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 Digital image distortion by radio frequency interference? 
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Joined: Tue Aug 26, 2008 3:30 am
Posts: 824
Location: Sydney, Australia
Post Digital image distortion by radio frequency interference?
Has anyone ever had problems with radio frequency interference while shooting digital images?

I haven't experienced it, but was wondering what the affect would be on a digital image sequence? ..... sometimes my good shooting vantage spots are on top of city building roofs with lots of telecommunication equipment and transmitter aerials nearby. (I remember often hearing that electronic "buzz" when I shot film)

i guess RFI could also occur if your conrol gear wasn't shielded correctly?

Thu Dec 04, 2008 3:24 pm
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Joined: Tue Jul 08, 2008 12:36 pm
Posts: 1787
Location: Antarctica/California/New Zealand
Post Re: Digital image distortion by radio frequency interference?
As a general guide, never get in front of any dish antenna that transmits. Some of the bigger ones it is quite common to find piles of dead birds in front of them that have landed on the antenna, got fried, and fallen off. Off to the sides of a dish you are fine.
Most other consumer level commercial VHF / UHF transmitters & radio repeaters you would see on top of a building you are fine if you put a few feet between you and the antenna.
The big transmitter towers that transmit the local TV / Radio channels you don't want to be near the antenna if it is active. Most them have lock-outs that need to be engaged before climbing the tower.

Some of the older cell phones that have 3 watt transmitters are strong enough to screw up electronics at close range. It would really depend a lot on the camera design as to how sensitive it is.

Anthony Powell
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Sat Dec 06, 2008 1:37 am
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