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Final arrangements have been made for me to conduct
an audio proof of performance on WNTP 990 tonight. This is the test that
had been rescheduled from last Friday night because I had the flu.
Test will include various tones (50, 100, 200, 400,
1K, 2K, 4K, 6K, 8K, 10K) to measure frequency response and distortion.
Tones will be transmitted at 95%, 75%,50% and 25% modulation using the station's
main transmitter at 50KW and Daytime Antenna. It will then be repeated
using the main transmitter at 10KW and Nighttime Antenna. There will
also be periods of silence while I check noise and due some tuning on the
transmitter and phasor.
Les Rayburn sent me a recording of a
female voice with an English accent to announce the station and I will
be using this periodically. The ID says, "This is WNTP performing
transmitter testing. WNTP. Whiskey-Norway-Tango-Papa testing."
If you missed the WNTP Test in December or were
unable to receive it because of the auroral conditions that night, this will be
anther change to catch it. The test will commence at 0501 UTC (0001 EST)
and continue until completed, or 0700 UTC (0200 EST) which ever comes
first.
I want to remind you that this is NOT a DX test,
but equipment performance measurements and adjustments. So there will be
no unusual warbler tones or the like to help single out the station. But,
hopefully, the test tones will help, especially those in the 2-6K
range.
René F. Tetro,
Chief Engineer WNTP/WFIL 117 Ridge Pike Lafayette Hill, PA 19444-1901 Phone: (610) 828-6965 Extension 41 Fax: (610) 828-8879 Email: rtetro@xxxxxxxxx (Forwards to both home and work) |
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