AH-4 HF 50 MHz AUTOMATIC ANTENNA TUNER

・Automatic antenna tuner for a 7 m (23 ft) or longer wire antenna.

• Frequency Coverage: 3.5 MHz to 54 MHz (with a long wire antenna, 7 m; 23 ft or longer), 7 MHz to 54 MHz (with an optional AH-2b)
• Weight: 1.2 kg; 2.65 lb
• Dimensions (projections not included): 172(W)×71(H)×230(D) mm; 6.77(W)×2.8(H)×9.06(D) in
• Maximum input power: 120W PEP
• Input impedance: 50 Ω
• Power supply requirement: 13.8 V DC±15% (negative ground)
• Current drain: Less than 1 A
• Auto tuning accuracy: VSWR 2.0:1 or less
• Tuning time: Approximately 2 to 3 seconds (Maximum 15 seconds)
• Number of memory channels: 45
• Note: For a long wire antenna

• AH-4 Instructions Manual