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.


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!

 

Items 1-10 of 99

  1. LDG Z-817 Antenna Tuner 20W
    LDG Z-817 Antenna Tuner 20W

    LDG QRP Antenna Tuner 20W, with cable for ACC port, four internal AA batteries.

    Brand
    LDG
    Tuner type
    Automatic Tuning

    In stock, shipped in 3 to 4 days.

    €149.00
    incl. VAT plus shipping €125.21
    SKU Z-817
  2. antenna tuner unsymm. 1,6-30MHz, 150W
    antenna tuner unsymm. 1,6-30MHz, 150W

    Automatic antenna tuner

    Brand
    CG-Antenna
    Tuner type
    Automatic Tuning

    In stock, shipped in 3 to 4 days.

    €249.00
    incl. VAT plus shipping €209.24
    SKU CG-3000
  3. LDG Z-11PRO II Antenna Tuner 125 W
    LDG Z-11PRO II Antenna Tuner 125 W

    Z-11PRO II 125 W

    Brand
    LDG
    Tuner type
    Automatic Tuning

    Not in stock, back in 15 days.

    €209.00
    incl. VAT plus shipping €175.63
    SKU Z-11PRO-II
  4. MFJ-998RT antenna tuner asym./longw. 1,8-30MHz, weatherpr., 1500W
    MFJ-998RT antenna tuner asym./longw. 1,8-30MHz, weatherpr., 1500W

    MFJ Automatic Outdoor Tuner 1500W.

    Brand
    MFJ
    Tuner type
    Automatic Tuning

    In stock, shipped in 3 to 4 days.

    €861.00
    incl. VAT plus shipping €723.53
    SKU MFJ-998RT
  5. ACOM antenna tuner 1,8-30/50-54MHz unsymm., max 1200W
    ACOM antenna tuner 1,8-30/50-54MHz unsymm., max 1200W

    Acom Remote Antenna Tuner 04AT

    Brand
    Acom
    Tuner type
    Automatic Tuning

    Not in stock, back on: 12.02.2022

    €1,295.00
    incl. VAT plus shipping €1,088.24
    SKU ACOM-04AT
  6. MFJ-993B Automatic Antenna Tuner 300W
    MFJ-993B Automatic Antenna Tuner 300W

    MFJ-993B automatic antenna tuner.

    Brand
    MFJ
    Tuner type
    Automatic Tuning

    Not in stock, back in 50 days.

    €340.00
    incl. VAT plus shipping €285.71
    SKU MFJ-993B
  7. Palstar AT-2K Manual antenna tuner unsymm. (symm. w. opt. Balun), 1,8-54MHz, 2000W
    Palstar AT-2K Manual antenna tuner unsymm. (symm. w. opt. Balun), 1,8-54MHz, 2000W

    Palstar 2kW tuner with roller inductor, 2 variocaps

    Brand
    Palstar
    Tuner type
    Manual tuning

    Not in stock, back in 50 days.

    €689.00
    incl. VAT plus shipping €578.99
    SKU AT-2K
  8. MFJ-998 antenna tuner asym. 1,8-30MHz, 1500W
    MFJ-998 antenna tuner asym. 1,8-30MHz, 1500W

    MFJ-998 Automatic Antenna tuner 1500W.

    Brand
    MFJ
    Tuner type
    Automatic Tuning

    In stock, shipped in 3 to 4 days.

    €859.00
    incl. VAT plus shipping €721.85
    SKU MFJ-998
  9. MFJ-962D Manual antenna tuner asym./sym. 1,8-30MHz, 1500W
    MFJ-962D Manual antenna tuner asym./sym. 1,8-30MHz, 1500W

    MFJ-962D 1500 Watt Tuner with roller coa.

    Brand
    MFJ
    Tuner type
    Manual tuning

    Not in stock, back in 50 days.

    €409.00
    incl. VAT plus shipping €343.70
    SKU MFJ-962D
  10. MFJ-949E Manual antenna tuner asym./sym., 300W
    MFJ-949E Manual antenna tuner asym./sym., 300W

    MFJ 300W tuner with dummy load.

    Brand
    MFJ
    Tuner type
    Manual tuning

    Not in stock, back in 50 days.

    €229.00
    incl. VAT plus shipping €192.44
    SKU MFJ-949E

Items 1-10 of 99