Instruction manual

DDF1  28

COAXIAL CABLE PREPARATION AND ASSEMBLY

We’re getting very close to the end now! It is time to install the coaxial

“jumpers” that connect the antenna switcher board to the individual antenna

assemblies. To begin our preparation, locate the length of mini coax included

with your kit.

1. Cut four 13 inch pieces of cable to connect the switcher to each an-

tenna assembly.

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. Position a prepared

coax on the board so the

center conductor is over

the “J1” pad and the

tinned braid does not

touch the pad. Using

some of your longer trimmed component leads, insert one end into one

of the holes in the board on either side of the tinned braid of the coax

and carefully bend it over the coax and into the hole on the other side of

the coax.

4. Solder the coax center conductor to the circuit board. Make sure the

braid does not touch the center conductor connection.

5. Apply a little solder to the wire you formed over the braid. DO NOT

USE TOO MUCH HEAT WHEN ATTACHING THE BRAID, as this can

cause the center insulation of the cable to melt.

6. Form another wire over the insulated area of the coax and through the

holes on either side of the coax.

7. Be careful and don’t apply too much heat which can damage the

coax and cause a short to center conductor. Solder the two formed

wires to the top side of the board like you did the other components and

make sure there are no “bumps” on the back of the board since any sol-

der or protruding lead will prevent the board from sitting flat on a surface.

8. Determine the length of cable you need to connect the ANTINT board

to your receiver.

9. Using the length determined above, cut your own coax cable cut to

length , such as type RG58, to the “TO RADIO” connection on the

ANTINT board as described in steps 2, 3 and 4 above.

FINAL ANTENNA AND ANTINT ASSEMBLY

RG-174 Coax

Tinned Braid

Center Insulation

Center Conducto