Re: [Repeater-Builder] Re: Connecting Multiple TNCs
On Aug 2, 2007, at 9:09 PM, Mike Reed wrote: .http://www.packetradio.com/packetnetworks.html#2 No, that's just a null-modem cable between two TNC's to make a cross- band gateway. Certainly more like a repeater, since that's supposed to be the topic of this mailing list, but it's not what the original poster asked for: Two TNC's hooked to the same radio. -- Nate Duehr [EMAIL PROTECTED]
Re: [Repeater-Builder] Cushman CE-5
Saw this on eham.net 2007-07-14 *KD0YX http://www.eham.net/user/profile/KD0YX* Test Equipment *FS: About 20 Cushman Plug Mods $50 Ea http://www.eham.net/classifieds/detail/235720* I have a large selection of about 20 Cushman Plug in Modules. I know they will work fine for the CE6 Series service monitors but may fit others like the CE3. Please check your manual. I need to get $50 each plus shipping. I can take PayPal or a Postal Money Order. I will leave this listing up on the swap board for remainder of July. In Early August whatever is left will go on Ebay. I have the following: 301, (2) 304B, 304, (3) 303, (4) 305, (2) 306E, 305B, 305, (2)308, 301,301A, 303 and 308. hwingate wrote: The power transformer in the 301 scope has died. Does anyone know where I might find the transformer or a junker for parts ? This scope is used in both the CE-3 and CE-5. Thanks Henry, K4HAL Yahoo! Groups Links
Re: [Repeater-Builder] Your old work bench - shop pictures are on ebay!
Whats wrong with a Dynamotor? Ran my Moto 140-D just fine. My headlights got real dim when I would squeeze the PTT but was a great power supply. Then T power came along and caused all sort of new problems. Seems to me we got started with this FM thing back in the 50's some time. Vincent N6OA/2 Don KA9QJG wrote: The First time I got Shocked at about 16 yrs Old now 60, I had a Regency Tunable scanner/Receiver had a Vibrator Sometimes it would not work. But if you would bang on it would. So I got a Hacksaw and cut the Cover off thinking I could fix it, I put power on it and Heck it was only 12 Volts, I could hold that in my hand and never got shocked So the Old vibrator was not working I just put my Finger in it and pushed a little well it started working and I got knocked on my Butt Hurt like heck, I will never forget that and I learned at a young age to respect Electricity. Yes we know we are getting old when we recall seeing Equipment like this I recall many Yrs ago giving a Guy who was a Ham a jump Start Because he had a old Motorola in the Trunk on 6 Meters it had a Dynamotor Power Supply. Happy Repeater Building Don KA9QJG
Re: [Repeater-Builder] Kenwood TK-353 May be OT
Generally you have to put the Kenwood radios in to programming mode, then you can read/write to it. Try one of the following to get it into programming mode. Press and hold the button below PTT and C button and then turn on. Wait a couple of seconds. or Press and hold MON and A buttons, and then turn on. Wait a couple of seconds. You should also check out the Kenwoodlmr yahoo group. -Sean Hey guys, I just got handed a Kenwood TK-353 to program...being new to the 353 I am not sure where to look with this problem-- I have the software and cable but cannot communicate with the radio. The port settings are correct but the computer and radio will not handshake at all. Any special procedure for programming this one? Yes I am running the software off my old 486MHz machine in DOS mode. Andy KC2GOW
Re: Re: [Repeater-Builder] Connecting Multiple TNCs
Nate, I looked in my KPC-3+ manual and they do call out a DCD line on both the RS232 DB25 connector, pin 8, and also on the 9 pin radio connector. However, I cannot find any reference to it in the manual. Probably there, but cannot find. Wonder why they could put in a simple chart saying pin 1, does this, lo or high to turn on/off. In the RS232 spec the pin 8, known as CD, is Receive Line Signal Detector. It does take the unit on/off line. So I am assuming if the CD (DCD here) is in off state then the TNC will not do anything including receive or transmit??? From the inital question this probably would work since little data might be going thru the system. 73, ron, n9ee/r From: Nate Duehr [EMAIL PROTECTED] Date: 2007/08/03 Fri AM 03:08:44 CDT To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Connecting Multiple TNCs On Aug 2, 2007, at 7:03 PM, Ron Wright wrote: Nate, Would just disabling one PTT while the other is txing mean the disabled would think it was transmitting, but not really. That's not what I recommended. I recommended tying one's PTT signal to the other's RECEIVE signal so it would hold off and not transmit. (TNC's won't transmit over an incoming received signal.) As someone else and myself both pointed out, you have to rely on having a real COS signal from the radio and have your TNC's set up to use that, and not use a software DCD (data carrier detect) that looks for real tones, you have to do it the old fashioned way with a hardware COS line from the rig. Unless there is some sort of feedback to tell a TNC to wait then its data would be lost. I guess some TNCs have this wait line INPUT allowing one ptt to talk to the other TNC commanding a wait. No, TNC's buffer data all the time. If the channel is busy when the computer connected to them sends data to them, they buffer and wait. Then when the channel's clear, they transmit that data. So it's not really a separate WAIT line, you're just tricking TNC #2 to think that the channel is busy when TNC #1 is really transmitting, and vice-versa. This is kinda off-topic for RB, so I'll stop now -- but suffice it to say, hooking two TNC's to the same rig would be pretty simple... as long as you're not relying on the TNC to determine if the channel is busy, and you're using the old-fashioned system that simply watched the squelch circuit of the receiver... if the squelch was open, the TNC knew it shouldn't transmit. (Once upon a time, there were endless debates about the benefits of doing busy-channel detection by either method, and which one was better over the last couple of decades... real squelch circuits will also give way to voice traffic on the same frequency... software DCD's won't... etc. etc. etc.) -- Nate Duehr, WY0X [EMAIL PROTECTED] Ron Wright, N9EE 727-376-6575 MICRO COMPUTER CONCEPTS Owner 146.64 repeater Tampa Bay, FL No tone, all are welcome.
