock itself into Model 8 mode if you power it on while it is connected to the PC and you can only release it by pulling the RAM chip. I hope this information helps someone at some point in time. Thanks for the bandwidth and all the help. Tim Billingsley --- Tim Billingsley [EMAIL PROTECTED] wrote: Zetron 38A 702-9075 rev. P I have built the serial interface cable for the second time and checked the pinout multiple times. I am using MS's canned Hyperterm program. I have tried both 1200 and 4800 baud 8 bit no parity 1 check bit I only have the power connections at this time. No other connections other than the ground jumper between ground and PTT ground are in place. This jumper was on it when I received it. (Thank you - you know who you are) I have yet to even get a glimmer of response from the Z38 on the computer. Maybe Hypertrm is the wrong critter for the job or maybe it's the operator heavy on the operator. Also I have not found any troubleshooting information in the manual that I have. I am not completely sure that this is a properly functioning unit, but this is what I have. When I connect power to the unit Power, Carrier, and DTMF LEDs initially come on Power and Carrier remain on and DTMF goes off immediately a few seconds later the Encoding LED flashes and continues to flash every 5 seconds. I know that there are some of you that are familiar with this unit and using it currently. If you can provide some insight or assistance it would be greatly appreciated. Sorry guys. I am really green at all of this stuff, but I would ike to try to do as well as I can with the resources I have available. Thanks Tim Tim Billingsley, KD5CKP http://www.qsl.net/kd5ckp/ __ Discover Yahoo! Stay in touch with email, IM, photo sharing and more. Check it out! http://discover.yahoo.com/stayintouch.html Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Zetron 38A Programming
Zetron 38A 702-9075 rev. P I have built the serial interface cable for the second time and checked the pinout multiple times. I am using MS's canned Hyperterm program. I have tried both 1200 and 4800 baud 8 bit no parity 1 check bit I only have the power connections at this time. No other connections other than the ground jumper between ground and PTT ground are in place. This jumper was on it when I received it. (Thank you - you know who you are) I have yet to even get a glimmer of response from the Z38 on the computer. Maybe Hypertrm is the wrong critter for the job or maybe it's the operator heavy on the operator. Also I have not found any troubleshooting information in the manual that I have. I am not completely sure that this is a properly functioning unit, but this is what I have. When I connect power to the unit Power, Carrier, and DTMF LEDs initially come onPower and Carrier remain on and DTMF goes off immediatelya few seconds later the Encoding LED flashes and continues to flash every 5 seconds. I know that there are some of you that are familiar with this unit and using it currently. If you can provide some insight or assistance it would be greatly appreciated. Sorry guys. I am really green at all of this stuff, but I would ike to try to do as well as I can with the resources I have available.Thanks Tim bradley glen [EMAIL PROTECTED] wrote: Hi TimYou can use a hyper terminal program such as Bitcomand extract all the user info .regardsBrad--- Tim Billingsley <[EMAIL PROTECTED]>wrote: The following is quote from the 38A manual. what I would like to know (from users of the 38A) is there a way to 'extract' a configuration list from the controller in the same way you can display all the configuration information from a TNC? or is it strictly menu, prompt, and response as stated here? Thanks Tim= = = = = = = = = = = Programming Via The RS-232 Interface The Model 38 RS-232 port is valuable for initial test and adjustment, as well as general purpose programming and monitoring. All programming is done with friendly menus and plain English prompts. Programming is best done with an RS-232 display terminal or PC. Tasks such as adding, deleting, modifying parameters, retrieving airtime, and real-time monitoring may all be accomplished without disrupting communications. Most any RS-232 terminal or computer running a communications program may be used. __ Yahoo! Mail Mobile Take Yahoo! Mail with you! Check email on your mobile phone. http://mobile.yahoo.com/learn/mail Yahoo! Groups Links [EMAIL PROTECTED] __Do You Yahoo!?Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com Yahoo! Groups Links* To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/* To unsubscribe from this group, send an email to:[EMAIL PROTECTED]* Your use of Yahoo! Groups is subject to:http://docs.yahoo.com/info/terms/Tim Billingsley, KD5CKPhttp://www.qsl.net/kd5ckp/ Do You Yahoo!? Yahoo! Small Business - Try our new Resources site! Yahoo! Groups Links To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [Repeater-Builder] Zetron 38A Programming
Hi Tim 1st make sure that the carrier light does not stay on as if the SITE alarm is active for POWER UP it waits for the carrier to go off before sending tones out. This scenario produces a lock-up catch22 situation. Best try Bitcom as all should be ok on that program. Common problems with thoe panels are the Max 232 Ic that is close to the dB9 connector-replace to start off with. I will send you some software to assist you. Regards Bradley Glen ZS5WT B-Comm Node 8300 --- Tim Billingsley [EMAIL PROTECTED] wrote: Zetron 38A 702-9075 rev. P I have built the serial interface cable for the second time and checked the pinout multiple times. I am using MS's canned Hyperterm program. I have tried both 1200 and 4800 baud 8 bit no parity 1 check bit I only have the power connections at this time. No other connections other than the ground jumper between ground and PTT ground are in place. This jumper was on it when I received it. (Thank you - you know who you are) I have yet to even get a glimmer of response from the Z38 on the computer. Maybe Hypertrm is the wrong critter for the job or maybe it's the operator heavy on the operator. Also I have not found any troubleshooting information