Re: [Repeater-Builder] question for commercial radio shops
I had a similar experience with a low power FM transmitter that a church put on the air. I started to get interference on my 6 meter repeater. It turned out that the local church moved their FM station to the tower that I am on and put their antenna on the top of the 300 foot tower 5 feet away from my 6 meter antenna. They never modified their license for the new location and were way over the height on the tower that they were licensed for. The problem was that I was running an ARR preamp that worked fine until the FM station caused overload. They ignored all that I warned them about and I ended up taking the preamp off. (I'm a guest on the tower and I'm not about to complain to the owner). Anyway, they are running more power then they are licensed for, too high on the tower for a low power lFM license, and never got licensed for the new location. All this for spreading the word of the Lord. They mean well, but seems ironic to me. 73, Joe, K1ike On 7/14/2010 10:46 PM, n5sx...@charter.net wrote: I would not do it. Explain that it is illegal, and could get him into serious trouble. And when he tries to hang the BUt its for a CHURCH CAMP guilt trip on you, remind him that Jesus told us to render to Cesar that which is Cesar's and unto the Lord that which is the Lord's.
RE: [Repeater-Builder] Icom OPC-617 Cable
Ryan, The information you want is at http://www.prestonmoore.com/opc-617.html JOhn -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of ryan_151 Sent: Tuesday, July 13, 2010 10:26 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Icom OPC-617 Cable im trying to use the OPC-617 cable with an Icom f121 radio to connect it to an intercom and need to know how what pins to use to connect my mic+- audio into the F121 radio and the f121 radio audio out +-. Any help with this woud be great, Thanks Yahoo! Groups Links __ Information from ESET NOD32 Antivirus, version of virus signature database 5277 (20100714) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com
[Repeater-Builder] Transmitter Combiner
Is there a cheap way to combine two txcvrs into one antenna... 144.39 APRS and 145.550 packet?
RE: [Repeater-Builder] Transmitter Combiner
You could try a duplexer? There's enough channel separation it should work OK. Not sure what duplexer would be best for running duplex though each side but I'm sure there out there. 73 Ross kc7rjk -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of na4it Sent: Thursday, July 15, 2010 1:04 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Transmitter Combiner Is there a cheap way to combine two txcvrs into one antenna... 144.39 APRS and 145.550 packet?
Re: [Repeater-Builder] Transmitter Combiner
About the only way is via a duplexer. (Cheap? Well... used??? ;- ) Joe M. na4it wrote: Is there a cheap way to combine two txcvrs into one antenna... 144.39 APRS and 145.550 packet?
Re: [Repeater-Builder] Transmitter Combiner
Maybe a pair of those 6 cavity mobile duplexers with the 5 MHz split can be configured as 6 notch sections each to reject the opposite frequency. and then combine them with a T to the antenna. Lossy, but should be cheap, I've seen those go in the $20 range. On Thu, Jul 15, 2010 at 1:49 PM, MCH m...@nb.net wrote: About the only way is via a duplexer. (Cheap? Well... used??? ;- ) Joe M. na4it wrote: Is there a cheap way to combine two txcvrs into one antenna... 144.39 APRS and 145.550 packet? Yahoo! Groups Links
Re: [Repeater-Builder] Transmitter Combiner
