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Old February 1st 08, 04:46 PM posted to rec.radio.amateur.antenna
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Posts: 33
Default 70cm reflectometer?


"K7ITM" wrote in message
...
On Jan 31, 5:01 pm, Jim Lux wrote:
Suzy wrote:
At the risk of thoroughly boring you all, I'll summarize the position
to
date. I have a good workshop with power tools and I like metal bashing
and
am quite happy with PCBs. I even have an electronic calliper so can
measure
thickness accurately. However, my eyes will not allow very fine work
like
SMD. I am looking to build an SWR meter using two 1 mA meters, one for
forward and one for reverse. I am looking for a practical
(non-theoretical)
article on how to build one. I am wondering if there is one the ARRL
handboook before I go to the exp-ense of buying one here in Australia.
Most
of the beautifully argued theory on here is way way beyond me. Any
pointers
to a suitable article?


One might find that you can BUY a surplus directional coupler for 440MHz
fairly cheaply. Check Ebay, etc.

Then it's just a matter of wiring up electronics to the coupled ports.


:-) I've thought maybe I could just etch one next time I'm making
boards and drop it in the mail to her. Heck, I'd even toss detector
diodes and terminating resistors on it.

Cheers,
Tom


Thanks Tom, but give me a practical design! I can do the board if you give
me the dimensions.


 
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