A special award is available for working ham radio stations with the OI prefix. The original award rules are available in Finnish: . An unofficial translation of the rules (as of 2017-12-05) follows.
Rules for the OI award
Version 2017 / OH2LGW
Translation by OH6VA // siradkilta
1. Contacts accepted for the OI award
Contacts with OI prefixed stations, which consist of stations of the Finnish Defence Forces, the Finnish Border Guard, military tradition associations, museums, and guilds, are counted towards the eligibility for the award.
Contacts worked before 2010-01-01 are not accepted.
Contacts must have been worked in accordance to the regulations and IARU recommendations in effect. Repeater contacts are not eligible contacts. Different postfixes (separated with a stroke ”/”) of a station are not counted separately, e.g. OI3X, OI3X/P, or OI3X/M are counted as the same station.
2. Granting the OI award
The award can be granted to a radio amateur, amateur radio club, or a shortwave listener.
To apply for the award, the applicant must present ten (10) contacts with different OI prefixed stations. However, for applicants whose station is not located in Finland, five (5) contacts are sufficient for the eligibility.
The contacts aren’t required to be acknowledged with QSL cards. A log excerpt printed on paper and confirmed with the signatures of two other radio amateurs is accepted as proof. The award is free of charge.
Applications shall be mailed to:
Application must include the return address information to where the award will be delivered.