The Ramblings Of G7SYW
The square halo, or squalo, for 6m originally designed by John (KG4OSA) and published by Jan (PA3EGH) is a square, folded dipole that can be easily constructed from some copper tubing.
The basic design of the antenna is a fairly simple folded dipole.
In simple terms, a serial port interface translates signals from a computer serial port to be used to place a transceiver into transmit or send CW (morse code) characters.
Here you can find a laymans guide to the various geomagnetic conditions which affect radio propagation.
This article was originally written by Paul Harden, NA5N.
Like almost every other radio ham, I use a computer for log keeping, digital modes and other tasks. For the majority of computing processes in the shack I employ the use of a home built Windows PC. The hardware was originally based around an ECS GF8100vm-m5 motherboard with 4GB RAM and a 500GB hard drive.
This machine started showing a problem with one of the SATA channels. At very infrequent random periods data would get corrupted – not good. Therefore, I replaced the motherboard before I lost any crucial data. An Asus M5A78L-M is now installed as the replacement for the ECS motherboard.
Anderson PowerPole connectors have a unique genderless design, meaning there is no male to female requirement. Therefore, when assembled in pairs this design makes it impossible to insert them the wrong way round. The design also allows any pair to mate with any other pair.
PowerPole connectors are available in different current ratings and colours. The most common connectors used in amateur radio are the red and black connectors with a current rating of 35 Amps.
Some careful considerations are required to install a mobile transceiver into a vehicle. Below is a list of a few things you should think about before simply throwing the radio into the vehicle.
Possibly the most important consideration is the power source. A quick glance around inside the car and there is the most convenient power source.