@yahoogroups.com
Sent: Thursday, December 14, 2006 3:37 PM
Subject: [Repeater-Builder] Re: 6M duplexer wanted in UK
Are you saying that a duplexer built from heliax can cope with a
0.5MHz plit at any temperature?I somehow doubt it (no invar!)
Cheers Dave UZN
IM Ashford [EMAIL PROTECTED] wrote:
Any expansion due to heating of the heliax inner should be compensated by
expansion of the linking feeder inner,pushing the tuning bar upwards.
I had a set of homebrew 220Mhz duplexers made out copper pipe that would drift
with temperature changes. I
I had a set of homebrew 220Mhz duplexers made out copper pipe
that would drift with temperature changes.
Inch and Five-Eights hard line should not change value nearly
as much as the same circuit home-brew from copper pipe.
I built a plywood box, put them inside, and added a small
Arrgh! This place is lousy with people who are looking for 6 or 8 of
those pieces.
'JK
--- In Repeater-Builder@yahoogroups.com, Joe [EMAIL PROTECTED] wrote:
IM Ashford [EMAIL PROTECTED] wrote:
Too bad the UK is so expensive to ship to. We just pulled out six
200 foot runs of Andrew
, 2006 3:37 PM
Subject: [Repeater-Builder] Re: 6M duplexer wanted in UK
Are you saying that a duplexer built from heliax can cope with a
0.5MHz plit at any temperature?I somehow doubt it (no invar!)
Cheers Dave UZN
--- In Repeater-Builder@yahoogroups.com, Matt Beasant [EMAIL
used.
73
Steve
- Original Message -
From: Matt Beasant
To: Repeater-Builder@yahoogroups.com
Sent: Wednesday, December 06, 2006 4:06 PM
Subject: Re: [Repeater-Builder] 6M duplexer wanted in UK
My heliax duplexer has been in service now for over 2
--- In Repeater-Builder@yahoogroups.com, dave_g7uzn [EMAIL PROTECTED]
wrote:
Hi All, Is anyone with a set of cavity filters suitable for 50/51MHz
brave enough to sell them to me and get them shipped to the UK for a
6M repeater project? ALL expences will of course be covered. If you
can
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