Fishing Detector

[Mike]

Hiya folks - bit of a strange one here! I've bought a humminbird
smartcast (ref. http://www.humminbird.com/hb_Products.asp?ID=283 ):
for fishing but the radio range(433 MHz)
to the bank is just 100 ft and I wanted to stick in onto a model radio
controlled boat and so need to increase the range to a couple of
hundred yards or so. Do you think I could simply open the transponder
up, attatch an aerial and crank up the voltage a bit???

Any ideas would be helpful.

mk

 

[Ross Mac]

Hiya folks - bit of a strange one here! I've bought a humminbird
smartcast (ref. http://www.humminbird.com/hb_Products.asp?ID=283 ):
for fishing but the radio range(433 MHz)
to the bank is just 100 ft and I wanted to stick in onto a model radio
controlled boat and so need to increase the range to a couple of
hundred yards or so. Do you think I could simply open the transponder
up, attatch an aerial and crank up the voltage a bit???

Any ideas would be helpful.

mk

Not an answer to your post but a quick question as to what you are doing
here. Am I right in assuming that you want to send and RC boat out to help
you track fish?
Darn fish don't have a chance!!!...Ross

 

[Robert Miller]

Not an answer to your post but a quick question as to what you are doing
here. Am I right in assuming that you want to send and RC boat out to help
you track fish?
Darn fish don't have a chance!!!...Ross

As long as he does not add depth charges! But then that would be illegal.
For any hit and run fisherman in a hurry

Robert Miller

 

[Garrett Mace]

Not an answer to your post but a quick question as to what you are doing

here. Am I right in assuming that you want to send and RC boat out to help
you track fish?
Darn fish don't have a chance!!!...Ross

I'd go for the remote-controlled submarine, actually. Poke around on the
bottom, see the holes the fishes are hiding in, settle down on the lakebed
and actually watch the fish come out and nibble the bait. You could make it
look like a really big turtle.

Why aren't there any low-cost low-depth freshwater ROVs, anyway? Not much
more technology required than is put into a trolling motor and a video
camera. It doesn't have to weld, or salvage ships two miles down. Buoyancy
control could be a flexible container compressed or stretched by a servo. It
could probably be sold retail in the sub-$1000 range.

 

[Mjolinor]

Hiya folks - bit of a strange one here! I've bought a humminbird
smartcast (ref. http://www.humminbird.com/hb_Products.asp?ID=283 ):
for fishing but the radio range(433 MHz)
to the bank is just 100 ft and I wanted to stick in onto a model radio
controlled boat and so need to increase the range to a couple of
hundred yards or so. Do you think I could simply open the transponder
up, attatch an aerial and crank up the voltage a bit???

Any ideas would be helpful.

mk

You would probably achieve what you want with an antenna. There is loads of
info on the net about them, probably the ARRL site is favourite to start.

Be aware that (certainly in the UK) it is illegal to do this.

If you do choose to make an antenna then follow the instructions carefully
and if it says 15.5 cm that is what it means 15.6 or 15.4 will not do, they
are quite difficult to make becasue of the need for accuracy.

 

[Ross Mac]

As long as he does not add depth charges! But then that would be illegal.
For any hit and run fisherman in a hurry

Robert Miller

Depth charges...that's funny...then all you need is a net!

 

[Ian Bell]

You would probably achieve what you want with an antenna. There is loads
of info on the net about them, probably the ARRL site is favourite to
start.

Be aware that (certainly in the UK) it is illegal to do this.

OTOH you could increase the receiver sensitivity with a directional antenna
which would be quite legal in the UK.

Ian

 

[Mjolinor]

OTOH you could increase the receiver sensitivity with a directional antenna
which would be quite legal in the UK.

Ian

And probably a lot easier to do in terms of antenna design but the servo
control circuitry to keep the antenna pointed at the boat could be an
interesting project.

 

[Watson A.Name - Watt Sun, Dark Remover]

I'd go for the remote-controlled submarine, actually. Poke around on the
bottom, see the holes the fishes are hiding in, settle down on the lakebed
and actually watch the fish come out and nibble the bait. You could make it
look like a really big turtle.

Why aren't there any low-cost low-depth freshwater ROVs, anyway? Not much
more technology required than is put into a trolling motor and a video
camera. It doesn't have to weld, or salvage ships two miles down. Buoyancy
control could be a flexible container compressed or stretched by a servo. It
could probably be sold retail in the sub-$1000 range.

Typical "helpful" response thread - make every comment *except* the
one that's helpful. :-(


--
@@F@r@o@m@@O@r@a@n@g@e@@C@o@u@n@t@y@,@@C@a@l@,@@w@h@e@r@e@@
###Got a Question about ELECTRONICS? Check HERE First:###
http://users.pandora.be/educypedia/electronics/databank.htm
My email address is whitelisted. *All* email sent to it
goes directly to the trash unless you add NOSPAM in the
Subject: line with other stuff. alondra101 <at> hotmail.com
Don't be ripped off by the big book dealers. Go to the URL
that will give you a choice and save you money(up to half).
http://www.everybookstore.com You'll be glad you did!
Just when you thought you had all this figured out, the gov't
changed it: http://physics.nist.gov/cuu/Units/binary.html
@@t@h@e@@a@f@f@l@u@e@n@t@@m@e@e@t@@t@h@e@@E@f@f@l@u@e@n@t@@

 

[Ross Mac]

Typical "helpful" response thread - make every comment *except* the
one that's helpful. :-(


--
@@F@r@o@m@@O@r@a@n@g@e@@C@o@u@n@t@y@,@@C@a@l@,@@w@h@e@r@e@@
###Got a Question about ELECTRONICS? Check HERE First:###
http://users.pandora.be/educypedia/electronics/databank.htm
My email address is whitelisted. *All* email sent to it
goes directly to the trash unless you add NOSPAM in the
Subject: line with other stuff. alondra101 <at> hotmail.com
Don't be ripped off by the big book dealers. Go to the URL
that will give you a choice and save you money(up to half).
http://www.everybookstore.com You'll be glad you did!
Just when you thought you had all this figured out, the gov't
changed it: http://physics.nist.gov/cuu/Units/binary.html
@@t@h@e@@a@f@f@l@u@e@n@t@@m@e@e@t@@t@h@e@@E@f@f@l@u@e@n@t@@

About as helpful as your post!

 

[Garrett Mace]

Why aren't there any low-cost low-depth freshwater ROVs, anyway? Not
much

Typical "helpful" response thread - make every comment *except* the
one that's helpful. :-(

That's ALLOWED isn't it? ;-)

Lots of good ideas turn up along the path to something entirely different.
Most, probably.

 

[Ross Mac]

That's ALLOWED isn't it? ;-)

Lots of good ideas turn up along the path to something entirely different.
Most, probably.

Sometimes the posts are just in fun and off topic...I am probably guilty
more than most of off topic posts....Watson posts some good info and
probably didn't appreciate the humor...Oh well...cannot please all or any
for that matter...
The exchange of information here is appreciated, I believe, by many......and
thanks to all for that....Ross