Strange call dropping

When I get very close to a cell-tower, my calls drop. I would heve
thought they'd get stronger, but they almost always die. I know it's
not my phone (V3x), since my old V551 did this too.

Can anyone explain this?

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› See More: Strange call dropping

"Nomad" <[email protected]> wrote in message
news:[email protected]...
> When I get very close to a cell-tower, my calls drop. I would heve
> thought they'd get stronger, but they almost always die. I know it's
> not my phone (V3x), since my old V551 did this too.
>
> Can anyone explain this?

I think you will find the broadcast pattern is donut shaped. As you near the
donut hole, you get no icing.

Better minds than mine can confirm/deny.

"Thurman" <[email protected]> wrote:
> "Nomad" <[email protected]> wrote in message
> news:[email protected]...
> > When I get very close to a cell-tower, my calls drop. I would heve
> > thought they'd get stronger, but they almost always die. I know it's
> > not my phone (V3x), since my old V551 did this too.
> >
> > Can anyone explain this?
>
> I think you will find the broadcast pattern is donut shaped. As you near
> the donut hole, you get no icing.
>
> Better minds than mine can confirm/deny.

Try a bear claw or maple bar.

--
..

"Nomad" <[email protected]> wrote in message
news:[email protected]...
> When I get very close to a cell-tower, my calls drop. I would heve
> thought they'd get stronger, but they almost always die. I know it's
> not my phone (V3x), since my old V551 did this too.
>
> Can anyone explain this?

"a cell-tower" or one of your carriers cell towers?
There is a big difference as obviously all carriers do not transmit from all
towers and in fact have their own.

"PC Medic" <[email protected]> wrote in message
news:3xzSg.534$XX2.115@dukeread04...
>
> "Nomad" <[email protected]> wrote in message
> news:[email protected]...
>> When I get very close to a cell-tower, my calls drop. I would heve
>> thought they'd get stronger, but they almost always die. I know it's
>> not my phone (V3x), since my old V551 did this too.
>>
>> Can anyone explain this?
>
> "a cell-tower" or one of your carriers cell towers?
> There is a big difference as obviously all carriers do not transmit from
> all towers and in fact have their own.
>
To further on this it is possible that the tower is not one of your own...
and that the tower is de-sensing your phones receiver thus making you drop
calls.

On Thu, 28 Sep 2006 17:17:34 -0400, "jp450" <[email protected]> wrote:

>
>"PC Medic" <[email protected]> wrote in message
>news:3xzSg.534$XX2.115@dukeread04...
>>
>> "Nomad" <[email protected]> wrote in message
>> news:[email protected]...
>>> When I get very close to a cell-tower, my calls drop. I would heve
>>> thought they'd get stronger, but they almost always die. I know it's
>>> not my phone (V3x), since my old V551 did this too.
>>>
>>> Can anyone explain this?
>>
>> "a cell-tower" or one of your carriers cell towers?
>> There is a big difference as obviously all carriers do not transmit from
>> all towers and in fact have their own.
>>
>To further on this it is possible that the tower is not one of your own...
>and that the tower is de-sensing your phones receiver thus making you drop
>calls.
>
I think there's only the one GSM provider in my area, so it's probably
one of 'mine'. My phone only does GSM.

The donut theory sounds interesting though.

On Wed, 27 Sep 2006 09:07:16 -0500, "Thurman" <[email protected]>
wrote:

>
>I think you will find the broadcast pattern is donut shaped. As you near the
>donut hole, you get no icing.
>
>Better minds than mine can confirm/deny.
>

This sounds logical. Thanks.

On Thu, 28 Sep 2006 20:29:34 -0400, Nomad <[email protected]>
wrote:

>On Wed, 27 Sep 2006 09:07:16 -0500, "Thurman" <[email protected]>
>wrote:
>
>>
>>I think you will find the broadcast pattern is donut shaped. As you near the
>>donut hole, you get no icing.
>>
>>Better minds than mine can confirm/deny.
>>
>
>This sounds logical. Thanks.