Re: [Repeater-Builder] Connecting Multiple TNCs
On Aug 2, 2007, at 7:03 PM, Ron Wright wrote: Nate, Would just disabling one PTT while the other is txing mean the disabled would think it was transmitting, but not really. That's not what I recommended. I recommended tying one's PTT signal to the other's RECEIVE signal so it would hold off and not transmit. (TNC's won't transmit over an incoming received signal.) As someone else and myself both pointed out, you have to rely on having a real COS signal from the radio and have your TNC's set up to use that, and not use a software DCD (data carrier detect) that looks for real tones, you have to do it the old fashioned way with a hardware COS line from the rig. Unless there is some sort of feedback to tell a TNC to wait then its data would be lost. I guess some TNCs have this wait line INPUT allowing one ptt to talk to the other TNC commanding a wait. No, TNC's buffer data all the time. If the channel is busy when the computer connected to them sends data to them, they buffer and wait. Then when the channel's clear, they transmit that data. So it's not really a separate WAIT line, you're just tricking TNC #2 to think that the channel is busy when TNC #1 is really transmitting, and vice-versa. This is kinda off-topic for RB, so I'll stop now -- but suffice it to say, hooking two TNC's to the same rig would be pretty simple... as long as you're not relying on the TNC to determine if the channel is busy, and you're using the old-fashioned system that simply watched the squelch circuit of the receiver... if the squelch was open, the TNC knew it shouldn't transmit. (Once upon a time, there were endless debates about the benefits of doing busy-channel detection by either method, and which one was better over the last couple of decades... real squelch circuits will also give way to voice traffic on the same frequency... software DCD's won't... etc. etc. etc.) -- Nate Duehr, WY0X [EMAIL PROTECTED]
[Repeater-Builder] 2 TNC's into 1 Radio
Is this what you're looking for? http://www.ccdx.org/zedyx/mods/2TNCs1Radio.htm
Re: Re: [Repeater-Builder] UHF motorola maxtracs
at the cottage till first of week..will check first of the week and let you know Bob ve1ym From: va2dq [EMAIL PROTECTED] Date: 2007/08/02 Thu PM 09:30:48 EDT To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] UHF motorola maxtracs well at leats one Rob but 2 or 6 would be great my uhf has 8 or 16 i dont remember and it is clean as new gervais ve2ckn - Original Message - From: Bob To: Repeater-Builder@yahoogroups.com Sent: Thursday, August 02, 2007 10:37 AM Subject: Re: [Repeater-Builder] UHF motorola maxtracs How many channels do you wish in the GM-300(VHF) Please let me know Bob Oke VE1YM - Original Message - From: va2dq To: Repeater-Builder@yahoogroups.com Sent: Tuesday, July 31, 2007 7:34 PM Subject: Re: [Repeater-Builder] UHF motorola maxtracs Jed i have here and GM300 UHF i am looking for an GM300 vhf in exchange i dont need the uhf anymore 73/s gervais ve2ckn - Original Message - From: Jed Barton To: repeater-builder@yahoogroups.com Sent: Tuesday, July 31, 2007 1:29 PM Subject: [Repeater-Builder] UHF motorola maxtracs Hey guys, Alright, I need your help. Anyone know of a good supplier with some UHF maxtracs? I need a handfull of them. I need the ones with the 16 pin connecter. Thanks, Jed No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.476 / Virus Database: 269.11.2/931 - Release Date: 8/1/2007 4:53 PM Bob Oke VE1YM 91 Allison Dr Moncton NB E1E 2T7
Re: Re: [Repeater-Builder] Your old wo rk bench - shop pictures are  on ebay!
