Broken antenna on RC car

[pfjw@aol.com]

On Dec 18, 7:12 am, "William Sommerwerck" <grizzledgee...@comcast.net>
wrote:

When I visited a friend in Texas some years back with my R/C submarine, we
managed to get it to dive (in a swimming pool) to a point well beyond the
maximum spec'd radio range, and it got stuck (even though the "descent
propeller" had shut off), because it didn't have enough bouyancy to rise
from that depth!

You need a Sub-Saver device. It is a relay that at a no-signal
condition will either blow a ballast tank or set the planes to full-up/
full speed depending on how it is installed.

Most R/C subs rely on internally generated heat to maintain positive
pressure inside the hull, but a clever builder (if space is available)
will install a shrader-valve and pressurize the hull a bit before
putting the sub in the water. I can get a reliable 6' of depth under
most conditions. By that, I mean have full controls and all
functions.

Remember the principle of the Cartesian Diver... that is where many
sub operators run into trouble with negative bouyancy. Remember,
sinking a submarine is well within design parameters, and almost
anyone can do it - the trick is "unsinking" it afterwards.

Peter Wieck
Wyncote, PA

 

[William Sommerwerck]

<pfjw@aol.com> wrote in message
news:03502173-8995-476d-8e0a-d38643400a77@e6g2000prf.googlegroups.com...

On Dec 18, 7:12 am, "William Sommerwerck" <grizzledgee...@comcast.net
wrote:

When I visited a friend in Texas some years back with my R/C submarine,
we managed to get it to dive (in a swimming pool) to a point well beyond
the maximum spec'd radio range, and it got stuck (even though the
"descent propeller" had shut off), because it didn't have enough bouyancy
to rise from that depth!

You need a Sub-Saver device. It is a relay that at a no-signal condition
will either blow a ballast tank or set the planes to full-up/full-speed
depending on how it is installed.

This was a commercial toy (I still have it), and nowhere remotely of that
sophistication.

 

[Amin]

I understood.

But I have a different problem.

I have got a RC car and control unit. Both are working independently but how to know and tune frequency of transmitter and receiver so that with a remote my car work?

 

[William Sommerwerck]

"Amin" wrote in message
news:eac0febb-6a2f-44ec-b493-b361eab6e183@googlegroups.com...

I have got a RC car and control unit. Both are working
independently but how to know and tune frequency of
transmitter and receiver so that with a remote my car work?

How do you know /either/ is "working", if the transmitter won't control the
car?

The transmitter is probably crystal-controlled, so there's nothing to adjust.
Similarly, the receiver is either crystal-controlled, or is sufficiently
broadband to pick up the transmitter.

If they won't work, then you likely have a problem that has nothing to do with
frequency settings.

 

[Michael Black]

On Wed, 9 Jul 2014, Amin wrote:

I understood.

But I have a different problem.

I have got a RC car and control unit. Both are working independently but
how to know and tune frequency of transmitter and receiver so that with
a remote my car work?

You're replying to a thread from December 2007.

You haven't quoted any of what you are replying to. You "understand" yet
we have no idea what you claim to understand, then you have a different
problem, as if this is a continuation of a previous question. Yet it's
not.

If you have a question, don't dig out a 7 year old post and then post what
seems to be nonsense because you aren't even participating in that thread,
just tacking onto it. This has nothing to do with the previous thread,
and trying to figure out what that is about just wastes our time.

Michael

 

On Saturday, 15 December 2007 02:08:48 UTC+13, Mike S. wrote:

I have a 14 y/o RC car that has a broken antenna on the remote. Is
there a way to fix that? The car won't work without it. The antenna is
like the ones that are on boomboxes. There was a small piece of metal
that kept it attached to the remote and the piece broke off.

I tried attaching wire to the remote and the car barely worked. Is
there a specific kind of wire I need?

I could probably buy a better car than this one but I don't like
throwing things away if they can be fixed, unless it costs too much to
fix it.

just the top of my one snapped off. will it still work???

 

[pfjw@aol.com]

On Sunday, June 3, 2018 at 9:16:52 PM UTC-4, leow...@gmail.com wrote:

On Saturday, 15 December 2007 02:08:48 UTC+13, Mike S. wrote:
I have a 14 y/o RC car that has a broken antenna on the remote. Is
there a way to fix that? The car won't work without it. The antenna is
like the ones that are on boomboxes. There was a small piece of metal
that kept it attached to the remote and the piece broke off.

I tried attaching wire to the remote and the car barely worked. Is
there a specific kind of wire I need?

I could probably buy a better car than this one but I don't like
throwing things away if they can be fixed, unless it costs too much to
fix it.

just the top of my one snapped off. will it still work???

Yes. The antenna is 'cut' in the middle of the overall range - an inch-or-three will not matter.