At 07:17 AM 2/1/05 -0800, you wrote:
At 03:13 PM 2/1/2005 -, you wrote:
Does anyone have, or know where I can get plans to homebrew a 144/440
MHz crossband coupler (aka diplexer) ?? I would like to find
something with wideband characteristics (ie, low pass, high pass)
such as some of the
Derek,
Take a look at this one. You can build your own and by choosing
components you can can handle all the power you want:
http://home.datacomm.ch/hb9abx/duplexer.html
and for hf-6/2/70cm:
http://home.datacomm.ch/hb9abx/diplhf6m-vuhf.html
The weak link will be the capacitors and you can
At 03:13 PM 2/1/2005 -, you wrote:
Does anyone have, or know where I can get plans to homebrew a 144/440
MHz crossband coupler (aka diplexer) ?? I would like to find
something with wideband characteristics (ie, low pass, high pass)
such as some of the diamond or comet models, but needs to
And they have lots of duplex noise, even on 440 :) I changed all the
cabling on mine to RG 393 (142, 214 would work too). Duplex noise gone
after that!
James
Ken Arck wrote:
At 03:13 PM 2/1/2005 -, you wrote:
Does anyone have, or know where I can get plans to homebrew a
At 02:55 PM 2/1/2005 -0500, you wrote:
And they have lots of duplex noise, even on 440 :) I changed all
the cabling on mine to RG 393 (142, 214 would work too). Duplex noise gone
after that!
---I use two of 'em, each with no pigtails - only hard connectors on each
port. Can't say I've
At 2/1/2005 07:17 AM, you wrote:
At 03:13 PM 2/1/2005 -, you wrote:
Does anyone have, or know where I can get plans to homebrew a 144/440
MHz crossband coupler (aka diplexer) ?? I would like to find
something with wideband characteristics (ie, low pass, high pass)
such as some of the
I guess that could be a problem, but I've had pretty good luck with
mine. If they are kept in a controlled environment so the coax doesn't
pull in water, they should be OK. If you're really concerned about it, you
can go with a pigtailless model.
Bob NO6B
At 2/1/2005 11:55 AM, you wrote:
@yahoogroups.com
Subject: Re: [Repeater-Builder] Homebrew a 2M/440 crossband coupler?
I guess that could be a problem, but I've had pretty good luck with
mine. If they are kept in a controlled environment so the coax doesn't
pull in water, they should be OK. If you're really concerned about
Mine had pigtails, that japanese crap sucks (foil/braid shield). RG 393
was a blessing!
James
Ken Arck wrote:
At 02:55 PM 2/1/2005 -0500, you wrote:
And they have lots of duplex noise, even on 440 :) I changed all
the cabling on mine to RG 393 (142, 214 would work too). Duplex
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