![Nestbox B7 User Manual Download Page 11](http://html.mh-extra.com/html/nestbox/b7/b7_user-manual_1669453011.webp)
Page 11
6.
Leave the system in this state for at least 30 seconds.
7.
It will now have saved this setting until you set it again.
8.
You can now switch off or on as normal.
The point at which the lighting system switches from state 1 to 2 has also been
factory set to correspond to the correct light level for the camera. If your box is
in a particularly bright situation, you can change this setting as follows:
1.
Choose a time when the light level outside is the level at which you want
the system to switch.
2.
Start with the system in the “OFF” state.
3.
Turn it to “STD”, and then immediately back to “OFF”.
4.
The system should now be in “set” mode and the white light inside the box
should flash on and off 3 times to show it is waiting for you to set the
switching point. If you don’t get 3 flashes, try from step 2 again.
5.
Wait until after the 3 flashes, check that the light level is the level at which
you want it to switch, and then switch back to “STD”.
6.
Leave the system in this state for at least 30 seconds.
7.
It will now have saved this setting until you set it again.
8.
You can now switch off or on as normal.
If you accidentally switch the system into “Set” mode, and at any point you get
either 3 or 6 flashes, disconnect the nest box from the battery box by pulling the
plug out of the socket in the Battery Box. This will avoid resetting the switching
points.
5.3
Audio Volume
The audio system is fitted with an Automatic Gain Control (AGC) which in-
creases the amplification when the microphone is picking up little sound, and
decreases it when it picks up more noise. In quiet situations, this results in high
gain, and can result in what sounds like a loud hum.
We suggest you set the volume on your TV or PC to a level where in quiet condi-
tions, any background noise or hum is barely audible, and is not intrusive. When
the birds take up residence, and start making a noise, the AGC will ensure that
you hear their sounds well above the level of the background noise.
5.4
Transmission Range
The Transmitter and Receiver have a nominal range of 100 metres.
The actual distance achieved will vary depending on atmospheric conditions, the
position and type of nearby obstacles (such as walls, trees, or metal objects) and
the state of the batteries.
Page 9