MFJ-904H – Travel Tuner 150W, Balun


This small tuner handles full 150 watts! It covers 80-10 meters, has a tuner bypass switch, and tunes nearly anything!


MFJ brings you the world’s smallest full power 150 watts 80-10 meter Antenna Tuner – with SWR/Wattmeter! Extra wide matching range lets you tune nearly any antenna. Built with real air variable capacitors (600 Volt, 322 pF) and three stacked powder iron toroids to handle real power — not just QRP. The bypass switch lets you bypass the tuner when you don’t need it. You can use nearly any transceiver at full power with nearly any coax-fed or random wire antenna for portable, home, or mobile operation.

Operate anywhere, anytime with a quick easy set-up! Tune out SWR on your mobile whip from inside your car. Operate in your apartment with a wall-to-wall antenna or from a motel room with a wire dropped from a window or from a mountain top with a wire over a tree limb. Great for DXpeditions or field day. Be prepared for emergencies. The MFJ-904 is so small and handy, that you’ll rely on it wherever you go!

It’s easy to pack away in your briefcase, suitcase, backpack, glove compartment, or desk drawer. It’s tiny enough to slide into your back hip pocket! The MFJ-904 includes a cross-needle SWR/Wattmeter that shows SWR, forward, and reflected power all at a glance. The push button selects forward/reflected power in 300/60 and 30/6 watt ranges.

  • Type: Manual travel and metering tuner 
  • Frequency: 3.5-30 MHz
  • Power: 150 watts wire, coax and balanced feed
  • Meter: Cross needle 
  • Size: 180 (W) x 60 (H) x 80 (D) mm 
  • Weight: 650 g 
  • Balun: 4:1
  • Sockets: SO239

Additional information

Weight 0.9 kg