[BC] Mod Monitors and peak flashers...

[R A Meuser]

But peak flasher response also varies all over the map. There is no 
specific time duration, just a maximum. Many flashers are much faster 
and there are a number of mod monitors that have an adjustable 
ballistic. A station using a monitor with a slow release meter and a 
fast peak flasher will show the maximum limit with less loudness. So to 
use your analogy a mod monitor is like everyone on the freeway has 
variable calibration for their speedometers, all legal.

I do not see where FM occupied bandwidth measurements would be any more 
controversial than AM NRSC measurements are. Some spectrum analyzers can 
do them properly others can not. Mod monitors are mostly a  Western 
Hemisphere phenomena. You find them far less common elsewhere primarily 
because they are really not that useful.



Burt I. Weiner wrote:
> Meter ballistics is the reason for the "Peak Light" or flasher.  I 
> forget the exact number off the top of me head, but there is a specific 
> time duration for the peak/s before the light would flash.
> 
> Occupied bandwidth is one way to make measurements and sort of 
> accomplishes the same thing.  Can you imagine what would happen if we 
> did away with the standardized +/- 75 kHz (ok. 110 with SCA's) and went 
> strictly by occupied bandwidth?  Now we'd be arguing over which spectrum 
> analyzer and methodology to use.  It would bring new meaning to the 
> term, "Modulation Wars".  Can you also imagine what it would be like if 
> everyone on the freeway was driving one of those monster Hummers!
> 
> Burt
> 
> 
> At 11:45 PM 10/5/2007, R wrote:
> 
>> Mod monitors have their own personality and can be somewhat meaningless.
>> Even on the metered part of the measurement, differing ballistics
>> produce greatly varying results. One group I worked for specified the
>> use of only one brand monitor because it made you 'work harder' to fully
>> modulate the transmitter.