My experience with LDF4-50 and LDF4-75 is exact;y the same as Peter's.
Its always best to use an antenna analyzer or TDR to cut all of the
cables to the same length. Its very, very easy to do.
----- Original Message -----
From: dj7ww@t-online.de
To: clive@gm3poi.com, topband@contesting.com
Sent: Tuesday, March 3, 2020 3:39:21 PM
Subject: Re: Topband: Phasing lines
I have used LDF4-50 and LDF 4-75 by RFS for phasing lines on HF bands.
They did as expected with 88%, however on VHF/UHF I would measure how they
behave.
73
Peter
-----Original Message-----
From: Topband [mailto:topband-bounces+dj7ww=t-online.de@contesting.com] On
Behalf Of clive@gm3poi.com
Sent: Dienstag, 3. März 2020 16:30
To: topband@contesting.com
Subject: Topband: Phasing lines
Hi all,
I wonder whether anyone has used LDF4-50A for phasing lines and verified the
VF as being 88%. If not have you an idea of any spread on the VF.
I want to use some where it could make the difference to cable length.
However nothing will be assumed it will be measured. I note from the spec
that
they give a tolerance of 5% but I doubt some how that the VF varies that
much. 73 Clive GM3POI
_________________
Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
_________________
Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
_________________
Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
|