[hpsdr] Hermes and EB104 Field Day

Gregory Ratcliff nz8r at att.net
Mon Jun 30 06:58:52 PDT 2014


Has anyone performed a temperature study of the board and or enclosure?
This weekend ambient was 98f/40c and much higher in the sun.  Surface temp on the table was 118f. 

Greg

Sent from my iPhone

> On Jun 30, 2014, at 9:11 AM, "Helmut Oeller" <dc6ny at gmx.de> wrote:
> 
> ***** High Performance Software Defined Radio Discussion List *****
> 
> Hi Tim,
> 
> Good to hear that you have had a successful FD weekend with the HPSDR stuff.
> Don't worry about heat dissipation of Hermes, specially of ADC and FPGA. The
> board is well designed and absolutely conform with the ratings of the chip
> maker.
> 
> Thanks to our top developers and presenters we have a great weekend at the
> Ham Radio Friedrichshafen too. All attendees enjoyed the exciting HPSDR
> workshop. Recording material looks promising, though I'll hopefully put a
> compressed copy of the videos on hamsdr.com soon.
> 
> 73, Helmut, DC6NY
> 
> -----Ursprüngliche Nachricht-----
> Von: Hpsdr [mailto:hpsdr-bounces at lists.openhpsdr.org] Im Auftrag von Tim
> ORourke
> Gesendet: Montag, 30. Juni 2014 14:39
> An: Sid Boyce; hpsdr at openhpsdr.org
> Betreff: [hpsdr] Hermes and EB104 Field Day
> 
> ***** High Performance Software Defined Radio Discussion List *****
> 
> Used the above combination in full attack mode all weekend.
> Never a glitch!
> Ran CW for 26 hours straight and never even warmed up the heat sink!
> I did dial back to 150W as that was max for field day.
> Every year prior I always had a SW/FW or hardware issue, not this year.
> Hermes case does get warm but does not seem to be an issue.
> Finally a great portable FD and JOTA SDR station I can count on!!
> Hermes, Eb104 300W amp, N3FJP logger, DDutil, VSP, VAC, MP40, Winkey3, all
> played nice together!!!
> Tim 
> 
> Tim O'Rourke 
> W4YN at ARRL.Net
> Low Power Amateur Radio Rocks 
> Member of Flying Pigs,ARCI,GQRP,RSGB,ARRL Life Member
> NHRA Life Member
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