At 7/15/2010 13:53, you wrote: Maybe a pair of those 6 cavity mobile duplexers with the 5 MHz split can be configured as 6 notch sections each to reject the opposite frequency. and then combine them with a T to the antenna. Even though they're notch duplexers, each side has a very weak pass response, just enough so that you can't use the low pass side as a high pass. As a result, trying to use one as a 6-section notch filter by putting all the notches on the same frequency using the TX RX ports as input output won't work, as it would have several dB of loss @ 5 MHz offset, even more @ ~1.2 MHz. Another alternative to a full size 2 meter duplexer would be a dual isolator following by a pass cavity on each TX, then T the cans together using the correct phase-critical lengths of coax. Might be cheaper if you happen to have an inexpensive source for 4 VHF isolators. Bob NO6B
Re: [Repeater-Builder] Transmitter Combiner
I could live with 3dB of loss which is about what I would expect per leg. I've ran the UHF notch duplexers back wards and they have ran ok, but the insertion loss does go up like 1-2dB. If you want to get picky you would have to modify each set so that the coupling loops and coaxes are the same, but probably wouldn't be worth the effort. That are modify the coaxes so the low frequency goes through all 6 low notch cavities and the same for the high. The isolator system is the way to go for repeaters, but not desireable for simplex radios. You'd have to split out the seperate RX and TX lines and then have a multicoupler and filter for the receivers and another antenna. On Thu, Jul 15, 2010 at 6:10 PM, n...@no6b.com wrote: At 7/15/2010 13:53, you wrote: Maybe a pair of those 6 cavity mobile duplexers with the 5 MHz split can be configured as 6 notch sections each to reject the opposite frequency. and then combine them with a T to the antenna. Even though they're notch duplexers, each side has a very weak pass response, just enough so that you can't use the low pass side as a high pass. As a result, trying to use one as a 6-section notch filter by putting all the notches on the same frequency using the TX RX ports as input output won't work, as it would have several dB of loss @ 5 MHz offset, even more @ ~1.2 MHz. Another alternative to a full size 2 meter duplexer would be a dual isolator following by a pass cavity on each TX, then T the cans together using the correct phase-critical lengths of coax. Might be cheaper if you happen to have an inexpensive source for 4 VHF isolators. Bob NO6B Yahoo! Groups Links
Re: [Repeater-Builder] Transmitter Combiner
DCFluX dcf...@gmail.com wrote: Maybe a pair of those 6 cavity mobile duplexers with the 5 MHz split can be configured as 6 notch sections each to reject the opposite frequency. and then combine them with a T to the antenna. Lossy, but should be cheap, I've seen those go in the $20 range. On Thu, Jul 15, 2010 at 1:49 PM, MCH m...@nb.net wrote: About the only way is via a duplexer. (Cheap? Well... used??? ;- ) Joe M. na4it wrote: Is there a cheap way to combine two txcvrs into one antenna... 144.39 APRS and 145.550 packet? Yahoo! Groups Links
[Repeater-Builder] DB8900 series tower top preamplifier
Does anyone have a spare DB8945 tower top preamplifier module hanging around? Or, does anyone have any diagrams on this preamp module? I think I can repair mine with a diagram or acess to a parts list. Thanks, RIck
[Repeater-Builder] Re: question for commercial radio shops
Nope, wouldn't do it. It violates the rules under which we operate. --- In Repeater-Builder@yahoogroups.com, Nate Duehr n...@... wrote: On Jul 13, 2010, at 6:23 PM, KD5SFA wrote: If a person whom you knew and is involved in a number of church youth camps activities asked you to program FRS frequencies into a 4w UHF HT type accepted for LMR would you do so ? It would only be for extended range at camp. My gut is to tell him no... Sorry for the slightly off topic postI just need a little extra thought on the subject... Bad thing is the person asking is the captain of my Volunteer FD. 73, Jon No. I'd kindly explain that no matter how small, they would be putting me, my livelihood, and my business at risk of large fines by a Federal agency, and an easily-searchable violation stored online forever as long as I ran my business, that would become my reputation. -- Nate Duehr, WY0X n...@...
