Using the iPhone’s Field Test Mode allows you to easily find out which frequency your cell phone is using to access your cell phone carrier (usually AT&T). The instructions differ depending on whether your iPhone is using the 3G or non-3G network.

If your phone shows a 3G icon in the top left of the screen:

1. Dial *3001#12345#* on the keypad and press call.
2. Select “UMTS Cell Environment”
3. Select “UMTS RR Info
4. If the uplink frequency is a number between 4132 and 4233, your phone is using the 800/850MHz Band. If the uplink frequency is a number between 9262 and 9538, your phone is using the 1900MHz band.

If your phone shows no 3G icon in the top left of the screen:

1. Dial *3001#12345#* on the keypad and press call.
2. Select “GSM Cell Environment”
3. Select “UMTS Network Information
4. Scroll down to the bottom of the page and find the ARFCN
5. If your ARFCN is between 128 and 251, then your phone is using the 800/850MHz band. If your ARFCN is between 512 and 810, then your phone is using the 1900MHz band.

In collaboration with Repeaterstore.eu, our European based sister company, Repeaterstore is proud to announce a new database of worldwide mobile phone frequency information. Now anyone around the world can easily find a suitable repeater to boost their mobile phone signal!

The database has aggregated information on over 200 countries around the world and transformed it into a very simple to use interface. To use the database, you simply select the country you are located in, then select the Service Provider that your mobile phone uses. The database can tell you what frequency that Service Provider operates their network on and will link you directly to the repeaters we have that work on those frequencies.

Try it out: Repeater Store Worldwide Mobile Phone Frequency Tool

Side Note: In the US, the licensed cell phone frequencies are 800/850MHz and 1900MHz, and all US networks operate somewhere within these bands. For most of the rest of the world however, the Mobile Phone Networks operate on the 900MHz & 1800MHz frequency bands and repeaters must be made especially for those frequencies. You can find these 900/1800MHz repeaters at RepeaterStore.eu. For standard US 800/1900MHz Repeaters try our Top Cell Phone Repeaters on Repeaterstore.com

We have just added two new premium versions of our single-band Wi-Ex YX500 products. These premium kits include the same amplifier and cables as the standard kits, but add upgraded external antennas. These upgraded kits are recommended for low signal situations (i.e. 3 bars or less outside), but can also be used to extender the coverage area of YX500 products when stronger signal is available.

The zBoost YX500-CEL Premium kit includes an upgraded YX026-CEL Yagi Antenna, and the YX500-PCS Premium Kit includes the YX023-PCS panel antenna.

 
The Spotwave Z1900 is a new addition to the range of cell phone amplifiers we stock at the RepeaterStore. The Spotwave Z1900 is a stylish wireless cell phone repeater that operates on the 1900 MHz frequency band. This means it will be able to boost your cell phone reception from a weak signal to a strong and reliable one for Networks operating on the 1900 MHz Frequency band.

News Flash >> Starting Today, August 1st ‘07 the Spotwave Z1900 has taken a permanent price cut to $299 following the success of the temporary $100 discount that has been operating for the past month.

With a system gain of +63 dB the Spotwave Z1900 is one of the stronger amplifiers in its price range. The amplifier also features a modern and attractive design so you won’t want to hide it away in the corner of the room. The Spotwave Z1900 comes as a full repeater kit with everything you need to improve your cell phone recelption, including antennas, cables, power supply, mounting equipment and of course the Z1900 amplifier.

Networks operating on the 1900 MHz frequency band include Sprint and T-mobile. In addition to this, Verizon and Cingular operate the majority of their 3G data services on 1900 MHz, so the Spotwave Z1900 should improve the performance of 3G data cards operating on the Cingular or Verizon network. However, Cingular and Verizon only use the 1900 MHz for voice coverage in a small amount of areas. For more information on Cellular Network Frequency usage visit our cell phone repeater buyer guide, or contact us.

Buy it now or find out more on the Spotwave Z1900 product page – click here.

Users of the iPhone have discovered that the phone has a very comprehensive “Field Test” mode that allows users to find out a range of information about the phone’s connection to the network. In particular, the information displayed in the Field Test mode allows users to discover exactly which tower their phone is connecting to, and which frequency band the signals are being sent on.

Here are some simple instructions to find out which frequency your iPhone is using:

1. Access the iPhone’s Field Test mode by typing *3001#12345#* in the phone’s keypad and press dial. This will bring up the Field Test menu.

2. Select the “Cell Information” menu option to display a summary of all nearby towers. The “RX” code displays the signal strength of each tower. These RX values are dBm signal strength readings, where lower values means strong signal (so -60 signifies stronger signal than -80). The towers are listed by signal strength, and the top tower is usually the tower your phone is connecting to.

3. Selecting the first tower will take you to a further menu that displays more specific information. The “Freq” value shows the frequency block that the network is using. If the Freq number is between 128 and 251, the tower is using the 850 MHz Cellular band. If the Freq number is between 512 and 810, the tower is using the 1900MHz PCS band.