We have a Fed Sig PA300 in one of our duty trucks. When the siren is turned on (power on, in manual mode), and you key the mic on the mobile (Motorola CDM1250) the siren activates itself.
From what the guys on shift have been telling me, this has been a problem for a couple years and the installation shop says it is in the siren box not the installation job.
Can someone help me out here. We would like to get this fixed.
Problem with Siren Unit
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Siren
You might also try by-passing all of the wires to ground with a small capacitor, such as a .01 uF. This used to fix many problems with high-power, low-band units when they were popular.
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