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Old November 4th 05, 05:53 PM
Scott Dorsey
 
Posts: n/a
Default Old Xmtrs, "Ancient Modulation" and Amps

Randy or Sherry Guttery wrote:
Chuck Harris wrote:

If you are going to couch the question that way, the answer is
none.


This was in response to the previous discussion of the fact there is no
standards for S unit meters (i.e. there are reports of S Units being
anywhere from 1-6db/S unit - with 6db having been a proposed (but
failed) standard - and 5db/S unit seeming to be common in modern (SSB)
rigs.


This is bad, but I agree.

Someone mentioned that military gear using "S meters" were calibrated to
6dB/S unit. I'm not familiar (in spite of being married to a boatanchor
collector with a fair number of pieces of gear) with any "native" mil
gear with S meters - which you pretty much confirm above.


That was me.

Since that individual noted mil gear with calibrated S meters - I was
exploring that question. As I noted - it wouldn't surprise me to learn
that some modern (post 1980) mil gear has S meters...


For a while (post 1980) they appeared on some of the gear that was intended
for use by relatively untrained operators, but for the most part it wasn't
widespread. Mostly because gear that was intended for skilled users (and
I put the R-390 in that category) may as well use the more accurate dB
metering, and gear that was intended for unskilled users pretty much didn't
have metering at all (like most field radios).

Hence the "couched" question.


There is a 6 dB mil standard for the things, and I'll dig it up because
I have it somewhere in my office. The fact that it doesn't get used much
if at all is quite true, though.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."