CQ Amateur Radio

“Green” Power for QRPp

Just about everything these days operates on batteries, from the computer in your pocket to electric vehicles. But disposing of all those batteries creates a big environmental problem. AH6CY offers a “green” approach to powering a very low-power transceiver … using fruits and vegetables to generate electricity. (And no, this is not an April fool article; that’s why we waited until now to publish it!)

No, the lowercase “p” in QRPp doesn’t stand for potato, it indicates the extreme lower region of QRP in which transmitters typically radiate 1 watt or less. QRPp transmitters are measured in milliwatts.

The experiment I recount here started as a joke. Members of our QRP club were comparing the various batteries for our outdoor portable operations. One OM mentioned, tongue in cheek, that he powered his radio with a potato battery. He really doesn’t, but he has the largest collection of batteries in our group. Many of us fondly remember playing with potatoes or lemons to make a battery in our elementary school days. I decided to re-live that fun and at the same

You’re reading a preview, subscribe to read more.

More from CQ Amateur Radio

CQ Amateur Radio10 min read
DXpedition To The Heart Of Rome
1A0C Sovereign Military Order of Malta - Where Extraterritoriality Makes the Difference For a week this past summer, hams around the world were treated to the first operation in four years from the Sovereign Military Order of Malta, an extraterritori
CQ Amateur Radio5 min read
A (Much) Less Expensive Ultrasonic Line Arc Detector
This article describes the use of a satellite TV dish along with a circuit described in an earlier article in QST that can be used to locate arcing on power poles. The original article can be found in the QST archives (April 2006, “A Home-made Ultras
CQ Amateur Radio13 min read
Radio Renaissance: A Retirement Story
Here I am, it is late afternoon and I’m sitting in the backyard with Paula, my bride of 53 years. We are sipping wine and enjoying the end of the day. This is a regular experience for us now. We chat and relax around what I like to call the “eternal

Related