SO2R has a different purpose than a KRX3. In SO2R, the two radios are normally connected to separate antennas and operating on different bands. It's a contesting technique that allows you to listen on one band while transmitting on another band.

If you wanted to use a second transceiver to listen to pileups while working DX, you would need external switching to disconnect the antenna from the second transceiver whenever the first transceiver was transmitting, in order to avoid damaging its receiver, rather like the old days of separate transmitters and receivers.

So, if your intended use is DXing, I would say that the KRX3 would be a better investment than a K3/10. If your eventual goal is full-bore pedal-to-the-metal contesting, a second transceiver, amplifier and tower might be in your future, and the KRX3 might not be so important to you.

73,
Rich VE3KI


NK4I wrote:

I'm wondering how many people go straight to SO2R?  I have a P3 and have
been thinking about adding a KRX3 but wonder if a better investment is a
K3/10.

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