Option 001: Oven Time Base
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HP / Agilent 5351B Microwave Frequency Counter, 10 Hz - 26.5 GHz
The Agilent 5351B provides fast and precise measurements from 10 Hz to 26.5 GHz and features microwave components that are integrated on a single hybrid gallium arsenide (GaAs) circuit for added speed and reliability. The 5351B distinguished by wide frequency coverage, exceptional sensitivity, fast tracking, high measurement throughput, and wide FM tolerance.
Built-in microprocessors provide math functions, including measurement scaling and offset. Automatic amplitude discrimination measures the frequency of the highest-amplitude signal in a multi-signal environment. A full set of diagnostic routines provides general information and troubleshooting.
The 5351B integrates easily into test systems. English-like commands simplify integration with other components, and the easy-to-read liquid crystal displays can serve as message centers for the system.
HP / Agilent 5351B Specifications:
| Input 1 |
| Frequency Range |
500 MHz - 26.5 GHz |
| Sensitivity |
500 MHz - 12.4 GHz: |
-32 dBm |
| 12.4 GHz - 20 GHz: |
-27 dBm |
| 20 GHz - 26.5 GHz: |
-16 dBm |
| Maximum Input |
+7 dBm |
| Connector |
APC -3.5 (male) with collar |
| Resolution |
Selectable, 1 Hz - 1 MHz |
| Input 2 |
| Frequency Range |
10 Hz - 525 MHz |
| 50 ohms: |
10 MHz - 525 MHz |
| 1 Mohm: |
10 Hz - 80 MHz |
| Sensitivity |
50 ohms: |
10 MHz - 525 MHz, 25 mV rms |
| 1 Mohm: |
10 Hz - 80 MHz, 25 mV rms |
| Maximum Input |
50 ohms: |
+10 dBm |
| 1 Mohm: |
1V rms |
| Coupling |
AC |
| Connector |
Replaceable fuse, type BNC (female) |
| Impedance |
1 Mohm nominal shunted by <70 pF or 50 ohm nominal |
| Resolution |
Selectable, 1 Hz - 1 MHz |
High Resolution
1 Mohm mode: |
0.001 Hz for <100 kHz input |
| 0.01 Hz for <1 MHz input |
| 0.1 Hz for <10 MHz input |
| 1 Hz for >10 MHz input: 1-second gate |
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