My guess is that the startup transient time
On the B210 is slightly longer and you’ll need to compensate for that.
On average the B210 output power will be perhaps 3-4dB lower than N310. But
that should not make much difference at close range.
Sent from my iPhone
> On Mar 4, 2021, at 5:18 AM, Johannes Demel via USRP-users
> wrote:
>
> Hi all,
>
> I see some very odd behavior with a B210. I have this simple sine flowgraph
> attached. My RX and TX antennae are approximately 1m apart. I just send a
> sine and receive it with an acceptable power level.
>
> Though, my application uses burst transmission. Here, things start to fail.
> For some reason, TX bursts have very low output power. I make sure, all
> bursts are scaled to match the output level in my `sine_test.grc` flowgraph.
>
> With 2 N310s, I can observe very reliable communication. If I swap one of
> those for a B210, I'm barely able to receive a B210s own bursts. I set TX
> gain to 90 and I could observe an improvement. Though, this is still far from
> what I'd expect after my sine test.
>
> Is there an issue with burst transmission and B210s? Do I need to take any
> special precautions?
>
> Cheers
> Johannes
>
>
>
> --
> Johannes Demel M.Sc.
> Research Engineer
>
> University of Bremen
> Department of Communications Engineering
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>
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>
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>
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