The Radio Information Board

This from Kenwood Dealer tools page: Please call Tech Support if you need assistance with the current firmware revisions, or if you are looking for a specific firmware revision not listed. Tech Support: 1-800-752-0987 I suspect you put a newer firmware than the hardware could handle. The newest firm...

SP tune allows you to enter any freq,but you must have the low split 730 and it is unlocking.
You will have to adjust the VCO to go higher and you will lose some of the low freqs.
mod

Try east coast transistor for the manual. The software is dos and a usb port is not dos controlled. It may work in a win98 dos window,but I would not chance it.
mod

You are using the correct software. There are no tricks needed to program,as the software/cable put the radio in program mode. Make sure you have selected the correct com port.
mod

Kenwood does offer a Usb to serial adapter.
mod

On the main deck/larger of the set!
mod

It is plug and play and easy to set up. You DO need to short W106 on the control unit(under the small cover) to increase audio through the remote cable.
mod

If you want a BNC jack for the radio it is Kenwood part #E04-0197-05 $21.13
mod

I looked in the book.....put the radio with the front facing you and the antenna socket to your right There are 2 adjustments, VR1 on the right and VR2 to the left of that one and closer to you. turn them both max clockwise for 45 watts,VR1 turned max counterclockwise is said to give 5 watts,so that...

It is a manual adjustment of the power contron in the PA.
mod

Yes,136-174 coverage.
mod

Excellent radio! Plenty of performance and features,and darn near waterproof with all those rubber gaskets.
mod

Well,I only have the book for the KGP-2A and here is a quote: Serial (COM) port The KGP-2A/2B communicates to an external PC through the ACC1 connector on the rear panel. The KGP-2A/2B has an internal, bi-directional RS-232C/TTL voltage level converter (IC6) that converters the signal levels between...

Standard rate for the TK-250/350
mod

I think at this point you will need a service manual....
mod