One does wonder about the bands between 10m and 2m.....
I just found a newer document, with a corrected version of
Recommendation R.1.
http://www.iaru-r1.org/VHF_Handbook_V5_11.pdf
IARU Region VHF Managers Handbook
Version 5.11, 07. 08. 2006
Page 156
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IARU Region 1 Technical Recommendation R.1
BRIGHTON 1981, TORREMOLINOS 1990
STANDARDISATION OF S-METER READINGS
1. One S-unit corresponds to a signal level difference of 6 dB,
2. On the bands below 30 MHz a meter deviation of S-9 corresponds to an
available power of -73 dBm from a continuous wave signal generator
connected to the receiver input terminals,
3. On the bands above 30 MHz this available power shall be -93 dBm,
4. The metering system shall be based on quasi-peak detection with an
attack time of 10 msec ∀ 2 msec and a decay time constant of at least
500 msec.
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