Oh OK, I can see that possibly working for my application. 

 Do you happen to Have any insight on what Rob was talking about,  if gr-uhd 
Will automatically turn on the TX0 output when the export is ‘True’ Or do you 
know if that should instead be passed in a Device argument?

I can also just test this a little later and see if the output light comes on. 

<end transmission>

> On Jan 14, 2022, at 10:28, Marcus D. Leech <patchvonbr...@gmail.com> wrote:
> 
> On 2022-01-14 10:07, Paul Atreides wrote:
>> Thanks Marcus, I’ve been scouring the Rubiks cube that is the knowledge base 
>> for about a week now. I’ve also watched the Dan Baker GRCON2019 talk and 
>> followed the references there as well.
>> 
>> The reference you linked is very helpful in a lot of cases, but in this one 
>> it doesnt address (anywhere I’ve seen) that in order to have the device 
>> operate with local oscillator sharing between RF 0 and RF 1, physically 
>> connecting the radio back to itself needs to be done. I’ve seen plenty of 
>> things about “external LO” but to me that term is a little confusing because 
>> it sounds like it’s external LO to the device.
>> 
>> I guess I was just thinking it might be a good idea to let N321 users know 
>> that in order to achieve phase coherence between INTERNAL channels, it’s 
>> going to be more work than a B210.
>> 
>> Just my 2 cents.
>> 
>> 
> You should be able to get adequate phase-coherence in a single N321 without 
> using LO-sharing at all--I THINK that the synthesizers support
>   phase-resynch on tuning, so if the tune commands are wrapped up in timed 
> commands, you should get internal phase coherence without
>   resorting to LO sharing.
> 
> But I don't have one of these in my collection, so I can't test that 
> hypothesis...
> 
> 
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