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Diplexer

Many antennas, whether for the car or at home, are resonant on several amateur radio bands simultaneously. That means you could 'in principle' operate two radios at the same time on the antenna. This is exactly what a so-called diplexer makes possible, a crossover which splits a common signal into several sub-bands. The filtering and attenuation outside the desired band range is so good that it is easy to listen to one band while transmitting on another band. There are also crossovers for combined broadcast / amateur radio antennas. They enable reception of a radio station with the car radio and at the same time operation with a radio set.

By the way, a diplexer can also be operated 'the other way round' without any problems. This means that you can branch out from one radio to several antennas, each of which is optimized for exactly one band range. This way, cables can often be better used, for example if you are only allowed to lay one cable in the riser shaft.

 

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  1. Triplexer MX-3000 2m/70cm/23cm, N
    Triplexer MX-3000 2m/70cm/23cm, N

    MX-3000N Triplexer 2m/70cm/23cm w. cable

    In stock, shipped in 1 to 2 days

    €88.40
    incl. VAT, plus shipping €74.29
    SKU 22001.N
  3. 4O3A HFC-4500 - Triplexer / Combiner
    4O3A HFC-4500 - Triplexer / Combiner

    Triplexer for 10, 15 and 20m, designed for high power up to 4500 Watt. Allows operation of a multi-band antenna on several radios at the same time, also at the transmitting end, when using suitable bandpass filters at the same time.

    In stock, shipped in 1 to 2 days

    As low as: €625.00
    incl. VAT, plus shipping €525.21
  4. 4O3A QPXC-8 Triplexer Extender
    4O3A QPXC-8 Triplexer Extender

    Extension for 4O3A HFC-4500 triplexer/combiner, for an additional band in the frequency range 1.8-7.3 MHz.

    In stock, shipped in 1 to 2 days

    View accessories
    As low as: €849.00
    incl. VAT, plus shipping €713.45

Items 1-10 of 30

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FAQ

What is an antenna splitter?
An antenna splitter is a device that allows a single antenna signal to be split between multiple receivers or multiple transmitters to be operated via a single antenna. In amateur radio, it is used, for example, to monitor different bands at the same time or to operate several radio devices on a common antenna system without having to install a separate antenna for each device. It is particularly important that the splitter is designed in such a way that it transmits the signals without significant losses and effectively isolates the different frequencies or devices from each other in order to minimize interference and mutual interference.
Rodrigo "Rod" Herrera
What does a diplexer do?
A diplexer is an electronic component that can combine or separate two frequency ranges without causing mutual interference. The values ​​of possible interference are measured by the "Isolation in decibels (dB)" value. The diplexer allows two different signals to be sent or received over a common antenna by separating or combining the signals depending on their frequency. Among radio amateurs, the diplexer is often used to separate the signals of VHF and UHF so that a radio amateur can work on both bands with a single antenna. For SWL stations, this product allows listening to signals from different bands with a single antenna and two receivers operating simultaneously.
Rodrigo "Rod" Herrera
How does an antenna splitter work?
An antenna splitter is a device that allows multiple radios to operate on a single antenna or, conversely, to use a single radio with multiple antennas by splitting or combining the signals. It uses filter circuits to ensure that the correct frequency bands are assigned to the appropriate devices or antennas. The switch isolates the different frequencies so that the connected devices do not interfere with each other. When used with multiple transmitters, the switch also protects the non-transmitting receivers from the strong signals of the active transmitters.
Rodrigo "Rod" Herrera
Rodrigo "Rod" Herrera

WiMo Antennen-Experte

Your Expert for “Diplexer“
Rodrigo
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Diplexers
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