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From: | Alex Batts |
Subject: | Re: BladeRF 2.0 Micro - Using Bias Tees with GRC |
Date: | Mon, 10 Aug 2020 14:51:32 -0400 |
On 08/10/2020 01:49 PM, Alex Batts wrote:
> Hello all,
>
> I am wondering if anyone that has used the bladeRF 2.0 micro with the
> bias tees was able to keep the bias tees enabled once executing a GRC
> flowgraph. I am able to enable the bias tees with the bladeRF-cli
> commands, but once I execute a GRC flowgraph they become disabled.
>
> Note: I recognize this is not exactly the best question for these
> forums, but I have tried contacting Nuand four times over the last
> week and a half, both through phone and email, and I have tried
> posting to their forums (any forum post has to be approved by a
> moderator), and I have had no luck with any of the attempts. So I was
> wondering if anyone else on here has had a similar experience and
> solved their issue.
>
> I'm running Ubuntu 20 on an RPi4 8GB.
>
> Thank you in advance,
>
> Alex
Given that Gnu Radio creates a brand-new session with the device, it's
not surprising to me that "device init" turns off the bias-T.
But I'll note that the gr-osmosdr driver for BladeRF includes a
"biastee" device argument, which if present turns on the bias tee.
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