Frequency

[SteveCzwortek]

I'm building a remote setup for my D300.
I've got the Infra red break-beam sensor built and am building a small radio transmitter to send a signal to my Hahnel reciever. A signal generator will go between the two but I need to know what signal to send, does anyone have an idea?
Many thanks
Steve Czwortek

[cosmicma]

the chances are it's gonna be a digital pulse the carrier frequency should be easy enough to find though

i looked into a diy infra red trigger a while ago and the easiest ( cheapest ) option i could come up with is to use a shutter release cable with a relay to act as a switch obviously controlled by the infra red trigger
the lengh of cable could easily be 10 metres which i think would be more than enough after all the idea is so you can get up close in the first place
well that was my idea any way...

[SteveCzwortek]

Yes, the frequency of these things is listed on many ads and I'm building a small transmitter to do that. The Infra red trigger will switch on a "pulse generator" (((????))) but its that pulse which I'm having problems with.