<html xmlns="http://www.w3.org/1999/xhtml" xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office"><head><!--[if gte mso 9]><xml><o:OfficeDocumentSettings><o:AllowPNG/><o:PixelsPerInch>96</o:PixelsPerInch></o:OfficeDocumentSettings></xml><![endif]--></head><body><div class="ydp28afddafyahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><div></div>
<div dir="ltr" data-setdir="false"><a href="http://wa8lmf.net/APRS_PSK63/index.htm" class="enhancr_card_4069804769">WA8LMF</a> recommends using PSK63 or MFSK16.</div><div><br></div><div id="ydpb33f02a3enhancr_card_4069804769" class="ydpb33f02a3yahoo-link-enhancr-card ydpb33f02a3ymail-preserve-class ydpb33f02a3ymail-preserve-style" style="max-width:400px;font-family:Helvetica Neue, Segoe UI, Helvetica, Arial, sans-serif" data-url="http://wa8lmf.net/APRS_PSK63/index.htm" data-type="YENHANCER" data-size="MEDIUM" contenteditable="false"><a href="http://wa8lmf.net/APRS_PSK63/index.htm" style="text-decoration:none !important;color:#000 !important" class="ydpb33f02a3yahoo-enhancr-cardlink" rel="nofollow" target="_blank"><table border="0" class="ydpb33f02a3card-wrapper ydpb33f02a3yahoo-ignore-table" cellpadding="0" cellspacing="0" style="max-width:400px"><tbody><tr><td width="400"><table border="0" class="ydpb33f02a3card ydpb33f02a3yahoo-ignore-table" cellpadding="0" cellspacing="0" width="100%" style="max-width:400px;border-width:1px;border-style:solid;border-color:rgb(224, 228, 233);border-radius:2px"><tbody><tr><td class="ydpb33f02a3card-primary-image-cell" background="https://s.yimg.com/lo/api/res/1.2/jZZRNAu_6QXMFwQxndNhkQ--~A/Zmk9ZmlsbDt3PTQwMDtoPTIwMDthcHBpZD1pZXh0cmFjdA--/http://wa8lmf.net/Pictures/Messenger-245-UIview-Connect.gif.cf.jpg" bgcolor="#000000" valign="top" height="175" style="background-color: rgb(0, 0, 0); background-size: cover; position: relative; border-radius: 2px 2px 0px 0px; min-height: 175px;"><!--[if gte mso 9]><v:rect fill="true" stroke="false" style="width:396px;height:175px;position:absolute;top:0;left:0;"><v:fill type="frame" color="#000000" src="https://s.yimg.com/lo/api/res/1.2/jZZRNAu_6QXMFwQxndNhkQ--~A/Zmk9ZmlsbDt3PTQwMDtoPTIwMDthcHBpZD1pZXh0cmFjdA--/http://wa8lmf.net/Pictures/Messenger-245-UIview-Connect.gif.cf.jpg"/></v:rect><![endif]--><table border="0" class="ydpb33f02a3card-overlay-container-table ydpb33f02a3yahoo-ignore-table" cellpadding="0" cellspacing="0" style="width:100%"><tbody><tr><td class="ydpb33f02a3card-overlay-cell" background="https://s.yimg.com/cv/ae/nq/storm/assets/enhancrV21/1/enhancr_gradient-400x175.png" bgcolor="transparent" valign="top" style="background-color: transparent; border-radius: 2px 2px 0px 0px; min-height: 175px;"><!--[if gte mso 9]><v:rect fill="true" stroke="false" style="width:396px;height:175px;position:absolute;top:-18px;left:0;"><v:fill type="pattern" color="#000000" src="https://s.yimg.com/cv/ae/nq/storm/assets/enhancrV21/1/enhancr_gradient-400x175.png"/><v:textbox inset="0,0,20px,0"><![endif]--><table border="0" class="ydpb33f02a3yahoo-ignore-table" height="175" style="width: 100%; min-height: 175px;"><tbody><tr><td class="ydpb33f02a3card-richInfo2" style="text-align:left;padding:15px 0 0 15px;vertical-align:top"></td><td class="ydpb33f02a3card-actions" style="text-align:right;padding:15px 15px 0 0;vertical-align:top"><div class="ydpb33f02a3card-share-container"></div></td></tr></tbody></table><!--[if gte mso 9]></v:textbox></v:rect><![endif]--></td></tr></tbody></table></td></tr><tr><td><table border="0" align="center" class="ydpb33f02a3card-info ydpb33f02a3yahoo-ignore-table" cellpadding="0" cellspacing="0" style="background:#fff;position:relative;z-index:2;width:100%;max-width:400px;border-radius:0 0 2px 2px;border-top:1px solid rgb(224, 228, 233)"><tbody><tr><td style="background-color:#ffffff;padding:16px 0 16px 12px;vertical-align:top;border-radius:0 0 0 2px"></td><td style="vertical-align:middle;padding:12px 24px 16px 12px;width:99%;font-family:Helvetica Neue, Segoe UI, Helvetica, Arial, sans-serif;border-radius:0 0 2px 0"><h2 class="ydpb33f02a3card-title" style="font-size: 14px; line-height: 19px; margin: 0px 0px 6px; font-family: Helvetica Neue, Segoe UI, Helvetica, Arial, sans-serif; color: rgb(38, 40, 42);">HF APRS With PSK63</h2><p class="ydpb33f02a3card-description" style="font-size: 12px; line-height: 16px; margin: 0px; color: rgb(151, 155, 167);"></p></td></tr></tbody></table></td></tr></tbody></table></td></tr></tbody></table></a></div><div><br></div><div><br></div><div><br></div>
</div><div id="yahoo_quoted_3580371940" class="yahoo_quoted">
<div style="font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;font-size:13px;color:#26282a;">
<div>
On Wednesday, July 17, 2019, 08:59:30 PM MDT, Phil Karn <karn@ka9q.net> wrote:
</div>
<div><br></div>
<div><br></div>
<div><div dir="ltr">On 7/17/19 17:03, charles berry via hfsig wrote:<div class="yqt1590084755" id="yqtfd98266"><br clear="none">> Looking for a qrp (both SBC & SDR) solution for HF APRS.<br clear="none">><br clear="none">> - Raspberry Pi would be the preferred SBC, but I would consider others<br clear="none">> - SDR, the smaller (foot print) the better. <br clear="none">> - GPS timing will need to be injected at the SBC or SDR, no preference</div><br clear="none"><br clear="none"><br clear="none">What do you mean by "HF APRS"? Transmit, receive or both? Do you mean<br clear="none">full-blown 300 bps AX.25 packet on HF, which doesn't work very well?<br clear="none"><br clear="none">A while ago I packaged my own experimental SDR code into a turnkey APRS<br clear="none">i-gate. It runs on a RPi (or other small Linux system) and currently<br clear="none">uses an AMSAT UK Funcube Dongle Pro+. We have it running on 144.39 at a<br clear="none">few sites. It's receive-only, though.<br clear="none"><br clear="none">Phil<div class="yqt1590084755" id="yqtfd52176"><br clear="none"><br clear="none"><br clear="none"></div></div></div>
</div>
</div></body></html>