[hpsdr] Fwd: Re: pihpsdr

[Bob Cowdery]

Hi Jan. Its a 2A supply so should be fine. I've tried knocking WiFi and 
Bluetooth on the head but no luck so far.


On 2/5/2017 5:42 PM, dl2hbj at gmail.com wrote:
> Hi Bob,
>
> I had a similar problem which was gone with a more powerfully power supply.
>
> Jan, DL2HBJ
>
>> Am 05.02.2017 um 09:31 schrieb Bob Cowdery <bob at bobcowdery.plus.com>:
>>
>> ***** High Performance Software Defined Radio Discussion List *****
>>
>> I've got it running on the 7" touch screen now, looks fantastic but unfortunately didn't fix the blip even after I stopped the xrdp service.
>>
>> pihpsdr shows about 35%, Xorg 20% and the rest very little. Free mem about 520K.
>>
>> 73 Bob G3UKB
>>
>>> On 2/5/2017 1:24 PM, Bob Cowdery wrote:
>>> ***** High Performance Software Defined Radio Discussion List *****
>>>
>>> Only 48K works, higher rates are not intelligible. I can run 384k
>>> normally so you are probably correct that RDP is putting extra load on
>>> the pi. I do have the standard 7" screen and enclosure which I plan to
>>> set up so I will let you know how I get on with that.
>>>
>>> Bob
>>>
>>>
>>>> On 2/5/2017 1:15 PM, John Melton wrote:
>>>> ***** High Performance Software Defined Radio Discussion List *****
>>>>
>>>> Hi Bob,
>>>>
>>>> Do you get the blip regardless of sample rate?
>>>>
>>>> I suspect that the problem is caused by running RDP but not 100% sure
>>>> as I cannot test because I do not run any Microsoft software here.
>>>>
>>>> -- John
>>>>
>>>>
>>>>> On 05/02/17 12:40, Laurence Barker wrote:
>>>>> ***** 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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