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DPR4-4U
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DPR8-4U
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| | Electrical specifications
| Model |
DPR4-4U |
DPR8-4U
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| Operating Frequency band, MHz |
400-490
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| Insertion loss (adjustable) not more, dB |
1,5
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| Frequency separation TX/RX (min), MHz |
1,6 |
1,5
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| Impedance, Ohm |
50
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| Isolation, not less, dB |
75
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| VSWR, not more than |
1,5
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| Input power, not more, W |
not more than 200
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| Temperature range, °C |
from -30 to +60
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| Cavity electrical length |
1/4λ
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Mechanical specifications
| Model |
DPR4-4U |
DPR8-4U
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| Diameter, mm (ins.) |
110 (4") |
206 (8")
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| Weight, kg |
6 |
8,3
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| Connector |
N-female
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| Mount to 19-inch rack |
yes
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| Length/Width/Depth, mm |
360x480x150 |
360x480x420
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DPR4-4U is a classical band pass-reject duplexer for manufacture of single-channel UHF, separation between receiving and transmission frequency here is 5-10 MHz, repeater.
Duplexer narrowband characteristic provides higher selectivity of repeater receiving section and attenuates transmitter out-of-band radiation better, than in common mobile duplexer case.
Typical duplexers response curves
DPR4-4U
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DPR8-4U
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