On 7/19/07 4:24 PM, in article ,
"John Navas" wrote:

On Thu, 19 Jul 2007 14:33:43 -0700, Jeff Liebermann
wrote in
:

On Thu, 19 Jul 2007 10:38:21 -0400, "Dana" wrote:

Why bother? Analog cell phones are going away on Valentine's Day
2008.
http://dialzero.blogspot.com/2007/06...e-to-end-after
.html

The FCC does not require that analog service be turned off. Only that
carriers are not required to continue analog service past that date.
A good number of rural areas will probably continue to use Analog cellualr
service for a few years after that.

True. Analog will probably dribble along for quite a while. ...

I seriously doubt it. All the carrier people I know are chomping at the
bit to turn it off, as noted in public statements.

On the other hand, in many smaller communities, analog may need to be
retained until digital capability is ready to take up the business.

AT&T originally gave us notice that our analog service would be terminated
on a certain date, and then modified their statement to say the analog
turn-off would be spread over a long time. They did warn that people who
retained their analog service would have roaming problems as the larger
markets where digital is available will not retain analog capability after
Fall of this year.

On 7/19/07 4:42 PM, in article ,
"John Navas" wrote:

On Thu, 19 Jul 2007 14:45:00 GMT, wrote in
:

In rec.radio.amateur.antenna Radium wrote:

Digital cell phones should stop using the compression they use and
start using monaural WMA compression with a CBR of 20 kbps or less and
a sample rate of at least 44.1 KHz. In addition, the following must
also apply:

The audio bandwidth of the phone system is about 3 KHz.

Actually more like 10 KHz.

If he is commenting on the bandwidth of a message network channel/circuit,
including cellular, it is about 3 kHz.

"Jeff Liebermann" wrote in message
...
On Thu, 19 Jul 2007 10:38:21 -0400, "Dana" wrote:

Why bother? Analog cell phones are going away on Valentine's Day
2008.
http://dialzero.blogspot.com/2007/06/analog-cellphone-service-to-end-after.html

The FCC does not require that analog service be turned off. Only that
carriers are not required to continue analog service past that date.
A good number of rural areas will probably continue to use Analog cellualr
service for a few years after that.

True. Analog will probably dribble along for quite a while. The only
plans that I've heard or read are Verizon's. They're going to (or
already have) change the PRL (preferred roaming list) to not include
analog roaming. I know a local die hard who was informed in writing
that analog will be "going away" in Feb 2008 and that they will not
renew his contract for analog after that date. I haven't seen the
actual letter so I don't know if there are any details such as the
date they'll pull the plug on him. I had the same issue with Verizon
and a non-GPS enabled cell phone, where they refused to renew the
contract with the old phone. That means that all analog phones might
be gone by the time the current contracts expire, which would a
maximum of 2 years (probably much less).

at&t will probably do the same thing. The only analog systems they
still operate are the 800MHz TDMA systems they inherited from Dobson,
Cell One, and others. You'll probably get a Valentine greeting card
from at&t announcing the demise of analog.

Incidentally, at&t discontinued its CDPD (cellular digital packet
data) service in mid 2004. Verizon did the same a year later. Yet, I
still am getting sync and carrier for CDPD on my Novatel(?) CDPD
modem. As I mentioned in another thread, there are still IMTS tones
on the air. I guess old services never seem to die completely.

True enough, Up here in Southwestern Alaska, I am maintaining an old Novatel
that was branded up to Nortel amps system. We run an old MTX DMS 100 switch
along with these 8 Amps cell sites. We are looking at a CDMA system from
Lemko.


--
# Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
# 831-336-2558
# http://802.11junk.com
# http://www.LearnByDestroying.com AE6KS

"John Navas" wrote in message
...
On Thu, 19 Jul 2007 14:33:43 -0700, Jeff Liebermann
wrote in
:

On Thu, 19 Jul 2007 10:38:21 -0400, "Dana" wrote:

Why bother? Analog cell phones are going away on Valentine's Day
2008.
http://dialzero.blogspot.com/2007/06/analog-cellphone-service-to-end-after.html

The FCC does not require that analog service be turned off. Only that
carriers are not required to continue analog service past that date.
A good number of rural areas will probably continue to use Analog
cellualr
service for a few years after that.

