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<DIV><FONT size=2 face=Arial>Hi Scott,</FONT></DIV>
<DIV><FONT size=2 face=Arial>It is possible that Flex Radio Systems had
different versions of programs in their library for Europe. I noticed after
downloading of a new version after 2005</FONT></DIV>
<DIV><FONT size=2 face=Arial>that certain improvements were made and I could not
choose any longer said 10 kHz bandwidth and the keying speed was also limited to
30-45 wpm.</FONT></DIV>
<DIV><FONT size=2 face=Arial>It was great fun to send short music tu-nes in ssb
to show the outstanding per-formance of the SDR 1000, having in mind that this
was illegal in Sweden and most other countries in Europe. A FM-type of high
reproduction quality was confirmed by listeners who were instruc-ted to widen
their rx bandwidth.</FONT></DIV>
<DIV><FONT size=2 face=Arial>I´ll try to put my vintage SDR 1000 in operation
again and hope to find the old program on one of my defunct
compu-ters.</FONT></DIV>
<DIV><FONT size=2 face=Arial>vy 73 es cuagn de</FONT></DIV>
<DIV><FONT size=2 face=Arial>SM6OMH Willi</FONT></DIV>
<BLOCKQUOTE
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=scott.traurig@gmail.com href="mailto:scott.traurig@gmail.com">Scott
Traurig</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=wi.re@telia.com
href="mailto:wi.re@telia.com">Willi Reppel</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Cc:</B> <A title=vk5lb@yahoo.com.au
href="mailto:vk5lb@yahoo.com.au">Dean</A> ; <A title=hpsdr@openhpsdr.org
href="mailto:hpsdr@openhpsdr.org">OpenHPSDR</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, April 13, 2020 8:37
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [hpsdr] Pan adapter passband
accuracy</DIV>
<DIV><BR></DIV>
<DIV dir=ltr>
<DIV>I had a Flex-3000. The PowerSDR software client application provided by
Flex that ran that and the other legacy series Flex radios allowed a 10KHz
transmit passband (20KHz on AM).</DIV>
<DIV><BR></DIV>
<DIV>The SmartSDR software client provided by Flex for the current day Flex
radios also allows 10KHz (20KHz on AM).</DIV>
<DIV><BR></DIV>
<DIV>The software clients for openHPSDR architecture hardware, PowerSDR mRX PS
and Thetis, both allow 10KHz (20KHz on AM).</DIV>
<DIV><BR></DIV>
<DIV>As far as I know there were no versions of the above applications that
limited the TX passband to 3KHz.</DIV>
<DIV><BR></DIV>
<DIV>There are no regulations in the US that set limits on the
bandwidth of amateur radio phone signals except on 60M.</DIV>
<DIV><BR></DIV>
<DIV>73,</DIV>
<DIV><BR></DIV>
<DIV>Scott/w-u-2-o</DIV>
<DIV><BR></DIV>
<DIV class=gmail_quote>
<DIV dir=ltr class=gmail_attr><BR></DIV>
<DIV dir=ltr class=gmail_attr>On Mon, Apr 13, 2020 at 4:13 AM Willi Reppel
<<A href="mailto:wi.re@telia.com">wi.re@telia.com</A>> wrote:<BR></DIV>
<BLOCKQUOTE
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class=gmail_quote><BR>Hi Dean,<BR>Sending from Sweden to "down under" my
best wishes for your Happy Ester <BR>festivities.<BR>The problem you report
is well know to older users of HPSDR. In the <BR>beginning of Gerald
Youngblood´s Software Radio programs, you could choose <BR>all audio
frequencies in SSB from zero to 10 kHz. I made short test QSOs <BR>with ham
operators of my region here and they reported a FM-radio-like audio
<BR>quality when trans-mitting a short tune of musik with an audio
bandwidth of <BR>10 kHz. However, the receiver of my illlegal transmission
was asked to tune <BR>his bandwidth in recption to a maxi-mum.<BR>Later on
the US-authorities interfered and reminded Flex Radio Inc. to <BR>restrict
the choice of audio bandwidth to<BR>max 3000 Hz. They complied and in later
versions of HPSDR software radio <BR>programs, the bandwidth became limited
to the legal regulations in the US. <BR>Yet, may be that some smart
programmers change this part of HPSDR and <BR>allowing themselves a greater
bandwidth again.<BR>This is my guess work, but::What can be done will be
done will be done by <BR>wizard programmers.<BR>vy 73 gl es cuagn
de<BR>SM6OMH Willi<BR></BLOCKQUOTE></DIV></DIV></BLOCKQUOTE></BODY></HTML>