QRZ Cuba
Public amateur-radio directory and community reference for Cuban operators.
RADIOSPACE
A modern amateur radio space for operators, experimentation, DX, digital modes and on-air community. Built around the spirit of radio communication, exploration and technical curiosity.
Explore the spectrum. Work the world.
HF / Long Distance
DX • SSB • CW
VHF / UHF
Local • Repeaters • Satellites
Digital Modes
FT8 • JS8 • APRS
Every contact starts with a signal
From a quiet band opening to a long-distance DX contact, every QSO begins
by listening, understanding the conditions and finding the right moment
to transmit.
RadioSpace is built around that process: experimentation, good operating
practice and the satisfaction of making a real contact over the air.
Explore the bands ->
Radio is more than a frequency
It combines technology, propagation, antennas and operating skill into one worldwide conversation.
RADIOSPACE REFERENCES
Listen. Tune. Call.
Build the station, understand the equipment and learn how the spectrum behaves. Amateur radio turns technical knowledge into communication.
The band is always changing
Solar conditions, time of day, frequency and antenna choice can turn a quiet band into a path across the world.
HF propagation and DX
Repeaters, satellites and local nets
Digital modes and weak-signal work
Meet the RadioSpace
station network
RadioSpace brings together personal stations, experiments and amateur-radio projects under one technical identity.
KQ4NAT
RadioSpace operator station focused on amateur radio, experimentation and DX.
CO8PHG
RadioSpace station identity for on-air activity, local contacts and technical projects.
QRZ Cuba
Public amateur-radio directory and community reference for Cuban operators.
GOOD OPERATING
Operating notes for every contact
Listen before you transmit
Check the frequency, listen for existing traffic and understand the rhythm of the band before calling.
Call clearly and identify
Use your callsign, keep exchanges clear and concise, and make every contact easy to understand.
Respect the band plan
Operate inside your privileges, follow accepted band practices and leave room for other stations.
Radio connects beyond distance
One station, one signal, one contact at a time.
Explore the amateur spectrum
The same station can move from worldwide HF contacts to local VHF/UHF activity and modern digital communication.
3–30
MHzLong-distance communication shaped by propagation, antennas and operating conditions.
Common activity
30–1300
MHzLocal communication, repeaters, satellites and line-of-sight experimentation.
Common activity
FT8
+ modes
Weak-signal and keyboard modes combine radio, computers and precise timing.
Common activity
Looking for a station?
QRZ Cuba ->
What amateur radio means to us
RadioSpace is built around curiosity, technical experimentation, respectful operating and the excitement of making a real contact.
“A weak signal rising out of the noise can connect two stations separated by an ocean.”
KQ4NAT
“DX rewards patience, good listening and an understanding of propagation.”
CO8PHG
“Every antenna, feed line and radio setting is another opportunity to learn.”
RadioSpace
“Local VHF and UHF activity keeps radio connected to the community around us.”
VHF / UHF
“Digital modes show how radio and computing can work together at the edge of the noise.”
Digital
“The best station is one that keeps you experimenting, learning and getting on the air.”
On Air
View stations
Stations, community and on-air identity
KQ4NAT
RadioSpace amateur-radio station identity and operating activity.
CO8PHG
RadioSpace callsign identity for contacts, experiments and station projects.
Amateur radio FAQ
What is amateur radio?
Amateur radio is a licensed radio service used for communication, technical experimentation, self-training and contact between operators around the world.
What is a callsign?
A callsign is the unique on-air identifier assigned to a licensed amateur-radio station or operator by the appropriate authority.
What does DX mean?
DX generally refers to long-distance radio communication. Conditions on HF can allow signals to travel hundreds or thousands of miles.
What are HF, VHF and UHF?
They are broad frequency regions used for different kinds of amateur-radio activity, from long-distance HF work to local, repeater and satellite operation on VHF and UHF.
What are digital modes?
Digital modes use a computer or digital interface to encode and decode information over radio. Examples include FT8, RTTY, JS8Call and APRS.
What is a QSL?
A QSL confirms a radio contact. It may be exchanged as a traditional card or through an electronic logging and confirmation service.
Turn on the radio. Listen to the world.
QRZ Cuba
RadioSpace
