[Antennas] Power Handling of a Dubber Duckie
Deon Erwin
Deon Erwin" <[email protected]
2004年2月28日 07:04:15 +0200
Bill
Make yourself a portable 2m antenna:
Solder a 1/4 wave of stiff copper wire or brass rod into a PL259 plug and
attach it to the radio via a 90 degree elbow connector.
Make a counterpoise/radial by cutting a 1/4 wave piece of insulated,
stranded wire and removing a few millimetres of insulation from one end.
Insert the cleaned wire strands between the threads of the PL259 and the
elbow as you screw the two connectors together. The counterpoise should
make a firm connection and lies on the table behind the radio. The
counterpoise is not essential, but will improve performance.
This antenna is much more efficient than a rubber duck and should give good
results. You can even bend the antenna in half and straighten it again for
operating, if you have limited packing space.
I also use a similar counterpoise when operating my handheld in a fringe
area. The counterpoise attaches to the thread of the rubber duck connector
and hangs down over my hand.
Deon ZS1ZL
----- Original Message -----
From: "Bill Roberts" <[email protected]>
To: "Antennas" <[email protected]>
Sent: Sunday, February 22, 2004 11:05 PM
Subject: [Antennas] Power Handling of a Dubber Duckie
I plan to borrow the rubber duckie antenna provided with my FT 817 with
another rig (IC 706 MKII... not the G) on a business trip. The rig puts
out up to 20 watts on 2 meters. Does anyone have an idea as to how much
power one of these antennas can handle? I can reduce output, of course.
The building I'm going to be living in is pretty RF tight so I'll need all
the power I can get.
Thanks.
Bill / K8DXX