Here are some useful ham radio links I have found.
Callsign Databases.
eQSL
LoTW
qrz.com
hamqth.com
hrdlog.net
ClubLog
qrzcq.com
Great Software.
Log4OM good free logging software
Minos contest logger
N1MM+ contest logger
FLdigi
Good map utilities.
(Ones now as strikethough text ruined by Google)
K7FRY locators on Google maps
Maidenhead locators on Google maps
TK5EP locator mapping page
Address to Maidenhead search map
Maidenhead from OS Grid ref
Find your NGR on Google maps
Find NGR/Lat long for UK
Find NGR/Lat long for Ireland
Find NGR/Lat long/Altitude world
Hug-Good online OS mapping
UK postcode map
Online postcode map
Summit line of sight plotter
Summit view plotter
Find altitude on Google maps
Radius around a point on Google maps
Simple QSO map plotting page
Detailed EDI log analysis page
Very good log mapping
Nice manual entry QSO mapping
WG7J grid mapping (drag if not in USA)
SM7LCB QSO map (best with EDI file)
SM7LCB QRA map (best with EDI file)
Opencontest EDI visualiser
K2DSL ADIF mapping page
Antenna interest.
DK7ZB Yagis & Match
Feed line facts
GM3SEK dipole chokes
Good read on common mode chokes
50 or 75 ohm coax
Coax loss calculator
Few tips on traps
Attic multi band coax trap antenna
Portable link dipole
Link dipole calculator
YU7EFÂ Yagis
G3TXQ Cobweb 5 band antenna
GM3SEK yagi links
Good page on element mounting
Power splitters
More power splitter info
Boards and Forums.
Log4OM forums
SOTA (Summits On The Air) forums
WAB (Worked All Britain) forums
RadioClassifieds.co.uk
Ham Radio Deals
General Interest.
GM3SEK useful info
Supplier sites.
Nevada Radio
Martin Lynch & Sons
SOTAbeams
Tino’s antennas & parts
Barenco
The DX shop
Clusters and Propagation.
Solar and band conditions
SOTAwatch
Filtered SOTAwatch
DXcluster.co.uk
DX Summits spotting cluster
DX Maps
ON4KST chat rooms
Hepburn tropo forecast map
F5LEN tropo forecast map
Radio Organisations.
RSGB
RSGB VHF Contests
Worked All Britain
Summits On The Air
Android Apps.
Rucksack Radio Tool