[TenTec] Eagle and Zero Beating

[Jim Brown]

On Thu,7/23/2015 8:25 AM, Barry N1EU wrote:
> Another issue is that it's more likely that guys are running dsp brick wall
> narrow filtering today than in years past and they might need you to be on
> their frequency to hear you.

I don't think it has anything to do with DSP or analog. I nearly always 
used narrow crystal filters for CW in my Omni V+, TS850, Elecraft K2, 
and FT1000MP. I think it comes down to two things. First, failure of the 
operator to learn to use his radio. RTFM! Second, when contesting, it's 
good practice to call a bit off frequency. When there are multiple 
callers, many of them zero beat, what the CQing station hears can be 
close to a steady carrier, making it hard for him to copy anyone. And, 
if you're the only one a bit off, you'll make the contact.

What I find really dumb is a guy with a lousy antenna or running QRP to 
call off frequency when there's no one else calling. What happens is 
that I need to screw the IF down real tight to pull his weak signal out 
of the mud, so if he's far enough off frequency my filter rejects him. 
Often someone is WAY off frequency, I'll ignore him hoping that he'll 
get the message.

73, Jim K9YC