107 WOODMERE ROAD • FOLSOM, CA 95630
TEL: (1) 916 351-4500 • FAX (1) 916 351-4550
E-MAIL: nardawest@L-3COM.com • www.nardamicrowave.com
100
narda west
AMPS BAND FILTERS / DUPLEXERS
For More Information Call:
(916) 351-4500
AMPS Band Microcell Duplexer
•Passes AMPS Rx / Tx Bands
•High Isolation
•Low Insertion Loss
•Small Footprint
•Excellent Temperature Stability
DESCRIPTION
Narda West’s AMPS Band Microcell Duplexer provides
highly selective receive / transmit combining. It is
designed to pass the full AMPS receive and transmit
bands while providing more then 50 dB isolation. The unit
has a 1.0 dB maximum passband insertion loss with
0.75 dB typical. Specifically designed for high power
applications, this duplexer has power ratings of
20 watts CW, 200 watts peak, with multi-carrier powers
of 10 carriers at 2 watts each. It is provided with both
Type ‘N’ and SMA female connectors.
SPECIFICATIONS
MODEL NUMBER AFD-21A-8289-30
PASSBAND
RECEIVE
TRANSMIT
824 - 849 MHz
869 - 894 MHz
PASSBAND INSERTION LOSS 1.0 dB MAX
PASSBAND LOSS VARIATION 0.4 dB MAX
PASSBAND RETURN LOSS 14 dB MIN
ISOLATION
RECEIVE TO TRANSMIT
TRANSMIT TO RECEIVE
50 dB MIN
50 dB MIN
POWER HANDLING1
CW
PEAK
MULTI CARRIER2
20 W
200 W
10@2W
OPERATING TEMP 0 TO +65°C
STORAGE TEMP -20 TO +85°C
CONNECTORS TYPE ‘N’ FEMALE
Rx/Tx: SMA FEMALE
SIZE
8.50” x 2.53” x 2.4”
215.9 mm x 64.4 mm x
61.1 mm
NOTES:
1Power handling (max watts) includes
simultaneous conditions of antenna VSWR
£2:1, altitude £10,000 feet, and case
temperature of £+50°C.
2MULTIPLE CARRIER is defined as the
number of carriers, neach at SEPARATE
frequencies within the transmit passband
applied simultaneously at the power level,
pas indicated, completing the formula:
n2x p = Peak Power Handling.
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