D.2 Environmental requirements for the MSs

05.053GPPRadio transmission and receptionTS

The requirements in this clause apply to all types of MSs.

D.2.1 Temperature (GSM 400, GSM 900 and DCS 1 800)

The MS shall fulfil all the requirements in the full temperature range of:

+15C ‑ +35C for normal conditions (with relative humidity of 25 % to 75 %);

‑10C ‑ +55C for DCS 1 800 MS and small MS units extreme conditions
(see IEC publications 68‑2‑1 and 68‑2‑2);

‑20C ‑ +55C for other units extreme conditions (see IEC publications 68‑2‑1 and 68‑2‑2).

Outside this temperature range the MS, if powered on, shall not make ineffective use of the radio frequency spectrum. In no case shall the MS exceed the transmitted levels as defined in 3GPP TS 05.05 for extreme operation.

D.2.1.1 Environmental Conditions (PCS 1 900 and GSM 850)

Normal environmental conditions are defined as any combination of the following:

Temperature Range

+15°C to +35°C

Relative Humidity

35% to 75%

Air Pressure

86 kPa to 106 kPa

Extreme operating temperature ranges depend on the specific manufacturer and application, but typical ranges are as follows:

MS Temperature Range:

-10°C to +55°C

D.2.2 Voltage

The MS shall fulfil all the requirements in the full voltage range, i.e. the voltage range between the extreme voltages.

The manufacturer shall declare the lower and higher extreme voltages and the approximate shut‑down voltage. For the equipment that can be operated from one or more of the power sources listed below, the lower extreme voltage shall not be higher, and the higher extreme voltage shall not be lower than that specified below.

Power source

Lower extreme

Higher extreme

Normal cond.

voltage

voltage

voltage

AC mains

0,9 * nominal

1,1 * nominal

nominal

Regulated lead acid battery

0,9 * nominal

1,3 * nominal

1,1 * nominal

Non regulated batteries:

Leclanché/lithium

0,85 * nominal

nominal

nominal

mercury/nickel cadmium

0,9 * nominal

nominal

nominal

Outside this voltage range the MS, if powered on, shall not make ineffective use of the radio frequency spectrum. In no case shall the MS exceed the transmitted levels as defined in 3GPP TS 05.05 for extreme operation. In particular, the MS shall inhibit all RF transmissions when the power supply voltage is below the manufacturer declared shut‑down voltage.

D.2.3 Vibration (GSM 400, GSM 900 and DCS 1 800)

The MS shall fulfil all the requirements when vibrated at the following frequency/amplitudes:

Frequency ASD (Acceleration Spectral Density) random vibration

5 Hz to 20 Hz 0,96 m2/s3

20 Hz to 500 Hz 0,96 m2/s3 at 20 Hz, thereafter ‑3 dB/Octave

(see IEC publication 68‑2‑36)

Outside the specified frequency range the MS, if powered on, shall not make ineffective use of the radio frequency spectrum. In no case shall the MS exceed the transmitted levels as defined in 3GPP TS 05.05 for extreme operation.

D.2.3.1 Vibration (PCS 1 900 and GSM 850)

10 – 100 Hz: 3 m2/s3 (0.0132 g2/Hz)

100 – 500 Hz: -3dB/Octave