Atec AFJ Instruments_R3000-3030 - Manual (Page 4)

A Pulse Limiter/Attenuator is required to protect the RF input stages of sensitive equipment
from unpredictable spikes generated during conducted emission testing of a DUT.
We recommend the utilization of our Pulse Limiter/Attenuator with all our EMI receivers, in
particular whenever DUT are tested for the first time.
These Spikes with high spectral density/Pulse energy can seriously damage all input stages such
as, attenuators, pre-amplifier, preselector or mixer of our or other receivers as well as other RF
sensitive equipment such as Spectrum Analysers.
PAT20M 20dB Attenuator is designed to stand Pulse Voltages up to 1Ws.
Frequency Range 0Hz
÷
30MHz
Low pass filter up to 100MHz
Max continuous input power 1W
Max pulse input energy 1Ws (500
µ
s)
Input / Output VSWR 1.05 / 1.15
Characteristic Impedance 50
Ω
Insertion loss 20dB
±
0.3dB
In / Out RF connectors BNC (f / m)
Dimensions 96x28x23mm
Weight 70g
Nominal Temperature range –10°C
÷
+45°C
Storage temperature range –25°C ÷
+70°C
R3000 Receiver