No antenna is perfect in every respect. Losses, non-optimal space and many other circumstances prevent you from always being able to use an ideally matched antenna. Most of the time the resonance is not quite right, with the result that the standing wave ratio which the transmitter 'sees' is not very good. And so the transmitter can't transmit all its power to the antenna, it is converted into heat loss. An antenna tuner solves this problem by matching the impedance of the antenna to the impedance of the transmitter. You must compensate for capacitive or inductive mismatch, depending on how the antenna is constructed.
A distinction is made between manually and automatically tuned antenna tuners.
Manually tuned matchers are those that are equipped with variable capacitors and coils, which are then changed by hand to compensate for the reactive components of the matching. Manual tuners have the advantage to be tuned very precisely and to be designed for high power. The disadvantage is the time-consuming, manual operation.
Automatic antenna tuners tune automatically on demand, mostly with a relay network different fixed capacitors and inductors are switched through. The more such components a tuner has, the more precisely it can achieve precise matching. Most built-in antenna tuners also work according to this method. However, there is usually not much space available for large capacitors and coils. Therefore external tuners are usually superior - they have a larger impedance range in which mismatching can be compensated. Important for automatic tuners is the possibility to connect the tuner directly to the transceiver with a cable that fits exactly. This usually makes operation much easier.
Other distinguishing features of antenna tuners are weather resistance, the type of antenna connection (wire or coax), and the circuit design (L-element, Pi-element) etc. WiMo will be happy to help you find the right tuner for you!
Manual and automatic antenna tuners
Hardly any shortwave station can do without it - the antenna tuner. A device with many names: Tuner, Matchbox, Matching Network... but it does the same thing: it provides the best possible power matching between transmitter and antenna.
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MFJ-994BRT antenna tuner asym./longwire 1,8-30MHz, weatherpr., 600WMFJ Automatic Outdoor Tuner 600W.
In stock, shipped in 1 to 2 days
€657.00incl. VAT, plus shipping €552.10 -
mAT-50 tuner system 1.6-54 MHz f. Yaesu, Icom, Kenwood2-part tuner system for long wire antennas, max. 120 W
Please select a product
As low as: €559.00incl. VAT, plus shipping €469.75 -
MFJ-993BRT antenna tuner asym./longw. 1,8-30MHz, weatherpr., 300WMFJ Automatic Outdoor Tuner 300W.
In stock, shipped in 1 to 2 days
€502.50incl. VAT, plus shipping €422.27 -
MAT-Y200 Automatic Tuner for YaesuAutomatic antenna tuner 1.8 - 54 MHz, max. 200 W
In stock, shipped in 1 to 2 days
€310.90incl. VAT, plus shipping €261.26 -
ACOM 03AT antenna tuner 1,8-16MHz symm., max 2500WACOM-03AT Automatic antenna tuner
Ordered only on customer request, down payment required, delivery time approx. at 60 days
€18,999.00incl. VAT, plus shipping €15,965.55 -
FlexRadio Tuner Genius Antenna tunerFully automatic antenna tuner up to 2000 W power, works with all common transceivers, 4.5" LC screen, 2 versions (SO2R, 1x3).
Please select a product
As low as: €2,769.00incl. VAT, plus shipping €2,326.89 -
Yaesu FC-40 antenna tuner unsymm., weatherproof, for FT-857, FT-897Automatic Tuner for end fed and long wire antennas
Available from 15.12.2023
€267.80incl. VAT, plus shipping €225.04 -
Palstar AT-4K Manual antenna tuner unsymm. (symm. w. opt. Balun) 1.8-29.2MHz, max 3000WVersatile, high-performance manual tuner with PWR/SWR meter
In stock, shipped in 1 to 2 days
€1,775.00incl. VAT, plus shipping €1,491.60 -
TARGETuner automatic control unit for Tarheel antennasFully automatic controller, offers highest user comfort for operating motor-tuned Tarheel antennas. Get more time for your QSO's!
Available from 31.03.2024
€307.90incl. VAT, plus shipping €258.74 -
MFJ 941E Manual antenna tuner asym./sym., 300WMFJ- 941E - worldwide bestseller.
In stock, shipped in 1 to 2 days
€319.90incl. VAT, plus shipping €268.82
