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DPF8-4V
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DPF8-6V
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| | Electrical specifications
| Model |
DPF8-4V |
DPF8-6V
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| Operating Frequency band, MHz |
140-174
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| Insertion loss (adjustable) not more, dB |
1,5 |
2
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| Frequency separation TX/RX (min), MHz |
3,5 |
1,5
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| Impedance, Ohm |
50
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| Isolation, not less, dB |
55 |
63
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| VSWR, not more than |
1,5
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| Input power, not more, W |
not more than 300
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| Temperature Range with garanted stabilization, °C |
from -30 to +60
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| Cavity electrical length |
1/4 λ
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Mechanical specifications
| Model |
DPF8-4V |
DPF8-6V
|
| Diameter, mm (ins.) |
206 (8")
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| Weight, kg |
14 |
21,3
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| Connector |
N-female
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| Mount to 19-inch rack |
yes |
yes
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| Length/Width/Depth, mm |
800x480x420 |
800x650x420
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8-inch cavities with higher Q-factor are used when duplexer, assembled on 5-inch cavities, unable to provide appropriate isolation because of low frequency separation TX/RX.
Increase in the number of cavities (in duplexer DPF8-6V case) leads to gain slope increase and to decrease of receiver desensitization.
Typical duplexers response curves
DPF8-4V
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DPF8-6V
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