As long as Eric has requested an end to this thread, perhaps we should move it to the Yahoo group. It is unfortunate that certain topics on this reflector are like being a long-tail cat in a room full of rocking chairs.
As a final comment; I haven't used ESSB, but the option was one of the things that influenced my decision to buy a K3. It adds to it's capability.
Rich, n0ce
----- Original Message -----
From: Matthew Zilmer
To:
[hidden email]
Sent: Monday, January 28, 2013 12:30 PM
Subject: [Elecraft] K3 ESSB question - data modes
In MARS, we use a mil data mode called M110A which requires 3 KHz of TX and RX audio bandwidth to achieve a low error rate at the higher bitrates (2400 and 4800). I've been trying it using DATA A, but error rates on the RX side (for non-K3 RXs) is still higher than acceptable. I'm assuming that the K3's TX and RX audio characteristics would be the same when using 3.0 KHz in ESSB. Since we have at least two Navy-Marine Corps MARS members in SCA with K3s, I was going to test RX error rate with each RX set up on ESSB 3.0, while my K3 was set up the same way for TX.
Another way to assess usability is to run the N-GEN into the K3 RX while in ESSB 3.0. The output audio spectrum should show a clean audio band. Has anyone in this group done this already? If so, could I get a copy of the results?
73 and Thanks,
Matt Zilmer, W6NIA/NNN0UET SCA
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