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Introduction:
The call sign used at this
site is SNB. This system consists multiple transceivers
operating four bands with two rack mounted power amplifiers. This site
receives the link signal on 223.500 and retransmits that
signal to 147.480 simplex, 444.450 duplex, and 053.450, which
is part of the 6m split site repeater. A signal received on
the 70 cm repeater on a frequency of 449.450 will be
retransmitted on 444.450, 223.500, 147.480 and 053.450
simultaneously. A signal received on 147.480 will be
retransmitted on 444.450, 223.500 and 053.450
simultaneously.
The
transmitter on the frequency of 147.480 is connected to a
continuous duty rack mounted amplifier with an output level of
30 watts. The antenna is a two bay folded dipole fed with
hardline. An Astron 50 amp power supply supplies DC power as
well as trickle charging the battery bank.
The transmitter on the
frequency of 444.450 is connected to a continuous duty rack
mounted amplifier with an output level of 40 watts. The
amplifier is connected to a 350 watt rack mounted duplexer. The
antenna is a four bay folded dipole fed with hardline. An Astron
50 amp power supply supplies DC power as well as trickle
charging the battery bank.
The transmitter on the frequency of 223.500 is connected
directly to the antenna which is a three element yagi. An Astron
50 amp power supply supplies DC power as well as trickle
charging the battery bank.
The transmitter on the frequency of 053.450 is connected
directly to the antenna which is a folded dipole. An
Astron 50 amp power supply supplies DC power as well as trickle
charging the battery bank.
The transmitter on the frequency of 144.390 is connected
directly to the antenna which is a two bay folded dipole.
This system
operates from the public power grid as a primary means of
electricity which supply two Astron 50 amp power supplies.
Six golf cart batteries supply the back up power. The Aprs
computer operates from an Inverter. During
extended grid power failure the low voltage disconnects will
shed the high current devices. Eight hour grid power
failures are common at this site, the batteries easily
handle this interruption.
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