Mobile phone signal

[Rod Speed]

Some terminal fuckwit claiming to be
Mike Harding <[email protected]> desperatey attempted
to bullshit its way out of its predicament wrote in message
and fooled absolutely no one at all. As always.

 

[Mike Harding]

Doesn't know again - as I suspected.

Funny how so many of Rod's answers are of the ilk of:
"It's much more complicated than that"
but he never explains the complication - I think he
usually doesn't know.

And he always trims posts ONLY when he's uncomfortable
with the response - so this should create a dilemma

Mike Harding

 

[Rod Speed]

Some terminal fuckwit claiming to be
Mike Harding <[email protected]> desperately attempted
to bullshit its way out of its predicament wrote in message
and fooled absolutely no one at all. As always.

 

[John Hopgood]

I've ended up doing just that.

At the moment Telstra have a Nokia 2112 for $129 on prepaid and
recharges are being credited with double the time. So for $159, I
bought a CDMA phone with 12 months use and $70 in credits.

It's only a dinky little thing but at least gives me 1 - 3 bars.
During the drive back from the property to suburbia, the cdma never
went over 4 bars but also never dropped out. My Optus dipped in and
out from full strength to zero.

Thanks for your input guys.

Regards.......John

 

[Mark]

I also had a similar problem to John.

Originally using a Nokia 1100 GSM 'phone, I changed
over to a Nokia 2280 CDMA The locations where the
dropouts were before have gone but the peak signal
strength in the area is about 1 to 2 "bars" lower.

Generally too, the peaks & troughs in the signal have been
considerably reduced with the middle region signal
strengths being more common. Is this typical of CDMA?

I've found it hard to find any technical comparisons of
GSM vs CDMA signal propagation. The CDMA signal
seems "weaker" than GSM in what would normally be a
high signal area but 'hangs on' for longer.

Does this mean fewer cells are needed due to the CDMA
coding system & frequencies used combining to make a
signal that propagates more easily than GSM?

Regards,
Mark.

 

[Rod Speed]

I've ended up doing just that.

At the moment Telstra have a Nokia 2112 for $129 on prepaid and
recharges are being credited with double the time. So for $159, I
bought a CDMA phone with 12 months use and $70 in credits.

It's only a dinky little thing but at least gives me 1 - 3 bars.
During the drive back from the property to suburbia, the
cdma never went over 4 bars but also never dropped out.

cdma bars are different to gsm bars. You'll usually
maintain a good session even with 1 bar with cdma.

 

[Rod Speed]

I also had a similar problem to John.

Originally using a Nokia 1100 GSM 'phone, I changed
over to a Nokia 2280 CDMA The locations where the
dropouts were before have gone but the peak signal
strength in the area is about 1 to 2 "bars" lower.

Thats normal with cdma and it varys from cdma phone
to cdma phone too, just what they show bars wise.

There's a complicated reason for the
difference, but it doesnt matter in practice.

Generally too, the peaks & troughs in the signal have
been considerably reduced with the middle region signal
strengths being more common. Is this typical of CDMA?
Yes.

I've found it hard to find any technical comparisons
of GSM vs CDMA signal propagation.

It isnt actually signal propagation that matters.

CDMA keeps working fine with much lower signal levels than
GSM and there is not digital cliff that you have with GSM either.

The CDMA signal seems "weaker" than GSM in what would
normally be a high signal area but 'hangs on' for longer.

You cant tell that from the bars.

Does this mean fewer cells are needed due to the CDMA
coding system & frequencies used combining to make a
signal that propagates more easily than GSM?

Its a completely different effect. GSM needs similar signal
levels at the base from the various handsets its talking to.

CDMA works very differently in that regard.

There is **** all in it frequency and propagation wise.

The main difference is in how the RF is used.

 

[Mike Harding]

Thats normal with cdma and it varys from cdma phone
to cdma phone too, just what they show bars wise.

There's a complicated reason for the
difference, but it doesnt matter in practice.

Perhaps you would care to explain that "complicated reason"
to us? This is aus.electronics after all - we do talk about
complicated things.

It isnt actually signal propagation that matters.

OK. What does matter?

Its a completely different effect. GSM needs similar signal
levels at the base from the various handsets its talking to.

CDMA works very differently in that regard.

In what way is it different?

The main difference is in how the RF is used.

And what difference is that?

Mike Harding

 

[Rod Speed]

Some terminal fuckwit claiming to be
Mike Harding <[email protected]> desperately attempted
to bullshit its way out of its predicament wrote in message
and fooled absolutely no one at all. As always.

 

[Mike Harding]

Some terminal fuckwit claiming to be
Mike Harding <[email protected]> desperately attempted
to bullshit its way out of its predicament wrote in message
and fooled absolutely no one at all. As always.

Snipped the embarrasing stuff this time eh Rod.

So you don't know the answers then. Why am I
not surprised.

Mike Harding

 

[Rod Speed]

Some terminal fuckwit claiming to be
Mike Harding <[email protected]> desperately attempted
to bullshit its way out of its predicament wrote in message
and fooled absolutely no one at all. As always.