When calibrating an electromagnetic interference measurement receiver, especially when calibrating the impulse response characteristics of the receiver according to the CISPR-16 standard, a pulse signal generator must be used. IGUU 2918 is used by various EMI receiver manufacturers and measurement organizations, and is the most widely used calibration pulse source in the world.
main feature:
When calibrating an electromagnetic interference measurement receiver, especially when calibrating the impulse response characteristics of the receiver according to the CISPR-16 standard, a pulse signal generator must be used. IGUU 2918 is used by various EMI receiver manufacturers and measurement organizations, and is the most widely used calibration pulse source in the world.
IGUU 2918 consists of three signal sources: a main pulse generator, an auxiliary pulse generator and a sine wave generator. Since the calibration pulse generator itself has a sinusoidal signal generator, there is no need to connect an external signal source when calibrating the pulse response characteristics of the EMI receiver. Through the dedicated interface, test software and coaxial switch, the impulse response characteristic calibration of the electromagnetic interference receiver can be automatically completed. The control software is based on WINDOWS operating system, with friendly interface and easy operation.
The optional coaxial switch unit KU 9618 can be controlled by IGUU 2918. Connect one of the four outputs of IGUU 2918 to the EUT. There is no need to switch the coaxial connector during the test, which is convenient and time-saving.
Through the GPIB interface, the computer can fully control all the functions of IGUU 2918. If KU 9618 is selected, fully automatic testing can be realized.
1. Main generator:
Pulse frequency range:
0.1 Hz-20 Hz, 1-200 Hz, 10 Hz-2 kHz, 100 Hz -20 kHz, in steps of 0.1 Hz, 1 Hz, 10 Hz, 100 Hz
Frequency accuracy: ±2.3×10 -3 Hz
Pulse shape: almost square wave
Pulse width: Band A 270ns; Band B 6ns; Band C/D 0.3ns
Pulse polarity: positive /negative (switchable)
Pulse amplitude: (CISPR weighted QP):
Band A / B 10-70dB in steps of 1dB
Band C/D 0-60 dB in steps of 1dB
Maximum output voltage (across 50Ω load): 80V~110V
Setting of Pulse Area at 60dB attenuator:
Corresponds to the CISPR 16 standard QP detector, which is equal to 1mV rms at 50 ohms .
Frequency flatness:
Typical value: ±0 to -0.5dB at the high end frequency of band A/B
Band C: Typical value: ±0.5dB (30MHz-100MHz) (100MHz is the reference frequency for level calibration)
The level is between 200MHz and 800MHz, with the frequency increasing from +0.5dB to +1dB, and when the frequency is 800MHz-1000MHz, it decreases to ±0 to -1dB.
Level accuracy:
Band A/B: ±0.5 dB at 50 kHz, 1 MHz
Band C/D: ±0.8 dB at 100 MHz
2. Auxiliary generator:
Pulse frequency range:
Band A: 0.1 Hz-2kHz,
Band B: 0.1 Hz-50kHz,
Band C/D: 0.1 Hz-1000kHz,
0.1Hz-999.9Hz in 0.1Hz steps
0.1kHz-1000kHz, in steps of 0.1kHz
Pulse frequency accuracy: ±2.3×10 -3 Hz
Pulse width: Band A 70ns; Band B 5ns; Band C/D 1ns
Pulse amplitude: ( CISPR weighted QP):
Band A/B: 60dB fixed level
Band C/D: 40dB fixed level
Frequency flatness:
Band A/B: Same as main generator
Band C (D): Typical value ±0.75 dB, 30MHz-1000MHz
3. Dimensions and weight
Dimensions 447mm x 180mm x 460mm (W x H x D); weight: 12kg