davidjn
Thu 17th Jun 2010, 17:34
I have bought a Zetagi (Italy) SWR meter through Ebay and have tried to use this applying
the general instructions given on various internet webpages, e.g.
http://www.ukradioamateur.co.uk/foundation/html/f5-1-7.htm
as there were no instructions with the meter.
Unfortunately, there is no mention on the meter of any of the terms mentioned in internet
SWR articles, e.g., FWD, CAL, REF or SWR but only 'SET' and 'ROS': there is also a dial.
(it also has 'mod102' on the casing with TRAS and ANT for the antenna and radio
connections).
The meter window starts at 0 watt and goes up to 3 when the color changes to red
and then goes on up to 30
I have connected the meter up to my set (YAESU FT-2800M 2m FM Mobile/Base Ham
Radio) and pretuned antenna, and the meter needle never moves from 1 Watt, no
matter how much I change the dial. There is no mention of CAL or any other marking
that appears to be for calibration on the meter window.
I am, as will be gathered(!), wholly new to this subject: I have not attended any courses
as I am housebound although I am trying to understand the subject from books and
internet.
At this time, I do not intend transmitting and obtaining a license: I just want to understand
the basics.
Can anyone help with this SWR meter please? Many thanks.
David
the general instructions given on various internet webpages, e.g.
http://www.ukradioamateur.co.uk/foundation/html/f5-1-7.htm
as there were no instructions with the meter.
Unfortunately, there is no mention on the meter of any of the terms mentioned in internet
SWR articles, e.g., FWD, CAL, REF or SWR but only 'SET' and 'ROS': there is also a dial.
(it also has 'mod102' on the casing with TRAS and ANT for the antenna and radio
connections).
The meter window starts at 0 watt and goes up to 3 when the color changes to red
and then goes on up to 30
I have connected the meter up to my set (YAESU FT-2800M 2m FM Mobile/Base Ham
Radio) and pretuned antenna, and the meter needle never moves from 1 Watt, no
matter how much I change the dial. There is no mention of CAL or any other marking
that appears to be for calibration on the meter window.
I am, as will be gathered(!), wholly new to this subject: I have not attended any courses
as I am housebound although I am trying to understand the subject from books and
internet.
At this time, I do not intend transmitting and obtaining a license: I just want to understand
the basics.
Can anyone help with this SWR meter please? Many thanks.
David