Hello All,

 

We recently had to upgrade the receivers on our products to the E320 due to
the obsolescence of the E310.

 

While running the same program on the E320 I observed the following issues:

 

1.      AD9361 temperature - on the E310, B210 this temperature used to be
around 40 to 45 C, with all channels operating - namely 2 Tx and 2 Rx. MCR
of 16 MHz.
On the E320, the temperature has jumped to 74C when only the Rx channels are
operating, while it goes up to 85C-90C when the Tx channels (i.e. all 4
channels - 2 Tx, 2Rx) are also operating. Is this normal ?
2.      E320 specific issue - when streaming data to the host PC, stopping
the stream during times of inactivity [self.uhd_usrp_source_0.stop()]
actually causes the temperature of the AD9361 to creep up over time.
3.      E320 specific issue - when streaming data, reading of the new set of
mother board sensors available on the E320 (e.g. FPGA temperature, fan,
ref_locked etc) causes the stream to stop, to process the sensor query - is
this normal. This does not happen when processing the AD9361 sensor data.

 

UHD version 4.8.0.0

GNU Radio version 3.10.12.0 

Python 3.12.9

 

I would love it if it is something I am doing wrong.

 

All data processing is done on the host, as I understand that the E320 does
not support RFNOC updates with a free licence of Vivaldi (unlike the E310).
So, the E320 is only being used as a layer between the AD9361 and the SFP
module.

 

Thanks,

 

Indrajit.

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