Fluke 9640A Series, Инструкция по эксплуатации

Страница: 34 / 324

9640A
Instruction Manual
1-14
External Leveling Input
Rear panel Modulation, Leveling and Frequency Pull BNC connector, 10 k
Ω
nominal input impedance.
For external power meter leveling User adjustable full scale voltage, 1 V to 5 V, positive polarity.
Maximum Input ±5 V
External Frequency Control Input
Rear panel Modulation, Leveling and Frequency Pull BNC connector, 10 k
Ω
nominal input impedance.
Frequency Pull Range ±5 ppm
Frequency Pull Sensitivity User adjustable between 0.0001 ppm/V to 1.0000 ppm/V, positive or negative
polarity.
Maximum Input ±5 V
Modulation Specifications
Amplitude Modulation
50
Ω
output 75
Ω
output
Waveform Sinusoidal, Triangle, or External signal
Carrier Frequency 50 kHz to 4 GHz
Carrier Level
<1.4 GHz:
≤
+14 dBm
>1.4 GHz:
≤
+8 dBm
<1.4 GHz:
≤
+8 dBm
>1.4 GHz:
≤
+2 dBm
Carrier Level Accuracy
[1]
As Leveled Sine + 0.5 dB, typical
Carrier Harmonics ≤
50 dBc typical
Rate ≤
125.75 MHz, 1 Hz to 220 kHz,
≤
1 % of Carrier Frequency.
>127.75 MHz, 1 Hz to 100 kHz
Rate Resolution 0.1 Hz, 5 digits
Rate Accuracy ≥
1 kHz: ±1 digit, <1 kHz: ±10 mHz
Depth 0.1 % to 99 %
Depth Resolution 0.1 %
Carrier Frequency and Level
Range for Specified Depth
Accuracy and Distortion ≤
1 GHz, -56 dBm to +14 dBm
≤
1 GHz, -62 dBm to +8 dBm
AM Sine Depth Accuracy
[2]
3 % of s 0.1 %, for >5 % depth.
Typically 0.75 % of s 0.1 %, for 10 % to 90 % depth,
≤
75 MHz carrier frequency.
AM Sine Distortion
[2] [3]
≤
-40 dBc,10 % to 80 % depth, for
≤
20 kHz rate, or for > 20 kHz rate at
≤
75 MHz carrier
frequency.
Typically
≤
-50 dBc, 10 % to 80 % depth,
≤
75 MHz carrier frequency.
[1] Signal content at carrier frequency only, excluding sidebands.
[2] Applies to demodulated signal content at rate fundamental frequency. Specifications are typical for modulation rates <20Hz.
[3] Includes harmonic distortion and noise up to 5 times rate frequency.