I am finally able to run multiple diversity receivers side-by-side and compare performance, using my new diversity antenna distribution system.

As you know, I have been using diversity reception for noise cancellation since I bought my Afedri AFE8222x in seven years ago. Soon after, I added the wonderful SDRplay RSPduo in 2020, followed by the ANAN 7000DLE in 2021. Around the same time, I built a two-element wideband loop array. Later, I added a DXE NCC-1 phaser, which lets me do analog beamforming with single channel receivers, like my Perseus.

Over the years, I have used relay-switches and patch-bays to route various antennas to dual channel receivers. These approaches worked well. But, they always limited me to diversity reception on one receiver at a time.

Well friends, those restrictions are now gone. With my new diversity antenna distribution system, I can do diversity reception on up to four diversity receivers side-by-side.

Above, you can see SDRconnect and PowerSDR Thetis running simultaneous with my RSPduo and ANAN radios. In the lower right corner, you can see my antenna switching application which lets me select wideband loops and traditional ham radio antennas to these dual channel receivers.

As you can see, diversity tuning and performance is similar across both radios, with minimal load on the control PC.

Diversity Receivers Side-by-Side is a revelation

If you want to build your own system, I can highly recommend the Active RF Isolation Distributor, 100kHz-150MHz RF Splitter which is available for low cost on Amazon.ca, at least low cost outside the US, hi!

So far, no problems with performance, e.g. noise figure and strong signal performance with this device.

I am having a challenge with some added noise when routing the antennas through the NCC-1 on Medium Wave, however. I will try adding better grounding and see if that helps.