G5RV verses Superloop 80 Many operators with small lots, a G5RV is what can fit for the 80 and 40 meter bands. The G5RV is 102 feet long and has a 34 foot section of twinlead followed by coax into the shack, possibly with some sort of RF choke on the coax. The ends are
An easy-to-build general purpose receive only small wire loop antenna As much as I like my coax loops, I am also quite satisfied with small loops made with wire or tubing. They have the same or better performance as the coax loops, but might require that you invest in a balun to help maintain directivity
RTTY Tutorial This document was originally posted by K4WW on rttyinfo.net but this domain has expired since some months at time writing. I’ve archived a copy that I believe could be usefull for beginners. This is not intended to be an “etched in stone” indication of how to operate a RTTY contest, so please don’t
A Simple Telegraph Key by Arthur R. Nilson, McGraw-Hill, New York, 1942 A professional looking radio key can be made by the beginner or experimenter at a cost of a few cents for parts. This key is very satisfactory in every respect, as will be seen from Fig. 15. It is made of a short
During last years, waiting to obtain my licence I’ve spent a lot of my “radio-times” listening to broadcast stations and also trying to intercept unknown and strange signals. Monitoring “extra” bands for unknown signals, still give me that taste of misterious that fascinated me so much in past years. Although in italy the “utility station
HamGrids will allow you to perform calculations with the popular Maidenhead Grid Square system. This grid system is used worldwide by amateur radio operators for many aspects of ham radio. Currently in version 0.5 Beta, with HamGrids, you can Convert Latitude and Longitude into a Grid Square, Convert a Grid Square into Latitude and Longitude,
Yet another interesting table I’ve recetly found on the net and tha I believe it could be usefull expecially to travellers. The followind table represents, the ham radio band plans for the 3 IARU regions.
This is an interesting quagi antenna plan. Total Boom Lenght is 3 m.
Newsgroups: rec.radio.shortwave Subject: Grounding is key to good reception, was: Experience w/NRD-535 In your recent post you advised that coax should be grounded at two sites, first at the antenna and then just before entering the house. Is there an advantage in grounding at more than these sites? With grounds the most common experience is