"DougSlug" wrote in message
...
"PowerHouse Communications" wrote in message
...
A lot of answers, none worth a damn...

A "regular scanner" CAN receive the signals, but you won't be able to
listen
to the conversations worth a damn... A "regular scanner" generally does
not
have WFM reception, therefore, the conversations will cut in and out
and/or
get distorted because of this. In order to actually receive an
intelligible
signal your scanner would have to have WFM reception.

Not all 900 MHz cordless phones utilize WFM, so a scanner that only offers
NFM may still be useful for this purpose.

This is generally only found on the higher-end scanners.

I'm not sure what you would consider "higher-end", but there are plenty of
"regular" scanners that have WFM.

Of course, if the signal is digital, you aren't going to hear anything
anyway, no matter what kind of scanner you have...

True enough, but digital is not as commonly found on 900 MHz phones. 2.4
GHz phones probably more commonly use digital modulation.

You can include your answer among those that are "not worth a damn".



If you off tune a WFM signal on a NFM receiver it will be intelligible
enough.

"Jim" wrote in message
...

"DougSlug" wrote in message
...
"PowerHouse Communications" wrote in message
...
A lot of answers, none worth a damn...

A "regular scanner" CAN receive the signals, but you won't be able to
listen
to the conversations worth a damn... A "regular scanner" generally does
not
have WFM reception, therefore, the conversations will cut in and out
and/or
get distorted because of this. In order to actually receive an
intelligible
signal your scanner would have to have WFM reception.

Not all 900 MHz cordless phones utilize WFM, so a scanner that only
offers NFM may still be useful for this purpose.

This is generally only found on the higher-end scanners.

I'm not sure what you would consider "higher-end", but there are plenty
of "regular" scanners that have WFM.

Of course, if the signal is digital, you aren't going to hear anything
anyway, no matter what kind of scanner you have...

True enough, but digital is not as commonly found on 900 MHz phones. 2.4
GHz phones probably more commonly use digital modulation.

You can include your answer among those that are "not worth a damn".



If you off tune a WFM signal on a NFM receiver it will be intelligible
enough.


While I'm in this thread I'll just ask. Is there anyone working on software
to support real time demodulation of digital cordless signals?

"DougSlug" wrote in message
...

Not all 900 MHz cordless phones utilize WFM, so a scanner that only offers
NFM may still be useful for this purpose.

I'm not going get into some huge debate or such crap, so:
You are somewhat corect, not all, but MOST...


I'm not sure what you would consider "higher-end", but there are plenty of
"regular" scanners that have WFM.

Generally anything costing you more than $150 to $200, and that includes
Trunk Tracking, I would classify as "higher-end". You won't find WFM on the
majority of (if any) "regular" scanners.

You can include your answer among those that are "not worth a damn".

I think yours grabs that category a little better than mine. Mine
contributed useful information, yours was just there to start an argument...

Mine contributed useful information, yours was just there to start an
argument...

Whatever, dude. One man's trash is another man's treasure.

2.4 GHz phones probably more commonly use digital modulation.
-------------------------------------------------

When I was at Best Buy recently, they had a LOT of different me of 2.4
GHZ corless phones. and everyone of them was analog!!!!!!

they even speciicy said analog on the actual boxes and signs.

The one 2.4 GHZ model they had that did say "digital" turned out to be
analog. The stated "digital" was referring to the built-in answering
system being digital, not the regular converstations.

I did see a few digital 2.4 GHZ cordless phones at Wal-Mart, but even
most of the 2.4 GHZ ones there were analog.

so most 2.4ghz models are indeed analog.

Now the 5 GHZ cordless phones I've seen both places ( I think 5.8 GHZ,
although I might be off on frequency on these ones) did indeed say
digital on almost everyone of them I saw if not on everyone I saw.

wrote in message
...
2.4 GHz phones probably more commonly use digital modulation.
-------------------------------------------------

When I was at Best Buy recently, they had a LOT of different me of 2.4
GHZ corless phones. and everyone of them was analog!!!!!!

they even speciicy said analog on the actual boxes and signs.

