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" <[email protected]>
Sent: Friday, July 16, 2010 12:51 AM
To: <[email protected]>
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 [email protected], "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/[email protected]/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: <[email protected]>
>> 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: [email protected]
>> > [mailto:[email protected]] On Behalf Of kb1...@...
>> > Sent: Thursday, July 15, 2010 7:03 PM
>> > To: [email protected]
>> > 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
>
>
>

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