Hi Lee,
You get what you pay for... I found the bare kit
type receiver front end needed a bit more help for
a high rf level repeater site. I bought the extra
helical preamp front end and it works just fine.
Also depends on the era and type of kit receiver.
Some have minimal amounts of helical front ends,
some are pretty robust with 5 to 8 helical cavities
in the front end.
There is no free lunch,
Back in my early days ("wooden repeaters") I installed
a kit built repeater at a broadcast site, before I
got down the hill the repeater locked up in transmit.
I traced the problem back to the basic cor kit circuit
without any extra rf bypass cosiderations... not
enjoying the nearby FM Broadcast Transmitter.
Logic & isolation diodes make good rf rectifiers...
A hand full of 220pf disc caps in all the right
places and we were once again working well. The
advantage of a commercial radio would be the added
extra rf bypass and shielding. Sometimes there
is no free Commercial radio lunch... a standard
converted Micor Mobile will start in chassis desense
at power levels above 30-40 watts. I'm sure the
converted high powered mitreks also suffer from
the same problem.
Kits and conversions are a great way to learn
about the equipment, else you buy plug-&-play
and start playing with the controller right away.
There's no reason you can't run a Hamtronics
repeater at a commercial site when all the
homework is done properly. Their turnkey boxes
are even FCC Type-Accepted.
cheers,
skipp
> Q <[EMAIL PROTECTED]> wrote:
> While I agree to a certain extent,having one on the
> 220 band for 22 years, they didnt play well in the
> 2 meter band with all the rf flying around and were
> replaced with MastrII's which have been flawless
> for a quarter century and with superior performance
> and better audio,squelch,tone decoding,and on
> and on...
> I wouldnt even consider any Hamtronics stuff for a
> commercial site-ever! You can learn a lot by doing
> your own conversion, probably more than
> by building their kit. And the docs are superior too!
> 73,Lee,N3APP
>
> skipp025 wrote:
>
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