Crazy idea?
 

Had an off-the-wall idea last night to use dbx noise reduction with a
CB. It would require dbx units on both ends. The audio bandwidth is
small so Type I wouldn't work, but maybe Type II? Anybody ever try it?






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On Mon, 14 Jun 2004 05:03:42 -0700, Frank Gilliland
wrote:

Had an off-the-wall idea last night to use dbx noise reduction with a
CB. It would require dbx units on both ends. The audio bandwidth is
small so Type I wouldn't work, but maybe Type II? Anybody ever try it?



Doesn't most DBX increase the higher frequency components?

In , Lancer
wrote:

On Mon, 14 Jun 2004 05:03:42 -0700, Frank Gilliland
wrote:

Had an off-the-wall idea last night to use dbx noise reduction with a
CB. It would require dbx units on both ends. The audio bandwidth is
small so Type I wouldn't work, but maybe Type II? Anybody ever try it?



Doesn't most DBX increase the higher frequency components?


That's how Dolby works. DBX is 2:1:2 compression/decompression.






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On Mon, 14 Jun 2004 05:03:42 -0700, Frank Gilliland
wrote:

Had an off-the-wall idea last night to use dbx noise reduction with a
CB. It would require dbx units on both ends. The audio bandwidth is
small so Type I wouldn't work, but maybe Type II? Anybody ever try it?


Congratulations! You have just reinvented ACSB..........

Dave
"Sandbagger"

Screw it go FM.


"Dave Hall" wrote in message
...
On Mon, 14 Jun 2004 05:03:42 -0700, Frank Gilliland
wrote:

Had an off-the-wall idea last night to use dbx noise reduction with a
CB. It would require dbx units on both ends. The audio bandwidth is
small so Type I wouldn't work, but maybe Type II? Anybody ever try it?


Congratulations! You have just reinvented ACSB..........

Dave
"Sandbagger"

In , Dave Hall
wrote:

On Mon, 14 Jun 2004 05:03:42 -0700, Frank Gilliland
wrote:

Had an off-the-wall idea last night to use dbx noise reduction with a
CB. It would require dbx units on both ends. The audio bandwidth is
small so Type I wouldn't work, but maybe Type II? Anybody ever try it?


Congratulations! You have just reinvented ACSB..........


......uh, what's ACSB?






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On Mon, 14 Jun 2004 16:11:11 -0700, Frank Gilliland
wrote:

In , Dave Hall
wrote:

On Mon, 14 Jun 2004 05:03:42 -0700, Frank Gilliland
wrote:

Had an off-the-wall idea last night to use dbx noise reduction with a
CB. It would require dbx units on both ends. The audio bandwidth is
small so Type I wouldn't work, but maybe Type II? Anybody ever try it?


Congratulations! You have just reinvented ACSB..........


.....uh, what's ACSB?


Amplitude Compandored Side Band. It's a narrow bandwidth single
sideband modulation technique which was first proposed when UPS was
handed a 2 Mhz chunk of the 220 Mhz ham band.

Dave
"Sandbagger"

In , Dave Hall
wrote:

On Mon, 14 Jun 2004 16:11:11 -0700, Frank Gilliland
wrote:

In , Dave Hall
wrote:

On Mon, 14 Jun 2004 05:03:42 -0700, Frank Gilliland
wrote:

Had an off-the-wall idea last night to use dbx noise reduction with a
CB. It would require dbx units on both ends. The audio bandwidth is
small so Type I wouldn't work, but maybe Type II? Anybody ever try it?


Congratulations! You have just reinvented ACSB..........


.....uh, what's ACSB?


Amplitude Compandored Side Band. It's a narrow bandwidth single
sideband modulation technique which was first proposed when UPS was
handed a 2 Mhz chunk of the 220 Mhz ham band.


Cool. Then dbx should work with CB. I'll give it a shot this summer.







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I tried a "crazy" idea years ago. Two commercial pitch transposers. Drop
frequency down and turn on a narrow filter. Voice quality is not super, but
not bad and it used half of the bandwidth. Can cut qrm quite a bit.

Best regards from Rochester, NY
Jim


"Frank Gilliland" wrote in message
...
Had an off-the-wall idea last night to use dbx noise reduction with a
CB. It would require dbx units on both ends. The audio bandwidth is
small so Type I wouldn't work, but maybe Type II? Anybody ever try it?






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