WA2ZKD

I don't like touching a soldering iron to my kiwi or BB so got some DC blocks from eBay. But, I'll DIY my next ones. A 15 or 18 pF series cap would work. I don't think the kiwi cares about antenna sensing, so that simple cap should suffice.

• combined with a virtual audio cable something like https://www.qsl.net/dl4yhf/spectra1.html provides a lot of tool.
  
• https://www.audacityteam.org/ is another good tool
  
• and of course there's something better that I can't think of!! :-)
  

all systems running now... 2 unloaded kiwi/BBAI run 31 deg. and the 2 with 14 channels of continuous kiwiclient run 34 deg, in my cool basement

Project is done mechanically, just needed to update the firmware in everything, configure and hook up antennas.
Pix may be viewed at https://www.dropbox.com/sh/x7tt18loi84bpg3/AADLeN3iU6g7ZoPi520opbQpa?dl=0

Almost ready... removed paper ducts and with 4X 14 ch installed max temp at 100% CPU is 44 deg C, a 19C rise

Since I've found an adequate cooling scheme, see: http://forum.kiwisdr.com/discussion/1939/alternate-cooling-method#latest

I have gone on to finalize my "kiwi cluster", 4ea BBAI based units combined with a common fan.



I went this route to reduce fan noise. The box on the back is a plenum for a single 90 X 90 mm AC fan. I used a best quality ball bearing fan.

Initially (see other thread) I had some ducting in the inlet side of the kiwi enclosure. I found today that was no longer needed, I stay below 44C, only 19 deg above room ambient.

Some of you may say "wow, that's a lot of dollars"... I can duplicate that for $1400 or $25/channel (there's the potential for 56 channels there). Better performance and less money that dongles!!

Almost ready... removed paper ducts and with 4X 14 ch installed max temp at 100% CPU is 44 deg C, a 19C rise

The evolving kiwi cluster

The evolving kiwi cluster

The evolving kiwi cluster