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Hey all,

I sold my truck with the 102 inch whip....I had the fc-40 about 3
inchis away from the inside lug of the ball mount so it was perfect
for 10 gauge wire from the fc-40 lugs to the ant.

Now I cannot drill into my (new) Olds Bravada, so I need to figure
another way.

Can I cut off the end of a 15ft coax, wire it to the tuner and
connect the other end to a pl259 mount for the whip, off the bumper
sor something?

Didn't think I could use a coax.

Also, what if I used a 4:1 balun in reverse to accept the wires from
the tuner and adapt them to the coax to make the run over to the
whip?

Can a balun be used in reverse? Could use it in my shack to attach
attick mounted slinky to the tuner.

Greg
W0GAN
Just a dumb general.

Greg:

Don't use coax to connect your tuner to the antenna - the grounded
shield acts like a capacitor to ground and your tuner won't 'tuner'.

You need to make the wire from the lug to the whip as short as
possible - have you considered mounting the FC-40 outside the
vehicle?

You can use an 4:1 unun or an autotransformer in reverse- check out
K0BG's site at . I have used an
autotransformer on an powdered iron toroid core on my FC-40 to get
my 102" whip down to 60 meters, although I lost some S units on
recieve on higher bands.

Jay
W6SH



--- In YaesuTuner@..., "r0de_runr" <r0de_runr@y...>
wrote:

Hey all,

I sold my truck with the 102 inch whip....I had the fc-40 about 3
inchis away from the inside lug of the ball mount so it was

perfect

for 10 gauge wire from the fc-40 lugs to the ant.

Now I cannot drill into my (new) Olds Bravada, so I need to figure
another way.

Can I cut off the end of a 15ft coax, wire it to the tuner and
connect the other end to a pl259 mount for the whip, off the

bumper

sor something?

Didn't think I could use a coax.

Also, what if I used a 4:1 balun in reverse to accept the wires

from

the tuner and adapt them to the coax to make the run over to the
whip?

Can a balun be used in reverse? Could use it in my shack to

attach

attick mounted slinky to the tuner.

Greg
W0GAN
Just a dumb general.

As with any antenna, Just try it. Let us know what happens. Oh, use
low power to start.

--- In YaesuTuner@..., "r0de_runr" <r0de_runr@y...> wrote:

Hey all,

I sold my truck with the 102 inch whip....I had the fc-40 about 3
inchis away from the inside lug of the ball mount so it was perfect
for 10 gauge wire from the fc-40 lugs to the ant.

Now I cannot drill into my (new) Olds Bravada, so I need to figure
another way.

Can I cut off the end of a 15ft coax, wire it to the tuner and
connect the other end to a pl259 mount for the whip, off the bumper
sor something?

Didn't think I could use a coax.

Also, what if I used a 4:1 balun in reverse to accept the wires

from

the tuner and adapt them to the coax to make the run over to the
whip?

Can a balun be used in reverse? Could use it in my shack to attach
attick mounted slinky to the tuner.

Greg
W0GAN
Just a dumb general.

Sure can, I use a 1:1 balun with about 100mm of wire connecting the
ground and antenna terminals to the balun, then run about 2 metres
of co-ax to a spring base with a helically wound HF whip mounted on
it.

Tunes everything except for 160m (not suprising), to use low band I
use another piece of wire connected to the top of the whip and with
the other end chucked up into a nearby tree. Bit hard to do mobile
though ;-).

It is probably better to use a 4:1 in theory, but I thought it would
not matter so much with such a short balanced line, and it turned
out to be true.

I had promised to take a few photos, I must get around to it.

Peter
VK4TGV

--- In YaesuTuner@..., "r0de_runr" <r0de_runr@y...>
wrote:

Hey all,

I sold my truck with the 102 inch whip....I had the fc-40 about 3
inchis away from the inside lug of the ball mount so it was

perfect

for 10 gauge wire from the fc-40 lugs to the ant.

Now I cannot drill into my (new) Olds Bravada, so I need to figure
another way.

Can I cut off the end of a 15ft coax, wire it to the tuner and
connect the other end to a pl259 mount for the whip, off the

bumper

sor something?

Didn't think I could use a coax.

Also, what if I used a 4:1 balun in reverse to accept the wires

from

the tuner and adapt them to the coax to make the run over to the
whip?

Can a balun be used in reverse? Could use it in my shack to

attach

attick mounted slinky to the tuner.

Greg
W0GAN
Just a dumb general.