Topband: Frequency Dependant Remote antenna switching

[Larry (K8UT)]

For those interested in a Do-It-Yourself project that supports 
Band-Drive or Frequency-Driven antenna control, the freeware program 
FreqEZ runs as a Windows Console that connects via ethernet or WiFi to a 
Raspberry Pi Controller and antenna selector.

In Frequency-Driven mode, you define up-to 50 frequency segments that 
control any combination of 16 output relays. For example, if you use 
four narrow-bandwidth verticals to cover the entirety of the 75/80 meter 
band, you would configure FreqEZ to engage the preferred relay(s) in 
each of four frequency ranges. All configuration and definitions are 
done in software - no switches/jumpers/diodes/solder bridges. 
Communication is done with UDP and TCP packets - no messy serial ports.

You can read more about FreqEZ here:
http://hamprojects.info/freqez/

Or watch a short video here:
http://hamprojects.info/wp-content/HamProjects/FreqEZ/FreqEZ%20Overview_Video.mp4?_t=1540736190

-larry (K8UT)

------ Original Message ------
From: "VE6WZ_Steve" <ve6wz at shaw.ca>
To: "Topband" <topband at contesting.com>
Sent: 2019-02-26 14:37:24
Subject: Topband: Frequency Dependant Remote antenna switching

>After posting my video link about TX and RX direction switching, I have received some emails asking about how I switch my various transmit antennas.
>
>This morning I built another video that describes my frequency dependant switching system that uses the Station Master band decoder.
>What might be unique about the system I use is the requirement to switch multiple frequency segments within each band in order to deal with some of my narrow bandwidth antennas.  I require more than just band switching.
>I discuss the capabilities of the unit, how it is programmed and how I have distributed the control lines to the various antennas.
>
>Perhaps this might give some ideas to others with complex antenna switching requirements or those planning a remote.
>
>https://youtu.be/n2yR4AU0lkA <https://youtu.be/n2yR4AU0lkA>
>
>73, de steve ve6wz
>_________________
>Searchable Archives: http://www.contesting.com/_topband - Topband Reflector