<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">Ralph -<div><br></div><div>I realize this is off topic, but if you have such severe range differences between CS and PS performance, it is probably a GPRS uplink power control configuration problem.</div><div><br></div><div>Note: I am no longer affiliated with Range Networks, just trying to be helpful.</div><div><br></div><div>— David</div><div><br></div><div><br></div><div><div><div>On Jan 23, 2014, at 20:12, Ralph A. Schmid, dk5ras <<a href="mailto:ralph@schmid.xxx">ralph@schmid.xxx</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div style="margin: 0cm 0cm 0.0001pt 3.75pt; font-size: 12pt; font-family: 'Times New Roman', serif; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">OpenBTS supports GPRS, but at least for me it does not work very reliably, I consider this only a proof of concept. While voice/SMS range is up to 200m, GPRS breaks down after 5m (!) distance, and the connection stalls after a while, requiring a restart of OpenBTS. I am using an USRP1 with WBX board.<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt 3.75pt; font-size: 12pt; font-family: 'Times New Roman', serif; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"> </span></div><div style="margin: 0cm 0cm 0.0001pt 3.75pt; font-size: 12pt; font-family: 'Times New Roman', serif; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Ralph.<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt 3.75pt; font-size: 12pt; font-family: 'Times New Roman', serif; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"> </span></div><div style="margin: 0cm 0cm 0.0001pt 3.75pt; font-size: 12pt; font-family: 'Times New Roman', serif; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);"><a name="_MailEndCompose"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"> </span></a></div></blockquote></div><br></div></body></html>