Topband: Furnace RFI

[Bill Stewart]

Mark, we have a York gas pack (a/c and propane heat)(abt 4 yrs old).
When in the a/c mode and the outside exhaust fan comes on, I hear a spurious signal
every 25kc or so from lf thru six meters. There may be a way to fix it...
some kind of filtering maybe, but I don't want to mess with it. GL on
finding something quiet....73 de Bill K4JYS
PS...one helpful thing is to keep the t-stat up high so it won't run as much.
Saves on the electric bill too.....hi.

----- Original Message -----
From: "lmlangenfeld" <lmlangenfeld at tds.net>
To: "topband" <topband at contesting.com>
Sent: Thursday, October 3, 2019 5:22:31 PM
Subject: Topband: Furnace RFI

We are in the market for a new high-efficiency furnace, and I note that many (if not most) of the current models use variable-speed DC blower motors.  I am concerned about the potential for RFI from the speed controllers, and wonder if any list members have any recommendations or recent experience (good or bad) with such units.Tnx es 73,Mark -- WA9ETWSent from my U.S. Cellular® Smartphone
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