DATASHEET 1 (3)

WMHD 17.10.07 WMHD - WCDMA 2.1GHz AISG dual Mast Head Amplifier 471443A

WMHD MicroMHA comprises two identical amplifiers in one compact integrated package which is easy to transport and install. A state of the art Low Noise amplifier design provides a nominal 12dB of gain, compensating feeder loss and improving coverage. In the unlikely event of component or power failure, a bypass path allows the BTS to continue operation.

Power is fed via the feeder cable, in Flexi BTS no BiasTs are needed, WMHD gets it’s power and control directly from BTS. With Ultrasite one BiasT is needed. WMHD has also RET connector for remote antenna tilt adjustor, RTA.

RECEIVE PATH SPECIFICATIONS Frequency Range 1920 – 1980 MHz Rx gain 12 dB Gain variation +/- 0.5 dB max. at room temperature +/- 0.9 dB max. over entire operating temperature range Rx Insertion Loss 2.7 dB max. in bypass mode Noise Figure 1.7 dB max. at room temperature 1.9 dB max. over entire operating temperature range TRANSMIT PATH SPECIFICATIONS Frequency Range 2110 – 2170 MHz Tx insertion loss 0.4 dB max. at room temperature 0.5 dB max. over entire operating temperature range Return loss 18.0 dB min. Intermodulation -116 dBm max. (MHA on, Rx band 7th order; 2 x Tx carrier at 43dBm )

DATASHEET 2 (3)

WMHD 17.10.07 MHA POWER HANDLING Input power without damage on ANT port: RX band (1920 – 1980MHz) +5 dBm min. Interferers in GSM900 transmit +25 dBm min. bands Interferers in GSM1800 +25 dBm min. Power handling capability on BTS port: Single carrier +49 dBm continuous RMS power 3 carriers +49 dBm continuous RMS power total MECHANICAL SPECIFICATIONS Dimensions (H x W x D) 190 x 150 x 50 Volume 1.5 litre approx. Weight <3.5 kg RF connector type 7-16 female RET connector IEC 60130-9 as in AISG Grounding Stud M8 ENVIRONMENTAL SPECIFICATIONS Operating temperature -40º - +55ºC Enclosure protection IP67 EMC In accordance with EMC Directive 89/336/EEC Lightning protection In accordance with IEC 801-5 and IEC 61312 MTBF >700,000 hours

DATASHEET 3 (3)

WMHD 17.10.07 INSTALLATION

Wall Mounting Using 4 x M8 bolts or screws

Pole Mounting Pole diameter 40 – 110mm, using hose band clamps Orientation Can be installed in multiple orientations Powering - in current window mode via BTS2 port - in AISG mode via BTS1 (WBTS4.0 onwards) OTHERS Compatibility SW WN2.0 ED2 or later with Nokia WCDMA BTS (Before WBTS4.0 commissioning done as WMHC) AISG AISG2.0 Spurious emissions, Blocking, etc According to 3GPP TS25.104 with Nokia WCDMA BTS