1.2 S pecifications
T uning
Tuning range
From 5 to 862 MHz
Tuning mode
By channels or frequency
Channel plan
CCIR
(1) (2)
Frequency
62.5 kHz resolution
Indication
LCD alphanumeric display with back lighting
Level measurement
Measurement
Analogue channels
Level measurement associated with video carrier
Digital channels
Power measurement on the equivalent bandwidth for
QAM signals (7 or 8 MHz).
Measurement range
Analogue channels
From 25 to 120 dBµ V (-35 dBmV to 60 dBmV)
(3)
Digital channels
From 34 to 129 dBµ V (-26 dBmV to 69 dBmV)
Readout
Digital in dBµ V (or dBmV
(1) (2)
). 1 dB resolution
IF bandwidth
230 kHz ± 50 kHz
Input impedance
75
Ω
Audible indicator
Tone which varies with the signal level
Accuracy
Analogue channels
± 2 dB (from 0 to 40 ºC)
(4)
for negative video
modulation
(4)
.
Digital channels
± 3 dB (from 0 to 40 ºC) for 8 MHz bandwidth
channels.
V ideo/Audio
(Analogue channels)
Measurement
Ratio of video to audio carrier levels
Range
From 0 to 40 dB
Audio subcarrier frequency
Standard
5.5 MHz
(1) (2)
Variable
4 - 9 MHz
Accuracy
± 2 dB (from 0 to 40 ºC) for FM audio carrier
(5)
C arrier-to-N oise
Measurement
Analogue channels
Ratio between carrier level and the channel's noise
level.
Digital channels
Ratio between the power level of the channel and the
noise level outside it or between adjacent channels.
Measurement range
Analogue channels
40 - 50 dB (input level > 60 dBµ V)
(6)
Digital channels
15 - 40 dB (input level 80 dBµ V)
Accuracy
± 3 dB (45 - 862 MHz), ± 4 dB (5 - 45 MHz)
