[TowerTalk] Advice Wanted-Tuning A 10 Meter Telrex Beam

[John Lemay]

Hopefully, you are taking measurements with the aerial clear of the ground,
and pointing skywards ? Otherwise ground proximity will make an impact.

John G4ZTR


-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of James
Archer
Sent: 02 July 2014 14:58
To: towertalk at contesting.com
Subject: [TowerTalk] Advice Wanted-Tuning A 10 Meter Telrex Beam

Tuning a Telrex 10M523 (Telrex 5 element beam on 23 foot boom)

After several days of work on the ground working with the matching system
and trying multiple combinations of driven element length to the Telrex
match position-the best we can get is an SWR of 2.3 at 28.500. We are using
an MFJ tuner through a 4 foot piece of coax to the antenna. Antenna has a
tuned matching stub set for 28.500.

We have followed exactly the specifications from the 5 page Telrex
instructions that are beautifully illustrated.

This is a wonderfully built antenna and we are very keen to get this tuned
up right and in the air working!

Anyone have any golden words of advice, we are of course looking to get the
SWR down below 1.5:1 at 28.500

Thanks in advance for any help you can provide.  Replies to N3ZS at
james.archer at erm.com



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