Author: Johnson Francis

Here is an update on the progress with 80/20m loaded coil dipole antenna. Brought down the antenna and measured both sides in order to correct any inequality which

M0UKD gives detailed instructions for construction of the Carolina Windom antenna including the needed line isolator and 4:1 balun. Unlike the usual designs for these, he is using

Earlier my loaded coil 80/20m inverted V dipole antenna had tuned to 30m when I had forgotten to tie the lower ends to the supports in the garden.

I had been trying to tune my 80/20m loaded coil dipole antenna for the past few days. 20m band was workable in last day’s tuning though 80m band

VRLA or Valve Regulated Lead Acid batteries are also known as Sealed Lead Acid Battery and Sealed Maintenance Free (SMF). Certain precautions are needed for VRLA batteries, which

I have been trying to get spotted on Reverse Beacon Network for quite some time! RBN is an internet based network of dedicated wide band receivers globally, which

I had used the popular operational amplifier integrated circuit 741C long back, but did not know much about operational amplifiers. If I remember correctly, it was the first

Noise is an important problem faced by amateur radio operators, especially on the high frequency bands. Noise level is always on the increase in the urban areas with

I was told by a VU ham friend that in order to experiment with loaded coil dipole antennas, it is essential to have an LCR meter. It was

Couple of days back I had posted about USB-C and USB-C PD (Power Delivery) cables and mentioned that though they have 24 pin connectors, they have only 16