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(8) Noise monitoring (NOIS)
This command is to check the noise level of the specified antenna.
Command
Response
* (S) Space Character
** To convert the response data to dBm, put them into the following formula;
20 log
(response value) - 135. (The derived value should be used only as a guide.)
10
Example 1) Noise level check for the antenna port 1:
[Tx] NOIS 0 1<LF>
[Rx] NOIS0000 0000032A 00000345 000003B9 000003E0 ... 00000339<LF>
NOIS(S)Mode(S)Antenna<LF>
Mode: noise level measurement mode (0: fixed)
Antenna: the port number of antenna (1-4) that is to check the noise level.
NOIS[RC](S)[ch1 and ch2](S)[ch3 and ch4](S)･･･
[RC]: Response Code
[ch1 and ch2] to [ch49 and ch50]:
*The response data has a noise level every 2channels
(1MHz band,1ch and 2ch, 3ch and 4ch,...,49ch and 50ch).
*1ch means 902.75MHz, 2ch means 903.25MHz, 3ch means 903.75MHz, ...,
50ch means 927.25MHz
･･･(S)[ch49 and ch50]<LF>
Noise level of each communication channel.
94 of 135
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