[hpsdr] pihpsdr

[Roland ETIENNE]

Hi all,

Also playing with pihpsdr for a few days, really nice piece of software as
usual, John!
But I see you can run high sampling rates, I cannot. I am using an Atlas
setup and a direct connection between RPI3 and Métis, only 48K is Ok, higher
is distorted, and this is without any noise blanking.
Cpu charge is around 15 %.
Any idea?

73,
Roland F8CHK


-----Message d'origine-----
De : Hpsdr [mailto:hpsdr-bounces at lists.openhpsdr.org] De la part de Laurence
Barker
Envoyé : dimanche 5 février 2017 13:40
À : hpsdr at lists.openhpsdr.org
Objet : Re: [hpsdr] pihpsdr

***** High Performance Software Defined Radio Discussion List *****

I wasn't getting that on my USB based Ozy. I did find that the behaviour was
sample rate and noise blanker setting dependent - if you selected too high a
sample rate it would stop functioning. With my RPI3 I was able to get 192K
samples per second, but with no NB selected; you needed a lower sample rate
with NB.

Is the behaviour you get affected by sample rate, NB, AGC etc selection?



Laurence Barker G8NJJ

laurence at nicklebyhouse.co.uk

-----Original Message-----
From: Hpsdr [mailto:hpsdr-bounces at lists.openhpsdr.org] On Behalf Of Bob
Cowdery
Sent: 05 February 2017 10:46
To: hpsdr at lists.openhpsdr.org list <hpsdr at lists.openhpsdr.org>
Subject: [hpsdr] pihpsdr

***** High Performance Software Defined Radio Discussion List *****

Hi all,

Thanks John for a very nice piece of software. Just put it on one of my pi
3's running over RDP (latest production version). Listening to 40m as I
write this.  I have a basic Metis system so obviously running the 'old'
protocol. I do notice there is a rhythmic blip every 2-3 seconds which shows
as evenly spaced horizontal bars on the waterfall and a rise in the noise
floor on the spectrum. I don't get this with other software. Sounds like a
buffer alignment problem or if this is just me then anyone any idea what
might cause it.

73's Bob G3UKB

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