[RTTY] RTTY Best Practices

[Bill Coleman]

On Jan 15, 2006, at 4:01 PM, Kok Chen wrote:

> Does Cabrillo check that both stations have copied the exchanges
> correctly before either one gets credit for the contact?  If not, it
> could explain the practice of not repeating an exchange :-).

Chen,

Cabrillo is just a data format for sending in logs -- it doesn't do  
the checking.

However, the contest judges use several layers of checking to  
adjudicate a contact.

Say W7AY and AA4LR make a contact duringIf W7AY and AA4LR each have logged a contact with the other station  
at roughly the same time, that's a confirmed contact.

If W7AY has AA4LR 599 GA, and AA4LR has W7AY 599 CA at roughly the  
same time, then W7AY gets credit for the contact, but AA4LR does not,  
because he did not correctly copy the exchange.

This approximation also extends to the callsign. Say AA4LR logs W7AT  
599 OR. Same as above, W7AY gets credit.

The contest judges use the computer software to detect non-matching  
contacts, but the judges make the actual determination of who gets  
credit and who does not. The contest software just makes suggestions.


Bill Coleman, AA4LR, PP-ASEL        Mail: aa4lr at arrl.net
Quote: "Not within a thousand years will man ever fly!"
             -- Wilbur Wright, 1901