Kage ( in the j-pole vs diapole thread), and Wikipedia make a good point about stereo not being broadcast range friendly.
(from wiki. For stereo FM, the range is significantly reduced. This is due to the need to lower the modulation index of the main (sum) signal to accommodate the presence of the 38 kHz DSBSC subcarrier and 19 kHz pilot tone. S So my question to you's is how does this affect my listening audience? is mono ok for quality pirate? I know mono would be easier on the wallet when I purchase my new transmitter( yes I've decided to go big or go home, Hey wait I am at home) any insight into the mono vs stereo debate will help me decide on my next purchase... Thanks Guys(girls?) Sixer
Hey, what is this Text Enhance thingy that keeps linking my words to useless stuff?
Actually dude, if your fixing to work with 150 watts off a 5/8 GP or even a J-Pole at 30+ feet up, you don't have to worry about what stereo does vs running it mono. There is plenty of power there to more than make up for any sum subtraction made by the insertion of a pilot tone and a sub carrier.
It is only a real concern when your working with very low power levels like the limit in 15.239, a ridiculous and useless limit I might add.
At that less than a flea fart influence power level, you need every squirt of stink you can push out that ass end of the antenna just to have a half usable signal, and is why its best to run mono in such setups.
Peace!
K-ROCKS RadioOne
ZeroPointRadio
AM Stereo 1670
FM Stereo 92.1
There are still some radio stations where I live that switch to mono when running talk or old mono only music, and then flip the stereo pilot on when broadcasting stereo music. In fact I believe at one time the FCC required that stations do so but was dropped somewhere along the line. We have a NPR station here that does mono only which helps great with their range, however they are talk only so being in stereo would be a waste for them anyways.
I once thought about adding a relay circuit to my transmitter that would switch the pilot on/off and then running a control wire to my mixer board where its mono/stereo switch is so that I could just hit that button and make the transmitter do its thing. I realized the work involved in doing so wouldn't really be worth my while but I thought it would be a neat idea.
I once thought about adding a relay circuit to my transmitter that would switch the pilot on/off and then running a control wire to my mixer board where its mono/stereo switch is so that I could just hit that button and make the transmitter do its thing. I realized the work involved in doing so wouldn't really be worth my while but I thought it would be a neat idea.
I used an infrared remote control kit and fitted that to both my AM C-QUAM transmitter and FM Stereo transmitter.
Got full control of both, including both transmitter's stereo or mono modes.
The expansion to that project is fitting remote power level control, eventually completed with metering at the console.
A piece from here, a piece from there...junk sure comes in handy!
Peace!
K-ROCKS RadioOne
ZeroPointRadio
AM Stereo 1670
FM Stereo 92.1
My station's internet streams will be encoding the audio directly from a Sony ST-JX220A tuner. There is no processing of any kind on the output of the tuner or in the encoding computer. Let your enhancements be in control just as if that tuner was connected to your audio system!
It's AMazin.
Peace!
K-ROCKS RadioOne
ZeroPointRadio
AM Stereo 1670
FM Stereo 92.1
The station that I give technical help to transmits in mono. The fellow is using a high quality exciter. In my experience, a quality exciter is more important than the stereo or mono choice. His station really sounds great mono! I was listening to it lately on a newer model car radio while in the vicinity of the station. At his power level and antenna height, I told him it just didn't justify the cost and effort to go to stereo.
I do agree though, if you already are putting enough effort and money in to go to higher transmit power, and have a good antenna height for very good coverage, you might as well go stereo.
When your ready to go stereo get this stereo encoder off ebay, its a nice stereo encoder with filtering at a reasonable price, you don't need to spend big bucks to get good quality audio, i have a couple and they sound great and there in use 24/7, it's a decent encoder that does the job.
When your ready to go stereo get this stereo encoder off ebay, its a nice stereo encoder with filtering at a reasonable price, you don't need to spend big bucks to get good quality audio, i have a couple and they sound great and there in use 24/7, it's a decent encoder that does the job.
Hey Jaxx: I am already stereo but I thought I could get more range with my new transmitter if I bought a mono transmitter, but it sounds like I'll be good to go If I run a stereo tx with a lot of power. The transmitter I am looking at is 100 watts so I think I'll be good to cover my intended area. Thanks for the input... Sixer Sinner Radio
I would also run your OTR mono. I assume that the recordings are mono anyway, and also pretty much limited to maybe 10khz audio at best. I think I would set the audio processor to start limiting at 10k.
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