Modifications for the Yaesu FT-900
FT-900 Frequency Expansion Information
Amateur Products Division
Date: 24 August 1994
Original Freq. Range: 160-10M (Ham)
New Freq. Range: 1.8-29.99MHx TX
Important Notice Regarding Disclosure Restrictions
This information is autorized for distribution only to individuals who
are members of the U.S. Military Affiliate Radio System, Civil Air
Patrol, or other government services specifically permitted by the
FCC to use non-type accepted equipment such as that
Remove the two screws from the top cover, and the two screws from the
top rear area of the rear panel, so as to allow the top cover/heat
sink to be slid slightly toward the rear. The objective is to be
able to see into the CNTL-1 Unit, which is the i
Locate test points TP3001 and TP3002 on the CNTL Unit. They are located near the top edge of the board, in the center from left to right. With the transceiver still turned off, connect a jumper (alligator clip is ok) between these 2 test points.
Hold in the following 4 buttons: [PROC], [ATT], [IPO], and [NB]. While holding them in, turn the transceiver on. Release the buttons.
The display will indicate OFF. Turn the VFO dial slowly until the display reads ON.
Press the [PROC] button to write the new instructions to EEPROM.
Remove the jumper across the test points.
Replace the case screws. Mod is now complete.rea of the rear panel, so as to allow the top cover/heat sink to be slid slightly toward the re
FT-900 Remote improvement
Name is Larry KN4IM@N4CII.#CHS.SC.USA.NA in Charleston, SC. If you are
the proud owner of a new Yaesu FT-900 remoteable mobile and have had teh
pleasure of installing the YSK-1L Remote Cable Assy, I am sure you would
also like to strangle the IDIOT that decided you needed two tiny screws
to attach the cable to the front of the radio main unit. These tiny,
fine threaded, soft brass, typically Japanese screws will soon be
de-threaded, or broken, or LOST! There has got to be a better way.
I just got off the phone with Yaesu's experts in Cerritos and the parts
department. No, there are no parts available, yet, for the FT-900 so I
don't have any part number or price to give you to order it. Just tell
Yaesu parts dept that you want the plastic back they have on order for
KN4IM in South Carolina, he'll know what you want.
What I did was to remove the back of my 900's remote head and see if I
could install this silly connector to the backshell of the remote head.
VOILA! They even gave me the holes to put screws through. The remote
cable end that mates to the radio mounts very nicely to the INSIDE of
this plastic shell so that the shell is BETWEEN the connector and the
radio. You can use small screws/nuts with the nuts pointing out to
give you the clearance you need. This will allow you to QUICKLY dismount
the 900 from the trunk leaving your EXTRA shell (after they deliver it)
PERMANENTLY in the trunk...no screws to break or loose...no tiny phillips
to find...just to go portable or fixed. The empty shell will fit the
mounting pins and click right into the 900's front panel lock because it's
made for it.
I sure hope Yaesu retrofits all the previously sold remote kits with a
neat looking blank panel in which to mount my radio end of the remote
cable instead of having to resort to this method. Maybe they will already
have the radio end moulded into this blank panel for faster installation
and will send me a new cable.....sure they will...73,
Larry KN4IM 14.105 PKT
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