Software Mod for JST-245 / 145

The following procedure will allow you to transmit on an extended range (1.6-54 MHz for JST-245).
Remember, however, that on the 245 the internal antenna tuner works only in the range 0-30 MHz.

Disclaimer

I don't assume any responsibility about the following procedure, neither for any consequent damage nor problem.
However, I have experimented the following procedure on my personal JST-245DXG and I had no problems at all.
I found this "mod" as a photocopy among the pages of my JST-245 user manual. I don't know the source, but the procedure works good.

  1. Rig in the "VFO A" status. Power it off.
  2. While holding down the 50 MHz button, power on the rig. Keep on holding down the 50 MHz button until you hear a triple sound ("Pi-Pi-Pi") for 2 times.
  3. Wait for about 30 seconds.
  4. You're OK!

For the JST-145 the procedure is the same, even if it hasn't the 50 MHz band.