in the manual that I have. I am not completely sure that this is a properly functioning unit, but this is what I have. When I connect power to the unit Power, Carrier, and DTMF LEDs initially come on Power and Carrier remain on and DTMF goes off immediately a few seconds later the Encoding LED flashes and continues to flash every 5 seconds. I know that there are some of you that are familiar with this unit and using it currently. If you can provide some insight or assistance it would be greatly appreciated. Sorry guys. I am really green at all of this stuff, but I would ike to try to do as well as I can with the resources I have available. Thanks Tim bradley glen [EMAIL PROTECTED] wrote: Hi Tim You can use a hyper terminal program such as Bitcom and extract all the user info . regards Brad --- Tim Billingsley wrote: The following is quote from the 38A manual. what I would like to know (from users of the 38A) is there a way to 'extract' a configuration list from the controller in the same way you can display all the configuration information from a TNC? or is it strictly menu, prompt, and response as stated here? Thanks Tim = = = = = = = = = = = Programming Via The RS-232 Interface The Model 38 RS-232 port is valuable for initial test and adjustment, as well as general purpose programming and monitoring. All programming is done with friendly menus and plain English prompts. Programming is best done with an RS-232 display terminal or PC. Tasks such as adding, deleting, modifying parameters, retrieving airtime, and real-time monitoring may all be accomplished without disrupting communications. Most any RS-232 terminal or computer running a communications program may be used. __ Yahoo! Mail Mobile Take Yahoo! Mail with you! Check email on your mobile phone. http://mobile.yahoo.com/learn/mail Yahoo! Groups Links [EMAIL PROTECTED] __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com Yahoo! Groups Links Tim Billingsley, KD5CKP http://www.qsl.net/kd5ckp/ - Do You Yahoo!? Yahoo! Small Business - Try our new Resources site! __ Do you Yahoo!? Yahoo! Small Business - Try our new Resources site http://smallbusiness.yahoo.com/resources/ Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Zetron 38A connector
I may have an extra. Is this the connector that wires connect to that plugs into the Zetron? Russ On 5/21/05, Tim Billingsley [EMAIL PROTECTED] wrote: Is anyone aware of an alternate source for the 15 pin terminal strip onthe back of the Zetron 38A? I am guessing that this is probably a propritary item, but no harm in asking around.ThanksTim Billingsley, KD5CKPhttp://www.qsl.net/kd5ckp/__ Yahoo! Mail MobileTake Yahoo! Mail with you! Check email on your mobile phone.http://mobile.yahoo.com/learn/mailYahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/* To unsubscribe from this group, send an email to: [EMAIL PROTECTED]* Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/ Yahoo! Groups Links To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
[Repeater-Builder] Zetron 38A Programming
The following is quote from the 38A manual. what I would like to know (from users of the 38A) is there a way to 'extract' a configuration list from the controller in the same way you can display all the configuration information from a TNC? or is it strictly menu, prompt, and response as stated here? Thanks Tim = = = = = = = = = = = Programming Via The RS-232 Interface The Model 38 RS-232 port is valuable for initial test and adjustment, as well as general purpose programming and monitoring. All programming is done with friendly menus and plain English prompts. Programming is best done with an RS-232 display terminal or PC. Tasks such as adding, deleting, modifying parameters, retrieving airtime, and real-time monitoring may all be accomplished without disrupting communications. Most any RS-232 terminal or computer running a communications program may be used. __ Yahoo! Mail Mobile Take Yahoo! Mail with you! Check email on your mobile phone. http://mobile.yahoo.com/learn/mail Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Zetron 38A Manual
Thanks to all that replied. I appreciate your time and information. 73 Tim KD5CKP Yahoo! Mail Stay connected, organized, and protected. Take the tour: http://tour.mail.yahoo.com/mailtour.html Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Zetron 38A Manual
Can anyone tell me where to find a manual for the Zetron 38A or at least a PDF version if print copies aren't available? Photo copies acceptable as well if all else fails. Tim KD5CKP Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Zetron 38A wanted in UK
Hi All, I'm after a Zetron 38A contoller for a repeater project in the UK..Anyone got one lurking please? Cheers Dave G7UZN Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Zetron 38A wanted in UK
Dave, I have a Philips badged version of the 38A in use on GB3DX to lockout audio on the main Rx when remote rxs are in use. The unit seems to decode into the noise more than any mobile/portable set. I think a spare unit is available- contact me off list. [EMAIL PROTECTED] Ian-G8PWE -Walsall www.gb3dx.com - Original Message - From: dave_g7uzn [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Friday, December 24, 2004 12:41 PM Subject: [Repeater-Builder] Zetron 38A wanted in UK Hi All, I'm after a Zetron 38A contoller for a repeater project in the UK..Anyone got one lurking please? Cheers Dave G7UZN Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Zetron 38A
Try this link to a PDF on Zetron's site for the Z38A It may be what you need. http://www.zetron.com/pages/english/specpdf/38maxspc.pdf Good luck, Martin W4FOT == -Original Message- From: mdnosliw [mailto:[EMAIL PROTECTED] Sent: Friday, July 30, 2004 5:44 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Zetron 38A Anyone have a clue how to program this controller. I picked up a MSF500 repeater that has one. Have tried conectiing to the serial port and it does not seem to talk. Zetron has offered to sell me a book for $35 but it is not for the older model I have. Any help apreciated. Mark KB1IOZ Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
