>
> From: "Jeff DePolo WN3A" <[EMAIL PROTECTED]>:>
> >
> >Even pass cavities don't necessarily attenuate harmonics
> produced by a
> >circulator sufficiently. A 1/4 wave cavity will have a very
> good pass
> >response at 3/4 wave (3rd harmonic).
>
> A long time ago I tuned a 10" diameter Motorola
Thanks to Bob, Skip, Jeff and everyone who assisted me with my Circulator
question. You have given me much to think about as to "IF" I want to install
one on my 2-Meter machine.
Let me throw this question out as you guys have been there and done that!
Under what circumstances would you use a circul
Title: Message
If you
give up a cavity, you're giving up around 40 dB of isolation. The pad only
provides 6 dB of isolation. Unless you've got a transmitter that is
cleaner than any I've ever seen, or your split is many MHz, the answer is no, it
won't work.
-Original Message---
> Thanks to Bob, Skip, Jeff and everyone who assisted me with
> my Circulator question. You have given me much to think about
> as to "IF" I want to install one on my 2-Meter machine. Let
> me throw this question out as you guys have been there and
> done that! Under what circumstances would you us
There have been many techniques tried over the years, your best bet is to
check the websites of the controller makers and see what the solutions they
have are. Also Doug Hall made one for Kenwood Radios www.dheco.com called
the RBI-1. There's one of those on EBAY now
Gary - K7NEY
- Original M
The free radios haven been spoken for
Thanks for all the replies.
Jim Duram, K8COP
Whitehall, MI.
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> "Jim Cicirello" <[EMAIL PROTECTED]> wrote:
> Under what circumstances would you use a circulator on your 2-meter
> repeater?
Every one, especially since its my job to make sure there are no
problems at the repeater site.
> Here is my setting:
> A strong RF Site with a 152.480 Paging Transmitte
Hi All!
As the title suggests, I'm looking for Matt, KB9JZJ. He's from Illinois, but I think he is out in California somewhere! HE WAS A MEMBER OF THE GROUP!
Not to worry, this is not an emergency, just need to catch him!
Thanks Brian, WD9HSY
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There have been several references, in recent postings, to the need for
double-shielded coaxial cable when hooking up components within a
repeater cabinet. Although RG-142/U is widely used by repeater
builders, perhaps a better choice for some applications is RG-400/U. At
first glance, RG-142/U a
have a tx/rx 28-70-15 says 450-470 will it tune to the 440 band and
whats the wattage?
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I HAVE A TX/RX 28-70-15 SAYS ITS 450 -470 WILL IT TUNE TO 441?
AND WHATS THE WATTAGE?
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Hello,
I am looking on buying a Zetron 38a and connecting it to my GM300s
1. Does anyone have the software to program the controller via computer.
2. Looking to wire the GM300s to the 38a
Any help would be great.
JOHN
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Hi John
No special software-just use a terminal emulator
program such as Bitcom or Procomm etc or even hyper
terminal.
The db9 connector has TX , RX ,and a ground so it is
very simple to make up.
I do have the manual and could help out with some
further info-if so please email direct.
Thanks
B
Hi guys
just a quick question
is it better to use a 6 inch cavity tin instead of a 4 inch cavity tin
filter on 477 mhz (ie less loss )
thanks [EMAIL PROTECTED]
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