S-meeter
(Ümber suunatud leheküljelt S-meter)
S-meter e. Signal Strenght Meter e. Signaalitugevuse meeter
S-meeter on indikaator mis näitab signaalitugevust, esineb neid nii sisseehitatult jaama kui ka eraldi lisatvalt ja kasutatakse seda põhiliselt, amatöörraadio jaamades kuid on olemas ka teistes jaamades, näiteks vabasageduslikes CB jaamades.
Näited
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 |