ELAD SWITCH BOX is an automatic T/R switch normally connect the antenna to RX input.

When it senses RF power on RTX (max. 100W), the antenna is connected to RTX input and the antenna input of your receiver is connected to ground to protect tour receiver. Instead of using RF sense to switch antenna, a control line input lets your key/keyer or PTT line switch the antenna. Works on all mode: CW, AM, SSB, FM and digital modes. Individually tested up to VHF.

A complete switch control is available for the audio receiver and transceiver, for MUTE the receiver and monitoring your CW Sidetone or SSB coming from the transceiver MONITOR function.

SWITCH BOX is compatible with any receiver and any HF transceiver or HF transmitter.


Impedance: 50O
Frequency range: DC - 160MHz
Maximum TX power: 100W
RF sense threshold: < 10mW (1.8MHz 30MHz tested)
ON time < 20ms
Release time: < 190ms
Insertion loss: < 0.3dB @ 144MHz (0.2dB typical)
RX isolation: > 38dB @ 144MHz (40dB typical)
Gas discharge protection
Power supply: 13.8V DC 200mA>

This unit is OLD Stock = NEW = Never Used
Supplied incl all origial cables, Documentation and Packing

Price EUR 49,- + Frieght charges
interested ?..... Please send us a email:

Just 2 units left for sale