The QRM canceller is inserted into the feeder of the antenna from the trx without any other modifications to the radio. The box has a built-in PTT control to keep the canceller connected during transmission. However, an additional auxiliary receiving antenna is required, such as a 2m antenna or only a few meters of wires in a shed.
The two antennas receive unwanted signals, resulting in different phases. The QRM canceller now allows adjustment of the phase angle and amplification to cancel the unwanted signal before it reaches the receiver front end It is based on a completely innovative concept and cannot be compared with the normal silencer performance.
Material:Aluminum alloy
colour:black
Package Contents:
1 * Host
1 * dotted line
1 * SMA head whip antenna
1 * DC2.1/5.5 power cord
Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.