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19 lines
388 B
Bash
19 lines
388 B
Bash
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#!/bin/bash
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rssi_raw=$(./sdrctl dev sdr0 get reg xpu 57)
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echo $rssi_raw
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rssi_raw=${rssi_raw: -8}
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echo $rssi_raw
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rssi_raw_dec=$(( 16#$rssi_raw ))
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echo $rssi_raw_dec
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#rssi_half_db=$(expr (16#$rss_raw) \& 2047)
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#rssi_half_db=$(($rssi_raw_dec & 2047))
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#rssi_half_db=$(($rssi_raw_dec & 16#7ff))
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#the low 11 bits are rssi_half_db
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rssi_half_db=$((16#$rssi_raw & 16#7ff))
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echo $rssi_half_db
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