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Viking_4740
New member
Username: Viking_4740

Post Number: 7
Registered: 4-2007
Posted on Sunday, June 10, 2007 - 9:17 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Hello all,
I have a Yaesu FT-900 that I want to open up to TX on 11 meters. I remember reading somewhere that to do this you have to jumper a couple of test points and then turn the radio on while holding in some buttons or some such thing. I can not remember where I read this. Does anyone know how to make an FT-900 talk on 11 meters and if so could you walk me through it. I don't do a lot of my own radio work.
Thanks.
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Patzerozero
Senior Member
Username: Patzerozero

Post Number: 3786
Registered: 7-2004


Posted on Sunday, June 10, 2007 - 2:13 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

1.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
2.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.
3.Hold in the following 4 buttons: [PROC], [ATT], [IPO], and [NB]. While holding them in, turn the transceiver on. Release the buttons.
4.The display will indicate OFF. Turn the VFO dial slowly until the display reads ON.
5.Press the [PROC] button to write the new instructions to EEPROM.
6.Remove the jumper across the test points.
7.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 rear


hope this helps Viking!
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Viking_4740
New member
Username: Viking_4740

Post Number: 8
Registered: 4-2007
Posted on Monday, June 11, 2007 - 12:52 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

That is what I was talking about.
OK Pat, I'll give it a try.
Thanks
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Hotrod509
New member
Username: Hotrod509

Post Number: 1
Registered: 1-2021
Posted on Monday, January 18, 2021 - 3:53 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Did that mod work on the FT-900?

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