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The Omaha repeater down after being relocated
To the KPTM Fox42 TV tower that is located midway between
Omaha and Lincoln near Springfield, Nebraska. The receive antenna
is at 1,100 feet and the transmitter tower is at 1,200 feet above ground
The transmitter has 100 watts output. We watch and hope for it's return. There
is still some simplex ATV activity in the area and some hams are working on a
2.4 GHz ATV system.
The ATV Repeater transmits on 421.25 MHz and receives on 434.00 MHz. d
General ATV Information.
In strong signal areas it is possible to receive some strong
ATV by using a cable-ready television. To do so, you have to
tune to cable channel 60 or channel 57 (Cable mode not
Network mode). Then disconnect the cable from the back of the
television and connect the TV to a UHF antenna. If you don't
have a UHF antenna, use any VHF antenna or at the worst, use a 5
foot length of wire. When you are using an antenna but set to
CABLE CHANNEL 60 you pick up the 439.250 MHz. This is the DX
frequency. When you are using an antenna but set to CABLE CHANNEL
57 you pick up the 421.250 MHz. This is the output from the Omaha repeater
but the input is on 434.00 MHz and cable channels are not on this
frequency.
Another technique is to use a thumb-wheel tuned VCR to tune down to the
ATV frequency at 70 cm. A unit like that would probably be at least 5
years old. (Digital tuner VCRs don't usually give this flexibility.)
Audio for ATV Information.
If you have a scanner and good antenna you may be able to hear some
of the ATV audio. First, many ATV stations use 144.340 MHz simplex to
chat and make contact. A good frequency to have in your scanner.
Next you may be able to hear the audio from the ATV station by listening
to 425.750 (the audio for 421.250), or 443.750 (the audio for 439.250)
or 438.500 MHz (the audio of 434.000).
Locally the 147.000 repeater is used during nets and ATV activity.
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