View Full Version : Aircraft radio to camcorder
03-31-2006, 03:31 PM
I have a Panasonic AG-DVX100A camcorder that I'd like to use in an aircraft. How do I get audio to it from the aircraft's intercom?
The camera has XLR inputs and RCS jacks:
AUDIO IN/OUT (input/output automatically switched)
Pin jacks X 2 (CH1, CH2)
Input: 316 mV, high impedance
Output: 316 mV, 600 ohm
INPUT 1, INPUT 2
XLR (3 pins) X 2 (CH1, CH2)
LINE/MIC switching, high impedance
LINE: 0 dBu
MIC: -50 dBu/-60 dBu (menu selection)
IIRC aircraft headset speakers (earphones) are 300 ohm (or 150 ohm/earphone wired in parallel. But I'm not an EE. Can the aircraft intercom simply be plugged into the camera? Or does it need some sort of impedance-matching device? Where would I get an adapter? News crews lack their cameras into the aircraft intercom all the time, so they must be available.
Bonus: How do I make the ohm symbol (omega) on a Mac?
03-31-2006, 03:32 PM
... and RCS jacks:
03-31-2006, 06:34 PM
Don't know if this helps but I've used my Sony DCR-VX2000 miniDV camcorder with a standard sport pilot headset/intercom system and it worked fine. Just used a standard ½" to ¼" headphone adapter cable and plugged it into the LINE IN (not the MIC) on the camcorder.
03-31-2006, 06:51 PM
Just used a standard ½" to ¼" headphone adapter cable and plugged it into the LINE IN (not the MIC) on the camcorder.
You mean 1/8" plug? Unfortunately I don't have one of those. Just the RCA and XLR. Is there a 1/4" to XLR cable?
03-31-2006, 07:18 PM
I assume I can just use this (http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=134174&is=REG&addedTroughType=search)?
04-01-2006, 12:28 AM
You can probably just use one of these. (http://www.amazon.com/gp/product/B00005T3GH/104-5764466-9639924?v=glance&n=172282) Attached to one of these (http://www.discountcarstereo.com/detail.aspx?ID=164). Then plugged in to a back-seat headset jack (the headset's definitely a 1/4" stereo jack, mic's a .205" stereo)
If you don't feel like putting your camcorder's recording abilities in jeopardy (though I doubt a difference in ohms with kill it) you could always find a cheap digital recorder to record any sounds from the headset, and edit them in digitally. Then all you need is a mic (which is most likely 3.5mm male) to 1/4" stereo cord, and it should plug right in. (I keep one of these cords in my flight bag, because one of our club's aircraft has a music input on the radio stack, and I can put on my MP3 player for those long cross-country flights.)
04-01-2006, 08:20 AM
Yes Johnny. You assume correctly. You will need a male to male 1/4 inch Phono cable, no biggie- Radio Shack stuff. Then plug the male 1/4 inch phono into the adaptor you show, and voila !
Assuming you have no impedance issues. It may be a cheap go-around if you DO have impedance issues, to run the 1/4 inch phono down to a 1/8 inch mic input plug and jack it into a standard issue cassette recorder. Tape the stuff, then digitize the audio tape and input it into FCP and bypass the DVX-100A totally. Just a thought.
Does it have to be synch?
04-01-2006, 09:52 AM
Yes Johnny. You assume correctly. You will need a male to male 1/4 inch Phono cable, no biggie- Radio Shack stuff...
Does it have to be synch?
I looked on the Radio Shack site, and all I found were adapters that went from high impedance to low impedance. The camera's manual says that the XLR inputs are high impedance. I did find that one at B&H, but they have that Sabbath thing going on so I couldn't order it.
Yeah, I'd like it to be in synch; so it would have to run into the camera.
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