Solar Activity & HF Propagation

Paul Harden NA5N is well known in QRP circles. At FDIM (Four Days In May) 2005 he made a presentation on Solar Activity and HF Propagation which has become a classic.

To understand more about the the effects of solar activity on HF propagation download his article - here

QRP Quarterly

APR 2023

QRP Quarterly - APR 2024
 
Table of Contents - And More! 
 

Aluminum Chassis Construction AA8V
More Metalworking Ideas K9AY
Lithium Battery Safe WØRW
QRPp Pixie Power N9EGT
Is an Antenna Tuner? K4OCE
A Two-Tone Test Generator VU2ESE
Using Impedance Measurements K9AY
The FX-4CR Transceiver W8TEE
Bear Interrupts DX Operation! WØRW
The CW Renaissance K4SWL
JNCRadio M-104 Portable Antenna VE3IPS

And much much more!

 

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