Whats wrong with a Dynamotor? Well lets see, hi, just for fun. 1. very inefficent with it producing lots of heat. 2. very very expensive to make, component and labor wise (the labor factor goes away if made in China, but can't count on getting one that want kill you with normal use). 3. very heavy (minor factor in aircraft that requires 11 lb of air plane to fly 1 lb of payload...on the Space Suttle cost $10,000/lb to fly). 4. very noisey, but so are the operators. 5. takes time to come up and deliever power. 6. not very well regulated, but for tubes not a problem. 7. takes up lots of space (in the progline took 1/3 of the radio. What is good about a Dynamotor? 1. makes pretty good boat anchor, however, some of the materials are not friendly to the enviorment. 2.. all I can think of However, some of the high powered first transmitters were Dynamotors. Actually took DC motors, geared them up to the RPM and added poles to a generator so one got the kHz of frequency wanted. Guess modulated the stator to get coil modulated AM. Now doing FM...minor problem. Did work better than the spark gap, but much harder to make and use. Last place where I had a real job we had to have 400 Hz power (was military electronics). A dynamotor config was used...60 Hz syncronise? motor coupled to shaft of 400 Hz generator. Worked great. The Dynamotor was what was avialable for the time, did its job and gave many like Vincent N6OA/2 and many others the pleasure of radio. I love this stuff. 73, ron, n9ee/r From: Vincent McKever [EMAIL PROTECTED] Date: 2007/08/01 Wed AM 07:59:19 CDT To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Your old work bench - shop pictures are on ebay! Whats wrong with a Dynamotor? Ran my Moto 140-D just fine. My headlights got real dim when I would squeeze the PTT but was a great power supply. Then T power came along and caused all sort of new problems. Seems to me we got started with this FM thing back in the 50's some time. Vincent N6OA/2 Don KA9QJG wrote: The First time I got Shocked at about 16 yrs Old now 60, I had a Regency Tunable scanner/Receiver had a Vibrator Sometimes it would not work. But if you would bang on it would. So I got a Hacksaw and cut the Cover off thinking I could fix it, I put power on it and Heck it was only 12 Volts, I could hold that in my hand and never got shocked So the Old vibrator was not working I just put my Finger in it and pushed a little well it started working and I got knocked on my Butt Hurt like heck, I will never forget that and I learned at a young age to respect Electricity. Yes we know we are getting old when we recall seeing Equipment like this I recall many Yrs ago giving a Guy who was a Ham a jump Start Because he had a old Motorola in the Trunk on 6 Meters it had a Dynamotor Power Supply. Happy Repeater Building Don KA9QJG Ron Wright, N9EE 727-376-6575 MICRO COMPUTER CONCEPTS Owner 146.64 repeater Tampa Bay, FL No tone, all are welcome.
Re: Re: [Repeater-Builder] Connecting Multiple TNCs
* Ron Wright [EMAIL PROTECTED] [2007 Aug 03 08:48 -0500]: Nate, I looked in my KPC-3+ manual and they do call out a DCD line on both the RS232 DB25 connector, pin 8, and also on the 9 pin radio connector. However, I cannot find any reference to it in the manual. Probably there, but cannot find. Wonder why they could put in a simple chart saying pin 1, does this, lo or high to turn on/off. In the RS232 spec the pin 8, known as CD, is Receive Line Signal Detector. It does take the unit on/off line. So I am assuming if the CD (DCD here) is in off state then the TNC will not do anything including receive or transmit??? Perhaps this was dropped in the newer KPC-3 command set, but my old KPC-2 version 5.0 has this to say about the CD command: CD INTERNAL | EXTERNAL | SOFTWARE v3.0 ... When set to EXTERNAL, the carrier detect is supplied by an external device, connected to the XCD pin on the radio port. HTH, 73, de Nate -- Wireless | Amateur Radio Station N0NB | Successfully Microsoft Amateur radio exams; ham radio; Linux info @ | free since January 1998. http://www.qsl.net/n0nb/ | Debian, the choice of My Kawasaki KZ-650 SR @| a GNU generation! http://www.networksplus.net/n0nb/ | http://www.debian.org
Re: [Repeater-Builder] Connecting Multiple TNCs
