This adjustment requires a minimum warmup time of 24 hours. The DUT must be turned on (that is, not on standby) for the entire warmup period.
|
|
This adjustment requires a minimum warmup time of 24 hours. The DUT must be turned on (that is, not on standby) for the entire warmup period. |
The Frequency Reference test verifies that the 10 MHz Frequency Reference is operating within specification. If the frequency exceeds the 6 month drift limit, a recommendation is made in the report to perform the 10 MHz Frequency Reference adjustment.
The source is provided by a frequency standard with an output of 10 MHz. At the RF input to the VSA, the source amplitude must be 0 dBm or less. The internal frequency reference is adjusted to 10 MHz with minimum deviation.
Related performance test: Frequency Reference Accuracy
|
Test Equipment |
Recommended Model Number |
|---|---|
|
Frequency standard |
Microsemi 5071A |
|
Fixed attenuator, 20 dB |
8491A Option 020 |
|
Cable, BNC |
8120-2582 |
|
Adapter, Type-N (m) to BNC (f) |
1250-1476 |
