Similar to MFJ-945, but with the addition of 4:1 balun for symmetrial antennas, but without bypass switch. Very compact size 15 x 18 x 6.5 cm. Max 300W power selectable range 30 instrument/PEP 300W. Internally selectable 6W for QRP operations. Cross-needle instrument lighting...
The MFJ-904H it's like the MFJ-902 but has an instrument cross-needle SWR/Wattmeter and a balun 4:1 for balanced lines and random antennas. The tool displays the SWR, the direct and reflected power instantly. A select button power over the power range 150/60 and 15/6 watts. Dimensions in inches x 2...
The solution if you have little ground in the shack.
Turn your current system into an almost perfect ground system. Even if no mass outlet is available! Useful for the BCI / TVI or with 'hot' chassis. Useful when your shack has a very long connection to the earth.
The MFJ-931 is installed be..
300 Watts PEP, 300 Watt dummy load NOT integrated.Cross needle instrument show forward and reflected power.Diemensions: 27 x 9 x 18 cmPEP power measurement
6 position the antenna selector
Integrated balun 4:1 parallel wire feeds..
Tuner completes the gap between 300W and large ones up to 3KW.Grants from 1.8 to 30MHz, analogue readout Cross coil inductance antenna switch 4:1 balun in 6 positions, for symmetric antennas. Size 25 x 25 x 10 cm.
Start now with the usual 100W, then increase your power with a linear amplifier but ..
The MFJ-974HB is a real "Balanced Tuner" for symmetrical power lines that offers an excellent balance current. Tuning range 12 to 2000 Ω, frequency range from 1.8 to 54MHz of course incl. all the WARC bands. Max power 300W PEP SSB, 150W CW. Harmony is easy with three elements selecta..