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  Kenwood Field Programming

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Author Topic:   Kenwood Field Programming
digitron
New Reader

Posts: 3
From: Imperial Beach, CA
Registered: Jan 2005

posted January 17, 2005 09:55 AM     Click Here to See the Profile for digitron   Click Here to Email digitron     Edit/Delete Message   Reply w/Quote
Although this is my first post, I have read through the posts in search of my questions for numerous hours. I am planning on purchasing a Kenwood TK-860 or 880 because they are known to be good radios that are capable of field/front panel programming. Unfortunately I have not been able to nail down 'for sure' which models are capable, definativly. Contradictory, some state that the 880 is computer programmed only while others say deleting/removing diodes/resistors or installing jumpers will adapt the radio. The abililty to program in the field is cruicial and most importantly a safety issue for my current situation and so, I ask for your help.

Mainly, before I buy I will need to know that the specific radio I buy will be able to accomplish field programming. From what i've read, I am pretty confident that the TK-860G will...but, I have only been able to find the "K" version for sale : What is the difference?! I would rather purchase a TK-880 but, still researching it's ability to do what I need.

I am not fearful of damaging the radio during modification, I have six years of component level maintenance and repair on electronic systems. Does anyone have contacts that are experienced in this? Directions, schematics, diagrams or websites?

Email direct if desired.

WQBY488

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Eddie
Regular Reader

Posts: 209
From: Calif.
Registered: Oct 2001

posted January 21, 2005 08:08 PM     Click Here to See the Profile for Eddie     Edit/Delete Message   Reply w/Quote
If you can get a plain *non-G* TK-860 or 860H, then I know for sure it can be front panel programmable. The plain 860 should also be less expensive than the *-G* version. Get the 450-470 MHz version (TK-860-1), as there are some TK-860-3 470-512 MHz units out there for sale that mistakenly get purchased for GMRS and 70 cm amateur use.

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UglyFish
Regular Reader

Posts: 122
From: CA, USA
Registered: Dec 2004

posted January 22, 2005 12:26 PM     Click Here to See the Profile for UglyFish     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by Eddie:
If you can get a plain *non-G* TK-860 or 860H, then I know for sure it can be front panel programmable. The plain 860 should also be less expensive than the *-G* version. Get the 450-470 MHz version (TK-860-1), as there are some TK-860-3 470-512 MHz units out there for sale that mistakenly get purchased for GMRS and 70 cm amateur use.

There is also a "high" powered version TK-860H-1 that's ok.

(Currently trying to put my hands on a tk-862 for a Winlink/Telpac installation)

When you're searching the net, keep in mind that the programming information for the VHF & UHF model of the same radio is very often identical (except for freq range of course).

www.mods.dk has instructions for field programming of a TK-760 (VHF version of the 860) that might work.

UglyFish

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Lou Campagna
Regular Reader

Posts: 21
From: Philadelphia Metro
Registered: Jan 2003

posted January 30, 2005 05:48 PM     Click Here to See the Profile for Lou Campagna   Click Here to Email Lou Campagna     Edit/Delete Message   Reply w/Quote
Yes, you are correct! The Kenwood TK-760/860 is/are capable of field/front panel programming. I'm not sure whether the TK-780/880 models can be modified. Although the newer versions of the 760/860 now have a suffix "G", these radios are completely different. No correlation between the older 860 and the newer 860G models.

You'll need to perform a two-step operation.

First, a physical modification by placing a zero ohm jumper must be added in position R492. This location can be found on the PC board located behind the LCD screen. Be careful not to cause a solder bridge across any other components.

Second, using the programming software you must activate the "Dealer/Tuning Mode" to "ON". If the latter is not done, the front panel programming cannot be activated.

Keep in mind that only the basic programming features are available. Frequencies TX/RX, CTCSS/DPL Encode/decode, RF Power level Hi/Lo, Add/Delete Scan List and wide/narrow bandwidth selection. Lots of other technical stuff can only be performed through the software.

