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Findi Walkie Talkie w/ FM (not FSK)

L

Larry Perkins

Can anyone advise how I can tell if a walkie talkie uses FM or FSK? It
is not given in the sales info.

Without attempting to contact every manufacturer, and hope for a
reply, is there anyway I can determine this from the general specs, or
by price, or brand?

I am looking at the low end Midland models, for example.

Larry perkins
 
P

Phil Allison

"Larry Perkins"
Can anyone advise how I can tell if a walkie talkie uses FM or FSK? It
is not given in the sales info.


** I doubt there are any "walkie talkies" that use FSK.

What on earth make YOU think there are any ?

AM on the 27MHz band is the norm and FM elsewhere.



..... Phil
 
A

asdf

Can anyone advise how I can tell if a walkie talkie uses FM or FSK? It
is not given in the sales info.

It's very unlikely any walkie talkie would use FSK at all. Are you
talking about radios for voice communication, HAM radio stuff with
digital modes or RF modules usually employed in remote controls?
HAM radio, military or special gear aside, most (probably all) recent
walkie talkies use FM, some old CB ones (maybe airband VHF portables too)
would use AM instead.
 
L

Larry Perkins

H

hamilton

There is FSK, at least in Eurpoe. Please see these links:

http://en.wikipedia.org/wiki/PMR446

http://en.wikipedia.org/wiki/Digital_private_mobile_radio

How common is the protocol? IOW if one were to purchase the digital
version would this of necessity be described on the packaging?

And the feature would probably be restricted to high end business or
industrial models?

Anyone know for sure.

Larry

The OP asked if there was any way to tell if a walkie talkie used FSK.

The amount of advertising on the packages would be the first tell-tale sign.

It looks like these devices need to be switched into digital mode.

Second tell tale-sign.

In other words, RTFM.

don
 
P

Phil Allison

"Larry Perkins"
There is FSK, at least in Eurpoe. Please see these links:

http://en.wikipedia.org/wiki/PMR446

http://en.wikipedia.org/wiki/Digital_private_mobile_radio

How common is the protocol? IOW if one were to purchase the digital
version would this of necessity be described on the packaging?

And the feature would probably be restricted to high end business or
industrial models?

Anyone know for sure.


** You are posting from Australia - right ?

The license free requirements for UHF CB allow only certain frequencies
between 476 and 477 MHz.

http://en.wikipedia.org/wiki/UHF_CB

You will not find any dPMR radios on these frequencies.



..... Phil
 
H

holyhigh

Larry Perkins said:
Can anyone advise how I can tell if a walkie talkie uses FM or FSK? It
is not given in the sales info.

Without attempting to contact every manufacturer, and hope for a
reply, is there anyway I can determine this from the general specs, or
by price, or brand?

I am looking at the low end Midland models, for example.

Larry perkins

for Voice they use FM, Single Side Band Upper, Single side band lower, and
AM (the last three are used in the CB band) but walkie Talkies are in many
bands, which band do you have? GPRS is FM

But not FSK, that is digital, does your walkie talkie have a connection for
computer?
 
L

Larry Perkins

OK, it would seem the digital versions are rare, at least in the
current consumer market. Now I know. Thanks to all.

Larry
 
R

Robert Lacoste

Larry Perkins said:
There is FSK, at least in Eurpoe. Please see these links:

http://en.wikipedia.org/wiki/PMR446

http://en.wikipedia.org/wiki/Digital_private_mobile_radio

How common is the protocol? IOW if one were to purchase the digital
version would this of necessity be described on the packaging?

And the feature would probably be restricted to high end business or
industrial models?

Anyone know for sure.

Larry

Hello Larry,
Here in Europe the 446MHz digital walkie/talkies are very common, I guess
even more common than their analog versions. Prices start at around 50Eur
for a pair (70usd ?), so they are definitively not limited to high end
applications. The marketing brochures talk about a 5 to 10km range, I guess
that 1 or 2km would be a more reasonnable assumption... Motorola is one of
the manufacturers.
Yours,
Robert
 
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