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Fox Controller V 3, fully
compatible with International Hunts (UPDATED
Design by Francois VE2JX
with some help from Jacques VE2EMM
8 selectable ID codes, "MO", "MOE", "MOI", "MOS",
"MOH", "MO5", "MON", "MOD".
For 1 minute, it continuously sends the selected
ID code at 8 WPM and terminates by a fast "DE hider's call letters".
Cycle times are: continuous to 7 minutes, depending
on the numbers of FOXES in the hunt. 5 FOXES and 5 minutes is the international
standard. More or less FOXES can be used for practice.
Delayed start up to 3 1/2 hour, in 1/2 hour increment,
all FOXES can be synchronized by a single PB.
High accuracy timing.
MCW for 2 meters, straight key CW for 80 meters.
Keys HTs and positive PTT transmitters.
The Hider's call letters can be loaded in the EEDATA
memory permanantly and changed just by setting switches.
Power consumption is less than 3 mA.
The indicating LED shows 1- Delayed start timing,
2- Incorrect combination of time and # of FOXES, 3- CW keying being done.
1 Second of dead time between each transmission.
8 Seconds of time for the call letters and the portable
Pre-keying of the TX 1 second before the start of
Written in "C" for ease of modification.
A version is availlable for the PIC16F84A,
one for the lower cost PIC16F628. Both microprocessors
can be interchanged with the proper software. The PIC16F628 cost less than
4$US in unit quantity from DK.
Information text on
Schematic diagram of the
International Hunt FOX BOX. (33K) GIF
V3, R5 is removed from pin 18 and placed on pin 17 of the PIC, this mod
eleminate a glitch while timing the delayed start on an 80 meter Fox.
Schematic of the synchronizing
Location of the components on the PCB. (32K)
PCB V 3. (73K) 300 dpi GIF image.
The PCB is also available from FAR
Download the source code in C and Hex file ctrsoft.zip
It is for ham radio operators only.
I have a version that plugs in a GE Master Exec II exiter for 350 mW
of output. This exiter only requires a Xtal and retuning.
All material on this page is distributed on a
WYSIWYG basis and as such I can't take any responsibility for the use of
this design and its results. However in saying this it must also be mentioned
that every effort has been taken to ensure that it as error free
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Many thanks to Al Waller K3TKJ for graciously
hosting my web pages on QSL.NET.