Advertisement
2. "Prep" each of the coaxial cables as shown in the diagram. Be careful
not to use too much heat when "tinning" the braid of the coax as this
could damage the center insulating shield.
3. Using some of your longer scrap resistor leads bent into a "U" shape,
hold the coax into position and slide the "jumpers" through the provided
mounting holes. These "jumpers" can be soldered on the bottom side of
the board to hold the coax into position for final soldering.
4. Solder the coax center conductor to the circuit board, then apply a
small fillet of solder to the braid. DO NOT USE TOO MUCH HEAT
WHEN ATTACHING THE BRAID, as this can cause the center insulation
of the cable to melt.
FINAL ANTENNA AND SWITCHER ASSEMBLY
Locate the antennas and their hardware. Now we get to put together the an-
tennas themselves. To create the necessary holes for both the mounting
screw as well as the cable inputs, take your soldering iron and melt a "half
moon" shape in the side of the lid to allow clearance of the coaxial cable.
1] Use the following picture as a guide to construct the antenna. Place the
screw up through the bottom of the antenna PC board, then screw the
nut down from the top to hold it in place. Slide one of the internal tooth
washers over the screw and place the whip antenna onto that, screwing
it down tightly. Once all of the hardware is securely attached, you may
install the adhesive backed magnet Material to your "home brew" an-
tenna. The magnet will "hang over" the circuit board slightly but do not
trim off the excess. The magnets will stay in place more securely if you
leave the excess in place. Now we're in business!
A n te n n a A s s e m b ly D ia g ra m
# 4 - 4 0 s c r e w
DDF1 • 26
N u t w ith w a s h e r o n to p
P la s tic C a p
P e e l a n d s tic k m a g n e t
Hide quick links:
Advertisement
