How to extend TX range in TH-F7 (Japan version?)

[Dawid Szymanski]

Hi,

I was trying to extend TX range of my TH-F7, but all available mods
have failed. The only change that was noticed was that VFO A had RX
and TX locked to amateur bands...

Currently my TH-F7 has no D702, D703, D704 or R701, all are "open".

On back of my TH-F7 I can read:

"made in Singapore"
"KN309"
something Japanese here and - "JARD"
"50300061"

(there are some more things yet but I guess they are not "non standard"

I wish I could unlock TX range in it, any clue?


------------------------------------

[Robert Elsinga]

Post by Dawid Szymanski
I was trying to extend TX range of my TH-F7, but all available mods
have failed. The only change that was noticed was that VFO A had RX
and TX locked to amateur bands...
Currently my TH-F7 has no D702, D703, D704 or R701, all are "open".

On my modified TH-F7E (euopean model) only D703 is present.

[Mike]

http://www.ham.dmz.ro/kenwood/th-f7-e-modifications-extended-transmit.php

Post by Dawid Szymanski
I was trying to extend TX range of my TH-F7, but all available mods
have failed. The only change that was noticed was that VFO A had RX
and TX locked to amateur bands...
Currently my TH-F7 has no D702, D703, D704 or R701, all are "open".

On my modified TH-F7E (euopean model) only D703 is present.

[Dawid Szymanski]

Post by Robert Elsinga

Post by Dawid Szymanski
Currently my TH-F7 has no D702, D703, D704 or R701, all are "open".

On my modified TH-F7E (euopean model) only D703 is present.

Thanks Robert, but I also tried this mod.
Japanese version seem to have another firmware or even CPU.

Anyone have other ideas?



------------------------------------

[s***@public.gmane.org]

I think the best way to extend the TX range is to add a better antenna or?a j-pole.?

Steve B. KC2RUA