What does SWL mean in INTERNATIONAL

SWLs typically use receivers, often amateur radios, to tune in and listen to available channels. These may be tuned manually or using a computer program. Some radios even feature pre-set frequencies which can be easily selected for different services such as digital broadcasts, amateur radio operations, etc.

The most obvious difference is the frequency on which they are transmitted. Commercial broadcasts typically use AM (amplitude modulation) and FM (frequency modulation) between 87.5 MHz and 108 MHz, while shortwave radio broadcasts fall in the bands between 3 MHz to 30 MHz.

Amateur Radio Operators (HAMs) are licensed personnel who are allowed by their country's regulatory authority to transmit signals across certain frequencies for the purposes of experimentation or communication with fellow HAM operators around the world. A HAM operator must obtain a license and abide by regulations regarding frequency usage in order to operate legally.

Logging is the process of recording data about radio transmissions for further analysis or reference. This includes information such as frequency, power output, date & time received/transmitted, station ID/name and more. A logbook of all transmissions can be used as evidence that a particular channel was operating at a given time period or that contact was made with another HAM operator across large distances, etc.

Yes it is possible for an experienced listener to pick up two-way conversations by carefully tuning into signals from both the transmitting and receiving stations simultaneously on same frequency or separate frequencies within close proximity of one another depending on propagation conditions. It takes some practice but can provide interesting listening experiences for those willing to put in some effort!

An ideal set up would include a good quality receiver along with an antenna specifically designed for shortwave listening. For those just starting out with this hobby it's best not too go overboard with purchasing equipment initially rather aim for something that allows you explore the hobby without breaking the bank!

Yes there are certain safety measures recommended when using any kind of electrical equipment including SWL gear such as unplugging from mains supply when not in use, avoiding water ingress around connectors etc...It's also important not to overload your device by pushing too much power through at once; check your user manual before doing so!

When trying to identify unknown signals there are several steps one can take such as plotting them on spectrum analysers/maps if available and double checking any assumptions made against known databases or call signs recorded previously via logging activities for accuracy and reliability during identification process.