4
Connectors
The unit has 3 external connectors:
1) Power, 12V, 0.4A
2) Trig input 1, coaxial TTL-levels
3) Trig input 2, coaxial TTL-levels
Both trig inputs require some drive capabilities on the trig-unit end, by using receivers from
ImpulseRadar, proper drive current is guaranteed. If other trig devices are uses, please refer to further
information under the Operations section. Note that both trig inputs are identical, active high-signals on
both will cause the unit to output an impulse of electromagnetic energy, however, trigs must always be
separated by ate least 3.2us, stipulated by the maximum trig-rate.
Operation
Single-receiver
The unit is protected against water, however, it’s not water-proof, for this reason it should be protected
from direct exposure to rain.
When operated together with a Raptor®45-Rx receiver, proper operation is always guaranteed. If the
unit, for some reason, is connected to a function generator or other device capable of delivering trig-
signals, means of ensuring that the nominal trig-rate is not exceeded must be taken. The unit is designed,
and certified, for operation at 312.5kHz trig-rate, maximum. Higher trig-rates are likely to permanently
damage internal circuitry, and will in any case not give higher output power, since the internal circuitry
will not have time to charge between every trig event.
In normal operation, the unit is connected to power, 12V 0.4A, and one of the coaxial inputs are
connected to the trig output of the Raptor®-45 receiver, see figure 1 below.
Figure 1, A Raptor®45-Tx connected to a receiver.
