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Now wireless communications systemdesigners and engineers can get multi-band performance and protection fromdamaging lightning strikesin a single,combined bias tee and surge arrestor.

The Arrestor Plus Bias Tee allows theinjection of dc current to the center con-ductor of the cable, allowing current totravel to the top of the tower to power theequipment. A dc isolation circuit isincluded for improved RF to dc isolation.In addition to providing an input port fordc power, this product protects equipmentfrom damaging transients induced bylightning strikes. The Arrestor Plus Bias Teeprovides excellent return loss across the806960 MHz and 17102170 MHzfrequency bands, along with excellent

806960 MHz and 17102170 MHz

N E W P R O D U C T

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

Combines bias tee and

surge protection in onemultiband unit.

One Company. A World of Solutions

Arrestor Plus Bias Tee

intermodulation distortion (IMD). The unit isideal for both expanded systems as wellas systems upgrading to multibandapplications.

Combination bias tee surge arrestor

Excellent return loss

Excellent IMD

Suitable for indoor and outdoorapplications

Low insertion loss

Standard SMA interface for dcinjection port

ABT-DFDM-ADB

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All designs, specifications, and availabilities of products and services presented in this bulletinare subject to change without notice.

Bulletin PA-100238-EN (4/05) 2005 Andrew Corporation, Orland Park, IL 60462 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

Arrestor Plus Bias Tee ABT-DFDM-ADB

S P E C I F I C AT I O N S

One Company. A World of Solutions.

Electrical

dc test maximum voltage . . . . . . . . . . . . . . . . . . .30

Continuous dc current, amps . . . . . . . . . . . . . . . .0.50

3rd order IM, product typical, -dBm . . . . . . . . . . .116

3rd order IM test method . . . . . . . . . . . . . . . . . . .Two +43 dBm carriers

Nominal impedence, ohms . . . . . . . . . . . . . . . . .50

Multiple strike capability . . . . . . . . . . . . . . . . . . .10

dc port RF isolation, dB . . . . . . . . . . . . . . . . . . . .70.0

Insertion loss, max., dB . . . . . . . . . . . . . . . . . . . .0.10

Return loss, dB806960 MHz . . . . . . . . . . . . . . . . . .26.417102170 MHz . . . . . . . . . . . . . . . .26.4

Power Supply

Voltage range, volts . . . . . . . . . . . . . . . . . . . . . . .-30 to +30

Maximum current, amps . . . . . . . . . . . . . . . . . . .0.50

Mechanical

Coupling nut retention force, N (lb) . . . . . . . . . . .2,000.0 (449.6)

Minimum coupling nut torque, N-m (lb-in) . . . . . .25.0 (221.3)

Interface durability (number of cycles) . . . . . . . . . .50

Environmental

Moisture resistance test . . . . . . . . . . . . . .MIL-STD-202, Method 106

Mechanical shock test . . . . . . . . . . . . . .MIL-STD-202F, Method 213B,. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Test Condition C

Corrosion test. . . . . . . . . . . . . . . . . . . . .MIL-STD-202, Method 101,. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Condition B

Thermal shock test . . . . . . . . . . . . . . . . .MIL-STD-202, Method 107,. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Condition A-1, Low Temp. -55C

Operating temperature range, C . . . . . .-40 to 85

Storage temperature range, C . . . . . . . .-40 to 85

Immersion test, mated connectors . . . . . .IEC 529:1989,IP68

Immersion depth, m . . . . . . . . . . . . . . . .1.00

Water jetting test, mated connectors . . . .IEC 529:1989,IP66