[TowerTalk] screwdriver antenna

[Jim Lux]

At 08:09 AM 7/16/2006, N2vot at aol.com wrote:
>I'm looking for a copy of the manual for the BB3 as well as some
>advice.....any help??!! PLEASE!!


I have one of these beasts.  The manual doesn't tell you much.  They're not 
a very complex device.

1) Don't put 12V on the motor, it will burn out.  The switch box has a big 
resistor in series to drop the voltage.

2) With a 10ft whip, it won't tune 160, but will tune all other bands.

3) The "matching network" is a 1:4 transformer with a fair amount of 
leakage capacitance, so as the frequency gets higher, the transformer fades 
out of the system.

4) Good ground to the car body is essential.

What do you need to know?