Thanks for the reports&nb= sp; via=20 email and Jim for the excellent qso , <= /DIV>

A good launch for th= e =20 new mode !

Of interest , Jim may transmit= the mode=20 on 137 over the weekend

73 - G ,

This was the decode via= the =20 Delf web-sdr h= ttp://websdr.pa3weg.nl/ , with=20 the power to the Ae reduced to 1= watt =20 after the qso . at 5 watts the test was 100%

RX7: <23:54 UTC> <0.0 Hz>= the quick=20 brown fox jumps over the lazey moon 1234567890 G0NBD to=A9enT?tG0NBD@HOTMAI= L.COM> =20 <STOP> <-23 dB>
RX7: <23:57 UTC> <0.0 Hz>&n= bsp;=20 eeuic=B0e ru tps ov[ thK-z mdtho=3Df234r$ie90 %ei=DELti <CANCEL>= <-26=20 dB>
RX7: <00:01 UTC> <-3.3 Hz> t1 b Zboc= c=20 yV =FBbq=B9o <CANCEL> <-25 dB>

From: Graham

Sent: Friday, May 14, 2010 9:31 PM

To: rsgb_lf_group@blacksheep.org=20

Subject: LF: Test of ROS 100 Mf Mode tonight

<= /DIV>

Beacon now back to 20 wat= ts / 60=20 second prf

ROS - 100 Hz MF mod= e 7=20

Dial set 502.000 usb /&nb= sp;RX=20 is ON , (mode 7 & 1 )

QRZ de G0NBD

From: Graham

Sent: Friday, May 14, 2010 7:29 PM

To: rsgb_lf_group@blacksheep.org=20

Subject: Re: LF: Test of ROS 100 Mf Mode tonight

Beacon running at 190 mW&= nbsp;=20 feed to the Ae , qsl from Lee , showing&= nbsp;=20 good copy over 75 miles , over a 310=20 Mtr ridge in the process

M0LMH has received your Radio Message sent at: 18:20 UTC &nb= sp; =20 ( moon is miss decoded)

Received Message: 'the quic= k brown=20 fox jumps over the lazey ofon 1234567890 G0NBD testing 0.19 w &l= t;g0nbd@hotmail.com>= <STOP>'

Thanks for reports = Lee=20

G ..

From: Graham

Sent: Friday, May 14, 2010 1:18 PM

To: rsgb_lf_group@blacksheep.org=20

Subject: LF: Test of ROS 100 Mf Mode tonight

<= /DIV>

From: G ..

Sent: Friday, May 14, 2010 1:17 PM

To: rsgb_lf_group@blacksheep.org=20

Subject: Test of ROS 100 Mf Mode tonight

= Test of ROS 100= Mf Mode tonight

= Thanks to all who supplied information of there respective 500 KHz=20 permitted transmi= ssion=20 bandwidth.

= After some negotiatio= n , Jose has coded a 100 Hz of his RO= S data = ; software , this now gives the system an =20 =91MF=92 m= ode=20 operating inside the 100 Hz licence conditions

= The 7 baud mode is a<= SPAN style=3D"mso-spacerun: yes"> live keyboard mode , being fast enough to maintain a reasonable qso&= nbsp; speed , with selectable afc range

= The 1 baud mode is perhaps more of =20 a beacon mode ,= but offers enhanced performance and is perhaps a contender to the conventional QRS/S&nbs= p; modes

= Transmission of=20 the mode requires the = traditional a= udio to =20 rf translation= , but as it=92s=20 a single carrier system , non linear amplification=20 systems may be deployed.

= This is the first custom built data mode = resulting fro= m the interest and participation of monitoring and active stations , <= SPAN style=3D"mso-spacerun: yes"> transmission system experiment undertaken on 500Khz facilitated by the= OFCOM issued = UK experimental research &= nbsp;permit

= The software may be freely downloaded from &nb= sp;http://rosmodem.wordpress.com/

TX / RX set ::: 502.000 KHz

Carrier centre frequency= =20 will be 503.000 KHz +/= - =20 49 Hz

= Many thanks' to all

= Graham

= G0NBD

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