cstauffer Posted September 7 Report Share Posted September 7 Hey everyone. I am wondering how far away from your lectro receivers should a T4 IFB Tx be so it does not reek havoc with them? Or is remoting the antenna from the T4 (short whip antenna with BNC connector popped right on the back of the T4 as of now) the best solution? Can an RF barrier be put inbetween if they have to live close to each other? Not sure what form that would take, but... Thanks in advance! CRAIG Quote Link to comment Share on other sites More sharing options...
The Documentary Sound Guy Posted September 7 Report Share Posted September 7 It depends how far the Tx block is from your Rx blocks. The farther the better. An inline RF filter on the Tx antenna that matches your Tx block can help keep your Rx blocks clean and make it possible to have them cooperate at a reasonable distance. Since you're using Lectro, it probably makes sense to use on of these: https://lectrosonics.com/product/pf25/ but they aren't the only ones on the market. Quote Link to comment Share on other sites More sharing options...
Johnny Karlsson Posted September 8 Report Share Posted September 8 If you’re on a cart, the beauty of the T4 is that you can get the unit in front of you, and run a coax up a mast to an antenna. A T4 puts out a 1/4 watt, so ideally you want it away from your receiver antennas. oh - and coordinate your frequencies, using Freqfinder, WD or similar! Quote Link to comment Share on other sites More sharing options...
Derek H Posted September 8 Report Share Posted September 8 Yes you’ll be fine as long as you stick to some guidelines as mentioned already. Frequency separation. Keep your transmit and receive channels separated by at least 1 block. More is better. This keeps the RF signal from the transmitter outside of the input filter of your receivers. The analogy I like is think of the receiver as someone trying to listen to someone talking across the room while you have a radio playing loudly right next to your ear. Keeping the frequencies separate is like turning that radio volume down so you can hear the rest of the room. Trying to receive on the same block you’re transmitting on will be nothing but problems. Physical separation of antennas. Even with good frequency separation I think it’s still a good idea to keep the transmit antenna physically away from the receiver antennas. I like to keep my fin antennas on a bar up on a mast and then the T4 antenna mounted on a different corner of the cart and keep them at different vertical heights as well. Some people keep them all on the same antenna bar but personally I try to space them out more. Good quality coaxial cables all-around and keep the feed lines no longer than they have to be with just a little extra for slack. Also, I don’t believe in using a patchbay for RF connections. I always plug the cables directly from unit to antenna with nothing in between. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.