True. Analog will probably dribble along for quite a while. ...

I seriously doubt it. All the carrier people I know are chomping at the
bit to turn it off, as noted in public statements.

He said dribble, and that would be true for rural areas, as there is no big
push to change much out in the rural areas.

--
Best regards, FAQ FOR CINGULAR WIRELESS:
John Navas http://en.wikibooks.org/wiki/Cingular_Wireless_FAQ

"Don Bowey" wrote in message
...
On 7/19/07 4:41 PM, in article ,
"John Navas" wrote:

On Thu, 19 Jul 2007 09:56:57 -0500, wrote in
:

How about just national enforcing Californias proposed Consumer code
for cell phone companies.

Really bad idea. The market works better without government
interference.

Brilliant stupid canned comment.

California has a government.

The US has a government.

I'd rather we work issues with our elected Federal representatives than
have
California start pushing at the state level.

States are more responsive than the feds, Besides we are a federal republic,
hence the states should be taking back what the feds have grabbed.

"John Navas" wrote in message
...
On Thu, 19 Jul 2007 14:45:00 GMT, wrote in
:

In rec.radio.amateur.antenna Radium wrote:

Digital cell phones should stop using the compression they use and
start using monaural WMA compression with a CBR of 20 kbps or less and
a sample rate of at least 44.1 KHz. In addition, the following must
also apply:

The audio bandwidth of the phone system is about 3 KHz.

Actually more like 10 KHz.

That is incorrect. The person that said 3khz is way closer than your wild
guess.

--
Best regards, FAQ FOR CINGULAR WIRELESS:
John Navas http://en.wikibooks.org/wiki/Cingular_Wireless_FAQ

In rec.radio.amateur.antenna Don Bowey wrote:
On 7/19/07 4:42 PM, in article ,
"John Navas" wrote:

On Thu, 19 Jul 2007 14:45:00 GMT, wrote in
:

In rec.radio.amateur.antenna Radium wrote:

Digital cell phones should stop using the compression they use and
start using monaural WMA compression with a CBR of 20 kbps or less and
a sample rate of at least 44.1 KHz. In addition, the following must
also apply:

The audio bandwidth of the phone system is about 3 KHz.

Actually more like 10 KHz.

If he is commenting on the bandwidth of a message network channel/circuit,
including cellular, it is about 3 kHz.

Exactly.

--
Jim Pennino

Remove .spam.sux to reply.

On 7/19/07 6:59 PM, in article ,
"Dana" wrote:


"Don Bowey" wrote in message
...
On 7/19/07 4:41 PM, in article ,
"John Navas" wrote:

On Thu, 19 Jul 2007 09:56:57 -0500, wrote in
:

How about just national enforcing Californias proposed Consumer code
for cell phone companies.

Really bad idea. The market works better without government
interference.

Brilliant stupid canned comment.

California has a government.

The US has a government.

I'd rather we work issues with our elected Federal representatives than
have
California start pushing at the state level.

States are more responsive than the feds, Besides we are a federal republic,
hence the states should be taking back what the feds have grabbed.




Naïve point of view. The feds grabbed? Do you recall how the state's
representatives become feds?

John Navas wrote:
Spectral efficiency be damned as long as you get yours?

Damned right

John Navas wrote:
On Thu, 19 Jul 2007 14:45:00 GMT, wrote in
:

In rec.radio.amateur.antenna Radium wrote:

Digital cell phones should stop using the compression they use and
start using monaural WMA compression with a CBR of 20 kbps or less and
a sample rate of at least 44.1 KHz. In addition, the following must
also apply:
The audio bandwidth of the phone system is about 3 KHz.

Actually more like 10 KHz.

Ahhhhh...an answer by obsfucation! Without qualifying the signal levels at
10 KHz, his answer would be correct.

According to AT&T's "Notes on the Network", the bandwidth is actually 400
Hz to 3,200 Hz where you have specific audio levels measured in decibels.

This will it explain it on terms equatable to John's telecommunications
skill set. http://communication.howstuffworks.com/telephone6.htm