-GE> TDMA does sound pretty good as long as the towers aren't
-GE> very busy. As
-GE> more and more TDMA phones start competing for tower time,
-GE> and the Time
-GE> Division Multiplexing kicks in, then you'll hear the
-GE> "burbling" sound
-GE> people complain about with TDMA. A salesman I know from our
-GE> major
-GE> competitor confided in me that he only lets customers
-GE> listen to his TDMA
-GE> demo phone during low-use times. He never lets anyone try
-GE> it during
-GE> evening rush hour.
That's too bad, I guess the clocks must not be as accurate as they should be 
and the phones are colliding with each other slightly but enough to cause a 
problem.
-GE> But the digital phones don't have two different power
-GE> modes. The
-GE> Qualcomm digital/analog hybrid (and it's cousin, the Sprint
-GE> PCS Qualcomm
-GE> digital only) work at only 200 mWatts, as opposed to 600
-GE> mWatts for
-GE> analog portables. That only advantage to that nice bag
-GE> phone you refer
-GE> to is it's 3 watts of power. With digital, that advantage
-GE> is moot.
I was reading CY Lee's Cellular Mobile Telecommunications book, he was saying 
that the digital phones (CDMA) had 9 levels of power attenuation as compared 
to the 7 for analog phones.
The main advantage to the bag phones is the ability to put an antenna on the 
roof. We've done quite a bit of testing and have found that the three watt 
bag phone going thru the area we were testing was little better than a 
motorola flop phone, when the bag phone was using the standard duck and 
sitting on the passenger seat.
Connect up the roof mounted mag mount and the "bad" area disappeared. In 
fact, a friend of mine switched from a flop over to a real phone right after 
he heard me drive several times thru the same area with no noise at all.
One thing that I am adamant about is that for quality mobile communciations, 
is that an antenna mounted on the vehichle is a must, preferably at the 
highest point on the car.
-GE> to is it's 3 watts of power. With digital, that advantage
-GE> is moot.
Can you clarify that last statement? I don't quite understand what you're 
trying to tell me.
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