2018年10月30日 · You should run coax from the back of the QRM-180 to the noise antenna, but pretty much anything will work. RG-59, RG-174, or whatever, it doesn’t need or want to be …

nect interfaces, TRU-SQS ®, TRU-QRM™, and TRU-QDS , provide highly efficient and repeatable high power solutions without the need for added hand tools to securely mate. In …

The signal is fed back to the shack via 20 Metres of RG58 A/U coax. The same coax provides a +12 Volts DC supply from the shack to power the loop amplifier.

In summary the most convincing actions for local QRM reduction are: QRM minimising: perfect balancing and maximum distance to noise sources; one QRM source: nulling or noise …

Coax T-stuk Test 2: is the X-Phase working correctly? • Connect the main antenna to BOTH the main antenna input and the Auxiliary antenna input via a coaxial T-adaptor. • Switch on the …

1995年2月16日 · Coax has two key properties: 1. The voltage between the inner conductor and the shield depends only on the state of the electromagnetic field within the shield. 2. The …

2023年4月18日 · How to use the diversity receive mode with the SDRPlay RSPduo and two antennas to eliminate man made noise (QRM).

2020年1月23日 · This kit will help you reduce QRM from your transmitter, as well as reducing or even eliminating local QRM affecting your receiver. These will be particularly effective is you …

QRM ELIMINATOR / NOISE CANCELLING UNIT. 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 …

2009年2月14日 · I think there was a thread, somewhere on here, about making a simple loop antenna from coaxial cable. I'd been plagued by harsh QRM and electrical buzz at night time, …