I've not found a s/mode wall wart yet that was adequately quiet, RF
wise.
Most are quite 'nasty'.
Same goes for a lot of laptop AC adaptors/chargers, as well as
quite a few mains driven battery chargers for camcorder batteries and
the like.
ZL3FJ
----- Original Message -----
From: "Gw3UEP" <[email protected]>
To: <[email protected]>
Sent: Sunday, June 24, 2007 12:05 AM
Subject: LF: 500; RFI source captured...
Might be of general interest...
Severe MW pulses with mains PRF, common-mode via BT-lines throughout
village [300yds from MF antenna].
Two Belkin Wireless Routers powered-up, but no Sync LED & no B/B
connection [std ADSL modem ok - no RFI].
RFI-detector FSD near BT line & dc-lead from s/mode wall-wart
[12V/1.25A model: DSA-0151A-12 K].
Replaced with generic type, Sync ok, B/B ok.
BT-line noise now low, similar to std ADSL "Frog" modem.
Nasty little wart now in safe-custody - time for a pint!
Rog.
--------------------------------------------------------------------------------
No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.5.472 / Virus Database: 269.9.4/860 - Release Date:
21/06/2007 17:53
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