Every radio frequency has a given length (wavelength).
Some careful considerations are required to install a mobile transceiver into a vehicle. This example shows how I installed my Yaesu FT-7900 dual band radio.
Kenwood TS-850 Memory Loss
Because of the age of the design and components used, the circuit uses a RAM chip. Using RAM has a drawback in that it requires power to retain information. This power is supplied from a small memory backup battery. Modern designs use NVRAM (Non-Volatile RAM) which retain the information without requiring power.
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.
Or how radio waves travel through the air…
As radio waves travel through the air away from the transmitter, the path they can take falls into five different types with each type having it’s own particular characteristics and effects on the radio signal. Each type is a method of propagation. All the types of propagation can be affected by geomagnetic events created by sunspots, solar flares and solar winds.
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.
Preventing unwanted RF radiation
One of the problems that can occur with simple wire dipoles is that of the feeder (in this case coaxial cable) radiating some of the RF energy which can lead to interference and other problems.
Recently my FT-7800 decided to act strange. It would turn on and receive fine, but as soon as the PTT was pressed it would shut down.