Reveiverclock? Is it for decimation of sampling rate?

#1 · 09/06/2021, 14:22

1, What's the purpose of this Reveiverclock? Is it for decimation of sampling rate?

AARTSAAPI_ConfigRoot(&deviceId, &root)；
AARTSAAPI_ConfigFind(&deviceId, &root, &config, L"device/receiverclock") ；

#2 · 10/06/2021, 07:41

This is the basic hardware sampling clock of the device (actually the A/D and D/A clock is a multiple of this due to oversampling).

The usable clock values are limited by the device options, the available power and USB connection speed.

Only a fixed set of values are available and can be retrieved using the AARTSAAPI_ConfigGetInfo call.

The effective IQ bandwidth cannot exceed this clock. The valid frequency span is approximately 83% of this frequency due to the transition band of the filters.