<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1">
</head>
<body bgcolor="#FFFFFF" text="#000000">
Hello,<br>
<br>
I hear a srtong short signal spike right after ending of digimode
transmission. If Mecrury's RF cable is<br>
disconnected then the signal spike dissapears. The singal spike is a
steady tone which actually is the end<br>
of RTTY transmission in my cace. It seems like T/R switching
sequence is not very good in digimodes.<br>
My subjective opinion is that PowerSDR receives<span
class="Apple-style-span" style="color: rgb(51, 51, 51);
font-family: arial, sans-serif; font-size: 24px; font-style:
normal; font-variant: normal; font-weight: normal; letter-spacing:
normal; line-height: normal; orphans: 2; text-align: -webkit-auto;
text-indent: 0px; text-transform: none; white-space: normal;
widows: 2; word-spacing: 0px; -webkit-text-decorations-in-effect:
none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width:
0px; background-color: rgb(245, 245, 245); "><span class="hps"></span><span
class="Apple-converted-space"></span><span class="hps"></span></span>
RX command sent by digimode program, T/R relays<br>
are going to RX despite it's not an actual end of transmission. It
has been there since the beginning as <br>
far as I remember with all setups I've been used.<br>
<br>
My current HPSDR setup is as follows:<br>
* Ozy, TAPR Mercury, TAPR Penelope. All with latest firmware.<span
class="Apple-style-span" style="color: rgb(42, 42, 42);
font-family: Verdana, Tahoma, Arial, sans-serif; font-size: 15px;
font-style: normal; font-variant: normal; font-weight: normal;
letter-spacing: normal; line-height: normal; orphans: 2;
text-align: left; text-indent: 0px; text-transform: none;
white-space: normal; widows: 2; word-spacing: 0px;
-webkit-text-decorations-in-effect: none;
-webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;
background-color: rgb(250, 252, 255); "></span><br>
* PowerSDR v1.19.3.4 baseSVN 3444 (W5WC -9/11/11)<br>
* P4 3GHz, 1GB RAM<br>
* shrinked down Windows XP PRO<br>
* com0com <span class="Apple-style-span" style="color: rgb(0, 0,
0); font-family: 'Times New Roman'; font-style: normal;
font-variant: normal; font-weight: normal; letter-spacing: normal;
line-height: normal; orphans: 2; text-align: -webkit-auto;
text-indent: 0px; text-transform: none; white-space: normal;
widows: 2; word-spacing: 0px; -webkit-text-decorations-in-effect:
none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width:
0px; font-size: medium; ">virtual serial ports<br>
* ESI Audiotechnik virtual audio cables which came along with ESI
@Juli soundcard.</span><span class="Apple-style-span"
style="color: rgb(71, 79, 98); font-family: Arial, Helvetica;
font-size: 13px; font-style: normal; font-variant: normal;
font-weight: normal; letter-spacing: normal; line-height: 15px;
orphans: 2; text-align: -webkit-auto; text-indent: 0px;
text-transform: none; white-space: normal; widows: 2;
word-spacing: 0px; -webkit-text-decorations-in-effect: none;
-webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255); "></span><br>
* Home made T/R switch, drived by Penelope.<br>
<br>
All is running fine. DPC latency is around 70 <span
class="Apple-style-span" style="color: rgb(34, 34, 34);
font-family: arial, sans-serif; font-style: normal; font-variant:
normal; font-weight: normal; letter-spacing: normal; line-height:
16px; orphans: 2; text-align: -webkit-auto; text-indent: 0px;
text-transform: none; white-space: normal; widows: 2;
word-spacing: 0px; -webkit-text-decorations-in-effect: none;
-webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255); font-size: small; ">µs all
the time when all neccesary things are running<br>
which seems very good for real-time streaming.<br>
<br>
<br>
As digimde fan I hope we can resolve this, hi.<br>
<br>
<br>
<br>
Regards,<br>
Riho, ES7AAZ.<br>
</span><br>
<br>
<br>
<br>
<br>
<br>
<br>
</body>
</html>