PEG BOARD

The Gloucester Model Flying Club uses a pegboard to control frequencies at its flying sites. The club operates normally at 10 kHz spacing however we do allow for 20 kHz spacing if needed. See below. Most modern equipment if working properly should function at 10 kHz spacing. However some receivers (I have a few, but rarely use them) don’t like adjacent channel use.  If in doubt carry out the “Adjacent Channel Check” as per the BMFA handbook.   Each member is issued with a membership card and is required to use this to indicate frequency they are flying on.  

  Bona fide guests should use there BMFA cards.  

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The peg board in located in the middle of the parking area

Place your membership card on the board using the pegs provided. If there is a peg/card already on your frequency then find out who it is and go and make yourself known to them.

 

It use to be a practice at most clubs to only place your peg on the board when you are actual flying, removing it when finished so somebody else could use the frequency. Back when I started flying there were only six frequencies and you had to take your turn.

 

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We now have 36 spots in the 35mhz band alone and having to share a frequency is not very common. So when it does happen make sure both or more parties are aware of the clash and sort out between you sharing the frequency during the day.

Persons on the same frequency are responsible for their transmitter control. The above shows a membership card pegged on channel 81. This allows for 10 kHz spacing with both channels 80/82 available for use

 

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The  card shows a card placed to indicate that the flyer wishes to operate at 20 kHz spacing. Placing the card long ways centered on 81 (frequency in use) but partially blocking 80/82. It allows other fliers to use 79 & 83 thus maintaining 20 kHz spacing.

To bring us right up to date a 2.4 Ghz black band has been added at the top of the board. Please place your membership card here as this person has done so we know who and how many are flying on 2.4 Ghz.

 

When you finish flying for the day please remove your card from the board and take it with you.

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The  shows two flyers that wish to operate at 20 kHz spacing. One is on 76 and has partially blocked 75 & 77 the other is on 78 and has blocked 77 & 79. This ensures 20 kHz spacing between them. Be careful around 72/73 as pegboard is not perfect (it should be round). Place another peg on 72/73 as required.  

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Remove all cards left on it and take them with you, you can sell them back to the owners at a later date.

 

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During the light summer evenings Clive normally is last away and in the course of a week he builds up quite a collection of membership cards. It’s no good saying you didn’t forget to remove yours as it’s got your name on it.

Listed below are the 36 recognised channels in the 35 Mhz band licensed for use in the UK for model aircraft operation.  

The actual frequency and/or channel number should be marked on both Transmitter & Receiver crystals. If not then do not use them.  

An orange flag with either black or white numbers should be attached to your transmitter aerial indicating the frequency in use 

Channel Frequency   Channel Frequency
Number Mhz   Number Mhz
55 34.950   73 35.130
56 34.960   74 35.140
57 34.970   75 35.150
58 34.980   76 35.160
59 34.990   77 35.170
60 35.000   78 35.180
61 35.010   79 35.190
62 35.020   80 35.200
63 35.030   81 35.210
64 35.040   82 35.220
65 35.050   83 35.230
66 35.060   84 35.240
67 35.070   85 35.250
68 35.080   86 35.260
69 35.090   87 35.270
70 35.100   88 35.280
71 35.110   89 35.290
72 35.120   90 35.300

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Gloucester Model Flying Club