Watch your signal strength as you approach the tower with some one
else driving. If it is higher as you approach the suspect tower and
then drops very quickly as you continue to appproach, you have proven
the donut theory. I have only seen this in distances of 100 meters or
less from the tower, about 325 feet for you yanks.

j

Sorry for my post in the news groups but I have hands on knowlegde about this. The doughnut theory is exactly right, I thought of it more like an umbrella though but gsm, tdma, cdma seems to be all the same. There is a nextel tower behind one of the bars I go to (that's pub for all you Brits) and I can step back and forth and listen to the signal drop and come back. (Nextels make an audible chirp when they regain their signal)

On Thu, 28 Sep 2006 20:28:51 -0400, Nomad <[email protected]> wrote:
>On Thu, 28 Sep 2006 17:17:34 -0400, "jp450" <[email protected]> wrote:
>
>>
>>"PC Medic" <[email protected]> wrote in message
>>news:3xzSg.534$XX2.115@dukeread04...
>>>
>>> "Nomad" <[email protected]> wrote in message
>>> news:[email protected]...
>>>> When I get very close to a cell-tower, my calls drop. I would heve
>>>> thought they'd get stronger, but they almost always die. I know it's
>>>> not my phone (V3x), since my old V551 did this too.
>>>>
>>>> Can anyone explain this?
>>>
>>> "a cell-tower" or one of your carriers cell towers?
>>> There is a big difference as obviously all carriers do not transmit from
>>> all towers and in fact have their own.
>>>
>>To further on this it is possible that the tower is not one of your own...
>>and that the tower is de-sensing your phones receiver thus making you drop
>>calls.
>>
>I think there's only the one GSM provider in my area, so it's probably
>one of 'mine'. My phone only does GSM.

The other technology mobile carriers will also need their transmitter
towers too - not just GSM.

--
-- Michael "Soruk" McConnell
Eridani Star System

MailStripper - http://www.MailStripper.eu/ - SMTP spam filter
Mail Me Anywhere - http://www.MailMeAnywhere.com/ - Mobile email

On Thu, 28 Sep 2006 21:54:34 -0500, Griffzan
<[email protected]> wrote:

>
>Sorry for my post in the news groups but I have hands on knowlegde about
>this. The doughnut theory is exactly right, I thought of it more like an
>umbrella though but gsm, tdma, cdma seems to be all the same. There is a
>nextel tower behind one of the bars I go to (that's pub for all you
>Brits) and I can step back and forth and listen to the signal drop and
>come back. (Nextels make an audible chirp when they regain their
>signal)

Unfortunately I pass a lot of cell towers on my way home from work,
and thus in several locations my calls drop. I am learning where I can
talk and where I can't. A bit of a pain!

"Nomad" <[email protected]> wrote in message
news[email protected]...
> On Thu, 28 Sep 2006 21:54:34 -0500, Griffzan
> <[email protected]> wrote:
>
>>
>>Sorry for my post in the news groups but I have hands on knowlegde about
>>this. The doughnut theory is exactly right, I thought of it more like an
>>umbrella though but gsm, tdma, cdma seems to be all the same. There is a
>>nextel tower behind one of the bars I go to (that's pub for all you
>>Brits) and I can step back and forth and listen to the signal drop and
>>come back. (Nextels make an audible chirp when they regain their
>>signal)
>
> Unfortunately I pass a lot of cell towers on my way home from work,
> and thus in several locations my calls drop. I am learning where I can
> talk and where I can't. A bit of a pain!
>
I'm with Cingular and our county sheriff has a VHF repeater on the Cingular
tower that I maintain. I have NEVER lost signal when at the tower working on
the repeater. The cellular signal is radiated in a lobe pattern from each
antenna, there is a null point between the antennas, but not enough to drop
your call.
...
bamp

"jp450" <[email protected]> wrote in message
news:[email protected]...
>
>>
>>
> To further on this it is possible that the tower is not one of your own...
> and that the tower is de-sensing your phones receiver thus making you drop
> calls.

Exactly! rf overload is de-sensitizing the rcv side of your phone.