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
