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Old January 30th 08, 10:11 PM posted to rec.radio.amateur.antenna
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Posts: 33
Default 70cm reflectometer?


"Suzy" not@valid wrote in message ...

"K7ITM" wrote in message
...
On Jan 30, 9:57 am, "Suzy" not@valid wrote:
...

I'd like to thank all you kind fellows for your assistance, but
unfortunately a lot of it is rather above my head. I need to be pointed
at
an article that spells out exactly what dimensions, how to build etc.
(eg is
there one in the ARRL handbook?) And Owen, no in this case Suzy if not
short for Susan, so I'm not the person you knew.


OK, back to the first posting I made here. How about if I build one,
test it, and post the design and results somewhere? As I noted in one
of my postings, if I were to make one, I'd first consider how much
power I wanted to read, full scale, so if my offer is appealing, let
me know how much power you want to measure, max. Don't tell me a
kilowatt if you really are going to use it at 10 watts, because if I
design for a kilowatt, 10 watts will be low enough that you won't be
able to read it very well. In fact, I'd propose 10 watts as a
reasonable full scale for a lot of ham uses.

Cheers,
Tom

Hi Tom

That's a kind offer, but you needn't go to all the trouble of building it.
Just a pointer at the practical design will do (but no complex theory --
over my head!).

I want to investigate various 70 cm antennas (central frequency in
Australia 435 MHz). TX is switchable 5 10 20 watts. I want to standardise
on BNC, and have readouts on analogue meters (probably 1 mA movements)

Oh, and no surface mount components. Eyes not good enough!


 
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