R3132 Series Spectrum Analyzer Operation Manual
7.6 Options
7-26
OPT73 FM Demodulation
•
Internal Mixer Mode
•
External Mixer Mode (OPT16, OPT17, OPT18, or OPT19 is required)
Characteristics
Specification
Amplitude range
> -50 dBm + Input attenuator value
(-20 dB or more in reference to the reference level with a
center frequency of 1 GHz and the RBW set to 10 MHz)
FM deviation
Display range on the screen
Linearity error *
Offset error*
Demodulation frequency bandwidth
(3 dB)
2.5 MHz, 1 MHz, 500 kHz, 250 kHz, 100 kHz, 50 kHz, 25
kHz and 10 kHz
≤
(2% of the screen display range)
≤
(4% of the screen display range + K + Frequency reading
×
Frequency reference accuracy)
K: 8 kHz (Screen display range: 2.5 MHz to 250 kHz)
2 kHz (Screen display range: 100 kHz to 10 kHz)
≥
300 kHz (Nominal)
*: This value is obtained after a warm-up of at least 30 minutes is performed, and then a calibration
called FM Demod All CAL is performed.
Characteristics
Specification
FM deviation
Display range on the screen
Linearity error *
Offset error*
Demodulation frequency bandwidth
(3 dB)
500 MHz, 250 MHz, 100 MHz, 50 MHz, 25 MHz, 10 MHz,
5 MHz, 2.5 MHz, 1 MHz, 500 kHz, 250 kHz, 100 kHz, 50
kHz, 25 kHz and 10 kHz
≤
(2% of the screen display range)
≤
(4% of the screen display range + K + Frequency reading
×
Frequency reference accuracy)
K: 128 kHz (Screen display range: 500 MHz to 5 MHz)
8 kHz (Screen display range: 2.5 MHz to 250 kHz)
2 kHz (Screen display range: 100 kHz to 10 kHz)
≥
300 kHz (Nominal)
*: This value is obtained after a warm-up of at least 30 minutes is performed, and then a calibration
called FM Demod All CAL is performed.