[Elecraft] S- Meter HF ver. VHF calibration

[K7WIA]

Would it be possible to set up the K3 so that we would have the availability
to change the S meter calibration on 6 meters and the transverter bands to
conform to the attached standards,     it would be nice to have this user
selectable in the menu.  also it would have to be apply to the P3


Today two references values exist: for frequencies below 30 MHz, S9 is
defined as a voltage of 50 uV over 50 Ohms at the receiver antenna
connector; for frequencies above 30 MHz, S9 is defined as a voltage of 5 uV
over 50 Ohms at the receiver antenna connector. This refers to an
unmodulated carrier signal (N0N) that uses almost no bandwidth; in case of
real signals using a given bandwidth, this definition may not be enough
since a smaller receiver bandwidth allows a weaker minimum detectable
signal, but S-points are still a good tool for comparing received signals.
S-points for frequencies below 30 MHz:
Signal
strength Relative
intensity Received
voltage Received power
(Zc = 50 Ohm) 
S1 -48 dB 0.20 uV -14 dBuV 790 aW -121 dBm 
S2 -42 dB 0.40 uV -8 dBuV 3.2 fW -115 dBm 
S3 -36 dB 0.79 uV -2 dBuV 13 fW -109 dBm 
S4 -30 dB 1.6 uV 4 dBuV 50 fW -103 dBm 
S5 -24 dB 3.2 uV 10 dBuV 200 fW -97 dBm 
S6 -18 dB 6.3 uV 16 dBuV 790 fW -91 dBm 
S7 -12 dB 13 uV 22 dBuV 3.2 pW -85 dBm 
S8 -6 dB 25 uV 28 dBuV 13 pW -79 dBm 
S9 0 dB 50 uV 34 dBuV 50 pW -73 dBm 
S9+10 10 dB 160 uV 44 dBuV 500 pW -63 dBm 
S9+20 20 dB 500 uV 54 dBuV 5.0 nW -53 dBm 
S9+30 30 dB 1.6 mV 64 dBuV 50 nW -43 dBm 
S9+40 40 dB 5.0 mV 74 dBuV 500 nW -33 dBm 
S9+50 50 dB 16 mV 84 dBuV 5.0 uW -23 dBm 
S9+60 60 dB 50 mV 94 dBuV 50 uW -13 dBm 

 
S-points for frequencies above 30 MHz:
Signal
strength Relative
intensity Received
voltage Received power
(Zc = 50 Ohm) 
S1 -48 dB 20 nV -34 dBuV 7.9 aW -141 dBm 
S2 -42 dB 40 nV -28 dBuV 32 aW -135 dBm 
S3 -36 dB 79 nV -22 dBuV 130 aW -129 dBm 
S4 -30 dB 160 nV -16 dBuV 500 aW -123 dBm 
S5 -24 dB 320 nV -10 dBuV 2.0 fW -117 dBm 
S6 -18 dB 630 nV -4 dBuV 7.9 fW -111 dBm 
S7 -12 dB 1.3 uV 2 dBuV 32 fW -105 dBm 
S8 -6 dB 2.5 uV 8 dBuV 130 fW -99 dBm 
S9 0 dB 5.0 uV 14 dBuV 500 fW -93 dBm 
S9+10 10 dB 16 uV 24 dBuV 5.0 pW -83 dBm 
S9+20 20 dB 50 uV 34 dBuV 50 pW -73 dBm 
S9+30 30 dB 160 uV 44 dBuV 500 pW -63 dBm 
S9+40 40 dB 500 uV 54 dBuV 5.0 nW -53 dBm 
S9+50 50 dB 1.6 mV 64 dBuV 50 nW -43 dBm 
S9+60 60 dB 5.0 mV 74 dBuV 500 nW -33 dBm 


Ed KD7PY  ex K7WIA



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