Nate Bargmann wrote: * Ron Wright [EMAIL PROTECTED] [2007 Aug 03 08:48 -0500]: Nate, I looked in my KPC-3+ manual and they do call out a DCD line on both the RS232 DB25 connector, pin 8, and also on the 9 pin radio connector. However, I cannot find any reference to it in the manual. Probably there, but cannot find. Wonder why they could put in a simple chart saying pin 1, does this, lo or high to turn on/off. In the RS232 spec the pin 8, known as CD, is Receive Line Signal Detector. It does take the unit on/off line. So I am assuming if the CD (DCD here) is in off state then the TNC will not do anything including receive or transmit??? Perhaps this was dropped in the newer KPC-3 command set, but my old KPC-2 version 5.0 has this to say about the CD command: CD INTERNAL | EXTERNAL | SOFTWARE v3.0 ... When set to EXTERNAL, the carrier detect is supplied by an external device, connected to the XCD pin on the radio port. That's what I remember also... my KPC-9612 is so old, I have no idea what firmware is in it. Last time I checked the internal battery was dead, and it's been sitting on a shelf for years... I have lots better ways to move bits around these days than ham radio... sadly. Nate
[Repeater-Builder] TNC Carrier Detect, DCD
Best I recall there was a choice between hardwiring COR to the TNC or using internal Data Carrier Detect for the TNC to recognize activity on the radio channel. This was an input signal from the radio to the TNC. Way back whenSteve NU5D Nate Duehr wrote: Nate Bargmann wrote: * Ron Wright [EMAIL PROTECTED] [2007 Aug 03 08:48 -0500]: Nate, I looked in my KPC-3+ manual and they do call out a DCD line on both the RS232 DB25 connector, pin 8, and also on the 9 pin radio connector. However, I cannot find any reference to it in the manual. Probably there, but cannot find. Wonder why they could put in a simple chart saying pin 1, does this, lo or high to turn on/off. In the RS232 spec the pin 8, known as CD, is Receive Line Signal Detector. It does take the unit on/off line. So I am assuming if the CD (DCD here) is in off state then the TNC will not do anything including receive or transmit??? Perhaps this was dropped in the newer KPC-3 command set, but my old KPC-2 version 5.0 has this to say about the CD command: CD INTERNAL | EXTERNAL | SOFTWAREv3.0 ... When set to EXTERNAL, the carrier detect is supplied by an external device, connected to the XCD pin on the radio port. That's what I remember also... my KPC-9612 is so old, I have no idea what firmware is in it. Last time I checked the internal battery was dead, and it's been sitting on a shelf for years... I have lots better ways to move bits around these days than ham radio... sadly. Nate
[Repeater-Builder] Trident LTR Controller TNT
Is anybody looking for a spare or replacement Trident LTR TNT trunking repeater controller. I have such a unit and don't have any reason to keep it. Mike Mullarkey K7PFJ
Re: [Repeater-Builder] Trident LTR Controller TNT
is this the one with the BNC plug on it or the new ver. without? thanks John - Original Message - From: Mike Mullarkey To: Repeater-Builder@yahoogroups.com Sent: Friday, August 03, 2007 8:56 PM Subject: [Repeater-Builder] Trident LTR Controller TNT Is anybody looking for a spare or replacement Trident LTR TNT trunking repeater controller. I have such a unit and don't have any reason to keep it. Mike Mullarkey K7PFJ
Re: [Repeater-Builder] Kenwood TK-353 May be OT
That did the trick. Thanks a lot. Andy KC2GOW [EMAIL PROTECTED] wrote: Generally you have to put the Kenwood radios in to programming mode, then you can read/write to it. Try one of the following to get it into programming mode. Press and hold the button below PTT and C button and then turn on. Wait a couple of seconds. or Press and hold MON and A buttons, and then turn on. Wait a couple of seconds. You should also check out the Kenwoodlmr yahoo group. -Sean Hey guys, I just got handed a Kenwood TK-353 to program...being new to the 353 I am not sure where to look with this problem-- I have the software and cable but cannot communicate with the radio. The port settings are correct but the computer and radio will not handshake at all. Any special procedure for programming this one? Yes I am running the software off my old 486MHz machine in DOS mode. Andy KC2GOW - Take the Internet to Go: Yahoo!Go puts the Internet in your pocket: mail, news, photos more.
RE: [Repeater-Builder] Trident LTR Controller TNT
Has the BNC and DB connector for the repeater. Mike _ From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Maire-Radios Sent: Friday, August 03, 2007 5:48 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Trident LTR Controller TNT is this the one with the BNC plug on it or the new ver. without? thanks John - Original Message - From: Mike Mullarkey mailto:[EMAIL PROTECTED] To: Repeater-Builder@ mailto:Repeater-Builder@yahoogroups.com yahoogroups.com Sent: Friday, August 03, 2007 8:56 PM Subject: [Repeater-Builder] Trident LTR Controller TNT Is anybody looking for a spare or replacement Trident LTR TNT trunking repeater controller. I have such a unit and don't have any reason to keep it. Mike Mullarkey K7PFJ
