getting ready to
hunt on your own
you are feeling confident about using the DF receiver and can
track down the Micros and the Maxi transmitters, it is time to find out
about the Minis.
Up until now you have only been looking at part
of the picture, these events use a 'tree structure'.
transmitters bring you to an area where you can hear less powerful
transmitters. Just like a family tree, here the term 'Parent' is used
for the big Tx (transmitter) that brings you within range of the little
ones. You have already met the Maxi and the Micros but we
mentioned what comes between - the Minis. If you haven't done so
already take a look at the overview, don't worry about the detail just
notice the three types of Tx and how they are used to
people hunting at different levels, then return to this page.
Link to the overview.
the overview says the Minis are included to challenge people who have
'DFing' for many years.
They are harder because:
is no A4 white sheet near them, just the camouflaged 'Triffid'
and placing them deeper into the bushes.
- They only transmit for one
minute in each five.
- Putting five on one frequency
meaning you have to be very careful about identifying them.
fact that they are only on for one minute means it is very easy to go
past one when it is off. As you have probably already
the 'null' to get a direction isn't too difficult but using the sense
circuit can be tricky and it gets more error prone the closer
to the Tx. So having gone by a Mini it might be some time before you
realise your mistake.
Micro with A4 sheet
aren't all bad!
you are at a distance from them finding the 'null' and taking a 'sense'
to give their direction isn't that hard. As always you will be helped
with this but if you want to read about it and hear the sounds check this page and then
your next event try listening to each of the Minis in turn, sketch
their directions on a piece of paper and ask your helper to check them.
until now the event organiser has been telling you roughly
hunt for the Micros but if you knew that one of the Minis had a Micro
near it, you could use the Mini signal to get you close to the
Micro without asking where to search next,
Minis (or Maxi) will guide you to a Micro is in a secret envelope
provided to help novices, it is called a
Envelope' and the event Organiser or Starter can provide one.
In the example on the right you can see that Maxi A could
be used to
get you near Micro X; Mini H leads to Micro Y;
takes you near both W and Z.
The order you attempt them in is not important.
structure of every event is different so you must get a new envelope
time. You can read more about the 'Parent Envelope'
When you do your next event ask the Organiser about
the envelope, he should have one with him and will help you to
using an envelope for a few events while still coming directly to the
site. When you feel confident, team up with an 'Expert' to
experience the long distance phase of the event (Step
of a Parent Envelope
not let an 'expert' see this!
J - (W & Z)
Call if you need help.