Make :
Atten (Model : AT5011) Frequency range : 0.15 - 1050 MHz Resolution of frequency display : 100 KHz (4.5
digit) IF Bandwidth (-3dB) : 400 KHz and 20 KHz Video - Filter (ON) : 4 KHz Sweep rate : 43Hz Amplitude range : -100 dBm to +13 dBm Screen display range : 80 dB (10 db/div) Sensitivity : Better than-90 dBm Log scale fidelity : ±2 dB (without attn.) 500 MHz input attenuator : 0 to 40 dB (4X10 dB steps) Max.input level :+10 dBm, ±25V DC(odB attn.) +20
dBm (40 dB attn.) Tracking generator Output frequency : 0.15 MHz to 1050 MHz Output attenuator : 0 to 40 dB (4X10 dB steps) Output impedance : 50 (BNC) Output level range : -50 dBm to + 1dBm (in 10 dB
steps and var)