Re: [Repeater-Builder] Re: Kenwood TKR-820

Wed, 14 Dec 2005 15:18:15 -0800

Pete,
 
That is some damn fine information there.  I only wish I had it last night.  About the only thing that is different in the 820 is the divde radio is .0125 instead of .005

Currently I am using a program called pony prog which the serial interface I am using is similar to the one shown on this website, I will redo the schematic with one that is guarenteed to work though and doesn't need any fancy regulators. Also I am using some Hex editor I found on google, It is like the first link when you type in hex editor.
 
It may be possible to add the missing channel controls and jumper the control chip from repeater to base mode so then the repeater could QSY, not much say 100kHz to allow the duplexer to function but more importantly change PL tones remotely to allow Carrier access or different CTCSS tones. I think the TKR-850 series does this already but that may be a pretty sweet mod for the x20 series.
 
 
On 12/14/05, n2mci <[EMAIL PROTECTED]> wrote:
Matt, if you are editing the EEproms by hand, here's a link
to Mijo S51KQ's TK/R-720 web page.. I helped him with creating
the EEprom (93C46) images.. See:
http://lea.hamradio.si/~s51kq/temp/_projects_/TKR720_modification/

On the TKR/B radios, the file saved by KPG21D contains the data
for the Freq. and CTCSS EEprom.. The 1st half of the file is the
image for the Freq. EEprom and the 2nd half of the KPG21D file
is the Image of the CTCSS EEprom file..

I realize binary file editing to not for everyone, but it's not
as hard as everyone makes it out to be either..

I also want to create a 'EZ-Prog' type exe that will create the
various file images, (TKb/r freq. & CTCSS, TK620/720/820/710/810
mobiles with and without the scan board (TK-x20's only)), from the
file saved by KPG21D..

-73, Pete N2MCI


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