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Hamplus
Copyright © 2008
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Antenna
Switcher with 8 inputs by two output remotely controlled.
- This switcher
has one internal interlock system to prevent switch the same antenna
on both radios at the same time.
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Aluminum cabinet painted in the dark gray color, having 10 UHF
type (PL-259) for the R.F connections and one DB-25 for remote
control.
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All
antenna inputs are switched to ground when not in use.
- When the
power are switched off, all antenna inputs are routed to ground
for protection purposes.
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Specification:
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Size:
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Width
26cm - Height 6cm - Deep 17cm
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Power
Supply:
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D.C. 14
Volts + or - 20% drain about 35mA
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Max.
power allowed:
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3000 Watts
with S.W.R. equal or less than 1.5:1
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Frequency
of operation:
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D.C.
to60MHz |
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Time
delay to switch:
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Equal
or less than 50ms (exchange forbidden during TX) |
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Insertion
loss:
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Equal or less than 0,01dB |
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Crosstalk:
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Equal
or less than -72dB to 30MHz and -58db to 60MHz.
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Connections suggestions:
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antennas, one or two radios. |
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| The switcher AS-82 receives the signals from eight antennas selecting
one of them for each radio (two of then), leaving the others not in
use, shorted to ground. In the case of power supply disconnection,
the radios became free and all antennas are grounded.
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| Eight
antennas, three or more radios. |
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| One or more switcher AS-81R can be connected before the AS-82 as
shown above, allowing to share up to eight antennas between two or
more equipment. For each added switcher AS-81R, can be possible the
use one more radio, sharing the same set of antennas.
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| 16 antennas solution diagram |
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