In certain situations you would definitely do better with a second receiver.Suppose you have a CW pileup on a rare station, where the pileup is 25 kHz wide, with many stations (can I say lids?) calling continuously, and the DX station is sending 35 wpm. It is very difficult to use REV or TF-SET to pick out the right spot and pop back to the DX in time. There is a built-in delay in the button, plus your reaction time. You can do it, but you will get more good shots at the DX with a second receiver. And the name of the game in breaking pileups is maximizing the number of calls you make on the right frequency. It takes a little care in setting up the right and left channels, plus some practice, but the two-receiver method is definitely superior. I go even farther and use the two receivers in my K3 for diversity reception, and have another transceiver that I use to listen to the pileup and transmit.

73,
Victor, 4X6GP
Rehovot, Israel
Formerly K2VCO
CWops no. 5
http://www.qsl.net/k2vco/

On 07/11/2023 15:14, Andy Durbin wrote:
That was a head spinning discussion!  No Elecraft transceiver here
but I've been working single RX Split with a TS-590S for as long as I
have owned it.

For the TS-590 the key to working split pileups is the TF-SET key
which swaps TX and RX VFO as long as it is held.  Sounds like
Elecraft does the same with the REV key.  Listen on the DX frequency,
after his CQ or TU press TFSET to listen to the pileup. Spin the dial
to find who is answering with a report, this sets the TX VFO to that
frequency, adjust up or down based on prediction of DX listening
point, release TF-SET and call after next TU.

TF-SET, an SDR based panadapter, and CW Skimmer all help me when
trying to work the big pileups.  With TF-SET held I can click HDSDR
(SDR panadapter) to set the TX VFO. I doubt I would do any better
with a second receiver.

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