Home narda west GSM BAND FILTERS / DUPLEXERS For More Information Call: (916) 351-4500 GSM Band Duplexer * * * * * Passes Full GSM Band Rx / Tx High Isolation Low Insertion Loss Standard EIA Rack Mountable Optional Monitor Port DESCRIPTION Narda's GSM band Duplexers provide highly selective receive / transmit combining. These duplexers are designed to pass the full GSM receive and transmit bands while providing more than 75 dB isolation. The units have a 0.75 dB maximum passband insertion loss with 0.5 dB typical. 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. An optional monitor port which offers a -50 dB coupled signal for power monitoring is available on the GFD-21A-8289-02. This unit is provided with Type `N' female connectors. 7/16 DIN connectors available as an option (shown). SPECIFICATIONS MODEL NUMBER TOC GFD-21A-8996-01 / -02 (MONITOR PORT) PASSBAND RECEIVE TRANSMIT 890 - 915 MHz 935 - 960 MHz PASSBAND INSERTION LOSS 0.75 dB MAX PASSBAND LOSS VARIATION 0.4 dB MAX PASSBAND RETURN LOSS 14 dB MIN REJECTION ANTENNA TO RECEIVE DC - 768 MHz TRANSMIT TO ANTENNA 1500 - 2700 MHz 65 dB MIN 65 dB MIN ISOLATION RECEIVE TO TRANSMIT TRANSMIT TO RECEIVE 75 dB MIN 75 dB MIN POWER HANDLING1 CW PEAK MULTI CARRIER2 400 W 600 W 8 @ 10 W MONITOR PORT 50 5 dB (-02 ONLY) OPERATING TEMP 0 TO +65C STORAGE TEMP -20 TO +85C CONNECTORS TYPE `N' FEMALE SIZE 19" x 2.49" x 2U 482.6 mm x 63.2 mm x 2U 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 106 NOTES: 1Power handling (max watts) includes simultaneous conditions of antenna VSWR 2:1, altitude 10,000 feet, and case temperature of +50C. 2MULTIPLE CARRIER is defined as the number of carriers, n each at SEPARATE frequencies within the transmit passband applied simultaneously at the power level, p as indicated, completing the formula: n2 x p = Peak Power Handling. Home For More Information Call: (916) 351-4500 narda west GSM BAND FILTERS / DUPLEXERS TYPICAL MEASURED DATA OUTLINE DRAWING TOC 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 107