Subject: STANDARD RADIO C-628A 440 / 1200 MHz Radio Modifications

	(Many thanks to JI1AZI, Kazumi Nakagawa, for translation assistance)

	Receive Expansion Mod:

	Expands RX coverage to:

	320 - 480 MHZ
	820 - 980 MHz
	1220 - 1400 MHz


 	 1.  Reset Radio by pressing the small indentation on RHS of radio.
	 2.  Press "450" key
	 3.  Press Funct and 0 (Set)
	 4.  Press Funct and D (Ent)
	 5.  Press the PTT switch
	 6.  Press "1200" key
	 7.  Press Funct and L (Lamp)
	 8.  Press Funct and 0 (Set)
	 9.  Press Funct and B (Code)
	10.  Press Funct and L (Lamp)
	11.  Press Funct and 3 (PO)
	12.  Press the PTT switch

	This completes the RX expansion mod. To select the frequency
	ranges within a band,  press Funct and 0, then Funct and 3.
	The 440 MHZ band will alternate with the 320 MHz band. On the
	1200 MHz band, the ranges will cycle 1200, 1300, 800, 900 then
	back to 1200 MHz.

	Now, for the TX expansion mod. This should be done after the RX
	mod has been performed.

	 1.  Press "1200" key
	 2.  Press Funct and B (Code)
	 3.  Press 5 (Save)
	 4.  Press 2 (Dual)
	 5.  Press 0 (Set)
	 6.  Press "450" key
	 7.  Press Funct and B (Code)
	 8.  Turn Rotary Channel Selector Knob to Ch. #3
	 9.  Press 6 (Step)
	10.  Press 2 (Dual)
	11.  Press 0 (Set)
	12.  Press Funct and 4 (FL/DM)
	13.  Press Funct and "450" key
	14.  Press Funct and 0 (Set)
	15.  Press Funct and D (Ent)
	16.  Press the PTT switch

	When properly completed, this will expand the TX coverage to
	400 - 474 MHz and 1220 - 1340 MHz.


	I tried this on a C628A, and it works as shown.

	Ed Brown     KB1MZ