[TenTec] Purpose of 250 Hz 8 pole filters

[k8vf_mark at centurytel.net]

"Matching the received signal pitch to the transmitted has been a problem
with narrow receivers for a loooong time. I had a Hint & Kink published
in QST back about 1981 after a frustrating FD with few answers because
the rig didn't transmit where I listened. After I borrowed a second
receiver to adjust RIT so the two signals matched I made many contacts."

This is something which is a real issue.
MANY guys don't bother to check to verify that they are transmitting and 
receiving on the same freq. Sometimes, WAY off!(and NOT just because they 
liked a different pitch than I.)

I have worked many guys in contests who were just obviously either using RIT 
or hadn't a clue about how far off they were.
We should all check this item periodically on our rigs. It wouldn't be 
tolerated on SSB. Cw ops shouldn't either.
It is too easy to check.