[Repeater-Builder] TKR-820 CTCSS/DCS EEPROM
Ok, I'm playing around with my Kenwood TKR-820 a bit. I've found the instructions for HEX editing the channel and ctcss information after reading it from the EEPROM, and they work great. But there's nothing about DCS. I'm wiing to try and decipher how to get the DCS, but I need a look at the information from a chip that contains DCS information. Since I don't have a real programmer I can't change mine and then look at it. So if anyone has a TKR-820 with DCS in it and a EEPROM reader, it would be greatly appreciated if you are wiling to read the chip with PonyProg2000 (http://www.lancos.com/ppwin95.html) and send me a copy. Thanks, Jeff, KB1SPH / WQEX694
Re: [Repeater-Builder] TKR-820 CTCSS/DCS EEPROM
It appears my L button doesn't work half the time, guess I need to take my keyboard apart and clean it. Jeff On 7/16/2010, kb1sph kb1...@wqex694.info wrote: Ok, I'm playing around with my Kenwood TKR-820 a bit. I've found the instructions for HEX editing the channel and ctcss information after reading it from the EEPROM, and they work great. But there's nothing about DCS. I'm wiing to try and decipher how to get the DCS, but I need a look at the information from a chip that contains DCS information. Since I don't have a real programmer I can't change mine and then look at it. So if anyone has a TKR-820 with DCS in it and a EEPROM reader, it would be greatly appreciated if you are wiling to read the chip with PonyProg2000 (http://www.lancos.com/ppwin95.html) and send me a copy. Thanks, Jeff, KB1SPH / WQEX694 Yahoo! Groups Links
RE: [Repeater-Builder] TKR-820 CTCSS/DCS EEPROM
Jeff, I suspect you may be headed for disappointment. CTCSS (PL) and CDCSS (DPL) are handled differently within the radio. While the former is audio, albeit sub-audible, the latter requires a DC connection to the modulator in order to create the DCS signal at a 134.4 Hz rate. In other words the CTCSS hardware will not work for CDCSS. Perhaps some readers who have TKR-820 stations with CDCSS capability can advise you about the modifications and/or optional modules that are necessary to handle DCS. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of kb1...@wqex694.info Sent: Thursday, July 15, 2010 7:03 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] TKR-820 CTCSS/DCS EEPROM Ok, I'm playing around with my Kenwood TKR-820 a bit. I've found the instructions for HEX editing the channel and ctcss information after reading it from the EEPROM, and they work great. But there's nothing about DCS. I'm wiing to try and decipher how to get the DCS, but I need a look at the information from a chip that contains DCS information. Since I don't have a real programmer I can't change mine and then look at it. So if anyone has a TKR-820 with DCS in it and a EEPROM reader, it would be greatly appreciated if you are wiling to read the chip with PonyProg2000 (http://www.lancos.com/ppwin95.html) and send me a copy. Thanks, Jeff, KB1SPH / WQEX694
[Repeater-Builder] Invar Rods
Does anyone need INVAR rods? I salvaged some from a TV audio / video RF combiner. 73 Glenn WB4UIV
Re: [Repeater-Builder] TKR-820 CTCSS/DCS EEPROM
Ok, let me make it a little more clear for anybody that might not have understood the first message. (No offense intended Eric) A Kenwood TKR-820 repeater has CTCSS and DCS encoding and decoding built into it with an on-board controller. The configuration is stored in a EEPROM chip, 93C46 (or 93LC46). What I'm trying to do is figure out how to change the configuration without using the expensive Kenwood programmers, unfortunately this one isn't just a simple cable. I have a serial EEPROM reader/writer, so I used instructions found in the repeater-builder archives at http://www.mail-archive.com/repeater-builder@yahoogroups.com/msg63481.html to modify the configuration for the ctcss tones. Unfortunately, the person who wrote that article didn't figure out the DCS configuration. So I'm hoping that someone who has a TKR-820 already configured for DCS has the ability to read the EEPROM chip as well and send me a copy. I hope that clears it up a little more. Jeff, KB1SPH / WQEX694 -- From: Eric Lemmon wb6...@verizon.net Sent: Thursday, July 15, 2010 10:24 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] TKR-820 CTCSS/DCS EEPROM Jeff, I suspect you may be headed for disappointment. CTCSS (PL) and CDCSS (DPL) are handled differently within the radio. While the former is audio, albeit sub-audible, the latter requires a DC connection to the modulator in order to create the DCS signal at a 134.4 Hz rate. In other words the CTCSS hardware will not work for CDCSS. Perhaps some readers who have TKR-820 stations with CDCSS capability can advise you about the modifications and/or optional modules that are necessary to handle DCS. