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www.duplexers.eu
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| PF8-2HAM-100, PF8-2HAM-250 | PF8-3HAM-300 |
| | Electrical specifications
| Model |
PF8-2HAM-100 |
PF8-2HAM-250 |
PF8-3HAM-300
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| Operating frequency band, MHz |
144-146 |
144-146 |
144-146
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| Insertion loss (adjustable), dB |
1-5 |
1-5 |
1,5-6
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| Max. frequency bandwidth, kHz |
100 |
250 |
300
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| Impedance, Ohm |
50 |
50 |
50
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| Attenuation |
see fig. |
see fig. |
see fig.
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| VSWR, not more than |
1,2 |
1,2 |
1,2
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| Input power, not more, W |
not more than 300
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| Temperature range, °C |
from -30 to +60
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| Cavity electrical length |
1/4λ |
1/4λ |
1/4λ
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Mechanical specifications
| Model |
PF8-2HAM-100 |
PF8-2HAM-250 |
PF8-3HAM-300
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| Diameter, mm (ins.) |
206 (8")
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| Weight, kg |
7.2 |
7.2 |
10.5
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| Connector |
N-female |
N-female |
N-female
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| Mount to 19-inch rack |
present
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| Length/Width/Depth, mm |
800x480x210 |
800x480x210 |
800x480x420
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Usually in conditions of large megacities and even in rural territories if there are near established base station of land mobile radio noises level are very high. At communications with reflection from the Moon, when power of a signal are very weak a important aspect is a signal to noise ratio. This we can achieve only then if use high selective filters. These filters made by coaxial cavities.
We bring to your attention filters, assembled from 5,8 and 10 inches cavities.
Typical selectivity characteristics PF8-2HAM-100
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| Span 1 MHz | Span 10 MHz |
Typical selectivity characteristics PF8-2HAM-250
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| Span 1 MHz | Span 20 MHz |
Typical selectivity characteristics PF8-3HAM-300
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| Span 1 MHz | Span 20 MHz |
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