That was never a part of the original 1949-1987 Fairness Doctrine anyway, so I doubt you will have anything to worry about even in the snowball's chance in Hell that it makes a comeback.William C. Walker said:3) Let's hope we don't see ANY kind of legislation demanding that private broadcasters must air programs they deem as either unprofitable or not in the best interest of serving the market.
Most Part 15-spec antennas are not broadband antennas anyway. You can crank your bandwidth and pre-emphasis to the max, and you still won't sound as bright and crisp on the air as the commercial 10 kHz NRSC stations; you'll just be making a lot of splatter across the band.jry said:I agree with cutting the high end. My suggested number is 7.5. It works well with car radios and if someone has a higher end AM tuner, they won't be too disappointed.
Like they said, pack your audio energy in the envelope that radios can "hear". You'll think that you have expanded your coverage area.
AND you will be wasting energy that could have been useful radiation if you'd kept the bandpass lower.satech said:Most Part 15-spec antennas are not broadband antennas anyway. You can crank your bandwidth and pre-emphasis to the max, and you still won't sound as bright and crisp on the air as the commercial 10 kHz NRSC stations; you'll just be making a lot of splatter across the band.jry said:I agree with cutting the high end. My suggested number is 7.5. It works well with car radios and if someone has a higher end AM tuner, they won't be too disappointed.
Like they said, pack your audio energy in the envelope that radios can "hear". You'll think that you have expanded your coverage area.
satech said:Most Part 15-spec antennas are not broadband antennas anyway. You can crank your bandwidth and pre-emphasis to the max, and you still won't sound as bright and crisp on the air as the commercial 10 kHz NRSC stations; you'll just be making a lot of splatter across the band.jry said:I agree with cutting the high end. My suggested number is 7.5. It works well with car radios and if someone has a higher end AM tuner, they won't be too disappointed.
Like they said, pack your audio energy in the envelope that radios can "hear". You'll think that you have expanded your coverage area.
What kind of range are you getting with your Rangemaster? Some people claim large numbers like 10 miles during the day, while others seem lucky to get 1 mile. Before you answer that, I think I'll create a post on that topic & try to get a consensus...William C. Walker said:satech said:Most Part 15-spec antennas are not broadband antennas anyway. You can crank your bandwidth and pre-emphasis to the max, and you still won't sound as bright and crisp on the air as the commercial 10 kHz NRSC stations; you'll just be making a lot of splatter across the band.jry said:I agree with cutting the high end. My suggested number is 7.5. It works well with car radios and if someone has a higher end AM tuner, they won't be too disappointed.
Like they said, pack your audio energy in the envelope that radios can "hear". You'll think that you have expanded your coverage area.
True. Currently I own a Inovonics 222 and when I was last on the air, I ran a DBX 160a compressor/limiter into it off the board. The Rangemaster uses a CB whip and I noted that there was a tremendous amount of splatter when I set the high end to 9 khz. Fortunately I was using 1700 at the time and there were no other stations even close to that frequency that would be harmed. This time around I'll keep it to 8 khz and under.
William C. Walker said:I have done some research and determined the following three units in the sub 3 grand category to be my best options. If there is another unit out there that is equal to or exceeds these in performance and lists at 3 grand or less then by all means chime in.
Omnia One AM
Vorsis VP-8
DSPXmini AM
William C. Walker said:dspxscott. Good suggestions. My engineering friend recommended your unit ahead of the Vorsis and suggested it if I don't buy the Omnia. Given that it costs several hundred dollars less I will definitely give it a look.
Can the DSPXMini AM be adapted to stereo operation for something like the old CQUAM stereo system?
Is C-QUAM matrix processing offered? Using discrete left/right audio processing for AM Stereo will cause a loss of loudness for mono listeners during program material with heavy stereo separation, such as Oldies and Classic Country music.dspxscott said:Our AM processors have left and right inputs and outputs so will process stereo sources.