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of kb1...@wqex694.info Sent: Thursday, July 15, 2010 7:03 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] TKR-820 CTCSS/DCS EEPROM Ok, I'm playing around with my Kenwood TKR-820 a bit. I've found the instructions for HEX editing the channel and ctcss information after reading it from the EEPROM, and they work great. But there's nothing about DCS. I'm wiing to try and decipher how to get the DCS, but I need a look at the information from a chip that contains DCS information. Since I don't have a real programmer I can't change mine and then look at it. So if anyone has a TKR-820 with DCS in it and a EEPROM reader, it would be greatly appreciated if you are wiling to read the chip with PonyProg2000 (http://www.lancos.com/ppwin95.html) and send me a copy. Thanks, Jeff, KB1SPH / WQEX694 Yahoo! Groups Links
Re: [Repeater-Builder] TKR-820 CTCSS/DCS EEPROM
Hey, I didn't need DCS at the time. Looks like TX code is at 80-81 Hex, and RX code is 82-83 81 EC = D023N 81 E6 = D026N What DCS code do you need? On Thu, Jul 15, 2010 at 8:46 PM, Jeff Lavoie - KB1SPH/WQEX694 kb1...@wqex694.info wrote: Ok, let me make it a little more clear for anybody that might not have understood the first message. (No offense intended Eric) A Kenwood TKR-820 repeater has CTCSS and DCS encoding and decoding built into it with an on-board controller. The configuration is stored in a EEPROM chip, 93C46 (or 93LC46). What I'm trying to do is figure out how to change the configuration without using the expensive Kenwood programmers, unfortunately this one isn't just a simple cable. I have a serial EEPROM reader/writer, so I used instructions found in the repeater-builder archives at http://www.mail-archive.com/repeater-builder@yahoogroups.com/msg63481.html to modify the configuration for the ctcss tones. Unfortunately, the person who wrote that article didn't figure out the DCS configuration. So I'm hoping that someone who has a TKR-820 already configured for DCS has the ability to read the EEPROM chip as well and send me a copy. I hope that clears it up a little more. Jeff, KB1SPH / WQEX694 -- From: Eric Lemmon wb6...@verizon.net Sent: Thursday, July 15, 2010 10:24 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] TKR-820 CTCSS/DCS EEPROM Jeff, I suspect you may be headed for disappointment. CTCSS (PL) and CDCSS (DPL) are handled differently within the radio. While the former is audio, albeit sub-audible, the latter requires a DC connection to the modulator in order to create the DCS signal at a 134.4 Hz rate. In other words the CTCSS hardware will not work for CDCSS. Perhaps some readers who have TKR-820 stations with CDCSS capability can advise you about the modifications and/or optional modules that are necessary to handle DCS. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of kb1...@wqex694.info Sent: Thursday, July 15, 2010 7:03 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] TKR-820 CTCSS/DCS EEPROM Ok, I'm playing around with my Kenwood TKR-820 a bit. I've found the instructions for HEX editing the channel and ctcss information after reading it from the EEPROM, and they work great. But there's nothing about DCS. I'm wiing to try and decipher how to get the DCS, but I need a look at the information from a chip that contains DCS information. Since I don't have a real programmer I can't change mine and then look at it. So if anyone has a TKR-820 with DCS in it and a EEPROM reader, it would be greatly appreciated if you are wiling to read the chip with PonyProg2000 (http://www.lancos.com/ppwin95.html) and send me a copy. Thanks, Jeff, KB1SPH / WQEX694 Yahoo! Groups Links Yahoo! Groups Links
Re: [Repeater-Builder] TKR-820 CTCSS/DCS EEPROM
Scratch that 00-01 is TX, 02-03 is RX On Thu, Jul 15, 2010 at 9:35 PM, DCFluX dcf...@gmail.com wrote: Hey, I didn't need DCS at the time. Looks like TX code is at 80-81 Hex, and RX code is 82-83 81 EC = D023N 81 E6 = D026N What DCS code do you need? On Thu, Jul 15, 2010 at 8:46 PM, Jeff Lavoie - KB1SPH/WQEX694 kb1...