General Description for a Top Band DF, Multi Tx Event (Updated Apr 2012)Printer friendly version is here. |
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Example In the picture Maxi A attracted competitors from the start location 20Km away. Maxi A was 'parent' to Minis H, I, J, K, L and Micro Y. Mini H was parent to Micro W Mini J was parent to Micros X and Z. The site spread over three wooded areas with several different parking places. The red dotted line shows one of the important footpaths. Once they arrived some competitors completed the event on foot, others used their cars to save some walking. The winner was 67 at the time! |
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3. Transmission Times are based on a five minute cycle.The Maxi Tx transmits for the first minute of each cycle. Transmissions may be extended as the event progresses.Mini Txs will transmit in a sequence, each being on for one minute of the cycle. Micro Txs will be on continuously. (Note - if two sites and two Maxis are used then then they will also be synchronised - see the organisers information.) 4. Location and DistancesA Mini Tx will be less than 1Km from its parent Maxi TxA Micro Tx will be less than 200m from its parent which could be either a Maxi or Mini Tx. To avoid theft, Minis and Micro Txs will be extremely well hidden and no attempt should be made to uncover them. It is the tickets that are searched for, see below, these will be located within 3 metres of the Tx. IF a Maxi Tx is located in a car or building then a green DF sticker will be placed in the bottom left of a window. Do not trouble an occupant unless you spot the sticker! (Note - this is rare, but may be used if the transmitter is particularly valuable). 5. ScoringThis is achieved by numbered tickets located close to each transmitter. When a competitor finds the tickets the highest value left is taken. All tickets must be handed in at a Maxi Station before the end of the competition. The winner is the person with the highest total score. In the event of a tie, the person who has the most Maxi points wins. If a competitor finds Minis or Micros but no Maxi and thus can’t hand in tickets, they are ranked after all those who do find a Maxi.Jokers are used to encourage individual searching and to provide some help for beginners. 6. Tx Identification and Transmission FormatEach station is identified by a single letter. For legal reasons each Maxi or Mini is also identified by the operator’s callsign sent in fast Morse. Note that since an operator may have several Minis on his site, using the operator’s callsign, it is of no value in the competition. Listen for the slow single letter.A sample transmission for station J, operator G4ABC is below (fast slow) TEST DF J DE G4ABC/P J J carrier until 30s J carrier to 40s J carrier to 50s J carrier to 60s. Txs may follow each other with no obvious gap. The fast Morse indicates the start of a new transmission. Recordings of the Txs may heard here. It will also be possible to identify a station by the time it is on within the 5 minute cycle. An accurate watch is a big help! 7. The Object of an EventThe winner is the person with the highest total score. However, the tickets show which stations have been found, so event organisers can set up some easy stations and offer other prizes to encourage beginners and the less physically adventurous. |
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| Tickets & scoring | Jokers |
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