Ham TV and how you can receive it

When the Space Shuttle is on a mission, Pressing Touchtone function
one (#1) on the "QST machine"
will buy 60 minutes of audio on 146.730 Mhz. Between 7PM
and 9PM it will also bring up the 434 Mhz Ham TV Transmitter with
Shuttle Video!
Simplified instruction on how to receive "HAM" TV with a cable
ready TV or VCR.
- Ham television can be received by the average amateur radio operator
or interested individuals on a regular home TV set.
- The best way to receive simplex ham TV is with a receiver and
antenna that is manufactured for optimum reception.
- In order for you to find out if you want to upgrade to a high quality
receiver, that you can purchase, this instruction sheet will assist
you to try it without spending any money and to generate you interest
in HAM TV.
- To find out more information about equipment for 434 MHZ HAM TV that
you might want to purchase, please check out
http://www.hamtv.com
It just so happens that 434 Mhz is the frequency where Local Hams
transmit live "REAL TIME" television. This is the same type of TV signals
that your normal Broadcasting stations transmit. The only difference is
that it's lower than channel 14.
It's also nice to know that on a CABLE ready TV or VCR, if you place
your UNIT into the "CATV" mode then go to Channel 59, that Channel 59 is
real close to the 434 MHZ frequency you want to be on to receive
"Ham TV".
One last thing! You need to understand that to get "HAM TV"
on 434 MHZ, you need to do the following:
- Find a Ham Radio Operator that transmits "HAM TV".
There is a regular schedule that you can be sure a TV signal is on.
The schedule is, 7PM to 9PM whenever the Space Shuttle is on a
mission, and every Tuesday from 7PM to 8PM when the Las Vegas
Amateur Radio Club NET is conducted on 146.940 Mhz.
- You can be sure there is a TV Signal on the air by going to the
"QST machine" on 146.730 Mhz.
whenever the message ID Barker runs, if the TV transmitter is on,
there is a 250 Hertz Tone transmitted continuously under the message.
You can hear this tone. If you hear the tone, this means the TV
Transmitter is on. The purpose of the tone is so that you can hear
it, but it also operates CTCSS decoders on Ham Radio Transceivers so
regular Ham TV Operators will know when the TV Signal is
transmitting.
- Disconnect any Cable TV or other input you might have to the antenna
or CATV input on your TV or VCR. Plug in a UHF or any other TV
Antenna you have into the CATV input. If you have a splitter, do not
use it, go directly into the Cable TV input. The best antenna would
be a UHF directional Antenna with the elements horizontal, if you
don't have that, the next best is a outside UHF/VHF Antenna with
coaxial Cable to your TV set. In the Las Vegas area, we have placeed
the TV Transmitter on top of the Mountain (Black Mountain) in
Henderson (Of Course) where TV 5, 3, 39, 21, 10 ETC. Transmit from.
- Be sure that you find the switch or menu screen to get your receiver
into the Cable TV mode. This would be the same
function if you really had cable TV. Perhaps you already have Cable
TV, and are already in the CATV mode, that's great, unplug your
cable from the back of your TV and plug in the antenna and go to
Channel 59.
- If you have a scanner you can listen to the local simplex talk back
frequency for information about Ham TV on 434.000 Mhz when the
transmitter is on. The local talk back frequency for simplex Ham TV
is 144.300 Mhz.
- Be sure to turn up the sound on your TV once you get the picture for
more information.
- Don't forget, this is only a hobby and you will want to find out
more about how to improve reception, so check out the following
reference books and web site information sources. ARRL Handbook
Chapter 12 PAGE 46.
http://www.arrl.org
and http://www.hamtv.com
- The first item you can buy to make reception better is a UHF
Directional antenna, connected with coaxial cable to your TV set
still in the CATV mode. Get the antenna as high in
the air as possible and make sure the elements are horizontal. The
next item to buy to make a real improvement is a Down
converter. You connect your new UHF Directional antenna to
the Down converter, then connect the Down
converter to your TV set and tune in Channel 2.
We will be adding an E-Mail list of Las Vegas Hams that transmit
"HAM TV". Until the list is complete, please e-mail Steve
Scott, KD8S
<kd8s@skylink.net>
for answers to your questions.
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