Kenwood: Kenwood TH-F6A Lost Extended Range?

[WirelessMike]

I have a TH-F6A (original owner) that I have dusted it off and discovered it has lost the extended transmit (which I only use for testing equipment). Anyone have any ideas as to why I lost the extended transmit and have any suggestions as to how to regain it?


BTW, I have CHIRP and the original Kenwood MCP-F6F7.exe programming software and they still work, but none of the menus look like they will help. Anyone think that these programs might have cause my issue?

I did the MARS mod when the radio was new. I doubt the diodes and jumper re-installed itself.


I love this radio for the HF RX, extended range, and extra modes (WFM, SSB, ...) and small size. It was also very useful to verify other TX and RX equipment was working (smallest radio I own to do that).


Any help is appreciated.

 

[RFI-EMI-GUY]

I have an ICOM W32A that I removed the diode to activate MARS OOB operation. It worked fine until I bought the RT Systems software. The software disabled the MARS mod. To their credit, RTS sent me a patched version that restored the mod. This was years ago. I suspect CHIRP or the KW software forced the band edge limitations.

 

[krokus]

Does the radio still tune to the freqs you want?

 

[WirelessMike]

Yes. It will receive on all freqs (it was always a wide range RX) not no TX outside US ham bands.

I have not yet tried pulling the battery off for a few days and see if that helps. I will also have to see about a factory reset.

No one else had this happen on a TH-F6A?

 

[WirelessMike]

I left battery off for a few hours. No change.
I did a full factory reset. No change.

Does any know of a way to hex dum the EEprom memory and edit it?

TIA