- 537A Agilent Frequency MeterCondition: UsedFrequency: 12.4 GHz
- J532A Agilent Frequency MeterCondition: UsedFrequency: 8.2 GHz
- K532A Agilent Frequency MeterCondition: UsedFrequency: 26 GHz
- P532A Agilent Frequency MeterCondition: UsedFrequency: 18 GHz
- R532A Agilent Frequency MeterCondition: UsedFrequency: 40 GHz