Darnell submarine

[Paul Davenport]

Greetings,

I have just restored an old Darnell submarine, and for those of you who have
given me advice in that regard, thank you sincerely. I took it...it worked.

The pond where I sail contains salt water, and the problem is of course
getting a radio signal through that to control the boat. I have run the
receiver antennae up through the hull and around the conning tower, in an
attempt to retain control at least whilst the boat is on the surface. Better
might be to double its length and run it from front to back of the entire
sub?

It currently runs on 27MHz - would 40MHz FM give better penetration through
the salt water? Can I 'beef up' my TX?

All correct answers as usual will receive a virtual beer.

Paul

[Malcolm Cowie]

"Paul Davenport" <Davers00@btinternet.com> wrote in message news:<bou1oq$a14$1@hercules.btinternet.com>...
> Greetings,
>
> I have just restored an old Darnell submarine, and for those of you who have
> given me advice in that regard, thank you sincerely. I took it...it worked.
>
> The pond where I sail contains salt water, and the problem is of course
> getting a radio signal through that to control the boat. I have run the
> receiver antennae up through the hull and around the conning tower, in an
> attempt to retain control at least whilst the boat is on the surface. Better
> might be to double its length and run it from front to back of the entire
> sub?
> n
If you alter the lenght of your reciever antennae your will probably
not be able to operate as the areal lenght is set to correspond to
your radio wave lenght.To get the right answer post it on The
SubCommittee message board.
Malcolm NZ

[tater schuld]

"Paul Davenport" <Davers00@btinternet.com> wrote in message
news:bou1oq$a14$1@hercules.btinternet.com...
> Greetings,
>
> The pond where I sail contains salt water, and the problem is of course
> getting a radio signal through that to control the boat. I have run the
> receiver antennae up through the hull and around the conning tower, in an
> attempt to retain control at least whilst the boat is on the surface.
Better
> might be to double its length and run it from front to back of the entire
> sub?

hmmmmm. if you can fold it exactly in half, as the other poster said. better
yet (if room) is to fold it exactly in half, tie a wire to the ground an do
the exact same thing to it pointed in the opposite direction and you have a
folded dipole. If you cant, do a loose coil (think spiral notebook wire, but
with more space between coils)

remember that antennas on both the reciever and transmitter "should" be
oriented in the same direction, if the antenna is along the subs length, you
should also have the transmitters antenna horizontal

> It currently runs on 27MHz - would 40MHz FM give better penetration
through
> the salt water? Can I 'beef up' my TX?

get your tech liscence and convert it to the ham bands. test aint that hard

--
Tater
President of MARS Club (NAR #660)
www.treece.org/mars.htm
KC9ESF
NAR #79654 L1
AMA #747769
EAA #703312
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