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MicroMet Manual Pg. 7

Operation

MicroMet Observations.

The top MicroMet printed circuit board has five Light Emitting Diodes (LED) That can tell

you a lot about how the MicroMet is communicating. On power up, or cold start,

MicroMet enables the lights. MicroMet will automatically turn the lights off at midnight,

or they may be turned on or off with the lights command. A summary of the lights:

! SP - Signal Presence. This light indicates that the receiver is acquiring a signal.

This signal could be the Master Station or it could be local noise. Unless you are

within 100 miles of the Master Station, this light should NOT be on all the time.

Remember that meteor events are short in duration.

! SYNC – Sync Detected. Embedded in the Master Station’s probe is a sync

character which MicroMet uses to verify that the probe is valid. When MicroMet

detects this character in proper sequence, it has acquired sync with the Master

Station. When sync is acquired MicroMet momentarily turns on the SYNC light.

! TX – Transmitter On. MicroMet is attempting to send a message in response to a

valid Master Station probe.

! VSWR – The radio transmitter has detected a faulty antenna or coaxial cable. No

communication is possible while condition persists.

! LOPWR - The radio transmitter’s power output is low. This may be an indication of

a faulty radio transmitter or a weak battery. This light often accompanies the

HIVSWR light, as the transmitter shuts down in response to the HIVSWR.

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Campbell PC208W Bedienungsanleitung Seite 10