[HATS] HATS ATV Transmitter - User Survey

Ed Manuel (N5EM) n5em@flash.net
Mon, 23 Apr 2001 10:53:44 -0500


Gang,

Time is approaching for the next run of the HATS FM ATV transmitter.  A 
couple of questions for you folks to ponder and respond to.

Please hit respond to this message if you answer YES to any of the 
following questions.  Please DONT if you aren't interested :-)

1.  Are you interested in buying one of the next batch of HATS FM ATV 
Transmitter?          yes/no

2.  Are you interested in buying more than one?             quantity?

3.  What band(s) are you interested in 
(quantity)?               33cm,                23cm,                13cm

4.  What power level?                      approx. 10 
milliwatts,                  50 milliwatts,              2 watts

Special 33 cm section.

If you are interested in 33cm would you be interested in a milliwatt 
version or a higher powered version, realizing that the higher power 
version might cost more (supply/demand).?            mw/W

FYI, the last production HATS transmitter was available in the following 
configurations:

33cm/23cm - 10 milliwatt, 50 milliwatt (true dual band capability)

23cm - 2 watt, using a Mitsubishi power module

13cm - 10 milliwatt, 50 milliwatt.

We have found a couple of 900 mhz. power modules that would make a 2 watt 
version possible but not a drop-in replacement to the Mitsubishi module.  A 
different board layout would be required. Many are using old cellular 
telephone amplifiers that take milliwatts to drive to many watts.  If there 
is sufficient demand for a 2 watt, 33 cm version we can do that but not for 
half a dozen transmitters.

The new HATS design will come standard with two aural subcarriers (you can 
turn one or both off by zeroing the injection level), and switch selection 
of two different, pre-set frequencies.  The most popular, by far, of the 
last run was the 2 watt, 1.2 ghz. version and the 50 milliwatt 2.4 ghz. 
version.

Additional comments are always welcome.

Ed Manuel, N5EM
n5em@amsat.org
Houston Amateur Television Society, Inc.





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