@wqex694.info wrote: Ok, let me make it a little more clear for anybody that might not have understood the first message. (No offense intended Eric) A Kenwood TKR-820 repeater has CTCSS and DCS encoding and decoding built into it with an on-board controller. The configuration is stored in a EEPROM chip, 93C46 (or 93LC46). What I'm trying to do is figure out how to change the configuration without using the expensive Kenwood programmers, unfortunately this one isn't just a simple cable. I have a serial EEPROM reader/writer, so I used instructions found in the repeater-builder archives at http://www.mail-archive.com/repeater-builder@yahoogroups.com/msg63481.html to modify the configuration for the ctcss tones. Unfortunately, the person who wrote that article didn't figure out the DCS configuration. So I'm hoping that someone who has a TKR-820 already configured for DCS has the ability to read the EEPROM chip as well and send me a copy. I hope that clears it up a little more. Jeff, KB1SPH / WQEX694 -- From: Eric Lemmon wb6...@verizon.net Sent: Thursday, July 15, 2010 10:24 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] TKR-820 CTCSS/DCS EEPROM Jeff, I suspect you may be headed for disappointment. CTCSS (PL) and CDCSS (DPL) are handled differently within the radio. While the former is audio, albeit sub-audible, the latter requires a DC connection to the modulator in order to create the DCS signal at a 134.4 Hz rate. In other words the CTCSS hardware will not work for CDCSS. Perhaps some readers who have TKR-820 stations with CDCSS capability can advise you about the modifications and/or optional modules that are necessary to handle DCS. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of kb1...@wqex694.info Sent: Thursday, July 15, 2010 7:03 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] TKR-820 CTCSS/DCS EEPROM Ok, I'm playing around with my Kenwood TKR-820 a bit. I've found the instructions for HEX editing the channel and ctcss information after reading it from the EEPROM, and they work great. But there's nothing about DCS. I'm wiing to try and decipher how to get the DCS, but I need a look at the information from a chip that contains DCS information. Since I don't have a real programmer I can't change mine and then look at it. So if anyone has a TKR-820 with DCS in it and a EEPROM reader, it would be greatly appreciated if you are wiling to read the chip with PonyProg2000 (http://www.lancos.com/ppwin95.html) and send me a copy. Thanks, Jeff, KB1SPH / WQEX694 Yahoo! Groups Links Yahoo! Groups Links
[Repeater-Builder] Re: TKR-820 CTCSS/DCS EEPROM
Hi Jeff, I have a few DCS TKR-720/820 Eprom files in my collection. Email me direct if you haven't got it figured out by the weekend. I have a KPT-50, the software and the ponyprog setup you have so I can help as time allows. With that software and an inexpensive EEprom Programmer easily found on Ebay... you can do a lot of neat stuff... like the mentioned. cheers, skipp025 at yahoo.com --- In Repeater-Builder@yahoogroups.com, Jeff Lavoie - KB1SPH/WQEX694 kb1...@... wrote: Ok, let me make it a little more clear for anybody that might not have understood the first message. (No offense intended Eric) A Kenwood TKR-820 repeater has CTCSS and DCS encoding and decoding built into it with an on-board controller. The configuration is stored in a EEPROM chip, 93C46 (or 93LC46). What I'm trying to do is figure out how to change the configuration without using the expensive Kenwood programmers, unfortunately this one isn't just a simple cable. I have a serial EEPROM reader/writer, so I used instructions found in the repeater-builder archives at http://www.mail-archive.com/repeater-builder@yahoogroups.com/msg63481.html to modify the configuration for the ctcss tones. Unfortunately, the person who wrote that article didn't figure out the DCS configuration. So I'm hoping that someone who has a TKR-820 already configured for DCS has the ability to read the EEPROM chip as well and send me a copy. I hope that clears it up a little more. Jeff, KB1SPH / WQEX694 -- From: Eric Lemmon wb6...@... Sent: Thursday, July 15, 2010 10:24 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] TKR-820 CTCSS/DCS EEPROM Jeff, I suspect you may be headed for disappointment. CTCSS (PL) and CDCSS (DPL) are handled differently within the radio. While the former is audio, albeit sub-audible, the latter requires a DC connection to the modulator in order to create the DCS signal at a 134.4 Hz rate. In other words the CTCSS hardware will not work for CDCSS. Perhaps some readers who have TKR-820 stations with CDCSS capability can advise you about the modifications and/or optional modules that are necessary to handle DCS. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of kb1...@... Sent: Thursday, July 15, 2010 7:03 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] TKR-820 CTCSS/DCS EEPROM Ok, I'm playing around with my Kenwood TKR-820 a bit. I've found the instructions for HEX editing the channel and ctcss information after reading it from the EEPROM, and they work great. But there's nothing about DCS. I'm wiing to try and decipher how to get the DCS, but I need a look at the information from a chip that contains DCS information. Since I don't have a real programmer I can't change mine and then look at it. So if anyone has a TKR-820 with DCS in it and a EEPROM reader, it would be greatly appreciated if you are wiling to read the chip with PonyProg2000 (http://www.lancos.com/ppwin95.html) and send me a copy. Thanks, Jeff, KB1SPH / WQEX694 Yahoo! Groups Links
