Spectra Ignition Sense in RSS

Dennis · Post by **Dennis** » Mon Dec 25, 2006 1:50 pm

I have a remote mount mid power A-4 head that I want to ignition sense the siren unit. I have the green wire to the battery and the orange to ignition sense. I do not want the radio itself on ignition sense but can't find this option in the rss. Other posts have said it's in the radio wide area of the rss but I only find the PTT option.
Any and all help appriciated.

Merry Chritmas to All

Dennis

RKG · Post by **RKG** » Mon Dec 25, 2006 7:45 pm

Ignition sense with a rear-mount Spectra is not done by RSS but by the green and orange wires, per a matrix in the Spectra Installation manual. I don't recall all of the combinations from memory.

Dennis · Post by **Dennis** » Mon Dec 25, 2006 8:17 pm

The green wire is for battery positive, the orange wire is for ignition sense. That works ok, the problem is I want the siren on ignition sense and the radio not. Maybe this isn't possible.

Dennis

RKG · Post by **RKG** » Tue Dec 26, 2006 5:55 pm

According to the installation manual, you have three choices:

Both Green and Red to battery (i.e., full time power): "no ignition switch control."

Red to battery and Green to switched source: "Xmtr ignition switch controlled."

Both Red and Green to switched source: "Complete radio ignition switch controlled."

"Note: in cases where alternator whine or interference is a problem, isolate the green lead with a relay." (The diagram shows a relay the coil of which is pulled in by the ignition switch, but when pulled in runs the green wire directly to the battery.)

68P81070C85-B, at p. 9.

Will · Post by **Will** » Tue Dec 26, 2006 8:53 pm

There are some options in the control head depending on the circuit board revision.

The siren box gets it's on signal from the Spectra when it powers up.
I do not think there is an easy way to enable the Siren only with IGN.

But I will look at some of my notes to see if there IS a way.

If so, it would prevent anyone from running the siren without the key.
Every time one of the FED cars had to go to the car dealer, I pulled the 'green lead'.