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Dieter Spaar spaar at mirider.augusta.deHello Holger,
On Sat, 14 Nov 2009 19:45:43 +0100, "Holger Freyther" <zecke at selfish.org> wrote:
>
> Good question. I think Dieter knows this best. We have two options that
> influence the transmit power. One is the power a mobile station should use to
> communicate with us ("ms max power") and then something I don't know
> ("max_power_red") but we do have links to the spec in the vty_interface.c
"max_power_red" is the power used by the BTS, it reduces the maximum
power by a certain amount. Those are the results from a measurement
I already posted a while ago to the list:
nanoBTS 1800, ARCN 840, no voice/data traffic:
NM_ATT_RF_MAXPOWR_R RF output
0 20 dBm
1 18 dBm
2 16 dBm
4 12 dBm
8 4.4 dBm
9 2.0 dBm
10 0.4 dBm
11 -1.6 dBm
12 -3.6 dBm
Please be aware that the value "max_power_red" from the config file
is divided by two to get NM_ATT_RF_MAXPOWR_R ("max_power_red" is the
actual reduction in dB).
Best regards,
Dieter
--
Dieter Spaar, Germany spaar at mirider.augusta.de