Yearly Archives: 2016

QRPWorks Presentation 8-1-2016

Shel KF0UR gave us a very informative discussion of QRP Portable. Here are links from his presentation.
Find QRPWorks at
Find the batteries at
Find the KX3 at

Here is a message from Shel:

From: “Shel KF0UR” <>
To: “DAVID L GIVAN” <>, “Don Yowell KI0IS” <>
Sent: Thursday, August 4, 2016 3:26:35 PM
Subject: RE: August Garden of the Gods A.R.C. luncheon

Hi David, Don,

Thanks for inviting me to present at last Monday’s meeting. It was good to see some old friends and meet some new ones. Here are the Web links I promised:

  • My QRPworks products:
  • Bioenno Power batteries:

Since I’m local, there are no shipping charges for our QRPworks products. The Web Store automatically adds it, but I’ll refund them.

Tnx & 73,
Shel KF0UR

Noise From Grow light Ballasts

Noise From Grow light Ballasts

In the last few years we are seeing more Radio Frequency Interference (RFI) caused by grow light ballasts.

Two years ago a fellow Amateur Radio operator had a grow light operation move into his neighborhood. The grow light ballast caused RFI that covered the entire HF Band and was 40db/S9 on 40 meters.

Talking to the grower was futile and the problem continued. Mike Gruber with the Amateur Radio Relay League offered his assistance and contacted the FCC on behalf of the Amateur Radio operator. After the grower received a second letter from the FCC, the grower moved his growing operation to another neighborhood. The process took almost a year to accomplish.

Since then a Marijuana Task Force has been created. Colorado Springs City Councilman Larry Bagley is the lead. Councilman Bagley is interested in hearing about your RFI issues in the Amateur Radio community.

If you are currently having or have had in the past, RFI issues caused by grow light ballasts please email Councilman Bagley with the details. His information is:

Councilman Larry Bagley
Marijuana Task Force