[hfsig] Fwd: Comment Submission from Vince Staffo WB2FYZ - 4/21/2016

Zoltan Doczi zoltan.doczi at gmail.com
Mon Apr 25 06:53:08 CDT 2016


Also here are my spots using RPi 3 with my poor random wire antenna:
http://wsprnet.org/olddb?mode=html&band=20&limit=50&findcall=ha7dcd&findreporter=&sort=date

On Sun, Apr 24, 2016 at 9:53 PM, Zoltan Doczi <zoltan.doczi at gmail.com>
wrote:

> Hi Vince,
>
> The shield itself is perfectly fits RPi 3, as there were no significant
> mechanical change from RPi 2 to RPi 3 upgrade.
>
> However there are other chipset architecture changes which influence the
> software operation when used with rpitx (FM,SSB modes)
>
> rpitx is shifting randomly +2.8 MHz (tracked down to dynamic CPU frequency
> feature of RPi 3: https://github.com/F5OEO/rpitx/issues/21 )
> Here already a command line workaround for that, also I'm iterating with
> the developers.
> https://github.com/F5OEO/rpitx
>
> I got an RPi 3 for a few days and made some initial tests. It looks like
> that WsprryPi (WSPR) operation works stable, without any shifting issue so
> far. I was running on my desktop for a few hours, monitored with a spectrum
> analyzer and there was no prolem.
> https://github.com/JamesP6000/WsprryPi
>
> 73,
> HA7DCD
> Zoltan
>
> On Fri, Apr 22, 2016 at 1:55 AM, TAPR Office <taproffice at tapr.org> wrote:
>
>>
>> Begin forwarded message:
>>
>> *From:* vince767 at gmail.com
>> *Date:* April 21, 2016 at 6:04:09 PM CDT
>> *To:* TAPROFFICE at tapr.org
>> *Subject:* *Comment Submission from Vince Staffo WB2FYZ - 4/21/2016*
>> *Reply-To:* vince767 at gmail.com
>>
>> Name:    Vince Staffo WB2FYZ
>> Email:    vince767 at gmail.com
>>
>> Message:    Does the Raspberry Pi QRP WSPR TX shield
>> work with the Raspberry Pi 3 ?
>>
>> Thank You,
>>
>> Vince - WB2FYZ
>>
>> ---------------------------------------
>>
>> Name: Vince Staffo
>> Callsign: WB2FYZ
>> Address: 10 Monroe St.
>> City: ILION
>> State: NY
>> Country: USA
>> Zip: 13357
>> Phone: 3158943265
>>
>>
>> _______________________________________________
>> hfsig mailing list
>> hfsig at tapr.org
>> http://www.tapr.org/mailman/listinfo/hfsig
>>
>>
>
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