[RFI] Digital TV Box Generates 121.5MHz Signal

Stu Benner w3stu at myactv.net
Fri Jan 20 07:24:59 EST 2006


I would be surprised to learn that this doesn't happen more often. The
sample clock used in a large number of video CODECs is 13.5 MHz. 121.5 MHz
is the 9th harmonic of that frequency, therefore, there's quite a bit of
energy generated within such boxes at 121.5 MHz.

Stu
W3STU

-----Original Message-----
From: rfi-bounces at contesting.com [mailto:rfi-bounces at contesting.com] On
Behalf Of kd4e
Sent: Thursday, January 19, 2006 10:39 AM
To: Rfi at Contesting. Com; tvi-rfi-emi-request at mailman.qth.net
Subject: [RFI] Digital TV Box Generates 121.5MHz Signal


It is comical that they are so surprised that
these things generate RF!

73, kd4e

http://news.scotsman.com/latest.cfm?id=69662006





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