Exporting Contacts
Hamtrax lets you export your contacts to ADIF 3.1.4 format -- the industry standard for ham radio log interchange. Use exports to upload to LoTW, back up your log, submit to award programs, or share contacts with friends.
Getting to the export screen
- Navigate to the Log tab.
- Open the Export section.
You will see a summary showing your total contact count, how many contacts match your current filters, and an estimated file size.
[SCREENSHOT: Export screen showing contact counts, filter summary, and the Export button]
Exporting step by step
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Apply filters (optional). Use the filter panel to narrow your export by band, mode, date range, or other criteria. Only matching contacts will be included. You can also toggle Export all contacts (ignore filters) to include everything regardless of active filters.
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Click "Review & Select Contacts." A preview panel opens showing all contacts that will be included in the export.
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Fine-tune the selection. In the preview, you can manually exclude individual contacts by clicking the exclude button next to each entry. Use the restore button to bring excluded contacts back.
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Click "Export." Hamtrax generates the ADIF file. If your browser supports the File System Access API, you can choose where to save the file and what to name it. Otherwise, the file downloads to your default Downloads folder.
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Confirmation. A success message confirms the file name and location.
The exported file is named qso-log-YYYY-MM-DD.adi by default. You can rename it in the save dialog if your browser supports it.
Common use cases
| Use case | What to do |
|---|---|
| Upload to LoTW | Export your full log (or filter to recent contacts), then upload the .adi file through the TQSL application. |
| Upload to QRZ | Export and upload through the QRZ Logbook import page. Hamtrax also supports direct QRZ sync from the Import screen. |
| Backup | Periodically export all contacts with no filters to keep an offline backup of your log. |
| Share with friends | Filter to a specific activation or contest folder, export, and send the file. |
| Submit to award programs | Filter by the criteria for the award (band, mode, DXCC entities) and export the matching contacts. |
What gets exported
Hamtrax exports all standard ADIF fields including:
- Core fields: callsign, date, time, band, mode, frequency, RST
- Location fields: grid square, QTH, state, country, coordinates
- Activity references: POTA/SOTA park and summit references (MY_SIG, SIG fields)
- Contest fields: contest ID, serial numbers
- QSL fields: QSL sent/received, eQSL, LoTW status
- Station info: operator callsign, station callsign, power
Hamtrax preserves non-standard ADIF fields that were present when you imported a file. These fields are included in exports for full round-trip fidelity -- nothing is lost between import and export.
Exporting requires contacts in your log. If the export button is disabled, check that you have logged or imported at least one contact and that your filters are not excluding everything.