[Skimmertalk] Skimmer and aggregator question(s)
kazeringue at aol.com
Thu May 10 15:22:15 PDT 2012
Hi folks. First, apologies if this double posts to the list.
Finally laid hands on a couple of softrock kits, and I am finally
getting a chance to play with skimmer and SDR. Way fun. I expected the
surface mount parts to be difficult when building the first Softrock.
Never tried any surface mount project before. Wrong. Turns out reading
the numbers to sort out the capacitors was the hard part. Bright lights
and magnification, and even my 17yo son had trouble(and he has 20/13
But enough digression.
Bought skimmer license, have skimmer running on 40m and 80m. 40m
calibrated(I think), 80m still pending.
I'm not clear on the relationship between the skimmers and aggregator.
If I run a skimmer session for each softrock, do I run aggregator for
My initial expectation was to run the skimmer sessions for each
Softrock, use wintelnetx to put the spots together, and use aggregator
to ship the spots to the RBN from the wintelnetx window/port used to
collect the spots.
I found the documents N4ZR has written to be "spot on", but I have not
seen/found any that describe this relationship. (I probably did not
look hard enough....???..hints appreciated)
Is it necessary/required to open the port to the skimmer/aggregator to
the world_wide_interwebz? I would really rather not do that at this point.
With two skimmers running on mostly dead bands, a dual core Pentium D
(Dell Optiplex 745) ticks off about 15-20% CPU when the skimmers are
minimized. The 80m softrock skimmer is at 48khz on the on-boad
Soundmax. The 40m softrock skimmer is at 96khz on an ASUS Xonar DG.
The Xonar DG seems to be a fantastic value for a sound card. Also
available as PCI-E, Xonar DGX. Its main limitation over the more
expensive siblings in the Xonar line seems to be its 96khz max sample
rate, vs 192khz for big brother.
73 de w4kaz
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