4208 Off-Air Mobile Tester

Serial interface

D-Sub 9, female
4800, 9600, 19200, 38400 Baud

Printer interface

D-Sub 25, female

Mains voltage range

100 to 250 VAC

Mains voltage frequency

50 to 60 Hz

Power consumption

17 Watts

Storage temperature

–30°C to +50°C

Operating temperature

+15°C to –35°C

Size

310 x 170 x 165 mm

Weight

2.4 kg

Input/output impedance

50 Ω

VSWR

< 1.9

RF input/output

N-type, female

Internal reference frequency

13 MHz

Aging

10^–6 /year

External ref. input

BNC-type, female
5/10/13 MHz

GSM 900, E-GSM

935 to 960 MHz (Channel 1 to 124)
925 to 935 MHz (Channel 975 to 1023, 0)

GSM 1800

1805 to 1880 MHz (Channel 512 to 885)

GSM 1900

1930 to 1990 MHz (Channel 512 to 810)

GSM 850 (optional)

869 to 894 MHz (Channel 128 to 251)

Reference frequency accuracy
(without external reference oscillator)

< 10^–6

GSM 850/900
GSM 1800/1900

–24 to –103 dBm
–30 to –103 dBm

Resolution

0.1 dB

For levels –96 to –24 dBm

< 1.0 dB

Operating temperature range

+20°C to +30°C

GSM 900, E-GSM

890 to 915 MHz (Channel 1 to 124)
880 to 890 MHz (Channel 975 to 1023, 0)

GSM 1800

1710 to 1785 MHz (Channel 512 to 885)

GSM 1900

1850 to 1910 MHz (Channel 512 to 810)

GSM 850 (option)

824 to 849 MHz (Channel 128 to 251)

Measurement range

±10 kHz off carrier

Usable range

±45 kHz

Measurement accuracy
GSM 850/900
GSM 1800/1900

< 15 Hz
< 25 Hz

Burst mode

–54 to +25 dBm

CW mode

–54 to +19 dB

Measurement accuracy

< 1.1 dB (-17 to +25 dBm)
< 1.5 dB (-54 to -17 dBm)

Power/time template

> 40 dB

I/Q alignment mask

> 60 dB

Measurement range

1.5° to 20° rms

Measurement accuracy
GSM 850/900
GSM 1800/1900

< 0.8° rms
< 1.4° rms

Timing advance accuracy

1/4 Bit