Here I use a basic 8 port antenna selector designed to my specifications by
a ham friend of mine. The circuit boards are professionally etched and are
equipped with chassis mount "F" female connectors. The single, 8 port
boards can be daisy chained for 16, 24, etc. antennas selections.
At this QTH the Beverage antennas are remotely controlled via the Green
Heron 2 GHz system at a distance of nearly 1/2 mile.
Currently the system is comprised of 19 separate antennas, each RF split 3
ways, with each split antenna selection fed to one of three separate groups
of three of the above described boards.
Results are at three operating positions each op has independent, totally
separate control and visual readout of the direction and labeling of any of
the 19 antennas.
The visual is provided by a programmable compass rose on the computer
display screen. Selection is by either clicking with the mouse which
provides instant, opposite direction selection for an example, or via a USB
rotary switch for normal step by step selection of the antennas.
I have no connection with Green Heron other than I am in love with the
upgrade of control capability their system has provided for my remote
Beverage farm. It is so nice to have retired the old DTMF and basic CPU
type controllers and control lines.
73, and good luck de Milt, N5IA
-----Original Message-----
From: W0UCE
Sent: Wednesday, December 28, 2011 8:29 AM
To: topband@contesting.com
Subject: Topband: RX antenna switch
A new computer controlled RX or TX Antenna switch will be on the market in
about a month. It will control up to 10 antennas or any other contact
closure selection device with the click of a mouse. Users will be able to
assign GUI designators to each port. Example for beverage selection the
user may want to designate:
NE, North East, EU, 45 or any other designator of choice... I have a
prototype at my QTH and am doing field trial now.
Details will be announced on Top Band and other venues.
73,
Jack
_______________________________________________
UR RST IS ... ... ..9 QSB QSB - hw? BK
-----
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2012.0.1901 / Virus Database: 2109/4707 - Release Date: 12/27/11
_______________________________________________
UR RST IS ... ... ..9 QSB QSB - hw? BK
|