Modifications for the Yaesu FT-890
YAESU FT890/AT (Firmware ROM version 1.21) TX 1,5 to 30 MHz mod
Try it at your own risk. 73's and good luck.
Verify your ROM version with the following sequence: hold A/B + A=B knobs
while powering up your tranceiver. You'll see the display test followed by
your ROM version. It's possible that the mod work for other versions but I
haven't tried it !
Disconnect FT890 from all connections.
Open tranceiver like explained in your "OPERATING MANUAL".
Locate on the "CONTROL UNIT" jumper point JW 3001 and close it with solder.
Close tranceiver back and reconnect power.
Push PROC, AGC-F, IPO, ATT while power ON.
Now the display shows two digits of numbers and tree of letters (i.e 13 OFF)
Rotate main knob and set the display to "02 ON". Now press the PROC button.
Power OFF and then back ON. It's all!
Now every time you want, you can change the programation, but you will
allway lose the memories.
Other settings than "02 ON" are of no interest. This one give you 100 w
and automatic antenna tuning between 1,5 and 30 mhz.
Another modification for the FT-890 Frequency
This is the MOD to open the FT-890 to make it capable of transmit from
1.5Mhz to 30MHz without restrictions!.
First, open both transceiver covers (follow the USER MANUAL instructions).
Then locate the JW3001 jumper on the DISPLAY UNIT board (just rear the
Close the JW3001 jumper. Then power ON the transceiver with the following
keys pressed: PROC, AGC-F, IPO, ATT.
On display you will see two numbers and OFF. Rotate the frequency knob
until you see ON. Then press PROC and turn OFF the transceiver.
It is not necessary to clear the jumper.
This counter shows the number of hits since the
9th February 2000
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