[IRCA] RF-Space SDR-14

["Craig Healy" <bubba@xxxxxxxxxxxxxxxxxxxx>]

Well, I've had a little bit of time to work with the RFSpace SDR-14.  I am
pleased.  The graphic picture makes things much easier to deal with,
especially since I'm a little bit hard of hearing.  Some comments...

*  The included low pass filter probably could use some help.  I'm not far
from three TV transmitters and a couple of 50kw FMs.  I did notice some
interference that I could trace to them.  Adding a separate outboard Drake
ham-type low pass filter did make some improvement.  Next thing I need to do
is get one with a lower frequency range.  The one I have is a 52MHz cutoff
meant to include the 6m ham band.  A 30MHz cutoff would have been better.
Ideally I would make a 2MHz LPF.

*  The 30MHz whole-band picture is amazing for figuring the current MUF.  I
can see myself leaving that up even when I'm not using the radio, just as a
reference.

*  The radio benefits from a tuneable preselector.  I have a couple of
home-brew units.  I find the tuning can be very accurate when you can see
the results.  I need to build one that covers the beacon band.

*  While the outboard Griffin knob would be interesting, I don't think I'll
need it.  The wheel on the mouse does the same thing and I'm running out of
USB ports.

*  This has more than enough gain for BCB work.  Most of the time I have run
the RF and IF gains down a couple of clicks.

I will work with the recording feature at some point.  I do want to bring
this with me to a few places and record a bunch for later listening.  Gotta
build a laptop for that..

Craig Healy
Providence, RI

_______________________________________________
IRCA mailing list
IRCA@xxxxxxxxxxxxxxxx
http://montreal.kotalampi.com/mailman/listinfo/irca

Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers

For more information: http://www.ircaonline.org

To Post a message: irca@xxxxxxxxxxxxxxxx