* is it possible to set tx power below 0 dbm
@ 2017-03-06 12:13 Xue Liu
2017-03-06 17:13 ` Adrian Chadd
0 siblings, 1 reply; 3+ messages in thread
From: Xue Liu @ 2017-03-06 12:13 UTC (permalink / raw)
To: ath10k
Hello everyone,
I am working on a project which uses two WLE800VX WLAN cards and two
special directional attenna groups. These directional attenna group stay
very close (1~3cm) with each other.
The problem is that now 0 dBm transmission power is still too high for
us. The SNR is very high ( about 90 dB), but the physical bandwith is
low (526.5 Mbps). So I would like to know is it possible to set the tx
power to a even lower level (-10 dBm or more) ?
Thanks a lot.
Regards,
Xue Liu
--
M.Sci.
Embedded Software Entwicklung
DKS Dienstleistungsgesellschaft
für Kommunikationsanlagen des
Stadt- und Regionalverkehrs mbH
Robert-Perthel-Str. 79
D-50739 Köln
Fon: +49 221 954442-43
Fax: +49 221 954442-23
E-Mail: xue.liu@dks-koeln.de
Web: www.dks-koeln.de
Geschäftsführung: Christian Döring, Ralf Kochs
Aufsichtsratsvorsitzender: Jörn Schwarze
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: is it possible to set tx power below 0 dbm
2017-03-06 12:13 is it possible to set tx power below 0 dbm Xue Liu
@ 2017-03-06 17:13 ` Adrian Chadd
2017-03-07 7:51 ` Xue Liu
0 siblings, 1 reply; 3+ messages in thread
From: Adrian Chadd @ 2017-03-06 17:13 UTC (permalink / raw)
To: Xue Liu; +Cc: ath10k
hiya,
I don't think it's something that you can do with any accuracy out of
the box? You'd need some design help from QCA to figure out which NICs
would let you set such low TX power levels accurately.
-adrian
On 6 March 2017 at 04:13, Xue Liu <xue.liu@dks-koeln.de> wrote:
> Hello everyone,
>
> I am working on a project which uses two WLE800VX WLAN cards and two special
> directional attenna groups. These directional attenna group stay very close
> (1~3cm) with each other.
>
> The problem is that now 0 dBm transmission power is still too high for us.
> The SNR is very high ( about 90 dB), but the physical bandwith is low (526.5
> Mbps). So I would like to know is it possible to set the tx power to a even
> lower level (-10 dBm or more) ?
>
> Thanks a lot.
>
> Regards,
>
> Xue Liu
>
> --
> M.Sci.
>
> Embedded Software Entwicklung
>
> DKS Dienstleistungsgesellschaft
> für Kommunikationsanlagen des
> Stadt- und Regionalverkehrs mbH
>
> Robert-Perthel-Str. 79
> D-50739 Köln
>
> Fon: +49 221 954442-43
> Fax: +49 221 954442-23
> E-Mail: xue.liu@dks-koeln.de
> Web: www.dks-koeln.de
>
> Geschäftsführung: Christian Döring, Ralf Kochs
>
> Aufsichtsratsvorsitzender: Jörn Schwarze
>
> Sitz der Gesellschaft: Köln
>
> Registergericht: Köln, HRB 4521
>
> UST-IDNr: DE154089761
>
> Wichtiger Hinweis: Diese E-Mail und etwaige Anlagen können Betriebs- oder
> Geschäftsgeheimnisse, dem Anwaltsgeheimnis unterliegende oder sonstige
> vertrauliche Informationen enthalten. Sollten Sie diese E-Mail irrtümlich
> erhalten haben, ist Ihnen der Status dieser E-Mail bekannt. Bitte
> benachrichtigen Sie uns in diesem Fall sofort durch Antwort-Mail und löschen
> Sie diese E-Mail nebst etwaigen Anlagen von Ihrem System. Ebenso dürfen Sie
> diese E-Mail oder ihre Anlagen nicht kopieren oder an Dritte weitergeben.
> Vielen Dank!
>
> Important note: This e-mail and any attachment are confidential and may
> contain trade secrets and may well also be legally privileged or otherwise
> protected from disclosure. If you have received it in error, you are on
> notice of its status. Please notify us immediately by reply e-mail and then
> delete this e-mail and any attachment from your system. If you are not the
> intended recipient please understand that you must not copy this e-mail or
> any attachment or disclose the contents to any other person. Thank you for
> your cooperation.
>
>
> _______________________________________________
> ath10k mailing list
> ath10k@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/ath10k
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: is it possible to set tx power below 0 dbm
2017-03-06 17:13 ` Adrian Chadd
@ 2017-03-07 7:51 ` Xue Liu
0 siblings, 0 replies; 3+ messages in thread
From: Xue Liu @ 2017-03-07 7:51 UTC (permalink / raw)
To: Adrian Chadd; +Cc: ath10k
Hello
Thanks a lot for the suggestion.
