Specifications
Reference Lines
Equals the sum of reference level accuracy plus the scale fidelity
Accuracy
between the reference level and the reference line level.
Dynamic Range
Spurious Responses
Note
Note
Note
For total signal power of
c-40
dBm at the input mixer of the
analyzer, all image and out-of-band mixing responses, harmonic and
intermodulation distortion products are
>75
dB
below the total signal
power for input signals 10 MHz to 1500 MHz,
>70
dB
below the total
signal power with input signals
~10
MHz.
Input mixer level is defined as the input attenuation subtracted from
the total signal power at the input connector.
Second Harmonic Distortion *
I
Frequency Range
I
Distortion
I
210
MHz
<-70
dBc
<lO
MHz
<-60
dBc
I
*For a signal -30 dBm at the mixer.
I
For typical second and third order distortion characteristics, see
Figure 4-4 in Chapter 4, “Performance Characteristics.”
Dynamic range due to Third Order Intermodulation Distortion and
noise level can be calculated from
2/3
[TOI
-
displayed average noise
level]. For example, at 900 MHz the analyzer’s specified dynamic
range when using the 10 Hz resolution BW is:
2/3
[ + 10 dBm
-
(-135
dBm)]
=
2/3(145)
= 96.7
dB.
Two-tone intermodulation distortion products can be calculated from
2(TOI
-
signal level). For example, for two tones at -30 dBm, the
intermodulation products for a
+5
dBm TO1 will be:
2[
+
5 dBm
-
(-30)]
= 70
dB
down.
Third Order Intermodulation Distortion *
Center Signal
Distortion
Frequency
Separation
Products
>lOO
kHz
<lOO
kHz
<-70
dBc
>lO
MHz >lOO
kHz
<-80
dBc
*For two signals, each -30 dBm at the mixer.
TO1
>+5
dBm
>+lO
dBm
Residual Responses
Residual responses are signals generated by the analyzer independent
of input signals.
Specifications 3-7