Indicative is a radio code name cosisting of two letters according to local level code of radio amateur, followed by a regional number, then a code between 1 to 3 characters, to identify the radio owner
Each letter is spelled using the next code:
A=Alfa
B=Beta
C=Charlie
D=Delta
E=Echo
F=Foxtrot
G=Golf
H=Hotel
I=India
J=Juliet
K=Kilo
L=Lima
M=Mike
N=November
O=Oscar
P=Papa
Q=Quebec
R=Romeo
S=Sierra
T=Tango
U=Uniform
V=Victor
W=Whiskey
X=X-Ray
Y=Yankee
Z=Zulu

*Can't use a repeater unless having a license, or the ham radio band;  you may use a home frequency if allowed by the owner of, or pirate frequencies
espect is a rule when talking over radio
*People may tell not to talk or even be rude if one talks in a ham radio frequency without license
*Not by being a pirate frequency is a bad thing
*One may listen to fire-fighter or quake or tsunami or other emergency-focused local/regional frequencies
*Rx means reception, Tx transmision:  When one wants to listen one puts Rx only
*Subtone may be used to talk;  and offsets too, may be like for example +600 or -something, and might be configurable in the radio
*If one is in the street with the radio, and there's a robbery near, cops may confiscate your radio and call you to the public prosecutor office;  it is very important to carry a ham radio license always everywhere one may use one;  otherwise one may be asked by cops for a license if one is with a radio outside
*The ham radio idea is helping, one never ends learning, there's much information, many kinds of radios, and stuff related to
*A crystal radio receiver, also a called crystal set, is a minimalistic kind of radio that may make a good DYI and workshop project, or family activity:  It is a radio that uses some electronic component that may be scrapped from other ones (Beware that even stuff unused over decades may still hold power on its capacitors, or even self-recharge by a phenomenon called dialectric absorption, and in PCB with many high voltage capacitors, as CRT Tvs and PC monitors, or a power supply, it may dispose charge with 50000 volts;  it is extremely dangerous to have around open, even if one takes measures;  there's also the danger in CRT TVs and PC monitors of the fragile part behind the screen, it has vacuum inside, and may implode if pressed, releasing many tiny floating pieces of glass and stuff fast around the surrounding:  It is a bad idea to open a CRT TV and a PC monitor) and can be bought in electronic stores
*One may construct an antenna, one may even use a fence or barbed wire as an antenna;  an antenna may be constructed in basis to megahertz a radio may use;  they must be measured to get a Standing Wave Ratio;  its something like how much the radio transmits must be what the antenna receives, and the antenna transmits outwards;  that's why it must be well calibrated, made using specific lengths:  One may not use any antenna in any radio, or it may burn the radio
*The International Space Station may be heard with a radio when it is orbiting near;  one may use a phone app called ISSDetector to be notified about:  It may be visible in the sky, show red and blue lights, and move vertically
*Having a ham radio license, one may use a repeater to talk;  one may find a list of repeaters nearby with a phone app called Repeater Book
*Ham radio users maybe with high enough license to, may transmit using moonbounce in a day with certain charasteristic, it makes signal bounce on the moon and back to Earth, and may be used to communicate between countries:  Moon is a natural satelitte;  may require an equip with certain amount of watts, a directional antenna pointing to the moon
*One may get to know many many people, involving in ham radio clubs, participating in some way
*Q code is another code ham radio users may speak using, specially a subset of;  they may speak the code as if it was itself a word:  It may formally mean a question or informally mean a word