View Single Post
  #2   Report Post  
Old October 3rd 04, 07:44 PM
Keyboard In The Wilderness
 
Posts: n/a
Default

KTWG is on the island of Guam and 801kHz is indeed their assigned frequency

--
Keyboard to you


"Radioman390" wrote in message
...
When I was young, the FCC field offices would make annual inspection trips

to
AM stations, checking everything, from modulation levels, to exact

frequency
(you were allowed plus or minus 30 Hz from your assigned channel, and all

the
stations used General Radio frequency meters which had a standard crystal

in a
temperature controlled oven, and readjusted the station's frequency every

few
days if needed).

The transmitter crystal was also in an oven to control drift. Stations

drifting
off channel would cause heterodynes in receivers, and two stations, one

off 25
Hz high, the other 25 Hz low would cause an audible 50 Hz hum in receivers
picking up both stations. The growling sound you hear on some AM channels

at
night is caused by this.

A station cited by the FCC usually replaced its Chiel Engineer if they

failed
the inspection. So it was high stress time.

One thing you should know about US broadcasting: With a very few

exceptions
stations East of the Mississippi have call signs that start with "W" and

those
west of the Miss, start with "K". So logically KTWG should be West of the
Mississippi.

The FCC inspector arrives at KTWG and measures the power and it falls

within
the limits for its 10 kW license (in FM it's plus 5% to -10% of rated

power),
and the peak modulation is below 100%. He also checks the Type Approval

labels
on the transmitter, and it's OK too. He measures the hum, and it meets

specs.
He then pulls out an early frequency counter, with nixie tubes, and

measures
the carrier frequency during a moment of no modulation.

801.002 kHz it reads. Silence as the new station manager's face goes

white,but
the chief engineer smiles. The station manager moved from Baltimore only a

few
weeks earlier, and now he stands a chance of being fired along with

engineer.

Why is the engineer smiling?

Note: when this happened everything was "cycles" kilocycles, megacycles,

etc.
That does not explain what is going on.