Export your ADI file
Select the required QSOs in your logging software and export them as ADI or ADIF.
ADI / ADIF QSL Cards
ADI Printed QSL Cards
Professional QSL cards printed directly from your log file.
For active amateur radio operators, DXers, contest stations and DXpeditions, manually writing QSL cards can become one of the most time-consuming parts of the hobby. When hundreds or thousands of QSOs need to be confirmed, handwriting contact details is inefficient and increases the risk of mistakes.
CoolQSL offers professional QSL cards with contact information printed directly from your ADI / ADIF log file. You send the exported log, choose the card design and backside layout, and we prepare ready-to-send QSL cards with printed QSO data.
How it works
From ADI file to printed QSL cards
A simple workflow for active operators and large logs.
Choose design and layout
Use your own design or let CoolQSL prepare a custom QSL card design for you.
Print and ship
Your QSO data is printed on the cards and the finished cards are shipped ready to use.
What is an ADI / ADIF file?
ADIF means Amateur Data Interchange Format. It is the standard format used by amateur radio logging software to exchange QSO data. Most modern logbooks can export selected contacts into an ADI or ADIF file, which makes it perfect for QSL card production.
ADI printed QSL cards can be prepared from logs exported by Log4OM, N1MM Logger+, DXLog.net, Ham Radio Deluxe, Win-Test, UCXLog, Logger32, DXKeeper, Swisslog and many other programs that support standard ADIF export.
How many QSOs fit on one card?
Depending on the selected backside layout, typically 4–8 QSOs can be printed on one QSL card. This is useful when you have several contacts with the same station on different bands, modes or dates.
If more contacts need to be confirmed, additional cards are generated automatically. The layout remains clean, readable and professional.
Standardized QSO Data Layout
ADI printed QSL cards use a proven and optimized QSO data layout. To ensure full compatibility with automated ADI imports and maintain excellent readability, the QSO data section has a fixed structure and cannot be individually redesigned.
- the QSO table position remains unchanged,
- the appearance of QSO data fields remains unchanged,
- the order of information is always the same,
- 4–8 QSOs can be printed on a single card.
The overall card design can be fully customized, including photos, colors, logos, callsigns and graphics. Only the ADI QSO data module remains standardized.
Who should use ADI printed QSL cards?
This service is ideal for active DX operators, contest stations, special event callsigns, clubs and DXpeditions. When the log contains hundreds or thousands of contacts, manual handwriting is slow and error-prone. Printing from an ADI file solves this problem.
It is also a great choice for operators sending cards via bureau or direct mail and for anyone who wants consistent, readable and professional-looking QSL cards.
Benefits of QSL cards printed from a log file
- huge time savings for large QSL batches,
- clean and readable QSO data,
- fewer transcription errors,
- professional appearance of every card,
- multiple QSOs confirmed on one card,
- ready cards for bureau or direct QSLing.
Contest and DXpedition QSL cards
Contest and DXpedition logs can contain thousands of contacts. ADI-based production allows large QSL card batches to be prepared quickly and accurately. It is especially helpful for contest calls, DXpeditions, special event stations and clubs that want to reduce manual work.
CoolQSL has more than 26 years of QSL experience and has produced cards for operators from more than 200 DXCC entities worldwide.
Premium QSL card quality
Standard CoolQSL cards are printed on 350 g coated matte paper. The front side is laminated with glossy film, giving the card a more elegant look, better feel and additional protection during handling and shipping.
How to prepare your file
Export only the contacts that should be confirmed by QSL card. Send the ADI file together with your inquiry. If you are not sure how to export the file from your logging software, contact us and we will help you prepare the file correctly.
By hams, for hams
Created by a ham radio operator for ham radio operators
CoolQSL was founded and is operated by SP5ADX – Radek, an active amateur radio operator with more than 30 years of on-air experience.
As a radio amateur, DXer and QSL enthusiast, he understands the needs of operators, contest stations, clubs, special event callsigns and DXpeditions. CoolQSL is not just a general printing company — it is a brand built inside the amateur radio community.
SP5ADX
Radek
radio amateur, DXer, QSL designer and print specialist
- 30+ years in amateur radio
- 26+ years of QSL experience
- QSL projects for operators from 200+ DXCC entities
FAQ – ADI Printed QSL Cards
Can I send only selected QSOs?
Yes. Export only the contacts that should be printed on the cards.
How many QSOs can be printed on one card?
Usually 4–8 QSOs, depending on the selected backside layout.
Can CoolQSL design the card for me?
Yes. We can prepare the front design and backside layout or work with your existing materials.
How long does production take?
Most ADI printed QSL card orders are completed in approximately 5 business days after file and design approval.
Do you ship internationally?
Yes. CoolQSL serves amateur radio operators worldwide.