Model 8640B TM 9-4935-601-14-7&P
Table 1-2. Recommended Test Equipment (1 of 7)
Instrument Type Critical Specifications Suggested Model Use*
Adjustable Stub Length: >50 cm GR 874-D50L P
Range: to 550 MHz
20 dB Amplifier Range: 0.5 - 520 MHz HP 8447A P,A
(3 required) Gain: 20 to 25 dB
Flatness over Range: ±2 dB
Impedance: 50Ω
Noise Figure: <5 dB
20 dB Amplifier Range: 400 - 1200 MHz HP 8447B P
Gain: >20 dB
Flatness: ±2 dB
Impedance: 50Ω
Noise Figure: <5 dB to 1 GHz
40 dB Amplifier Range: 5 Hz to 100 kHz HP 465A P,A
Gain: 20 and 40 dB ±1 dB
Input Impedance: >5 kΩ
Output Impedance: 50Ω
Noise: <25 µVrms referred to input
Output: >1 Vrms into 5012
40 dB Amplifier Range: 20 Hz to 100 kHz HP 08640-60506 P
Gain: 40 ±1 dB
Input Impedance: 50Ω
Noise Figure: <3 dB when driven from
50Ω
Output Level: >100 mV in 50Ω
One-Inch Loop Antenna To ensure measurement accuracy, no HP 08640-60501 P
substitution is possible. Fabrication
depends upon machining and assem-
bling to very close tolerances.
10 dB Step Attenuator Attenuation: 0 - 120 dB in 10 dB HP 355D P,A
steps
Range: 0.45-550 MHz
Accuracy: ±1.5 dB to 90 dB
±0.3 dB to 120 dB (below 1 kHz)
Calibrated Step Attenuation: 0 - 120 dB in 10 dB HP 355D P,A
Attenuator steps Option H36
Accuracy: ± (0.02 ± 0.015 dB/10 dB
step) at 3 MHz
*P = Performance; A = Adjustment; T = Troubleshooting
1-13
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