To access the radio in "Program Mode" you'll need to hold down the "A" button while powering on the radio. The display ought to read, "PrOG" then "SEL". Press "MON" key and CH1 should be displayed.

It has been a few years since I've done this mod. I created a "cheat sheet" to help me walk through the programming sequence. Contact me directly and I'll see if I can find this information and send it out to you.

Good Luck!

------------------
Lou Campagna
N3TMA
WQBC432

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digitron
New Reader

Posts: 3
From: Imperial Beach, CA
Registered: Jan 2005

posted February 26, 2005 09:46 PM     Click Here to See the Profile for digitron   Click Here to Email digitron     Edit/Delete Message   Reply w/Quote
Okay, with my detective work complete here is the final say on those TK-880's. The service manual for a TK-880 and TK-880H is the same to include serial numbers greater than 30200001.

To enable:
Hardware Side, (as per the manual), "Delete R614 in the TX-RX unit (B/2)." This is located behind the front display and behind that circuit board. The resistor has [ brackets ] around it to identify itself. Delete means, by any means necessary (exacto knife and steady hand) pop the component out. It will come out with slight pressure if the edges are scored and its flicked from your knife's edge.

Software, the radio MUST be in conventional mode. Under KPG49D FPU's Optional settings... Mode... Enable "Self programming". Be sure to write to radio.

To initiate self programming mode : Press and hold the [D] button for at least two seconds while you turn the unit on.

I have a TK-880-1 and it was successfully setup for self programming via the instructions above.

Respond with any questions.

Alex

GMRS WQBY488
HAM KG6YFX

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NJTack
Regular Reader

Posts: 303
From: NJ
Registered: Apr 2004

posted February 28, 2005 02:07 PM     Click Here to See the Profile for NJTack   Click Here to Email NJTack     Edit/Delete Message   Reply w/Quote
I own a TK-880 and I have to say thanks! Ive been without the simple ability to change ctcss tones many times and missed out on talking with other GMRS people (who apparently never check to see if the channel is active) On a few occasions Ive heard people in convoys asking one another for directions, and heard directions i knew were wrong, but couldnt help without the lap top and Prog. cables.

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WA4VBC
Regular Reader

Posts: 131
From: New Bern, NC, USA
Registered: May 2004

posted March 05, 2005 07:54 AM     Click Here to See the Profile for WA4VBC     Edit/Delete Message   Reply w/Quote
How can I get a copy of the instructions for programming the TK-880 from the front panel, not the mods, but how to program after the mod is done. Thanks.

------------------
WA4VBC
KAE5442
Eastern NC

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digitron
New Reader

Posts: 3
From: Imperial Beach, CA
Registered: Jan 2005

posted March 05, 2005 11:06 AM     Click Here to See the Profile for digitron   Click Here to Email digitron     Edit/Delete Message   Reply w/Quote
The front panel programming is a little tricky with the buttons available. Hope this helps, it is straight from the service manual.

Enter Self Prog Mode: Hold [D] while you power on the radio. Will display "SELF PROG"

Channel Setting Mode:

Pressing the MON while "SELF PROG" is displayed will change to channel setting mode.

Pressing C to select a setup item, then press GRP UP/DOWN to change the selection.
By pressing B, the displayed information is stored in the memory, and the next item appears. By pressing C, the displayed information is not stored in memory, and the next item appears.

Press MON to return to the original display SELF PROG.

--Channel selection : CH or GRP
--RX Freq RXF : D switches freq on/off : A changes the step value between 5K, 6.25K, 7.5K 1M.
--RX Signaling RXS : D switches between off, QT and DQT : A switches between 1 step and standard : SCN switches between DQT normal and invert.
--TX Frequency TXF : Same as RXF
--TX signaling TXS : Same as RXS

Function Setting Mode

While in SELF PROG, press D to change to function setting mode.

Same as above to navigate : C to select, GRP UP/DWN to change selection, B to store and move on, C to cancel and move on, D to return to SELF PROG.

I have flow helpful flow charts and a tad bit of more information but, this is the jist.

Alex

WQBY488
KG6YFX

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