[NCC] NA Sprint RTTY

aflowers at frontiernet.net aflowers at frontiernet.net
Sun Mar 11 10:25:51 PDT 2012


Sounds like it could be a NET+AFC issue?  I think jeff had one radio on AFSK and the on FSK.  

Andy K0SM



On Mar 11, 2012, at 10:48 AM, "Jeffrey Ach" <w2fu at frontiernet.net> wrote:

> Well, I'll have to go check the amount again.  I had tested all b4 the
> contest and it was fine then.  I did have two radios setup, but it took more
> than all of my attention to deal with one.  Maybe I can get some RTTY
> pointers here..
> 
> We use all K3, N1MM+MMTTY..
> 
> The boys used all AFSK here for the NAQP RTTY a couple weeks ago, all worked
> fine except one radio on 20 had abt a two KHz offset between displayed freq
> and actual TX.  We knew that whatever radio we used in that position, it was
> the same.  The way I fixed this after the contest was to do an INI reset on
> N1MM. I never did find out what was wrong, played with it for hours!
> 
> This time, I setup two K3 with one soundcard.  I had both radios RX on left
> and right channel, worked great, BUT I couldn't get the stereo split to work
> on TX, so I used FSK on one radio, AFSK on the other.  B4 the contest, both
> radios talked to each other on-freq, and a friend confirmed they were both
> on the same freq.  BUT once I started, I got no answers on the FSK radio, or
> hard to get answers etc.  Then I figured it out "mostly" after I switched to
> 40 meters and started using the other radio.  Once I started using the RIT,
> I was OK, but I never did get the offset to go away.  This morning, I tested
> it against the other radio, and it was offset by half the spacing.  I shut
> down and restarted N1MM/MMTTY, Cleared the MODE on the K3, and set it back
> to FSK.... and it "cured" the offset......go figure.
> 
> I was careful about NET and AFC, Kept them off for all my checking etc.
> 
> Jeff
> -----Original Message-----
> From: ncc-bounces at contesting.com [mailto:ncc-bounces at contesting.com] On
> Behalf Of Jamie WW3S
> Sent: Sunday, March 11, 2012 8:04 AM
> To: ncc at contesting.com
> Subject: Re: [NCC] NA Sprint RTTY
> 
> 120 hz isnt much....I suspect you mean 1.2 khz, which is the offset...you 
> must be using AFSK? There is an offset that needs set, or turned off, 
> depending on what radio, and whether you are using FSK or AFSK.....great 
> score in any case under poor conditions....
> 
> 73, Jamie WW3S
> 
> 
> -----Original Message----- 
> From: Jeffrey Ach
> Sent: Sunday, March 11, 2012 1:02 AM
> To: NCC at contesting.com
> Subject: [NCC] NA Sprint RTTY
> 
> This was my first ever sprint, and first ever RTTY other than watching real
> RTTY ops...  Kinda fun little event.  Very slow start while I tried to
> figure out why I wasn't getting any answers..I needed -.120 hz of RIT for
> some reason and never figured out why.  Then N1MM kept trying to shut the
> RIT off for me, just trying to be helpful I guess.
> 
> 
> 
> Q       M       Score
> 
> 115    36      4140
> 
> 
> 
> 
> 
> Jeff
> 
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