RE: [Repeater-Builder] Invar Rods
Glen , I know some will think If I am to dumb to know what they are , Then I do not need them . But I still would like to know in layman terms what is a INVAR Rodif I was guessing Maybe something that goes in a duplexer Thanks Don KA9QJG From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Glenn Little WB4UIV Sent: Thursday, July 15, 2010 9:31 PM To: Repeater Group Subject: [Repeater-Builder] Invar Rods Does anyone need INVAR rods? I salvaged some from a TV audio / video RF combiner. 73 Glenn WB4UIV
Re: [Repeater-Builder] Invar Rods
Invar is a special material. It is special that is has very low tempreture expansion characteristics. When used for the tuning rod in a duplexer it will compensate the expansion in the copper center conductor so that the frequency of the cavity does not drift. I calculated a 6m cavity that uses steel tuning rods would drift 50kHz over 30-130 degrees farenheit. With invar this would be more like 1-2 kHz over the same temperature range. How long are the rods? I could go for some that are in the 5 1/2 foot range. On Thu, Jul 15, 2010 at 10:05 PM, ka9qjg ka9...@wowway.com wrote: Glen , I know some will think If I “am to dumb to know what they are , Then I do not need them . But I still would like to know in layman terms what is a INVAR Rodif I was guessing Maybe something that goes in a duplexer Thanks Don KA9QJG *From:* Repeater-Builder@yahoogroups.com [mailto: repeater-buil...@yahoogroups.com] *On Behalf Of *Glenn Little WB4UIV *Sent:* Thursday, July 15, 2010 9:31 PM *To:* Repeater Group *Subject:* [Repeater-Builder] Invar Rods Does anyone need INVAR rods? I salvaged some from a TV audio / video RF combiner. 73 Glenn WB4UIV
Re: [Repeater-Builder] TKR-820 CTCSS/DCS EEPROM
Well I'm not particularly needing any one code at the moment, just trying to figure out how exactly to figure out the hex codes. Thanks for the great tutorial on the rest. It makes it easy to change the config when I want instead of having to call someone with a programmer. Now if I can find a connector that goes into the socket on top of the display board I could just wire up a connection to the ICSP connector on my board and make it easier for the frequencies. This information should be put on the repeater-builder web site if it's not already. I couldn't find it, but maybe I didn't look close enough. Jeff, KB1SPH / WQEX694 -- From: DCFluX dcf...@gmail.com Sent: Friday, July 16, 2010 12:35 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] TKR-820 CTCSS/DCS EEPROM Hey, I didn't need DCS at the time. Looks like TX code is at 80-81 Hex, and RX code is 82-83 81 EC = D023N 81 E6 = D026N What DCS code do you need? On Thu, Jul 15, 2010 at 8:46 PM, Jeff Lavoie - KB1SPH/WQEX694 kb1...@wqex694.info wrote: Ok, let me make it a little more clear for anybody that might not have understood the first message. (No offense intended Eric) A Kenwood TKR-820 repeater has CTCSS and DCS encoding and decoding built into it with an on-board controller. The configuration is stored in a EEPROM chip, 93C46 (or 93LC46). What I'm trying to do is figure out how to change the configuration without using the expensive Kenwood programmers, unfortunately this one isn't just a simple cable. I have a serial EEPROM reader/writer, so I used instructions found in the repeater-builder archives at http://www.mail-archive.com/repeater-builder@yahoogroups.com/msg63481.html to modify the configuration for the ctcss tones. Unfortunately, the person who wrote that article didn't figure out the DCS configuration. So I'm hoping that someone who has a TKR-820 already configured for DCS has the ability to read the EEPROM chip as well and send me a copy. I hope that clears it up a little more. Jeff, KB1SPH / WQEX694 -- From: Eric Lemmon wb6...