V3 Razr: Which band is being used?

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DevilsPGD - 28 Aug 2005 08:59 GMT

I've got a V3 Razr -- I'm wondering if there is any way to tell whether
the phone is using the 850MHz or 1900MHz band?

The reason I ask, my parents have 1900MHz only phones, we're finding
that I have reception in places where they don't have any signal at all.

I'd like to tell whether it's just that their phones have worse RF
performance in general, or whether buying 850MHz-capable phones would
solve it.

Thanks in advance!

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BruceR - 28 Aug 2005 09:17 GMT

I don't know if there's any way to know other than by temporarily
turning off the 850 capability in your phone.
There's this:

SEEM 0025_0001

**all offsets are HEX**

offset 00 -
bit 0, bit 3: 900/1800 and 1900 (set each of
these bits to 1)
         bit 0, bit 1, bit 3: 850/1900 and 900/1800 (set each of these bits
to 1)
         bit 0, bit 2, bit 3: 850/1900 and 900 (set each of these bits to
1)
         bit 2, bit 3: 850/1900 and 1800 (set each of these bits to 1)

From:DevilsPGD
spamsucks@crazyhat.net

> I've got a V3 Razr -- I'm wondering if there is any way to tell
> whether the phone is using the 850MHz or 1900MHz band?
[quoted text clipped - 13 lines]
>
> "He's dead. Good."

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DevilsPGD - 28 Aug 2005 09:51 GMT

>I don't know if there's any way to know other than by temporarily
>turning off the 850 capability in your phone.
[quoted text clipped - 12 lines]
>1)
> bit 2, bit 3: 850/1900 and 1800 (set each of these bits to 1)

That will probably do the trick, it's good enough to test a few specific
places. Thanks!

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Mike Schumann - 28 Aug 2005 18:38 GMT

Can't you manually select the network? If so, you should be able to see
which network you have access to, which the other phones don't see.

Mike Schumann

> I've got a V3 Razr -- I'm wondering if there is any way to tell whether
> the phone is using the 850MHz or 1900MHz band?
[quoted text clipped - 7 lines]
>
> Thanks in advance!

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DevilsPGD - 28 Aug 2005 19:24 GMT

>Can't you manually select the network? If so, you should be able to see
>which network you have access to, which the other phones don't see.

The only network I see is "Rogers", it doesn't differentiate between
Rogers' 1900MHz band and the Rogers 850MHz band.

Unless I missed something obvious, I'm still not 100% familiar with this
phone (and not going to start hax0ring until I feel I'm ready to fix it
if I screw up :)

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dold@XReXXV3XRa.usenet.us.com - 28 Aug 2005 21:46 GMT

In alt.cellular.motorola DevilsPGD <spamsucks@crazyhat.net> wrote:

> The only network I see is "Rogers", it doesn't differentiate between
> Rogers' 1900MHz band and the Rogers 850MHz band.

My V551 allows me to select 850/1900 or 900/1800, but doesn't allow me to
select half of either of those.

<http://tutorials.cingular.com/tutorial/web_tutorials/tutorialRouter?deviceId=741
0&subscriberType=cing&tutId=126080&fetIndex=1&tutIndex=8>

Is a Cingular page that shows V3 steps for selecting a carrier, which should let
you see if there is a roaming carrier that is playing with one of the phones.
That isn't available on my V551.

I used to have a bag phone that let you see a diagnostic screen of all
kinds of cell tower debugging information. A little interesting, and
useful for a case like this.

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DevilsPGD - 28 Aug 2005 22:16 GMT

>In alt.cellular.motorola DevilsPGD <spamsucks@crazyhat.net> wrote:
>> The only network I see is "Rogers", it doesn't differentiate between
[quoted text clipped - 4 lines]
>
><http://tutorials.cingular.com/tutorial/web_tutorials/tutorialRouter?deviceId=741
0&subscriberType=cing&tutId=126080&fetIndex=1&tutIndex=8>

I can do the same on my V3. Nothing on the 900/1800 though, of course.

>Is a Cingular page that shows V3 steps for selecting a carrier, which should let
>you see if there is a roaming carrier that is playing with one of the phones.
>That isn't available on my V551.

That's just it though, I'm not trying to use a roaming carrier. My
carrier (Rogers) offers service on both 850MHz and 1900MHz, but it's all
the same carrier.

>I used to have a bag phone that let you see a diagnostic screen of all
>kinds of cell tower debugging information. A little interesting, and
>useful for a case like this.

My Motorola i730 (iDEN, not GSM) had some diagnostics screens that could
identify signal strength and which tower I was accessing and a few other
details, but I haven't found anything like that on the V3 yet.

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