On 06.03.2017 18:13, Adrian Chadd wrote:
> hiya,
>
> I don't think it's something that you can do with any accuracy out of
> the box? You'd need some design help from QCA to figure out which NICs
> would let you set such low TX power levels accurately.
>
>
>
> -adrian
>
> On 6 March 2017 at 04:13, Xue Liu <xue.liu@dks-koeln.de> wrote:
>> Hello everyone,
>>
>> I am working on a project which uses two WLE800VX WLAN cards and two special
>> directional attenna groups. These directional attenna group stay very close
>> (1~3cm) with each other.
>>
>> The problem is that now 0 dBm transmission power is still too high for us.
>> The SNR is very high ( about 90 dB), but the physical bandwith is low (526.5
>> Mbps). So I would like to know is it possible to set the tx power to a even
>> lower level (-10 dBm or more) ?
>>
>> Thanks a lot.
>>
>> Regards,
>>
>> Xue Liu
>>
>> --
>> M.Sci.
>>
>> Embedded Software Entwicklung
>>
>> DKS Dienstleistungsgesellschaft
>> für Kommunikationsanlagen des
>> Stadt- und Regionalverkehrs mbH
>>
>> Robert-Perthel-Str. 79
>> D-50739 Köln
>>
>> Fon: +49 221 954442-43
>> Fax: +49 221 954442-23
>> E-Mail: xue.liu@dks-koeln.de
>> Web: www.dks-koeln.de
>>
>> Geschäftsführung: Christian Döring, Ralf Kochs
>>
>> Aufsichtsratsvorsitzender: Jörn Schwarze
>>
>> Sitz der Gesellschaft: Köln
>>
>> Registergericht: Köln, HRB 4521
>>
>> UST-IDNr: DE154089761
>>
>> Wichtiger Hinweis: Diese E-Mail und etwaige Anlagen können Betriebs- oder
>> Geschäftsgeheimnisse, dem Anwaltsgeheimnis unterliegende oder sonstige
>> vertrauliche Informationen enthalten. Sollten Sie diese E-Mail irrtümlich
>> erhalten haben, ist Ihnen der Status dieser E-Mail bekannt. Bitte
>> benachrichtigen Sie uns in diesem Fall sofort durch Antwort-Mail und löschen
>> Sie diese E-Mail nebst etwaigen Anlagen von Ihrem System. Ebenso dürfen Sie
>> diese E-Mail oder ihre Anlagen nicht kopieren oder an Dritte weitergeben.
>> Vielen Dank!
>>
>> Important note: This e-mail and any attachment are confidential and may
>> contain trade secrets and may well also be legally privileged or otherwise
>> protected from disclosure. If you have received it in error, you are on
>> notice of its status. Please notify us immediately by reply e-mail and then
>> delete this e-mail and any attachment from your system. If you are not the
>> intended recipient please understand that you must not copy this e-mail or
>> any attachment or disclose the contents to any other person. Thank you for
>> your cooperation.
>>
>>
>> _______________________________________________
>> ath10k mailing list
>> ath10k@lists.infradead.org
>> http://lists.infradead.org/mailman/listinfo/ath10k
> _______________________________________________
> ath10k mailing list
> ath10k@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/ath10k
--
M.Sci.
Embedded Software Entwicklung
DKS Dienstleistungsgesellschaft
für Kommunikationsanlagen des
Stadt- und Regionalverkehrs mbH
Robert-Perthel-Str. 79
D-50739 Köln
Fon: +49 221 954442-43
Fax: +49 221 954442-23
E-Mail: xue.liu@dks-koeln.de
Web: www.dks-koeln.de
Geschäftsführung: Christian Döring, Ralf Kochs
Aufsichtsratsvorsitzender: Jörn Schwarze
Sitz der Gesellschaft: Köln
Registergericht: Köln, HRB 4521
UST-IDNr: DE154089761
Wichtiger Hinweis: Diese E-Mail und etwaige Anlagen können Betriebs- oder Geschäftsgeheimnisse, dem Anwaltsgeheimnis unterliegende oder sonstige vertrauliche Informationen enthalten. Sollten Sie diese E-Mail irrtümlich erhalten haben, ist Ihnen der Status dieser E-Mail bekannt. Bitte benachrichtigen Sie uns in diesem Fall sofort durch Antwort-Mail und löschen Sie diese E-Mail nebst etwaigen Anlagen von Ihrem System. Ebenso dürfen Sie diese E-Mail oder ihre Anlagen nicht kopieren oder an Dritte weitergeben. Vielen Dank!
Important note: This e-mail and any attachment are confidential and may contain trade secrets and may well also be legally privileged or otherwise protected from disclosure. If you have received it in error, you are on notice of its status. Please notify us immediately by reply e-mail and then delete this e-mail and any attachment from your system. If you are not the intended recipient please understand that you must not copy this e-mail or any attachment or disclose the contents to any other person. Thank you for your cooperation.
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2017-03-07 7:52 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2017-03-06 12:13 is it possible to set tx power below 0 dbm Xue Liu
2017-03-06 17:13 ` Adrian Chadd
2017-03-07 7:51 ` Xue Liu
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