• Author / Uploaded
• David Teszt

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DATASHEET

28.10.2008

Dual 1800MHz 12/33dB Mast Head Amplifier Dual 1800 MHA comprises two identical amplifiers in one compact integrated package which is easy to transport and install. Amplifier design provides selectable 12/33dB of gain, compensating feeder loss and improving coverage. MHA has by-pass functionality to mitigate the effect of MHA failure on cell coverage. Dual 1800 MHA has been designed to operate with Nokia UltraSite and Flexi BTS and Siemens BTS with MFDUAMCO. Default gain is 33dB. 12dB gain can be selected with RealTilt RCUA or with Flexi WCDMA BTS

RECEIVE PATH SPECIFICATIONS Frequency Range

1710-1785 MHz

Rx gain

12/33 dB

Gain variation

+/- 0.8 dB max. at room temperature +/- 1.0 dB max. over entire operating temperature range

Noise Figure

1.9 dB max. at room temperature 2.2 dB max. over entire operating temperature range

TRANSMIT PATH SPECIFICATIONS Frequency Range

1805-1880 MHz

Tx insertion loss

0.7 dB max.

Return loss

18.0 dB

Intermodulation

-115 dBm ( Rx band 3rd order; 2 x 43dBm )

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DATASHEET

28.10.2008

MHA POWER HANDLING Input power on ANT port: RX band

+5 dBm min.

Interferers in GSM900

+20 dBm min.

Interferers in WCDMA2100

+16 dBm min.

Interferers in 2.62-2.69GHz

+16 dBm min.

Power handling capability on BTS port:

+52.5 dBm continuous RMS power

MECHANICAL SPECIFICATIONS Dimensions (H x W x D) 295 x 210 x 65 Volume

4 litre approx

Weight

5 kg approx.

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

Lightning protection

In accordance with IEC 801-5 and IEC 61312

MTBF

450 000 hours

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DATASHEET

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28.10.2008

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 BTS1 and BTS2 in AISG mode via BTS1 (WCDMA Flexi WBTS4.0 onwards) AISG and DC pass-trough BTS1-ANT1

OTHERS Compatibility

Nokia UltraSite GSM/EDGE BTS, Nokia Flexi GSM/EDGE and WCDMA, Siemens BTS with MFDUAMCO

Spurious emissions, Blocking, etc

According to GSM 11.21 with Nokia Siemens Networks BTS

AISG

AISG2.0

ORDERING CODES

CS7299220 MDDA L50026-A-A128 S30861-U2572-X MDDA1800V1

Dual MHA 1800, Rx:1710-1785MHz Dual MHA 1800, Rx:1710-1785MHz