<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>I have a few questions concerning Mercury:</div><div><br></div><div><ul class="MailOutline"><li>Is there any easy way, without a lot of test equipment to determine where the noise floor should be positioned on the Panadapter display All of the software available provides a "calibration" adjustment, how do you determine where to set that adjustment?</li><li>Normal receiver data (i.e. ep6 data):</li><ul><li>What will be the expected range of values? I can see that it is made up of 24-bit samples. Is the data in some fixed relationship to the input signal, i.e. a specific input values generates a specific data value or is it somehow variable?</li></ul><li>Wide Bandscope data from Mercury (i.e. ep4 data):</li><ul><li>How is the Wide Bandscope data generated, I'm assuming that it is a decimated version of the Normal receiver data.</li><li>What will be the expected range of values? I can see that it is made up of 16-bit samples. Is the data in some fixed relationship to the input signal, i.e. a specific input values generates a specific data value or is it somehow variable? When I look at the frequency-domain signal on my bandscope, it seems that the broadcast band stuff is huge but most of the signals at higher frequencies are at much lower levels.</li><li>It appears that when you tell Mercury not to send bandscope data (in the StartStop Packet, 0x01 vs 0x03) I still see incoming ep4 packets but the data in them is a fixed value. Is that correct or am I doing something wrong? </li></ul></ul></div><div><br></div>I've been following this list for some time and have found it very helpful for learning more about openHPSDR. Thanks for all the good information.<div><br><div apple-content-edited="true">
<span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div>Doug Adams - K3TZR</div><div><a href="mailto:douglas.adams@me.com">douglas.adams@me.com</a></div><div><br></div></div><br></div></span><br class="Apple-interchange-newline"></span><br class="Apple-interchange-newline">
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