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

[Ktfrog007 at aol.com]

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