PLJ-8LED Frequency Counter User Operating Manual 3
TECHNICAL SPECIFICATIONS
1. GATE TIME
0.01 sec
0.10 sec
1.0 sec
2. CHANNEL MEASUREMENT PERFORMANCE (CHANNEL LEVEL HIGH IMPEDANCE)
Low channel
Measuring range: 0.1 MHz - 60 MHz
Accuracy: ± 100Hz (0.01 sec gate time)
± 10Hz (0.1 sec gate time)
± 1Hz (1.0 sec gate time)
Low channel sensitivity:
0.1 MHz - 10 MHz: Better than 60mVpp
10 MHz - 60 MHz: Better than 60mVpp
60 MHz - 75 MHz: Not specified
High channel (Divide by 64)
Measuring range: 20 MHz - 2.4 GHz
Accuracy: ± 6400Hz (0.01 sec gate time)
± 640Hz (0.1 sec gate time)
± 64Hz (1.0 sec gate time)
High channel sensitivity:
20 MHz - 30 MHz: Better than 100mVpp
30 MHz - 60 MHz: Better than 50mVpp
60 MHz - 2.4GHz: Not specified
Auto Channel
Depending on the frequency of the input signal, the counter will automatically select the
high or low channel (Change occurs at 60 MHz). If the input signal is greater than 60 MHz but
a weak signal level prevents automatic high channel selection, it is possible to manually
select the high frequency channel.
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