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FC-40 External Automatic Antenna Tuner
Yaesu FC-40 Automatic-Matching 200-Memory Antenna Tuner

The FC-40 is a micro-processor controlled antenna impedance matching network designed to provide all-amateur band transmitting capability with many of Yaesu's Transceivers, such as the FT-950, FT-450, FT-897 and the FT-857. This tuner is to be used with an end-fed random wire or long whip antenna.

 The FC-40 is a microprocessor-controlled antenna impedance matching network designed for use with the FT-950, and all versions (original and “D”) of the FT-450, FT-857, and FT-897 HF/VHF/UHF Transceivers. The FC-40 makes use of control circuitry inside the transceiver, allowing the operator to monitor and control operation of the FC-40, which mounts near the antenna feedpoint. Fully waterproof, the FC-40 may be mounted outdoors in exposed locations, and will handle a 100 Watts of transmitter power.

The FC-40 is designed for operation on 7 ~ 54 MHz, when using an 8’ whip like the YAESU YA-007, or on 1.8 ~ 54 MHz when used with a random-length wire longer than 66’. Matching time is typically five seconds or less, and the required drive power is 4 ~ 60 Watts. The FC-40 sports a whopping 200 match-setting-point memories, for instant recall of the tuning settings

Specifications FC-40
Operating Frequency Range 1.6 to 54 MHz with 20+m end-fed wire
  7 to 54 MHz with YA-007 HF 2.5m Mobile Whip Ae.
Input Impedance 50Ω
Maximum Input Power 100W (3 minutes MAXIMUM continuous TX)
Matched SWR 2.0:1 or less (if antenna is not near a multiple of λ/2)
Tune-up Power 4 - 60W
Tune-up Time 8 seconds maximum
Impedance Matching Memories 200 channels
Power Supply 13.8 VDC ±15% (supplied from transceiver via control cable)
Case Size (W x H x D, mm) 228 x 175 x 55
Weight (approx, kg) 1.2
  • FC-40 Auto Antenna Tuner
  • Control Cable, 5m
  • Co-ax Cable, 5m
  • Sealing tape, 50cm
  • Ferrite Core
  • U-Bolt Kit
  • Machine Screws, Nuts & Washers Set
  • Installation Instructions
  • Warranty Registration Card
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