Lit Number: 11-06-21-068
Page (11)
These meters normally measure the inductance at 1 kHz (not 134.2 kHz) but providing
that the meter has a resolution of 0.1 µH, they can be used
4.2 Antenna
Q
The Q value of an antenna is a measure of the efficiency. For the same input power,
high Q antennas have a much greater RF output than lower Q antennas.
Figure 12. High Q Vs. Low Q
A high Q antenna also serves as a filter ignoring signals outside its bandwidth but high
Q antennas are more effected by the presence of metal than low Q ones.
Figure 13. LF System Spectrum
CENTRE 134 400.0 H
SPAN 200 000.0
RBW 1 KHZ
VBW 3 KHZ
ST .4 SEC
10 DB/DIV RANGE .0 DBM -20.1 DBM
REF .0 DBM MARKER 134 400.0 H
B = 12 kHz
60
d
B
High "Q"
Low "Q"
Frequency
ƒ
0
Summary of Contents for 2000 LF Series
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