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#Icom ic r6 poor signal serial numbers#
1 Icom IC-765 Notes Don Stalkowski, VE3HUR DecemVersion 1.08Ģ Contents 1 Introduction Warnings General Information Description Relation to the IC Filters Power Supply Trimmer Capacitors Serial Numbers and Dates Icom Reflector Icom IC-765 Modifications W2ISB PBT mod Modification for improved T/R Switching Mod to prevent antenna switch unit failure Improved monitor volume Extended TX Mod Better AM Audio QRP Mod Selectable SSB Filters Using the 250 Hz second IF CW filter in RTTY mode New Version of the N6MZ Sidetone Tracking Modification Full QSK Keying Improvement Key Clicks PIN Diode Mod Common Problems Antenna Tuner Hunts or Chatters Empirical Technique Alternate Technique Problems covered in the Icom service FAQ VOX Oscillates W8AEF s Problems and Fixes Carrier Oscillator Trimmer Adjustment Corrections Icom 765 PLL Trimmer Repair A Case History Replacing the BFO Trimmers Whoosh Noise when Tuning Paint Cleaning the Display Window Fixing Intermittent Displayģ 5 Operating Hints AM Operating Suggestions Comments on the IC-765 on AM PSK31: CW Receive and LSB Transmit CW Keyer Speed Sixty Metre Operation Microphones Connection to an MC-60A Microphone Using a computer headset Sources of Online Information 47 8 Change Log 48 2Ĥ Copyright c 2002, 2003, 2004, 2005 Don Stalkowski.