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10 Dec 2003RF output when switch from CW-USB/AM for FT-221 (FT-225)
12 Nov 2000FT-221 PB-1455 (PLL UNIT) SCHEMATIC
22 Aug 1998Yaesu FT-221R repeater modification
19 Jul 1998Keying modifications for Yaesu FT-221
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Date Author Subject
1. 20 Jun 2014 Michele Di Masi Jr. (1) Hooking up a frequency counter.
2. 11 Dec 2002 Ray Saenz (0) Yaesu FT-221/221R Repeater Modification.i View article

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