Jut got a set of Senny G2's in and wondering about some settings. First, we do allot of interviews with two mics. Can I use two transmitters on the same channel and one reciever? Or should I use two transmitters and two recievers on different channels? Last, what af out and sensitivity settings are you guys finding to be a good choice? We usually have one talent with a loud voice while the other is a softer voice. Thanks.

Two Transmitters // Two Receivers. Each system on a different frequency. Use the scan function to select frequency(s).

Generally... -10 or -20dB sensitivity settings on the transmitters. Depending on factors such as: mic being used, SPL, ect. The transmitter DOES have a level meter and peak indicator LED.. Set as high as possible WITHOUT ever pinning the meter or lighting the peak indicator..
Recv. AF setting: "Normally" -18 or -24dB works good on a "mic level" XLR input.

You need a transmitter and a receiver for each unit on each own channel. The only way to mix 2 or more mics is a audio mixer.

When I bought my first Sennhieser G2 units (before upgrading to my Lectrosonics units) I had to drop the sensitivity, when I first tried them out they were set to hot.

You cannot use two transmitters on the same frequency - they will fight.

Use two transmitters on two separate frequencies to separate receivers.

(you can, though, use as many receivers as you want - eg: to feed one transmitter to several cameras)


Sensitivity - 0 or -10 is best for speech. -20 is for very loud speech or vocals and -30 is for loud vocals - rule of thumb.

As others have mentioned, with the Sennheiser G2, it's one Transmitter to one Receiver. Think of it like the radio in your car, you wouldn't want two broadcasts overlapping.
Audio Technical does make a portable dual receiver, which has two receivers in one chassis.

In regards to setting the Transmitter Sensitivity, it will largely depend on where the mic is placed on the talent, how loud they speak, and how loud they will become during the actual shoot. I always check the VU meters while asking, "Could you please count to 10....now in your loud voice" watch the Peak. Start at -30 and work your way up, John has a good rule of thumb in his post above.
Also, it's a good idea to record a sample of the audio and play it back before you proceed with the entire shoot to make sure you are getting the type of quality that you're after.

As others have mentioned, with the Sennheiser G2, it's one Transmitter to one Receiver.

With *every* system - all radio systems all manufacturers - you can't change the laws of physics.


With any transmitter you can have as many receivers as you like.

But you cannot have more than one transmitter on the same frequency in the same area at the same time.

Yeah, I figured that I would need to have a receiver for each transmitter and run them on different channels. Thats what I did last night and had the settings pretty similar to what was suggested and got great clean audio. Thanks.