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 > > > > > > >
