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ATV (Amateur Television) is real-time color TV (with sound) - just like
broadcast TV except we hams are doing the transmitting and receiving!
ATV is really starting to pick up speed in the Research Triangle Area.
There is an ATV repeater located in Durham, a number of people are
already on the air, and some nifty new applications are being planned.
Some people are still recovering from Hurricane Fran antenna damage, but
you can often find video QSO's on the repeater (sometimes with 3-4
stations participating). We're going to start a regular ATV net some
time soon.
So what's it like? It is both fun and useful. Just the other day I was
in an ATV QSO with Sean KF4IVA and mentioned I needed a manual for a
gadget that I picked up at the last Durhamfest. Sean said it sounded
familiar and asked me to show it to him. So I did, and it turns out that
he has a similar unit, which I have borrowed to help troubleshoot mine.
Yesterday, I was showing him how I have built adapters to use various
microphones in my shack. I didn't attend the RARS Field Day activity,
but I saw it all live from Raleigh via Mark WD4KSE's ATV station. And of
course, I've been able to see what other hams' stations (and family and
visitors) look like via ATV - it is definitely a more personal
experience than talking to a disembodied voice on my HT. And it is a
good intro to ham radio's capabilities - the dozen or so Cub Scouts who
visited WD4KSE's shack in person and my shack via ATV had a great time.
Other local hams already on the air include Joe KD4LLV and Woody KJ4SO.
Several others have rigs but can't quite make it into the repeater site
in Durham yet - the wideband nature of ATV makes it tougher to get
through compared to FM voice so better antennas are required. And ATV is
about to go airborne! KF4IVA is building a model rocket that'll include
an ATV transmitter (eat your heart out, NASA) and Dewey WA4AHR plans to
include ATV on board his radio-controlled model airplane.
But there is a more serious side to ATV too - one of our goals is to
make ATV part of the capabilities hams bring to emergency situations -
imagine on-site damage assessment relayed back to emergency management
centers. Just after Hurricane Fran, WD4KSE was beaming color video from
Cary to me in Chapel Hill, showing the destruction around his
neighborhood. I'm not sure if it was even possible to drive between our
two stations, but ham TV made the trip just fine. I've also duct-taped
my camcorder to my crank-up tower and sent it up for a look around via
the rotator. Some day we'll have that kind of ability with remote
cameras at various sites within the triangle. And some day we'll have a
repeater site with wider coverage or linked repeaters that will let a
ham with a mobile ATV station send images directly from a disaster site
to the Red Cross or other agency.
The ATV repeater was put together by hams from across the region who
formed the Triangle ATV Association. With generous financial support
from DFMA and RARS, Charlie WA4WTX's donation of tower space and
equipment, and hard work by hams from Durham, Cary, Chapel Hill, and
Raleigh, this has truly been a triangle-wide project. The repeater call
sign is KJ4SO, as Woody KJ4SO was the prime force in getting the ATV
project started and building the repeater.
The ATV repeater is 434.00 MHz input and 421.25 MHz output (horizontally
polarized). If you have a "cable-ready" TV set, the repeater output
frequency is cable channel 57. Try hooking up an antenna and see if you
can receive the repeater, particularly if you're located in the north
Durham area - the repeater is on "TV Hill".