[TOEC] [CCF] SAC CW 2012 RESULTS PUBLISHED

Torvald Lundberg torvald at eurab.se
Sun Nov 11 03:52:43 EST 2012


Hi!

The Cabrillo frequency resolution is 1 kHz so 3509.800 is shown as 3510.

73
Torvald SM2EZT

Mikael Rytky skrev 2012-11-11 09:43:
> Hi!
>
> Just a brief comment on SM6Z being 200 Hz off frequency limit.
>
> -Any
>   rig thats been in use for some years may have drifted 100Hz or more due
>   to ageing of the frequency reference and due to lack of regular
> service. A drift of 100 Hz may even occur during the contest due to generated heat. Very few of us do have the possibility to check the Transmitter
>   frequency with such an accuracy. And even fewer will ever do so.
>
> So I'm pretty sure that SM6Z just has relied on the frequency readout of the tranciever. With CAT this may have been proved. But CAT wont come to all shacks. I think its a bit harsh reducing his result for that.
>
> A couple of suggestions, if 100 Hz slices really is the way to go:
>
> 1. SAC management should use dedicated RBN-receivers used for off-frequency-checking that are checked and calibrated regarding frequency accuracy. Today nobody knows the status of the RBN-data, any piece of junk can be behind the readings from RBN. Yes, many RBNs said the same thing, but still.
>
> 2. When 1. is implemented, a small reasonable deviation from 3510 should be allowed when reading RBN data due to the facts about our radios mentioned above.
>
> 3. When operating, keep a safe distance to 3510 if your not sure of the status of your radio.
>
> Best regards to all
> Mikael SM6VJA
>   		 	   		
> _______________________________________________
> TOEC mailing list
> TOEC at contesting.com
> http://lists.contesting.com/mailman/listinfo/toec
>
>



More information about the TOEC mailing list