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Icom AH-3, Instructions Manual

The Icom AH-3 is a versatile automatic antenna tuner designed for Icom radios. Ensure smooth and efficient radio communication with our comprehensive user manual available for free download at 88.208.23.73:8080. Get easy-to-follow instructions and valuable insights on maximizing the functionality of your AH-3 tuner.

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Summary of Contents for AH-3

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Page 5: ...5 BUFFER LATCHES RELAY DRIVERS PWR PWR z PHASE SWR1 SWR2 SWR3 CP11 BUFFER CONTROL CPU VOLTAGE REGULATORS 8 V 13 8 V KEY START RL2 RF IN TUNE DETECTOR SWR ATTENUATOR PHASE IMPEDANCE FWD POWER BUFFER DETECTOR DETECTOR CP12 CP13 CP14 CP15 CP17 J6 J5 Q7 Q6 Q5 DATA ANTENNA L6 D12 D13 IC 16 IC17 IC8 AH 3 BLOCK DIAGRAM NORMAL 5 V RL1 TUNE GATE CPU C NETWORK L NETWORK ...

Page 6: ...tn SWR det RF IN NOTE RL12 and RL20 are always in opposite states ABSORBER 4T 6T 5T 7T 10T 18T 31T 30T 58T 1nF 1nF 1nF 470 pF 220 pF R170 R169 47K C165 L18 C154 L6 C155 L14 L12 L13 L11 L10 L9 L8 RL20 L7 ANTENNA C153 C152 C151 C157 C156 C159 C158 C162 C160 C161 RL13 RL15 RL14 RL19 RL18 RL16 RL17 RL12 C167 C166 RL21 RL10 RL11 RL9 RL8 RL6 RL7 RL5 RL4 RL3 ...

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