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The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: This is not proposed as a solution but maybe as a further avenue to explore for experimentation, It is possible to obtain (ebay, fleamarkets etc.) sometimes at very low cost "Thin clients". I have one by WYSE that runs WinCE. This has Ethernet port and USB connectors also Audio I/O (usual PC jacks) and monitor (VGA).. I have no idea of the capabilities or specs of these interfaces but there might be some room for experiment. The unit I have runs from 5Volts via a small separate PSU. Physically the units are usually quite small. [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [64.12.143.79 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (g4gvw[at]aol.com) -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -0.0 SPF_PASS SPF: sender matches SPF record 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: f82786fce13a7bdfc3036eb41b44b924 Subject: Re: LF: Microphone via WLAN (WiFi) ? Content-Type: multipart/alternative; boundary="------------000807020902040601020708" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.8 required=5.0 tests=HTML_30_40,HTML_MESSAGE autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false This is a multi-part message in MIME format. --------------000807020902040601020708 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit This is not proposed as a solution but maybe as a further avenue to explore for experimentation, It is possible to obtain (ebay, fleamarkets etc.) sometimes at very low cost "Thin clients". I have one by WYSE that runs WinCE. This has Ethernet port and USB connectors also Audio I/O (usual PC jacks) and monitor (VGA).. I have no idea of the capabilities or specs of these interfaces but there might be some room for experiment. The unit I have runs from 5Volts via a small separate PSU. Physically the units are usually quite small. 73 On 08/03/14 21:25, Stefan Schäfer wrote: > Hi Markus, > > Am 08.03.2014 21:49, schrieb Markus Vester: >> Hi Stefan, >> that one looks like an analog video system, 2.4 GHz FM, with a >> dedicated receiver box. I once owned a similar set and attempted to >> transfer 137 kHz directly through the video channel, without a mixer. >> But with the strong in-band utility stations, the dynamic range >> seemed too poor. > How many dBs? > >> On the other hand I'm not sure whether WLAN / WiFi standard would be >> the best choice either when looking for low battery drain. > What could be the alternative? It must not be a big project with > special parts, a project for experts. Ideally part 2 of the system, > described in my initial mail, should appear as a normal external USB > soundcard to the PC. > > But generally you know what i mean or thinking about? > > There are cheap soundcards with 100 dB dynamic range, with some luck > even 120 dB (in 1 Hz). They all run at USB, i.e. 5V, maybe even 3.3V > is OK for the chip. And also the WLAN chips, running at 5V, consuming > just a few 10 mW. I also saw cheap high gain WLAN directional antennas > at amazon... > > I'm considering to start a request to the DARC, maybe DH5FFL, you know > him? He will at least know who's the man for such a project! Maybe > DF1TY, you know, from the CQDL ;-) > > 73, Stefan > >> 73, >> Markus (DF6NM) >> >> *From:* Stefan Schäfer >> *Sent:* Saturday, March 08, 2014 9:11 PM >> *To:* rsgb_lf_group@blacksheep.org >> *Subject:* Re: LF: Microphone via WLAN (WiFi) ? >> >> ... >> But now i found this: >> http://www.amazon.de/Kamera-%C3%9Cberwachungskamera-Empf%C3%A4nger-Zubeh%C3%B6r-Wireless/dp/B004AZL6AE/ref=pd_cp_ce_2 >> >> ... -- 73 de pat g4gvw qth felixstowe, uk (east coast, county of suffolk) --------------000807020902040601020708 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit This is not proposed as a solution but maybe as a further avenue to explore for experimentation, It is possible to obtain (ebay, fleamarkets etc.) sometimes at very low cost "Thin clients". I have one by WYSE that runs WinCE. This has Ethernet port and USB connectors also Audio I/O (usual PC jacks) and monitor (VGA).. I have no idea of the capabilities or specs of these interfaces but there might be some room for experiment. The unit I have runs from 5Volts via a small separate PSU. Physically the units are usually quite small.

73 


On 08/03/14 21:25, Stefan Schäfer wrote:
Hi Markus,

Am 08.03.2014 21:49, schrieb Markus Vester:
Hi Stefan,
 
that one looks like an analog video system, 2.4 GHz FM, with a dedicated receiver box. I once owned a similar set and attempted to transfer 137 kHz directly through the video channel, without a mixer. But with the strong in-band utility stations, the dynamic range seemed too poor.
How many dBs?

 
On the other hand I'm not sure whether WLAN / WiFi standard would be the best choice either when looking for low battery drain.
What could be the alternative? It must not be a big project with special parts, a project for experts. Ideally part 2 of the system, described in my initial mail, should appear as a normal external USB soundcard to the PC.

But generally you know what i mean or thinking about?

There are cheap soundcards with 100 dB dynamic range, with some luck even 120 dB (in 1 Hz). They all run at USB, i.e. 5V, maybe even 3.3V is OK for the chip. And also the WLAN chips, running at 5V, consuming just a few 10 mW. I also saw cheap high gain WLAN directional antennas at amazon...

I'm considering to start a request to the DARC, maybe DH5FFL, you know him? He will at least know who's the man for such a project! Maybe DF1TY, you know, from the CQDL ;-)

73, Stefan

 
73,
Markus (DF6NM)

Sent: Saturday, March 08, 2014 9:11 PM
Subject: Re: LF: Microphone via WLAN (WiFi) ?

...

-- 
73 de pat g4gvw
qth felixstowe, uk
(east coast, county of suffolk)
--------------000807020902040601020708--