How do you detect imbalance in open wire or ladder line? By measuring and comparing each feedline wire current -- your feedline is balanced if the currents are equal.

The MFJ-835 Balanced Line RF Ammeter is two identical calibrated RF ammeters using an MFJ Cross-Needle meter.

Feedline currents are simultaneously displayed on separate calibrated scales in three ranges (.1, 1, 3 Amperes)

Balance is clearly revealed on MFJ's exclusive BalancedBar -- when currents are balanced, the dual needles cross in the center -- no matter the actual current.

If the needles cross within the vertical BalancedBar the balance is within 10%. If not, you know which line is unbalanced and by how much.

Equal currents in the feeder wires minimize feedline radiation and reduces pattern distortion, RFI, TVI, and wasted power.

Imbalance is due to feedline not being perpendicular to antenna, if one side runs close to metal or is shorter or closer to ground.

The MFJ835 helps you solve all your unbalanced problems.

Heavy duty 5-way binding posts for feedlines. Use 12Vdc or 110Vac with MFJ-1312D. 6"W x 3-1/2"H x 4-1/2"D