GSM and EGSM 10-35 MHz Bandwidth

N E W P R O D U C T

A N N O U N C E M E N T

Designed for the highest

reliability even in the most

demanding installation

environments

One Company. A World of Solutions.

GSM900 Dual Duplex TMA

The tower mounted amplifiers fromAndrew Corporation optimize networkperformance and represent the idealsolution for coverage and capacityenhancement.

By improving uplink performance, theTMAs ensure optimum coverage of fringeareas, weak spots, and indoor locations.The unit is easy to install in any wirelesssystem and guarantees:

Improved sensitivity, by reducing droppedcalls and failed connection attempts;

Enhanced signal quality, by improvingvoice clarity and data transmissionspeed;

Lower handset output, by extending talk-time, reducing interference while increas-ing traffic capacity in CDMA systems.

The GSM900 TMA is part of AndrewTMA platform, a complete range ofsuperior TMA products incorporatingstate-of-the-art technology and efficientproduction methods. The self-contained packaging isengineered to ensure the highest reliability in severe environments whilefeaturing a very compact size andattractive appearance.The GSM900 TMA includes polemounting hardware.

• AMPS rejection to help eliminate interference from nearby 800 MHzcellular transmitters. Featured in10 MHz model.

• Failsafe LNA bypass supports soft degradation in case of power failure

• Lightning protection, thanks to a built-in multi-stage surge suppressor.

GSM900 – Product Specifications

S P E C I F I C A T I O N S

Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ETM910A-12-D ETM935E-12-D

RX

Frequency range, MHz . . . . . . . . . . . . . . . . . . . . . . .905.5 to 915 . . . . . . . . . . . . . . . . . . . . . . 880 to 915

TX band rejection, dB . . . . . . . . . . . . . . . . . . . . . . . .90 minimum . . . . . . . . . . . . . . . . . . . . . . . 90 minimum

Rejection <894 MHz, dBc . . . . . . . . . . . . . . . . . . . . .35 minimum . . . . . . . . . . . . . . . . . . . . . . . n.a. . . . . . . .

Gain (ripple included), dB . . . . . . . . . . . . . . . . . . . . .12±1. . . . . . . . . . . . . . . . . . . . . . . . . . . 12±1

Noise figure, dB . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.7 typical . . . . . . . . . . . . . . . . . . . . . . . . 1.9 typical

Input 1 dB compression point, dBm . . . . . . . . . . . . . .6 typical . . . . . . . . . . . . . . . . . . . . . . . . . 2 typical

Output IP3, dBm . . . . . . . . . . . . . . . . . . . . . . . . . . . .+28 typical . . . . . . . . . . . . . . . . . . . . . . . +22 typical

Return loss, dB . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 minimum . . . . . . . . . . . . . . . . . . . . . . . 20 typical

IMD @ antenna port (2x42 dBm), dBm . . . . . . . . . . . .-115 maximum . . . . . . . . . . . . . . . . . . . . . -115 maximum

Insertion loss - bypass mode, dB . . . . . . . . . . . . . . . . .2.0 typical . . . . . . . . . . . . . . . . . . . . . . . . 2.3 typical

Return loss - bypass mode, dB . . . . . . . . . . . . . . . . . .15 minimum . . . . . . . . . . . . . . . . . . . . . . . 17 typical

TX

Frequency range, MHz . . . . . . . . . . . . . . . . . . . . . . .950.5 to 960 . . . . . . . . . . . . . . . . . . 925 to 960

Insertion loss , dB . . . . . . . . . . . . . . . . . . . . . . . . . . .0.3 typical . . . . . . . . . . . . . . . . . . . . . . . . 0.5 typical

IMD @ antenna port (2x42 dBm), dBc . . . . . . . . . . . .--76 maximum. . . . . . . . . . . . . . . . . . . . . . -76 maximum

Return loss, dB . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 minimum . . . . . . . . . . . . . . . . . . . . . . . 19 minimum

