From dgra@qmgate.ECi-esyst.COM Thu May  4 18:52:25 EDT 1995
Article: 12253 of rec.radio.amateur.equipment
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From: dgra@qmgate.ECi-esyst.COM (Dana Rodakis)
Newsgroups: rec.radio.amateur.equipment
Subject: FT-51R Mars/CAP Mod
Date: 4 May 95 20:35:28 GMT
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Message-ID: <n1412516761.69709@qmgate>
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Originator: daemon@ucsd.edu

YAESU FT-51R

Expanded Transmit 140-174 MHz, 420-470 MHz

MARS & CAP MODIFICATION

	This information is authorized for distribution 
only to individuals who are members of the U.S.
Military Affiliate Radio System, Civil Air Patrol,
or other government agency services specifically 
permitted by the FCC to use non-Type-Accepted 
equipment such as that utilized in the Amateur 
Radio Service.  Release of this information to 
individuals not bearing a license in the MARS, CAP,
or other such government service is not authorized 
by Yaesu U.S.A.

	*	Remove Antenna and Battery

	*	Remove (6) black screws in rear plastic cover 
   plate (where the battery would normally fit)

	*	Remove the (1) small black screw in the battery
   slide switch (see figure 1 below for screw 
   locations)

	*	Loosen (but don't remove) the (4) black screws 
   on the upper back of rear case and slightly 
   separate the rear radio case.

	*	Remove the "L" type plastic cover

		CAUTION: Watch out for the delicate ribbon cable

	*	Locate and unsolder jumper pad #6 (see Figure 2 
   below for jumper locations) (Pads 1,7 should now 
   be jumpered) (Stock, Pads 1,6,7 only)

	*	Reinstall the "L" type plastic cover

	*	Tighten the (4) case screws on rear case

	*	Re-install the (6) black screws in rear plastic 
   cover plate.

	*	Re-install the (1) small black screw with the 
   battery slide switch

	*	Now attach the antenna and battery

	*	Turn off Radio...  Press and hold both UP & Down 
   Arrows Keys (right side) while turning on the 
   Radio

	*	Modification now complete!


(Figure 1 not rendered; my ASCII art skills aren't 
that good)


Figure 2:  Jumper locations.  For European tone burst, 
add solder to jumper 4.


	_________________________________________________
	|
	|      __________
	|      |        |    1 o
	|      |        |          o 2
	|      |        |    3 o
	|      |  CPU   |          o 4
	|      |        |    5 o
	|      |        |          o 6
	|      |________|    7 o
	|
	|
	|