Tag Archives: gsm

Verizon iPhone

Lots of people are clamoring about the fact that Verizon is going to offer the iPhone.

There are a lot of good reasons to get an iPhone from Verizon … better network, better packages, tethering, etc.

One significant reason NOT to get the Verizon iPhone is: It doesn’t work in the UK and Europe.

The UK and Europe use the GSM system for cell phones … and the Verizon iPhone doesn’t support that.   It uses CDMA.

I know from personal experience that the AT&T iPhone does work fine in the UK (although it’s pricey).

I’ve also seen comments mentioning that the CDMA can’t handle data connections at the same time as voice connections.

So if you travel to the UK or Europe much, think twice about getting the Verizon iPhone.

I did see a rumor that Apple is going to offer a “World phone” that will, theoretically, have CDMA and GSM capabilities.

We still have a number of months left on our AT&T contract … so I’m going to hold off on jumping over to Verizon.   Ginny & I travel a fair amount and really like the UK & Europe.

Related posts ...
We bit the bullet ... we got iPhones.   Our Verizon cell phone contract has
Today we just wandered around York a bit ... it was a Bank Holiday ...
We traveled from Stow to York today ... took the train, as it was the
Today we went to Oxford. A quite enjoyable town, full of history and interesting places.

iPhone Buzzing

Radio InteferenceEver since I got the iPhone, I’ve noticed that it causes nearby speakers (radios, desk phones, etc) to emit a buzzing noise.

The odd thing is, my boss Brian’s Blackberry does the same thing.

I finally found the reason why:

The cause of this buzzing has to do with GSM’s “time division nature. The ever-knowledgeable Keith Nowak, spokesperson for Nokia, explains it as follows: “[[With GSM]] the RF transmitter is turned on/off at a fast rate, and that ‘pulsing’ is often picked up by nearby devices that don’t have good RF shielding. In the case of GSM the pulse rate is 217 Hz, which can be easily heard.

That Crazy GSM Buzz

When I put my iPhone in the clock radio / iPhone dock that Ginny got me for the holidays, it does the same thing. Luckily the dock isn’t recognized as being 100% iPhone compatible, so the iPhone offers to shut off the radio (go into Airplane mode) whenever I dock it. This eliminates the buzzing (mostly) because the phone isn’t transmitting.

Related posts ...
This post could also be titled: Why Carl Kasell is the greatest guy in the
On our recent vacation out west, we rented a car that included Sirus XM radio.
I was listening to WBEZ this morning and the traffic report came on ... The
OK, I've had this phone a few weeks ... time for me to list some