[OKDXA] RTTY Elmer?

[Coy Day]

Charlie,

You might check out:  http://aa5au.com/rtty.html

Coy
-- 
Coy Day
20685 SW 29
Union City, OK 73090
405-483-5632




Calhoun, Charlie wrote:
> Happy New Year all!
>
>
>
> I ran the RTTY Roundup for the first time this year.  It was a lot of
> fun.  It wasn't a stellar effort.  I didn't work the entire period due
> to the kids being sick, so I had to take several breaks to help them.  I
> also got off to a slow start learning N1MM, which I hadn't used before
> but it seemed to be time to put CT behind me and move on to a test
> logger with more functionality, namely a digital interface.  I did
> manage to beat last year's Oklahoma SOLP entry, so I was pleased with
> the first time effort during this test.
>
>
>
> I have a question, though, that would help me with my operating practice
> for this contest and others in the future.
>
>
>
> I don't have a big fancy rig, I'm running a Yaesu FT-847.  It has DSP
> and I can adjust the high and low cut separately.  I've learned to do
> that and use it to the best of my ability.  The problem I found I had
> was with strong adjacent signals.  I adjusted the DSP so I had a band
> pass about the width of the RTTY signal.  I also adjusted the band pass
> filter on the rig to one side and worked near the edge of that side and
> that helped greatly with adjacent signals to that side.  But that still
> left the other side open.  The built in BPF in MMTTY also helped some
> but didn't do anything for the adjacent strong signals.  When I had a
> strong signal on the open side of the pass band it would overload the
> front end and I would lose the weak signal in my DSP pass band.
>
>
>
> Is there anything else I might try to attenuate signals out of the
> passband so they don't overload the front end?  One thing I didn't try
> was the attenuator.  With some suggestions, I'll try some things during
> NAQP CW this weekend.
>
>
>
> I also have an older Icom IC-736, but I don't use it much for 2 reasons.
> It doesn't have DSP and I don't currently have it hooked up for Rig
> control, but if suggestions are made to try it in comparison, I can do
> that too.
>
>
>
> Thanks in advance for any help.
>
>
>
> 73
>
> Charlie Calhoun, K5TTT
>
>
>
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