MFJ-886B Frequency Counter
5
Functional Description of the Frequency Counter
No.
Function
Icon
Description
1
Input terminal of
antenna plug
Input impedance of the
antenna is 50
Ω
.
2
LCD display
screen
It shows the measured
frequency.
3
Working
indicator light
Sampling
rate
indication
4 Power
switch
Set to the “OFF”
position to switch off
the frequency counter.
Set to the “ON”
position to switch on
the frequency counter.
5
Jack of DC
charge power
supply
Input jack of charge
power supply
6
Position of the
RANGE switch.
1. Set to the “50MHz”
position for the
0.3MHz to 50MHz
range.
2. Set to the “2.8 GHz”
position for the
50MHz to 2.8 GHz
range.
7 HOLD
key
The function of holding
the reading
