Jayseebee said:
Actually we (retired and Ex ATT,Bell,SBC and now ATT again) used to do a
frequency run test with an audio signal generator and a receive
measuring device at the far end. If needed we would put in a equalizing
unit (Wescom, Teltrend, etc) that we could adjust the 300-to 3khz slope
(sometimes up to 8khz for audio program loops for radio broadcast) with
to make all frequencies as flat as possible or boost the level of the
freqs as needed. You can get even more technical in the time delay at
different frequencies on the same copper path traveling from one end to
the other. Lets see what this stirs up.
JCB
I was a US Army broadcast engineer at Ft Greely, AK back in the early
'70s. Our AFRN network feed came through the "White Alice" microwave
network. By the time it reached our station the level was so low that I
had to use a spare magnetic phono preamp from our old transcription
turntable to bring the feed up to line level. Before that, when they
went from network to live, or back to the network they had to reset the
levels. Repeated requests were made to fix the feed, but we were always
told that the level was ok in Fairbanks, and the problem must be on our
end of the feed because the phones worked.
--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.
Michael A. Terrell
Central Florida