[RTTY] [rckskimmer] Frequency accuracy of WZ7I RCKskimmer spots

Mark n2qt at yahoo.com
Fri Jan 10 15:40:32 EST 2014


Remember this is still way better than the accuracy of spots made by folks using afsk 
and not adjusting for that offset!  

We have become a bit spoiled by the performance of the CWskimmer, but don't forget
there were also initial problems there as well.  

If you are particularly analytic you can down load all the spots made of you during a particular
contest per the information at the RBN by using the process at

http://reversebeacon.blogspot.com/2013/12/finding-your-spots.html

You can then compare those spots to what is recorded in your log.  

Mark. N2QT
My own rckskimmer experiment during RU failed when it died about 10 minutes in. 
(A non skimmer related pc issue).

> On Jan 10, 2014, at 2:17 PM, Ktfrog007 at aol.com wrote:
> 
> Since mid-December I've been running a RCKskimmer and  I used it most of 
> the time in last weekend's RTTY Roundup.  I had  calibrated it to be as 
> precise as possible for my own station, but I noticed  that I could never get it 
> perfect as it was often off by random  amounts.
> 
> I noticed the same thing during the contest.  My spots  were closer than 
> WZ7I's but often they still weren't as accurate as I hoped and  they varied 
> randomly.
> 
> I didn't take time during the contest to study the  problem.  I was too 
> busy having fun.  And I've not looked into it  since.
> 
> 73,
> Ken, AB1J
> 
> 
> 
> In a message dated 1/10/2014 18:24:47 Coordinated Universal Time,  
> k6ll.dave at gmail.com writes:
> 
> I just  turned on the radio at 1800Z, and saw the following spots from  
> WZ7I-#:
> 
> 1800Z  W1AW/7 21080.9  My K3/mmtty reports  21081.13
> 
> 1802Z EA1HNP  14087.5  My K3 reports  14087.66
> 
> At 1805Z, WQ1H spotted W1AW/7 at 21081.1, agreeing with my  K3.
> 
> In the last few minutes WZ7I-# also reports AG3V, WB4GLI, KI0KB,  W6SFK, 
> IK2RPE cq’ing on 21080.9.  These are actually stations working  W1AW/7.
> 
> I guess I don’t understand what’s going on.  W1AW/7 is  still there with a 
> good pileup, so here is a chance for others to report some  measurements 
> also.
> 
> Thanks.
> 
> Dave Hachadorian, K6LL
> Yuma,  AZ
> 
> 
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