[Discuss-gnuradio] RX Mux value with dissimilar d'cards, USRP1

[Steven Clark]

Hi-

Is it possible to receive simultaneously from 1 WBX card, and 1 BasicRX card, on the same USRP1? Attempting this with GRC gives:

"Cannot compute dual mux when mixing quadrature and non-quadrature subdevices"

I understand that the WBX is quadrature while the BasicRX is not, so this should require 3 of the 4 ADCs.

The WBX is in side A, the BasicRX is in side B, RXA slot.

ADC0 gets WBX I.

ADC1 gets WBX Q.

ADC2 gets BasicRX.

ADC3 is ignored.

An RX Mux value of 0xF210F210 should accomplish what I want, but I see this note: "All Q's must be 0xf or none of them may be 0xf", which this violates.

What gives? Where is this constraint coming from?

-Steven