DX Cluster
Spots arrive the moment they are posted: from the DXFun Cluster with your own callsign, or from HamQTH without one. Each comes with flag, DXCC entity, CQ and ITU zones, and who heard it.
14.023
20m
3Y0JCWBouvet, UP 2
now
DX Cluster, POTA and SOTA in one app
Who is on the air
right now.
HamQSO puts the DX Cluster, Parks on the Air and Summits on the Air in one live list. Tap a spot and you have the frequency, the station and where to point the antenna.
Free on iPhone, iPad and Android. No account needed.
DXLive from the DXFun Cluster
SFI 152, K 2High bands open
- 21.07415m
JA1XYZFT8-12 dB, JA to EU1 min ago - 28.49010m
PY2ABCSSB59 in Milan, QSX up2 min ago - 18.10017m
ZS6ABCFT8Strong into EU4 min ago - 3.52080m
OH2ABCCW22 wpm, 18 dB6 min ago - 7.03040m
VE3ABCCWCQ DX9 min ago - 14.25020m
LU1ABCSSBBuenos Aires13 min ago - 21.02515m
KH6ABCCWTNX QSO18 min ago
DX
xOTA
Alerts
Profile
Example spots. In the app they are real, and they arrive as they are posted.
Three networks, one list
The spots you used to chase across three websites and a telnet window, filtered the same way and sorted by what just happened.
3Y0JCW
Parks on the Air
Every park being activated right now, with the park name, its location and the spot history of the activation. On a map too.
21.310
15m
K5SNSSSBUS-1105US-OKLake Murray State Park
3 min ago
Summits on the Air
Activations on summits worldwide with points, altitude and the summit log. Stations that went QRT fade out instead of wasting your time.
7.032
40m
HB9ABC/PCWHB/BE-14910 ptNiesen, 2362 m
7 min ago
From the spot to the radio
A spot is only useful if it gets you on the frequency. The detail page is built around that.
- 1Tap the frequency to copy it, the way the app does: the card below works the same.
- 2Short and long path headings for your rotator, with the distance and the time at the station.
- 3Open the callsign on QRZ.com without leaving the app, then spot or re-spot with one tap.
3Y0JBouvet
“UP 2, TNX QSO”
Spotted by 
IU4VRB
IU4VRBAntenna headingQTH: JN54ML → JD15
Short path185° S
Long path5° N
Distance
11,021 km
Time there
15:05
UTC+1, day
Is the band open?
Solar flux, K index and the HF band conditions for day and night, from N0NBH. Each band in the activity strip carries a dot: green good, amber fair, grey closed. Tap a bar and the list shows only that band.
SFI 152, K 2High bands open
HamQSO Pro
Know first
Pick a callsign, a country or a park. HamQSO tells you the moment it is on the air, even with the app closed.
Your first alert is free.
What HamQSO Pro addsTry it: switch a criterion off and its notification goes away.
Notify me forTap a criterion
20 m15 mCWat any distance
JA1ABC from Japan is on the air
14.025 CW, rotator at 38°
3Y0J is on the air
Bouvet Island, 14.023 CW
Park US-1105 activated
K5SNS on 21.310 CW
Look it up
Reference pages for the things a spot is made of.
DXCC entities
All 340 entities with prefixes, CQ and ITU zones, local time and the heading from your locator.
See all
Germany
England
Spain
Australia
Antarctica
Asiatic RussiaBands
From 160 metres to 70 centimetres: edges by region, band plan and the dial frequencies of every digital mode.
See allModes
CW, SSB, FT8 and the rest: what each sounds like, how it shows up on a cluster and where to find it.
See allQuestions
Is HamQSO free?
Yes. The DX Cluster, POTA and SOTA, propagation, spotting and your first alert are free, with no account. HamQSO Pro adds unlimited alerts and the advanced filters.
Where do the spots come from?
From the public networks: the DXFun Cluster (EA4RCH-5) over telnet with your callsign, HamQTH without one, api.pota.app for parks and SOTAwatch for summits. HamQSO does not invent or filter them before you do.
Do I need to be licensed?
To read spots, no: anyone can follow the clusters. To spot a station or connect to the DX Cluster with your own callsign you need a valid amateur callsign.
Does it work on iPad and on Android tablets?
Yes. On a tablet the list and the spot detail sit side by side, so you can keep the cluster in view while you read a spot.
How do alerts work with the app closed?
Alerts are matched on our server against every incoming spot, and the match reaches you as a push notification. The app does not need to be open or running in the background.
See who is on the air
Install HamQSO and the bands are one tap away: the DX Cluster, parks and summits, live.