[Elecraft] Err TXF

[G4ILO]

Bill W4ZV wrote:
> 
> FYI, I tried using the 1.0k 8-pole on CW (before this option was locked
> out by firmware) and I got a *worse* key click report than when using the
> 2.7k.  So there are good reasons behind Elecraft's lockouts.
> 
Perhaps so, but it creates a problem if my filter is actually a bit narrower
than 2.7KHz. There was actually "2.39KHz" written on my filter PCB, as well
as the sticker specifying the offset. I don't know if this is the actual
bandwidth that was measured when my filter was tested. The manual doesn't
say anything about this. But it's a good guess that's what it is.

If I understand what Lyle told me by email yesterday correctly, if the
filter is narrower than the value set in the configuration then adjusting it
for preferred audio on one sideband may result in too shrill audio on the
other. Altering just the offset will make the good sideband worse in order
to make the other one better, which is exactly what I found. In order to
make both sidebands good, I need to be able to alter the other variable,
which is the bandwidth. Only I can't, because of this lockout.

-----
Julian, G4ILO K2 s/n: 392  K3 s/n: 222
G4ILO's Shack: www.g4ilo.com
Zerobeat Ham Forums: www.zerobeat.net/smf
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