Wireless Flash Signals

Cabled, wireless, studio - anything do with using flash
Kenneth B
Acolyte
Posts: 4
Joined: Tue Jun 24, 2008 5:05 pm

Wireless Flash Signals

Unread postby Kenneth B » Mon Jul 21, 2008 3:48 am

I've recently started using radio poppers with my Alpha and two flashes. The poppers work great, but on occasion they pick up some radio interference and it causes the flash to pop similar to when you hit the AEL button. I'm trying to capture the codes used to communicate to the flashes. Has any one done this or do you have any ideas how I could do this.

Thanks

Javelin
Emperor of a Minor Galaxy
Posts: 1892
Joined: Wed Jul 16, 2008 4:51 pm

Re: Wireless Flash Signals

Unread postby Javelin » Mon Jul 21, 2008 4:12 am

The only thing that comes to mind is using a light sensitive diode and an oscilloscope to capture the flashes

Kenneth B
Acolyte
Posts: 4
Joined: Tue Jun 24, 2008 5:05 pm

Re: Wireless Flash Signals

Unread postby Kenneth B » Mon Jul 21, 2008 4:33 pm

That's what I was thinking. I can get access to an oscilloscope I just wasn't sure if a run of the mill diode would respond fast enough.

BTW I'm trying to get this info so they can use it when trying to tune out the interference.

Javelin
Emperor of a Minor Galaxy
Posts: 1892
Joined: Wed Jul 16, 2008 4:51 pm

Re: Wireless Flash Signals

Unread postby Javelin » Mon Jul 21, 2008 4:47 pm

Well you should see the ramp up and ramp down with the diode. the part may add a little overhead to that but same being same i'm sure it's just a diode of somesort in the flash decoding the flahses anyway. even if it's a diferent faster type in the flash you'll still get all the peaks you need.


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