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#1
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Randy or Sherry Guttery wrote:
Perhaps the newer ones (post 1980) have S-meters? That's an interesting point - what military receivers --besides conversion sets -- have "S meters" (i.e. actually marked in S units)? best regards... Why RT-718/FRC-93's, which are also know as KWM2A's do. -Chuck |
#2
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Chuck Harris wrote:
Randy or Sherry Guttery wrote: Perhaps the newer ones (post 1980) have S-meters? That's an interesting point - what military receivers --besides conversion sets -- have "S meters" (i.e. actually marked in S units)? best regards... Why RT-718/FRC-93's, which are also know as KWM2A's do. Don't those count as "conversions" - i.e. civilian sets "badged" with military nomenclature? I'll try asking again... what radios designed by / for the military (as opposed to rebadged civilian sets) have carrier meters marked in S Units? David - you've got a ton of mil stuff... what has meters in S units? best regards... -- randy guttery A Tender Tale - a page dedicated to those Ships and Crews so vital to the United States Silent Service: http://tendertale.com |
#3
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Randy or Sherry Guttery wrote:
Chuck Harris wrote: Why RT-718/FRC-93's, which are also know as KWM2A's do. Don't those count as "conversions" - i.e. civilian sets "badged" with military nomenclature? I'll try asking again... what radios designed by / for the military (as opposed to rebadged civilian sets) have carrier meters marked in S Units? David - you've got a ton of mil stuff... what has meters in S units? best regards... If you are going to couch the question that way, the answer is none. Military sets have db meters. There are only a handfull of general purpose receivers that would fit your requirement, and most of those that you think of as purely military were also sold to ham and civilian markets... granted, not as the primary market, though. The "S"-Meter is a ham invention. The "S1-9" part of the scale was an attempt to quantize the "S" part of the R-S-T signal reporting system. Where R is readability on a scale of 1-5, S is signal strength on a scale of 1-9, and T is tone, on a scale of 1-9. -Chuck |
#4
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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. 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. 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... Hence the "couched" question. best regards... -- randy guttery A Tender Tale - a page dedicated to those Ships and Crews so vital to the United States Silent Service: http://tendertale.com |
#5
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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." |
#6
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Scott Dorsey wrote:
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). I had a feeling there might be a few "latter day" examples of mil S-meters - but, yes I quite agree - the few BA receivers I'm familiar with that have meters (390 series, WWR-2, etc.) are dB while the vast majority of BA receivers don't have any signal strength meter at all (ARC 5, 348, 654, and so on). 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. That's what I'm interested in - I did a quick (very quick) scan through several of the manuals I have here (Navy Electronics Tech 3 & 2 parts 1 & 2; Basic Electronics; EIMB Reference Data, EIMB Communications (incomplete); EIMB TM&P)- and while just about every manner of dB is covered- I didn't spot a single mention of S-Units. I must note, however - they are from my time in the Navy - which was the 1970s- and that's why I have allowed that S-units may have come into common use in the military in sometime since 1980. best regards... -- randy guttery A Tender Tale - a page dedicated to those Ships and Crews so vital to the United States Silent Service: http://tendertale.com |
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