Blinder Output Signals

[skjjr]

I'm trying to figure a way to link the M25 Blinder on my motorcycle into my Intercom as I'm afraid I won't hear the audio alert at high speeds.

Can you help me by telling me the nature of the "signals" or voltages on the Blinder Alert electircal output(s) are. Apparently there are 3:

- One goes to the LED to make it go from Green to Red
- One goes to the Speaker to make it sound off
- One goes to a cable that is intended to connect to the mute input of a radio (this one is of particular interest)

Thanks for any help of ideas.

Sam Jones

[steagall1000]

skjjr,

They can hook anything up with a Blinder.

http://www.speedcheetah.com/scshop/section.php?xSec=141


8)

[steagall1000]

This is great for bikers.

YouTube - Cheetah M25 Rider - Motorcycle Laser Jammer

[allyoops]

I replied in the Motorcycle section, but to the best of my knowledge, the only product on the market that can be used as an "Intercom Conversion Kit" for Blinders is our Wireless Fitting Kit (available from RadarBusters)

You plug the transmitter into the Blinder box under your seat and you put our little warning unit under your seat too, which can be hooked up to your intercom system with its standard headphone cable. This gives you an audio output that is compatible with all intercom systems, so you can actually hear jammer alerts on your bike.

I've personally tested it on Intaride and Autocom so I know it works well.

Ally

[skjjr]

Georgia Boy and Ally - Thanks for your responses. The Cheetah is certainly a nice unit but is really overkill for what I want to do as I want everyting hard wired.

I have determined that one of the 3 Blinder Alert Outputs is a MUTE (designed to mute a typical car radio) that I believe just provides a connection to Ground.

I'd still like to know what the other 2 outputs are - particularly the one to the audio alert. Is it an audio signal? OR is it just power and the audio is generated in the little speaker?

As you can see from the following I am pursuing one idea of tapping into my Escort but I would also like to be able to do it without the Escort by going directly to my intercom or to the Kenndy Cell Set I have. BUT I need to know what the Blinder Outputs are.

I Asked the "Blinder Guy" in a PM long ago but got no response. Is there anyone else that can help?
Thanks,
Sam Jones

Escort Approach:

I have an Escort 8500 and a Blinder M25 on my GL1800 motorcycle. The 8500 audio feeds into the motorcycle intercom via a Kennedy Cell Set Dual unit (with a Garmin 2610 on the other input).

The 8500 is mounted in the faring out of sight so I'm NOT using its Laser Detector circuitry.

I'm looking for a way to get my Blinder alerts into my intercom.

I have determined that one of the 3 Blinder Alert Outputs is a MUTE (designed to mute a typical car radio) that I believe just provides a connection to Ground.

What I'd LOVE to do is figure out how to use this MUTE output to trigger an alert in the 8500 which would then go into the intercom via the Kennedy Cell Set.

My QUESTION is - Can anyone tell me if there is a contact in the Laser part of the 8500 circuitry that I can tap into that by providing a Ground (or a simple +5V or +12V) to would trigger the 8500s Laser Audio alert.

I'm not an electronics expert but would guess that somewere in the Laser cricuit it "throws a switch" when it detects the Laser. I'd like to be able to do that from the Blinder output. I'm OK with soldering on my 8500 as I've already done it once to fix a broken audio out connection and the unit.

Any OTHER ideas would be greatly appreciated. I know it is possible to rig something up with a Blinder/Cheetah gismo but this is too expensive and complex for what I need as I want everything hard wired.

THANKS!
Sam Jones

[jimbonzzz]

My QUESTION is - Can anyone tell me if there is a contact in the Laser part of the 8500 circuitry that I can tap into that by providing a Ground (or a simple +5V or +12V) to would trigger the 8500s Laser Audio alert.

From what I know, in the 8500 the laser signal goes through some amp & cleanup circuits and then goes into the micro, which handles triggering the alerts. I don't know of any way to provide a simple voltage or ground to it to trigger a laser alert.

Perhaps the next best thing though is you might be able to make a cheap circuit (555 timer etc) to introduce pulses into the laser receiver, to make the 8500 "think" it's receiving laser causing it to alert...

[skjjr]

Thanks for your reply. It sounds like the Laser is just another input to the processor, thus not promising to be able to trick it.

I had another idea. If I use the Mute signal from the Blinder to trigger (open) a relay for a moment and run the 8500 power thru that relay it would restart the 8500 giving me the audio alert that I'm after. The 8500 is tied into my intecom via the Kennedy Cell Set, etc.

Anybody know why this wouldn't work?

Any leads on the type relay that would provide a momentary OPEN circuity on the secondary when it gets a ground signal on the primary?

Thanks for any help

[skjjr]

How about this one?

Wire power to the Escort through a SPDT Relay with BOTH of the output termianls going to the Escort. Thus it gets power if the coil IS or IS NOT activated. Then use the MUTE to provide a ground to the coil to activate it.

This would cause the relay to switch output power from the normally connected to the normally NOT connected terminal. However, during the switching, there would be a momentary loss of power that would reset the Escort thus triggering the start up sequence and its audio alert.

[ahmadr]

How about this one?

Wire power to the Escort through a SPDT Relay with BOTH of the output termianls going to the Escort. Thus it gets power if the coil IS or IS NOT activated. Then use the MUTE to provide a ground to the coil to activate it.

This would cause the relay to switch output power from the normally connected to the normally NOT connected terminal. However, during the switching, there would be a momentary loss of power that would reset the Escort thus triggering the start up sequence and its audio alert.

The delay would be too short.
If I were you, I would post the specs of the mute signal here. You might get some schematic help from members if they have the specs they need

[skjjr]

I'm trying to get spec on all the Blinder signals.

My current understanding is that the MUTE is just a path to ground. Not sure of this yet and not sure how many amps it could handle.

You are probably right on the relay being to quick to reset the Escort. I may try it with a big Automotive relay just to see. Another idea is a 2nd relay in series with a capacitor on the coil input to slow it down.

Keep the ideas coming.

Thanks,
Sam Jones