The one 2.4 GHZ model they had that did say "digital" turned out to be
analog. The stated "digital" was referring to the built-in answering
system being digital, not the regular converstations.

I did see a few digital 2.4 GHZ cordless phones at Wal-Mart, but even
most of the 2.4 GHZ ones there were analog.

so most 2.4ghz models are indeed analog.

Now the 5 GHZ cordless phones I've seen both places ( I think 5.8 GHZ,
although I might be off on frequency on these ones) did indeed say
digital on almost everyone of them I saw if not on everyone I saw.




There are a LOT of analog phones around here! The sales pitch is "Digital
Secure" of course referring to the code passed between the handset and the
base !

Scan 902 to 904...

wrote in message
oups.com...
I know it is not legal but can a regular scanner that covers 900 mhz
listen to cordless phone conversations?

I have two wireless phones and NO scanner can receive one is a frequency
hopper, using digital modulation that covers all of the 902-928 MHz band
five times a second, and the other one is a spreadsprectrum system, sounds
like noise when received on a analog receiver in the wide or narrow band
mode. In other words forget about receiving it.




"Jim" wrote in message
...
Scan 902 to 904...

wrote in message
oups.com...
I know it is not legal but can a regular scanner that covers 900 mhz
listen to cordless phone conversations?

Secure unless someone has a base station that uses an identical chipset
and forces it into receive mode. This does require some tinkering, but
it can be done. Don't kid yourself, the FHSS and DSSS technology used by
cordless phone manufacturers are not designed for security, they are
just basic chipsets with a minimum of support components. And the
advertised 64 bazillion security codes have nothing to do with the
sequence, it's only for the off hook negotiation (aka: line seizure) and
ring triggering on an inbound call. Remember, a lot of those SS units
still have a 'channel' button, and there's only 10 to 25 'channels' on
these things. That would point to a limit of 10 to 25 spread patterns.
Splurge the $19 at Target and buy a popular unit and dig into it,
there's not a lot in there.

B.



SteveJ wrote:
I have two wireless phones and NO scanner can receive one is a frequency
hopper, using digital modulation that covers all of the 902-928 MHz band
five times a second, and the other one is a spreadsprectrum system, sounds
like noise when received on a analog receiver in the wide or narrow band
mode. In other words forget about receiving it.




"Jim" wrote in message
...

Scan 902 to 904...

wrote in message
groups.com...

I know it is not legal but can a regular scanner that covers 900 mhz
listen to cordless phone conversations?

My point is a scanner would not pick them up this waas the topic.

"bob" wrote in message
.. .
Secure unless someone has a base station that uses an identical chipset
and forces it into receive mode. This does require some tinkering, but it
can be done. Don't kid yourself, the FHSS and DSSS technology used by
cordless phone manufacturers are not designed for security, they are just
basic chipsets with a minimum of support components. And the advertised 64
bazillion security codes have nothing to do with the sequence, it's only
for the off hook negotiation (aka: line seizure) and ring triggering on an
inbound call. Remember, a lot of those SS units still have a 'channel'
button, and there's only 10 to 25 'channels' on these things. That would
point to a limit of 10 to 25 spread patterns. Splurge the $19 at Target
and buy a popular unit and dig into it, there's not a lot in there.

B.



SteveJ wrote:
I have two wireless phones and NO scanner can receive one is a frequency
hopper, using digital modulation that covers all of the 902-928 MHz band
five times a second, and the other one is a spreadsprectrum system,
sounds like noise when received on a analog receiver in the wide or
narrow band mode. In other words forget about receiving it.




"Jim" wrote in message
...

Scan 902 to 904...

wrote in message
egroups.com...

I know it is not legal but can a regular scanner that covers 900 mhz
listen to cordless phone conversations?