The high-performance transverter TR432H with its outstanding specifications is the combined result of a circuit design using state-of-the-art components and of Kuhne Electronic's long experience in microwave transverters.

The TR432H is specially designed for demanding UHF Amateur Radio applications like high performance contest stations, but can be modified for professional use in the 400 MHz frequency range . The receiver path is able to cope with very large interference levels from other transmitters, a situation common to contest sites with other high-power transmitters in the neighborhood. To achieve optimum intermodulation and large-signal performance, the TR432H uses only one PHEMT RF amplifier stage with a noise figure of 0.4 dB and an output intercept point of 30 dBm. A triple resonator helix bandpass filter provides optimum rejection of out-of-band signals and a high-level ring mixer (LO + 17 dBm, 50 mW) with output diplexer converts the input signal to the IF band at 28 MHz. The overall gain in the receiver path was deliberately set to only 10 dB, as even high-performance HF transceivers have still large signal problems at 28 MHz.

For EME and DX work or for long antenna feed cables we recommend a preamplifier like the KUHNE Electronic LNA432 or the SSB Electronic LNA435 Low Noise Amplifier mounted directly at the antenna feed point, using separate receive and transmit cables. Here You need only one additional high-quality coaxial relay, as the TR432H provides a separate receiver input (N-Connector) and sequencing.

- Aluminium case with a oversize Heatsink
- Includes DC-Power and control cable
- Spurious and harmonic wave suppression better 60 dBc
- Side band noise figure of the oscillators max. -132 dBc/Hz @ 10 kHz

- Option 01: Band 2 such as OSCAR freq.'s
- Option 02: TX IF input power -20 dBm / 10…200 µW
- Option 03: RX IF Amplifier +10dB