Romanian Campionatul National US.  FRR CN US Contest. 30 minute sessions. Exchange: Serial Nr and 3 digit Nr made up from Nr in Callsign and op age. e.g. YO9xx sends 001 952, if he rcvd 001 345, his next sent Exch would be 002 345 etc. Similar to LZ Open. Send first qso data by hand or program a spare F key. Use LZopen.mc