@verizon.net Sent: Thursday, July 15, 2010 10:24 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] TKR-820 CTCSS/DCS EEPROM Jeff, I suspect you may be headed for disappointment. CTCSS (PL) and CDCSS (DPL) are handled differently within the radio. While the former is audio, albeit sub-audible, the latter requires a DC connection to the modulator in order to create the DCS signal at a 134.4 Hz rate. In other words the CTCSS hardware will not work for CDCSS. Perhaps some readers who have TKR-820 stations with CDCSS capability can advise you about the modifications and/or optional modules that are necessary to handle DCS. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of kb1...@wqex694.info Sent: Thursday, July 15, 2010 7:03 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] TKR-820 CTCSS/DCS EEPROM Ok, I'm playing around with my Kenwood TKR-820 a bit. I've found the instructions for HEX editing the channel and ctcss information after reading it from the EEPROM, and they work great. But there's nothing about DCS. I'm wiing to try and decipher how to get the DCS, but I need a look at the information from a chip that contains DCS information. Since I don't have a real programmer I can't change mine and then look at it. So if anyone has a TKR-820 with DCS in it and a EEPROM reader, it would be greatly appreciated if you are wiling to read the chip with PonyProg2000 (http://www.lancos.com/ppwin95.html) and send me a copy. Thanks, Jeff, KB1SPH / WQEX694 Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links
Re: [Repeater-Builder] Re: TKR-820 CTCSS/DCS EEPROM
Skipp, sent you a message, but sometimes messages from my domain are put in spam on yahoo. I still haven't figured out why, so if you don't get it in your inbox, check the spam folder. Jeff -- From: skipp025 skipp...@yahoo.com Sent: Friday, July 16, 2010 12:51 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: TKR-820 CTCSS/DCS EEPROM Hi Jeff, I have a few DCS TKR-720/820 Eprom files in my collection. Email me direct if you haven't got it figured out by the weekend. I have a KPT-50, the software and the ponyprog setup you have so I can help as time allows. With that software and an inexpensive EEprom Programmer easily found on Ebay... you can do a lot of neat stuff... like the mentioned. cheers, skipp025 at yahoo.com --- In Repeater-Builder@yahoogroups.com, Jeff Lavoie - KB1SPH/WQEX694 kb1...@... wrote: Ok, let me make it a little more clear for anybody that might not have understood the first message. (No offense intended Eric) A Kenwood TKR-820 repeater has CTCSS and DCS encoding and decoding built into it with an on-board controller. The configuration is stored in a EEPROM chip, 93C46 (or 93LC46). What I'm trying to do is figure out how to change the configuration without using the expensive Kenwood programmers, unfortunately this one isn't just a simple cable. I have a serial EEPROM reader/writer, so I used instructions found in the repeater-builder archives at http://www.mail-archive.com/repeater-builder@yahoogroups.com/msg63481.html to modify the configuration for the ctcss tones. Unfortunately, the person who wrote that article didn't figure out the DCS configuration. So I'm hoping that someone who has a TKR-820 already configured for DCS has the ability to read the EEPROM chip as well and send me a copy. I hope that clears it up a little more. Jeff, KB1SPH / WQEX694 -- From: Eric Lemmon wb6...@... Sent: Thursday, July 15, 2010 10:24 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] TKR-820 CTCSS/DCS EEPROM Jeff, I suspect you may be headed for disappointment. CTCSS (PL) and CDCSS (DPL) are handled differently within the radio. While the former is audio, albeit sub-audible, the latter requires a DC connection to the modulator in order to create the DCS signal at a 134.4 Hz rate. In other words the CTCSS hardware will not work for CDCSS. Perhaps some readers who have TKR-820 stations with CDCSS capability can advise you about the modifications and/or optional modules that are necessary to handle DCS. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of kb1...@... Sent: Thursday, July 15, 2010 7:03 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] TKR-820 CTCSS/DCS EEPROM Ok, I'm playing around with my Kenwood TKR-820 a bit. I've found the instructions for HEX editing the channel and ctcss information after reading it from the EEPROM, and they work great. But there's nothing about DCS. I'm wiing to try and decipher how to get the DCS, but I need a look at the information from a chip that contains DCS information. Since I don't have a real programmer I can't change mine and then look at it. So if anyone has a TKR-820 with DCS in it and a EEPROM reader, it would be greatly appreciated if you are wiling to read the chip with PonyProg2000 (http://www.lancos.com/ppwin95.html) and send me a copy. Thanks, Jeff, KB1SPH / WQEX694 Yahoo! Groups Links Yahoo! Groups Links
