RVR Transmitters

[OKCRadioGuy]

There's the problem. Omnia needs to go to the tower. If the box it's in sucks you need to consider a better box. DDB makes some fine ones, even some with air conditioners attached. http://www.ddbunlimited.com/?gclid=CLPzl92RmpMCFQ-9IgodXBwSrg Here's the path you need to take. Audio out of your console or whatever, then into the EAS box, then in to the GE fiberlink system. At the 'transmitter site' the Left-Right audio from the GE fiberlink out needs to go into the Omnia One. The BNC MPX composite out from the Omnia One (with pre-emphasis turned on in the Omnia!) goes right into the MPX/Composite in on your RVR transmitter. You should now have decent audio if the levels are set right. Take that other thing you have and put it on the shelf or send it to surplus... Right now you don't want it in the circuit. Whatever you do, you HAVE to have the Omnia a the tower to easily get decent stereo generation. It can be done otherwise, but not without re-inventing the wheel.

 

[DJRobbioRobbio]

OK...

I see.

I bet you're getting a fair amount of overshoot from that setup, which is probably overmodulating on the high frequencies. Especially if the sample rate is 44.1 kHz or lower. That explains a lot about the issues you're hearing. Any DC coupling in any of the Fiber units will also compromise bass performance as well. Especially the deep lows. You can EASILY end up with a bass tilting problem, causing overmodulation on deep bass, even though it doesn't *sound* like there is much bass there.

-C

I was under the impression that general over modulation of high or low frequencies would produce unfavorable transmitting anomalies such as "breathing" and "pumping", which isn't really what we were getting, the bass just was really...for lack of a better term, 'out of it'.


However Cornelius, upon taking a good deal of the advice you mentioned earlier about our setup and the processing, we're actually sounding really good. Now here's the funny part, I didn't even have to keep the Omnia out at the transmitter box =P

What I really want to do though is switch the order in how certain things are done in the audio chain (e.g. putting the EAS before the processor).

However, I think my next project will be trying to convince our bonehead of a station director (who thinks a power conditioner is also a voltage regulator because the LED display on the front of our Furman's has numbers on it....) that we need to get a different EAS, though from what I hear the update to that system is coming soon, so we're almost just better off waiting until it's activated. Anybody have updates on this?