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<div data-externalstyle="false" dir="ltr" style="font-family: 'Calibri', 'Segoe UI', 'Meiryo', 'Microsoft YaHei UI', 'Microsoft JhengHei UI', 'Malgun Gothic', 'sans-serif';font-size:12pt;"><div><div>Hi Steve,</div><div><br></div><div>I guess that if Herms Lite is firmware/software compatible with it’s big brother. I t can also be used as a VNA? At $150.00 for the hardware makes it a cheap VNA. Can Hermes Lite be used as a VNA?</div><div><br></div><div>Thanks,</div><div><br></div><div>Roderick Wall, vk3yc.</div><br></div><div data-signatureblock="true"><div><font face=" 'Calibri', 'Segoe UI', 'Meiryo', 'Microsoft YaHei UI', 'Microsoft JhengHei UI', 'Malgun Gothic', 'sans-serif'" style='line-height: 15pt; letter-spacing: 0.02em; font-family: "Calibri", "Segoe UI", "Meiryo", "Microsoft YaHei UI", "Microsoft JhengHei UI", "Malgun Gothic", "sans-serif"; font-size: 12pt;'><b>From:</b> <a href="mailto:steve@softerhardware.com" target="_parent">Steve Haynal</a><br><b>Sent:</b> Tuesday, 15 April, 2014 2:02 PM<br><b>To:</b> <a href="mailto:hpsdr@openhpsdr.org" target="_parent">hpsdr@openhpsdr.org</a></font></div></div><div><br></div><div dir=""><div dir="ltr"><div>Hello All,</div><div><br></div><div>I've read the comments and questions on the Hermes Lite and tried to capture my responses below.</div><div><br></div><div>* The jumper on the FPGA board selects whether the FPGA board is powered through the 80-pin connector or USB. This jumpered signal does run to the daughter board and in the next versionn should be controlled by the daughter board. There is a github issue recorded for this.</div>
<div><br></div><div>* The prototype has extra jumpers to provide flexibility to try different things. The next version of the PCB can reduce the number of jumpers.</div><div><br></div><div>* The power output is theoretically 100 mW, and even 200 mW if you tolerate some distortion. If have tested up to 50 mW as shown in the WSPR spots. I couldn't go up to 100 mW because I did not have a binocular core of the right size on hand to get the proper turns ratio. Eventually, I'd like to see a small amp integrated to make this more like a RXTX Ensemble.</div>
<div><br></div><div>* I agree that this project is not ready for general use as it is. Only the bravest should attempt to build the current version! I put it out there to see what would happen. Who knows what others can and will do... I have tried to capture everything I can think of that needs to be fixed/improved in the online github project issues list.</div>
<div><br></div><div>* There are unused pins from the FPGA that connect to the unused PCIE-like connector. These can be repurposed to provide some I/O and control in a next version. </div><div><br></div><div>* Thanks to Rob, KL7NA, for keeping the demo going.</div>
<div><br></div><div>73,</div><div><br></div><div>Steve </div><div>KF7O</div><div><br></div></div>
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