here are always those who know how to up the
output on your tx (say using directional antennas, high-power
ops), but in most cases the video link dies first!
It is normally less than 1000 yards, unless you use
pro stuff, satellite links or something likewise
exoctic.
A german group using 4.4 MHz equipment stated that their
tv-tx range was about 800 meters, depending on direction,
and they use small directional antennas!
I gather that Tom Rust at times has run into rf problems,
with the tv camera eventually giving a very close view of
the terra firma before transforming into something that
might once have been a glider with tv-equipment onboard.
There is simply no room in most models for high-power tv-
equipment, so you will have to rely on directional antennas
and such, and asistants, working the amplifiers and antennas,
if you want to get far from your home base. And a safety pilot
will den needed as well!
For selfnavigating aircraft (aka UAVs), whichever size, you
still want to have a take-over-and-bring-home function
(a bit like a TACOMA (sp?) Herc). And a selfdestruct, and
emergency parachutes!
We are now speaking LOTs of money, and extremely complex
operations, not least legal-wise, as AF, ATR and other
agencies must be cooperated with.
The among best pictures I've seen have all been taken from
simple aircraft, like the Teddy and a HLG!
So a two miles radius, at the very most, for us without
sponsorship from CIA, The Sultanate of Burnei or similar
institutions!
EPP models are good as they provide some shock protection
for your equipment an ability to take off almost anywhere!
Size is a matter of legalities, taste and funds.
Tord,
Sweden
PS A lot forget that the a badly taken photo doesn't get better
if taken from a model airplane, and that their own upturned
faces aren't the most interesting either!
As a technical feat aerial photos are as old as flight itself,
so while it at times can get thrilling, as when some strap their
digital camcorder on the back of their models and then start low-level
aerobatics, while photos of the local model airfield seldom is!
<URL:http://www.ozemail.com.au/~majali/Zagi-THL.jpg>
<URL:http://www.ozemail.com.au/~majali/Zagi-N-big.jpg>
<URL:http://www.tord.nu>
Local weather: http://www.reab.se/weather.html
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Tord S. Eriksson, Ovralidsg.25:5, S-422 47 Hisings Backa, Sweden
Tel. (mobile): +46 (0)736 77 88 96
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