A contact (QSO) lasts only a moment, but a well-kept log pays off for years. Your log tells you which countries you've worked, how active you are on each band and how close you are to that next award. In this post we cover what belongs in a QSO record, moving from a paper logbook to a computer, the popular logging programs, and the electronic QSL systems (LoTW, eQSL, QRZ).
ℹ️ In this article
Why Bother with a Log?
Logging can look like paperwork at first, but it does several useful jobs in amateur radio:
- A record of your station: When, on which frequency and in which mode you transmitted. If an interference question ever comes up, it is your best evidence.
- QSLs and awards: DXCC, WAS, WAZ and many national awards need confirmed contacts, and confirmation works by matching two logs.
- Your own statistics: Your data shows which bands open at which hours and which antenna actually performs.
- Memories: Your first DX, your first satellite contact, that SOTA summit... the log is the diary of your hobby.
What Goes into a QSO Record?
Paper or software, the core fields are the same:
| Field | Description | Example |
|---|---|---|
| Date | Date of the contact in UTC | 2026-10-29 |
| Time | UTC time (not local time!) | 14:32 |
| Callsign | The other station's callsign | DL1ABC |
| Band / Frequency | Band or exact frequency | 20 m / 14.074 MHz |
| Mode | SSB, CW, FM, FT8, etc. | FT8 |
| Report (RST) | Sent and received signal report | 59 / 57 or -10 / -15 |
| Notes / Name / QTH | Operator name, location, locator, gear notes | Hans, JO62 |
The most common mistake is logging local time. Türkiye is on UTC+3, so a contact logged in local time ends up three hours off from the other station's log, and electronic QSL systems simply won't match it. The rule is easy: always log in UTC. Near midnight, remember the UTC date may differ from your local date too.
Paper or Computer?
Paper still has its place: no power needed, handy in the field, and no software update can break it. Plenty of POTA and SOTA operators jot contacts on paper or a phone and type them in once they're home.
As your QSO count grows, though, a computer log becomes essential. The software looks up the DXCC entity from the callsign, tells you whether you've worked the station before, reads frequency and mode from your rig over CAT, and uploads to QSL services in one click.
ADIF: The Common Language of Logs
Whatever program you pick, one acronym matters: ADIF (Amateur Data Interchange Format). Almost every logger and QSL service imports and exports it, so switching programs never means losing your contacts. Exporting an ADIF backup regularly and storing it somewhere else is a habit worth building.
Popular Logging Software
There are many loggers out there. A few that hams in Türkiye use often:
- Wavelog: An open-source, web-based logger. Install it on your own server, a Raspberry Pi or a hosting account and reach your log from any browser. Integration with LoTW, eQSL, QRZ and Club Log, award tracking and maps have made it very popular in recent years.
- Log4OM: A free, full-featured Windows desktop logger with CAT control, DX cluster support and QSL service integration.
- N1MM Logger+: The de facto standard for contesting, with fast entry, templates for many contests and dupe checking. Great for contests rather than everyday logging.
- Mobile apps: For field work, phone-based loggers are convenient, and most can export ADIF.
For digital modes like FT8, WSJT-X writes contacts to its own wsjtx_log.adi file and can also forward them over UDP to a logger such as Wavelog or Log4OM, so you never have to type digital QSOs by hand.
Electronic QSL: LoTW, eQSL and QRZ
Confirmations used to travel only as paper QSL cards in the mail. Cards are still a lovely part of the hobby, but most confirmations today happen electronically.
LoTW (Logbook of The World)
Run by the ARRL, LoTW is the electronic confirmation system accepted for ARRL awards such as DXCC. It is built on verified identity: you create a certificate request with the TQSL program, send proof of your licence to the ARRL, and once approved you digitally sign and upload your log. When both stations' records match on callsign, date/time, band and mode, the contact counts as confirmed. Setup takes a little effort, but once done it runs quietly for years.
eQSL and QRZ Logbook
eQSL is a widely used service for picture-style electronic QSL cards, with its own award programs. The QRZ.com logbook also stores your contacts and shows matched QSOs. Depending on which awards you chase, you can use all of them side by side; a good logger automates the uploads anyway.
💡 Tip
Tip: QSL matching usually allows only a few minutes of time difference. Keeping your PC clock synced over the internet is essential for both FT8 and an accurate log.
Good Logging Habits
- Log right after the contact. "I'll write it down later" usually means forgotten or wrong entries.
- Double-check the callsign. One wrong letter means the confirmation never arrives. Get portable suffixes (/P, /M) and prefixes right.
- Define your own location. If you operate from several places, create a station profile for each (locator, province, park or summit reference).
- Back up regularly. Keep an ADIF copy on an external drive or in the cloud so years of work don't vanish with a single disk failure.
- Upload QSLs consistently. A weekly upload to LoTW and other services means the other side gets their confirmation quickly too.
Wrapping Up
A good log uses UTC, accurate callsigns and complete band/mode data, gets backed up and is uploaded to electronic QSL systems. Start on paper, move to software like Wavelog or Log4OM, and let LoTW carry you toward awards. For official details, see ARRL LoTW and the ADIF specification site.
How do you keep your log: paper, Wavelog or something else? Share your experience and tips in the comments. 73!
