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Author Topic: Is there an SSB crank radio?  (Read 700 times)
OTTAVIO
Member

Posts: 16




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« on: July 09, 2008, 09:41:36 AM »

Hello,

I wonder if anybody knows of a crank radio with ssb. Alternatively is it possible to fit a crank on the Ten_tec 1253? It requires two 9 volts batteries, can  crank generate such voltage?

Thanks

Ottavio
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WB6BYU
Member

Posts: 13007




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« Reply #1 on: July 10, 2008, 12:26:27 PM »

I've heard lots of cranks talking on SSB...


Do you want to transmit or just receive?

I've operated my Ten-Tec Argosy transceiver at 5 watts output
while cranking it, but that was an external bicycle generator
delivering 12 volts output.  The problem with transmitting
SSB while cranking was the "engine noise" on the signal
(my panting and puffing while I pedaled.)

Generally any radio can be powered by a crank generator
that provides the necessary supply voltage and current.
Since crank generators aren't very common, often it is
easier to use whatever generator you can find and convert
the output to charge a battery, then power the radio
from the battery.  That way you don't have to crank all
the time you are listening to it.

(I remember people building bicycle generators as a way
to ration the amount of time their kids spent watching
TV:  it only worked when they were pedaling hard enough.)


Beyond that, perhaps if you give us more information
we can provide better advice.  Do you want the crank
to power the radio directly, or to charge a battery so
you don't have to crank all the time you are listening?
What frequencies/bands do you want to be able to listen
to?  Are you going use it for transmitting or just for
receive?  Does it have to be a commercial hand-crank
generator, or are you willing to build your own?  (Basically
any DC motor will act as a generator when the shaft is
turned.  The key is to get the right motor and the right
gearing so it will put out the desired voltage and current
at a convenient cranking speed.)


Note:  when I say a bicycle generator, I'm referring to
a stationary bicycle with a generator driven by the
pedals.  I realize that this term is also used for the
small generators that clip on a bicycle to run the lights
at night. The latter type of generator could be used to
run a receiver, too, of course - most that I've seen
put out 6 volts.
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OTTAVIO
Member

Posts: 16




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« Reply #2 on: July 11, 2008, 08:54:20 AM »

Thanks for your reply.

Sorry, I wasn't too accurate. I am looking for a receiver, the bands I am interested are the 80, 40 and 20 meters Ham Bands.

There are a lot of AM shortwave crank-operated radios, I have even found one at Lidl's ( a cheap supermarket) but I haven't seen any with SSB.

Alternatively I was thinking of building the Ten Tec regen receiver 1253 and fit a crank inside, so I understand I should fit two 9v rechargeable batteries and connect the crank to them? Is that correct? If so how big is the mechanics of the crank and would it fit the 1253?

I hope I have given enough information.
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AB3EO
Member

Posts: 25




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« Reply #3 on: July 11, 2008, 09:45:51 AM »

Grundig / Eton, Kaito, and Freeplay have wind-up radios that cover the SW band. Some have continuous coverage that includes 80, 40, and 20. I did not see any mention of SSB. Does not mean it’s not there.  Look at Google results for “windup radio”

Rich
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KB2SEO
Member

Posts: 20


WWW

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« Reply #4 on: July 15, 2008, 11:23:31 AM »

I know of a few cranks on HF...Does that count?

(Had to say it!)

there is a "rescue radio that the USCG and NAVY used a while back that may be able to be worked to use on the Ham band(s)- Trick is to find it. It came in a watertight case, and you could float on it. i guessonce you got to Gilligan's bungalow- you could get on the air
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