Specifications

Chapter 1 Performance Tests
Agilent 53210A/53220A/53230A Complete Performance Tests
Assembly-Level Service Guide 59
Test 6b: (Q) Frequency Accuracy - Channel 2/3, Option
115 (15 GHz Microwave Channel)
This test verifies the frequency accuracy of Option 115 Channel 2
(53210A) or Channel 3 (53220A/53230A) at three frequencies (300 MHz,
3.1 GHz, and 15.0 GHz).
Equipment
• FS725 Rubidium Timebase
• Agilent E8257D-520 Microwave Signal Generator
• Agilent 10503A BNC Cable (2)
• Agilent 11500E (3.5) mm cable
• Agilent 1250-1250 N(M) to SMA(F)
E8257D-520 Setup
• Output Frequency: 300 MHz
•Output Power: -23 dBm
NOTE The input power MUST be -23 ± 0.5 dBm at the channel 3 input
connector. If necessary, use a 3.5 mm cable with certified loss at
300 MHz or a power meter to verify input power.
Counter Setup
1Press the Preset key to preset the counter.
2 Connect the equipment as shown in Figure 1-9.