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
102
narda west
AMPS BAND FILTERS / DUPLEXERS
For More Information Call:
(916) 351-4500
AMPS A Band Duplexer
•Passes AMPS A Band Rx / Tx
•High Isolation
•Low Insertion Loss
•Standard EIA Rack Mountable
•Excellent Temperature Stability
DESCRIPTION
Narda West’s AMPS A Band Duplexer provides highly
selective receive / transmit combining. This duplexer is
designed to pass the AMPS A receive and transmit bands
while providing more than 120 dB isolation and 1.5 dB
maximum passband insertion loss with 1.2 dB typical.
This duplexer has been specifically designed for high
power applications. Power ratings are 400 watts CW
600 watts peak with multi-carrier powers of 8 carriers at
10 watts each. The unit is provided with Type ‘N’ female
connectors.
SPECIFICATIONS
MODEL NUMBER AFD-21A-8288-01
PASSBAND
RECEIVE
TRANSMIT
825 - 835 MHz
870 - 880 MHz
PASSBAND INSERTION LOSS 1.5 dB MAX
PASSBAND LOSS VARIATION 1.0 dB MAX
PASSBAND RETURN LOSS 14 dB MIN
REJECTION
ANTENNA TO RECEIVE DC - 810 MHz
TRANSMIT TO ANTENNA 900 - 1500 MHz
65 dB MIN
65 dB MIN
ISOLATION
RECEIVE TO TRANSMIT
TRANSMIT TO RECEIVE
120 dB MIN
120 dB MIN
POWER HANDLING1
CW
PEAK
MULTI CARRIER2
400 W
600 W
8@10W
OPERATING TEMP 0 TO +65°C
STORAGE TEMP -20 TO +85°C
CONNECTORS TYPE ‘N’ FEMALE
SIZE 19” x 4.19” x 2U
482.6 mm x 106.4 mm x 2U
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.
TOC
Home
