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Single Sideband Suppressed Carrier (SSBSC) Video Demonstration

Kmagrill said:
I believe this method is also going to be incompatible with analog decoders using the older non-PLL methods, like diode-ring demodulators and any other decoder made before PLLs became the standard in the mid to late 1970s. There are still quite a few older tuners out there. I recently fixed a friend's 1973 Pioneer receiver which he bought upon graduating law school. He still uses it nearly every day and refuses all attempts to upgrade to something newer because he likes the way this one sounds. On the other hand, a few million older receivers is a drop in the bucket compared to the hundreds of millions of active PLL decoders in use. Also, many people won't even notice if the audio isn't stereo, as long as the LED is lit.
Click to expand...

I too thought this was going to be an issue. We have since tested numerous older receivers, pre PPL methods, and all of them work just fine when SSB is transmit.

-Frank Foti
 
Has anyone found the correct FCC form to file for Experimental Authority for a Broadcast Station? Waiting to turn the SSBSC on & see what it does.
 
OKCRadioGuy said:
Frank, have you tested it with the BW Broadcast tuner and the Sony HD tuner yet? Hopefully they play nice with it.
Click to expand...

I think Corny has the SONY tuner, which we're about to test. We don't have the BW Broadcast tuner.

-Frank Foti
 
Can I load my Omnia 1 for AM and get the same result?

I have an Omnia 5 that arrived set for Am and wonder if the resulting audio is what is being used here.
 
ChiefEngineer said:
Can I load my Omnia 1 for AM and get the same result?

I have an Omnia 5 that arrived set for Am and wonder if the resulting audio is what is being used here.
Click to expand...

Not sure I understand the question. Our AM processors are designed for conventional AM broadcasting.

-Frank Foti
 
There are amny people with questions about the way this works. Will other Omnia products offer this as well as an option?
 
ChiefEngineer said:
There are amny people with questions about the way this works. Will other Omnia products offer this as well as an option?
Click to expand...

Omnia.9 offers it now, and we'll offer it in an external stereo generator. Not sure about Omnia.One just yet, need to check the DSP workload.

-Frank Foti
 
Frank F,

Have you seen any studies or do you have any thoughts on the subject of how the use of SSBSC stereo effects stereo reception in areas of overlap for on channel boosters? Would the self-inflected multipath-like effects be reduced?

- Bill Putney - KPTZ Port Townsend, WA
 
While we're firing questions at Frank and/or Leif, has research been done on SSB where an adjacent channel station fires up IBOC? The IBOC in question was there and trashed the station in it's pre SSB days and the IBOC was later shut off (that was heavenly--with SSB and no IBOC interference it acted more like the old days when FM stayed pretty clear until it fell off the cliff). When the IBOC came back, the SSB was on and at least on that 1 trip into the interference zone, it did not appear that the damage inflicted by the IBOC station was as bad as before.
 
I guess Frank has been talking to receiver manufacturers to see what interest there might be in a SSB decoder mode. Hypothetically this mode would narrow the filters ahead of the L-R demod. It seems likely that an improvement in adjacent channel IBOC induced noise would be another benefit. This wouldn't help the legacy receivers. But... most people keep their cars 5-10 years and in that time we could see advanced decoders take over a majority of the car radios.

I see a lot of concern about those early non-PLL receivers. I wonder how many of those there really are out there. The time between the wide consumer acceptance of FM Stereo and the end of non-PLL receiver production was very brief.

I'm old enough to remember the time right after the stereo wars where resolved by the FCC. Most of the stereo "decoders" were separate boxes that plugged into a special composite jack on the back of Hi-Fi receivers (the jacks were put there by manufacturers that didn't know which side the FCC was going to come down on). Most cars had AM radios and if you worked at an FM station like I did then, you had a Motorola FM receiver that went in the antenna line of your car radio to re-modulate the FM station onto the AM band. Certainly nothing stereo in cars then. I use to amaze my friends by driving through a tunnel and not have the radio fade out. :)

Bill
 
Navion said:
Frank F,

Have you seen any studies or do you have any thoughts on the subject of how the use of SSBSC stereo effects stereo reception in areas of overlap for on channel boosters? Would the self-inflected multipath-like effects be reduced?

- Bill Putney - KPTZ Port Townsend, WA
Click to expand...

Bill,

To date, I have not seen any studies regarding your question. It's possible we'll get some data about this as our work is about to begin with the Task Group of the AFAB subcommittee of the NRSC.

-Frank Foti
 
Optimod-FM 5500 has just received a software upgrade (V 1.2.0) that enables CSSB operation in both the 5500's audio processor+stereo generator and stand-alone stereo generator modes. It's a free download at ftp.orban.com.

Bob Orban
 
rorban said:
Optimod-FM 5500 has just received a software upgrade (V 1.2.0) that enables CSSB operation in both the 5500's audio processor+stereo generator and stand-alone stereo generator modes. It's a free download at ftp.orban.com.

Bob Orban
Click to expand...

Bob,

Any chance the 8300 gets the SSB mode?
 
bob,

what about the 2300? Does this unit gets the upgrade as well?


Br

Evert
 
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