Wireless strategy at DVinfo.net

Go Back   DV Info Net > The Tools of DV and HD Production > All Things Audio

All Things Audio
Everything Audio, from acquisition to postproduction.

Thread Tools Search this Thread
Old February 26th, 2008, 08:16 PM   #1
Inner Circle
Join Date: Jul 2002
Location: Albany, NY 12210
Posts: 2,610
Wireless strategy

What's a better bet when working in a crowded RF environment like New York City? A bunch of AT1800 systems in different blocks, or just a couple of high end Lectrosonic units in a few different blocks? I'm asking this question from a standpoint of reliability alone. Would it be safer knowing I could switch out to different frequencies depending on the day and location, since I could buy a bunch of the ATs for the price of a single Lectrosonic unit, or just stick with the more expensive system, even though I don't have any backups.
Marco Leavitt is offline   Reply With Quote
Old February 27th, 2008, 02:13 AM   #2
Join Date: Apr 2006
Location: United States
Posts: 1,157
in a noisy RF environment, higher transmitter output always wins. 100mw vs 30mw and you know what gets my vote. no matter how fancy the receiver, if the good signal is hotter then the noise, you've got a better shot at getting good sound. I've used lectros all over NYC without issue, including the rainbow room 63rd floor. as for which block, go visit lectro's site for freq recommendations.

no matter how fancy the receiver front end, if there is RF on the frequencies you want to use, you only have a couple of options -
1. hotter transmitter output to overcome other signals
2. move the entire receiver closer to get a hotter signal
3. get antenna close, run coax to receiver. good for 50-100ft without worry if you have proper coax.

being sure your antenna's are both in the same plane ( vertical ) helps too, as does being able to move the reciever around a bit. if its close, 10-30 ft all should be good with most setups, but if you want to go farther away, thats when raw RF output counts.
Steve Oakley is offline   Reply With Quote
Old February 28th, 2008, 06:14 AM   #3
Inner Circle
Join Date: Nov 2004
Location: Baltimore, MD USA
Posts: 2,317
I mostly agree with Steve if we are limiting the conversation to on-channel interference but solid performance is also about receiver specs. For example, the Audio Ltd. 2040 wireless mics don't have the power of the 250 mW SMQ Lectro, but I got a lot farther distance with the Audio Ltd. 2040.

You may ask whether distance and RF density closer to the transmitter can be equated. I think the question can be argued. But I do know that RF is not directly proportional, IOW, a 100 mW wireless does not have twice the coverage area of a 50 mW wireless.

Add to that the vagaries other than direct frequency competition, when the RF problem is not on-channel but from an IF or from the interaction of two frequencies that create a third frequency that causes the interference, and you quickly come to the conclusion that getting a solid answer is almost impossible until you compare the two in a real situation.


Ty Ford
Ty Ford is offline   Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

Omega Broadcast
(512) 251-7778
Austin, TX

(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

(800) 238-8480
Glendale, CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > The Tools of DV and HD Production > All Things Audio

Thread Tools Search this Thread
Search this Thread:

Advanced Search



All times are GMT -6. The time now is 04:22 AM.

DV Info Net -- Real Names, Real People, Real Info!
1998-2015 The Digital Video Information Network