Input power rating - RMS, watts . . . . . . . . . . . . . . . . .30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Input power rating - PEP, watts . . . . . . . . . . . . . . . . .420 . . . . . . . . . . . . . . . . . . . . . . . . . . . 420

Power supply voltage, Vdc . . . . . . . . . . . . . . . . . . . .10 - 18 . . . . . . . . . . . . . . . . . . . . . . . . . 10 - 18

Operating current, mA . . . . . . . . . . . . . . . . . . . . . . .140±15 . . . . . . . . . . . . . . . . . . . . . . . . . 140±15

Lightning protection antenna portt . . . . . . . . . . . . . . .DC ground . . . . . . . . . . . . . . . . . . . . . . . . DC ground

Lightning protection BTS portt . . . . . . . . . . . . . . . . . .5 kA, 8/20 µs. . . . . . . . . . . . . . . . . . . . . . 5 kA, 8/20 µs

Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7/16 DIN Female . . . . . . . . . . . . . . . . . . . . 7/16 DIN Female

GroundingGround terminal, mm (in) . . . . . . . . . . . . . . . . .8 (5/16”) dia

Grounding cable . . . . . . . . . . . . . . . . . . . . . . .16 mm2 (7 AWG) stranded . . . . . . . . . . . . . . .Length . . . . . . . . .1 m (40”) . . . . . . . . . . . . . . .Terminal . . . . . . . .Universal 2-hole

EnvironmentalOperating temperature range . . . . . . . . . . . . . .-40° C to +65° C

Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . .100%

Ingress protection . . . . . . . . . . . . . . . . . . . . . . .IP65

Wind load @115 km/h (70 mph), N (Ibf) . . . . . .46 (10)

Wind speed, km/h (m/s) . . . . . . . . . . . . . . . . .>200 (>55)

MechanicalHeight, depth, width, mm (in) . . . . . . . . . . . . .277.5 x 91 x 175

. . . . . . . . . . . . . . . . . .(11 x 3.6 x 6.9)

Weight - without mounting hw, kg (Ib) . . . . . . . .5 (11) maximum

Finish . . . . . . . . . . . . . . . . . . . . . . . . . . . .Gray paint MT11030

MountingPole mounting hardware . . . . . . . . . . . . . . . . . .Dual band clamps

Pole diameter, mm (in) . . . . . . . . . . . . . . . . . . .40 to 160 (1.6 to 6.3)

Wall mounting . . . . . . . . . . . . . . . . . . . . . . . . .4 ea 6 to 8 mm . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(1/4” to 5/16”), . . . . . . . . . . . . . . . . . . . . . . . . . . . . .dia screws (not included)

GSM900 – Product Specifications

S P E C I F I C A T I O N S

Cabinet Drawings and Mounting Kit

Block Diagram

All designs, specifications and availabilities ofproducts and services presented in this bulletin aresubject to change without notice.

Bulletin 10996 (Rev. B 10/04)© 2004 Andrew Corporation, Orland Park, IL60462 USA

Customer Support CenterFrom North AmericaTelephone: 1-800-255-1479Fax: 1-800-349-5444

InternationalTelephone: +1-708-873-2307Fax: +1-708-349-5444

Internet: www.andrew.com

Andrew Corporation10500 W. 153rd StreetOrland Park, IL 60462 USA

S P E C I F I C A T I O N S

One Company. A World of Solutions.Forem SrlAn Andrew CompanyVia Archimede 22/2420041 Agrate Brianza, ItalyPhone +39 039 60541Fax: +39 039 6054477

GSM900 – Ordering information

Model number Description Licence book RX frequency TX frequency

ETM910A-12-D TMA, GSM900 GSM, 10 MHz w/AMPS rejection 905.5 to 915 MHz 950.5 to 960 MHz

ETM935E-12-D TMA, GSM900 EGSM, Full-band 35 MHz 880 to 915 MHz 925 to 960 MHz