VE6AB Technical
Found It
For some time I thought about a type of case that I could place my various Fox Transmitters in, keeping them safe while they are stuck under a rock or under a footbridge as in this photo.
It was as simple as choosing a Pelican case that had enough space inside to place any one of my transmitters in depending on how much power I needed on any particular day.
The conversion was as simple as deciding where I wanted the antenna to be mounted, and then I drilled a hole through the lid of the Pelican case sized for a panel mount female BNC.
I then took a 6" length of RG-174U coax and installed a male SMA connector on one end of the coax, and I then stripped back 3/4" on the other end of which I then soldered the center conductor and shield in place to the BNC mounted in the lid of the Pelican Case.
Once that was done, it's as simple as attaching the SMA connector to the transmitter, turning it on, and then closing the lid.
Also, the holes at either end of the pelican case allow for the use of a cable lock to secure the case keeping it from being moved or removed.
As far as the antenna up top, it depends on what I may be planning on as far as what I have in mind for that particular day, as I can select from any number of antennas that reside in my antenna arsenal, which could be my recently built 2 meter 1/2 wave dipole as seen in the photo, or possibly a telescopic 1/2 wave 2 meter antenna, or a Comet BNC-24, or....well you get it, whatever the need is for the hunt at hand.
If you look close at the display on the Icom R5 communications receiver, you can see that it is tuned to the fox-hunt frequency of 146.565MHz, the frequency that is programed in to the transmitter secured in the pelican case on this day, and is attached to the dipole via the BNC mounted in the lid.
I have approximately 6' of connecting coax allowing the antenna to be mounted in a vertical or horizontal position some distance away from the transmitter mounted in the pelican case and placed out of sight as seen here.
Since using this setup for the past while, I am more than pleased with how well it has worked out.
On another note, the fox transmitter you see in the insert photo of the interior of the pelican case is very cool, as it will accept commands sent via DTMF tones from an HT or any transceiver with a DTMF pad.
Amongst the many commands it accepts and implements, the transmitter can be turned on or off remotely.
Click on the photo for a closer look.....
How to build the 1/2 wave 2 meter dipole antenna as seen in the photo.....
http://www.jerryclement.ca/MachineShop/Antenna-Werks/i-rhPhTb7
- No Comments