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Base Station Duplexers |
Model P4440E |
The P-4440-E combines the low loss of a Res-Lok™ aperture-coupled filter on transmit, with the high selectivity of a combline filter on receive, making it the ideal choice for single antenna operation of trunking base stations. The Res-Lok™ 4-cavity bandpass section has typically 0.5 dB insertion loss and provides 50 dB of noise suppression, which, when added to the typically 35-40 dB noise suppression provided by most cavity ferrite transmitter combiner, results in nearly 90dB noise suppression overall. The 6-pole combline filter on the receive side provides over 85 dB carrier suppression, a figure that is more than adequate for most system applications. In addition, both the transmit and receive bandpass windows are a full 15 MHz wide, a fact which allows sparing of this component on a multi-site basis without the need to have facilities for retuning. |
SPECIFICATIONS |
| Electrical Specifications | P-4440E | P4440E-2 | |
| Frequency Range | MHz |
806-894 |
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| Frequency Separation | MHz |
45 |
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| Bandwidth(approx.) | MHz |
15 |
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| Insertion Loss | dB |
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| Tx to Ant. | 0.5 typ. |
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| Rx to Ant. | 1.2 typ. |
0.5 typ. |
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| Isolation | dB |
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| Tx noise suppression at Rx | 50 |
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| Rx isolation at Tx | 85 |
50 |
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| Maximum Input VSWR | 1.5:1 |
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| Maximum Input Power | Watts |
400 |
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| Termination | 'N' Female |
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| Temperature Range | -30�C to +60�C |
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| Mechanical Specifications | P-4440E |
P-4440E-2 |
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| HEIGHT | in (mm) | 7 (178) |
8.75 (222) |
| WIDTH | in (mm) | 19 (483) |
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| DEPTH | in (mm) | 8.25 (210) |
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| WEIGHT | lb (kg) | 15 (6.80) |
25 (11.3) |
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WISCO International, Inc. -
MIAMI, FL U.S.A. Fax: (954) 370-3997 | E-mail: wiscointl@wiscointl.com |
