[Soekris] Soekris Net2521 Noise: Follow-Up

Rick Compton r_c_compton at yahoo.com
Fri Jul 19 19:24:35 UTC 2002

Thank you for all of your replies.

The higher noise in Slot 0 is also present when only one card is inserted.

When I added a pig-tail with external antenna to the Orinoco cards the noise
level plunged to around -98dBm.

My conclusion: Slot one is picking up noise from the Soekris board and that
this noise can be eliminated through the use of an external antenna.

-----Original Message-----
From: soekris-tech-admin at lists.soekris.com
[mailto:soekris-tech-admin at lists.soekris.com]On Behalf Of Rick Compton
Sent: Wednesday, July 17, 2002 2:46 PM
To: NoCat; Soekris-Tech
Subject: [Soekris] Soekris Net2521 Noise

I have a Soekris Net2521 populated with two Orinoco Cards in the two PCMCIA

I have noticed that the noise level in PCMCIA Slot 0 appears to be approx
16dB worse than for Slot 1.

I am seeing -73dBm on Slot 0 and -89dBm on Slot 1 for the two Orinoco cards.
If I swap the cards I get the same readings in Slot 0 and Slot 1 so it is
not a card defect.

The Slot 0 card sits in close proximity to some chips and caps on the board?
Has anybody else observed this, and if so is there a fix?

Soekris Engineering, technical discussion mailing list
[un]subscribe: http://lists.soekris.com/mailman/listinfo/soekris-tech

More information about the Soekris-tech mailing list