[BC] Doing remotes in 2007

[Mark Humphrey]

On 4/5/07, Mike McCarthy <Towers at mre.com> wrote:
> As others have mentioned, the use of DBX was a HUGE step up for the Marti
> system.  At one station we used it, it added 10 miles to the usable
> distance of the remotes.  We found with only 1-2 dB of Marti compression
> (just tickling the limiter), the audio sounded quite impressive at
> distances which would otherwise be marred by constant hiss or other
> artifacts.

Yes, noise reduction makes a major improvement.  I liked the "Dolby S"
units that were once manufactured by Radio Systems for use with their
cart machines.  Many of you may recall these boxes, they had the
trademark "RS-squared".  Dolby S is the cut-down "consumer" version of
SR, but really outperforms Dolby B and C.

I made a little modification to our Marti transmitter: by flipping a
switch, the internal compressor would be bypassed and the line input
level fixed at +4 dBm, but the peak clipper would remain in line.  I
used a Symetrix 528 ahead of the Dolby S unit and set its output so
the modulation stayed just below clipping threshold.   With this
system, we made some 30 mile shots that sounded just as good as 1 mile
shots.  Analog Bliss!

Mark