VEMCO – VR100 Receiver Operating Manual – Page 31
4.2 MONITOR
The Monitor feature displays real-time information, allowing active tags to be monitored or tracked. A
sample of how the screen appears in Monitor mode is shown below with labels identifying the information
shown on the screen. Explanations of the information are given in the section 4.2.1.
4.2.1 Monitor Screen Explanations
The explanations given below correspond with the diagram of the Monitor screen above.
A)
Coded ping train identification:
This indicates which part of a coded ping train is being received. When the first interval, or sync of a
coded ping train is identified, which requires two pings, an “S” is displayed in the centre of the
Monitor’s top line. With each additional ping, a number is added to the S to indicate how many pings
were received in addition to the sync. When the ping train is complete, the information in the second
and third lines (item I and H in the diagram above) and the time elapsed since the last detection (item J
in the diagram above) are displayed.
B)
Time of last detection:
The time, in hours, minutes, and seconds, of the last detection.
C)
Signal strength:
The relative strength of the received signal, between 0 and 105 dB. The value is visually represented
on the bar graph to the right of the numeric value. The signal strength is cleared if a signal hasn’t been
received for more than 10 seconds.
IMPORTANT: The signal strength reading is a relative measure of the voltage level present at the
receiver input (0dB = minimum measureable voltage, 105dB = full scale voltage). It is strictly a
relative measure of signal strength and cannot be used to measure the output power of a transmitter in
terms of dB re 1uPa @ 1m.
LT: 47 S3 07:23:11
A69-9002 50dB
▊▊▊
# 13643 0.3546 m/s
2
Norm CH1 M12 Mute
J) Last detection elapsed
time, in seconds.
I) Transmitter code
space (coded tags)
or frequency
(continuous tags).
H) Tag ID number
and/or sensor
data
G) Detection
Parameter: Near,
Norm, or Far.
B) Time of last detection
C) Signal
strength with
bar graph
F) Channel
number
E) Gain level. M indicates
manual gain, A indicates
automatic gain (AGC).
D) Mute audio
speakers
–
toggle on and off.
A) Coded ping train
identification.
