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2d52dde12f
a list of all spatial streams Signed-off-by: Chuck SmileyRekiere <chuck.smileyrekiere@candelatech.com>
126 lines
3.1 KiB
Python
126 lines
3.1 KiB
Python
#!/usr/bin/python3
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"""
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NAME: lf_tx_power_dbm_tool.py
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PURPOSE:
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calcuate the combined spatial stream power.
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EXAMPLE:
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LICENSE:
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Free to distribute and modify. LANforge systems must be licensed.
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Copyright 2022 Candela Technologies Inc
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INCLUDE_IN_README
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NOTE: To convert the per spatial stream dBm to combined dBm
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convert dBm to watts (power) for each spatial stream, add the power values then convert back to dBm
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https://www.rapidtables.com/convert/power/dBm_to_Watt.html
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https://www.rapidtables.com/convert/power/Watt_to_dBm.html
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Thank-you to:
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https://www.thepacketologist.com/2021/10/power-conversion-in-python/
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"""
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import argparse
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import math
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import importlib
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# TODO set up with logger
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lf_logger_config = importlib.import_module("py-scripts.lf_logger_config")
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def convert_input():
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value = input("Whate is the numberical value of teh unit of power?:").lower()
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unit = ""
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while unit == "":
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unit = input("What unit would you like to convert this too? (dBm/mW): ").lower()
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if unit == "dbm" or unit =="mw":
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unit = unit
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else:
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unit = ""
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return value, unit
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def convert_dbm_to_mw(value):
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# P(mW) = 1W * 10(P(dBm) / 10)
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dbm = int(value)
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mw = 1 * 10 ** (dbm/10)
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print(f"{dbm} dBm = {round(mw, 10)} mW")
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return mw
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def convert_mw_to_dbm(value):
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# P(dBm) = 10 * log10( P(mW) / 1mW)
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mw = value
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dbm = 10 * math.log10(mw/1)
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print(f"{mw} mW = {round(dbm, 2)} dBm")
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return dbm
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def convert_per_ss_dbm_to_combined(ss_list):
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total_mw = 0.0
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for value in ss_list:
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value = int(value)
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print("dbm value {value}".format(value=value))
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mw = convert_dbm_to_mw(value)
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print("mw: {mw}".format(mw=mw))
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total_mw += mw
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print("total_mw: {total_mw}".format(total_mw=total_mw))
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combined_dbm = convert_mw_to_dbm(total_mw)
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print("combined_dbm = {combined_dbm}".format(combined_dbm=combined_dbm))
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return combined_dbm
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def main():
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parser = argparse.ArgumentParser(
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description="Convert power values from dBm to mW or mW to dBm"
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)
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parser.add_argument(
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"--dbm",
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"--dbm2mw",
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dest="dbm2mw",
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help="Converts value from dBm to mW",
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metavar="10",
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type=int,
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)
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parser.add_argument(
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"--ss_dbm",
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"--ss_list_dbm",
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dest="ss_list_dbm",
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help="pass in a spatial stream list --ss_dbm '-55 -53 -60 -22",
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type=str,
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)
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parser.add_argument(
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"--mw",
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"--mw2dbm",
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dest="mw2dbm",
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help="Converts value from mW to dBm.",
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metavar="50",
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type=float,
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)
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args = parser.parse_args()
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if args.dbm2mw is not None or args.mw2dbm is not None or args.ss_list_dbm:
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if args.dbm2mw:
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convert_dbm_to_mw(args.dbm2mw)
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elif args.mw2dbm:
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convert_mw_to_dbm(args.mw2dbm)
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else:
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convert_per_ss_dbm_to_combined(args.ss_list_dbm.split())
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else:
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value, unit = convert_input()
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if unit == "mw":
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convert_dbm_to_mw(value)
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elif unit == "dbm":
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convert_mw_to_dbm(value)
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if __name__ == "__main__":
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main()
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