[MRCG] Poor conditions in Eureka

[Tim]

no..

On Sun, Sep 7, 2014 at 9:36 PM, Alexander Seddio <alexseddio at gmail.com>
wrote:

> Too late to chat?
>
> Sent from my iPhone
>
> > On Sep 7, 2014, at 9:33 PM, Tim <timsamm at gmail.com> wrote:
> >
> > Hi Mark - well my CV-2455 filters could be mistuned.  I'll try to figure
> > out how to test the tone freqs to see if there is a detectable problem on
> > this end.  There's gotta be knobs in there someplace!  On receive, it was
> > working fine...  But it IS 50 years old.....
> >
> > I also had the R-390A driving my desktop fldigi as a backup in case my
> mil
> > gear was still hosed (it wasn't).  The R-390 was connected to the 80 foot
> > aluminum gutter up on the roof as the antenna - so I was using Space
> > Diversity - and it worked well.. Garbles on one receiver was usually OK
> on
> > the other and vice versa...
> >
> > Perish the thought, but fldigi and a sound card is a really powerful tool
> > for detecting slight issues on TX signals. And the AFC works great too...
> > Fun!
> > Tim
> >
> >> On Sun, Sep 7, 2014 at 9:23 PM, Mark J. Blair <nf6x at nf6x.net> wrote:
> >>
> >> Regarding "Somebody running about 40 Hz wider.": I think that was Tim
> >> N6CC. In my waterfall display in fldigi, I could see that his shift was
> >> just a tiny bit over 850 Hz; I didn't measure carefully, but 40 Hz looks
> >> about right. That didn't cause any problems for me copying him, though;
> his
> >> signal was nearly 100% clean copy here in Riverside tonight. I suspect
> that
> >> your trouble copying him was due to local noise, since he reported
> copying
> >> you just fine, and I had no trouble copying him. I think that the
> slightly
> >> wider shift might have slightly degraded SNR, depending on how tight the
> >> receive modem filters are, but probably not enough to be a problem all
> by
> >> itself.
> >>
> >> I've found that I need to crank my Tx audio well below 100% power to
> avoid
> >> reports of audio spurs, which surprised me. I've set it for 50W PEP out
> of
> >> my 100W PEP rig, and that seems to make my signal clean. The Tx level
> pot
> >> is set really low on my audio interface even with 15dB Tx audio
> attenuation
> >> in fldigi, so maybe I need to fiddle with some more settings in my silly
> >> newfangled radio's menus? Or maybe I just need to get off my butt and
> get
> >> FSK working on my T-368C. :)
> >>
> >> Once I'm running proper green gear on Clatternet, I might still set up
> >> fldigi hooked to an auxiliary receiver to serve as a station monitor to
> let
> >> me monitor my Tx signal spectrum.
> >>
> >> --
> >> Mark J. Blair, NF6X <nf6x at nf6x.net>
> >> http://www.nf6x.net/
> >>
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