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Re: [IRCA] The Bad News



Thank you, Brian. I also don't do radio long enough for the battery to run out!

Anyways, I think it may be a ground issue. Grounding the chassis of the FDM-S2 receiver noticeably reduced the noise.

Stan, WA1LOU


On 6/13/2016 3:16 PM, Brian Rachford wrote:
Stan,

Although I don't use an Elad, I've had similar problems with my MacBook Pro
and I haven't figured out a good solution either.  I generally don't DX
live long enough for the battery to run out.  When I do an unattended
recording, I turn off demodulation, turn off the FFT/waterfall, and turn
off the screen.  I can get about 7 hours that way.

Brian Rachford - Prescott, AZ
azswdxing@xxxxxxxxx
http://azswdxing.wordpress.com/

On Mon, Jun 13, 2016 at 9:06 AM, Stan Horzepa <stanzepa@xxxxxxxxxxxxx>
wrote:

I bought an ELAD FDM-S2 SDR receiver and I am using it with my MacBook Pro
under Windows 10 and Parallels.

I am very happy with my new radio, but there is a problem: interference
from the MacBook Pro battery charger/power supply. The interference is so
strong that only the strongest AM stations are above the noise.

The cable between the charger and the computer is the problem because the
noise disappears completely when I disconnect the cable from the computer
even though the charger is still powered.

I installed ferrite cable clips on the cable, but that made no difference.

I wrapped the cable 20 times around a toroid ferrite core, but that made
no difference.

One solution that works is to use the ELAD-MacBook Pro combo without the
battery charger. This gives me a few hours operating without the
interference, but sooner or later, the battery will need to be recharged.

Anyone have any other solutions?

73,

Stan, WA1LOU


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

Be sure to register now for the Joint DX Convention
Kansas City, September 9 to 11.  Hotel space is filling up.
Registration info:
http://www.nrcdxas.org


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