Weak or ‘snowy’ picture at close (10meter or so) range
Usually indicative of a faulty antenna, sma
connector or transmitter.
An internally broken antenna can be
annoying as it is essentially unfixable,
having to buy a new one is the only
realistic solution, however a couple of
basic tests can usually determine where
the fault lies.
Remove the antenna and see if this affects
the reception, if not then this means it is on
the receiver end, continuity test across the
middle pin and outer ring where it screws
onto the monitor. If there is a short here, the
antenna is faulty and should be replaced.
However a further test can confirm if it is
the antenna or if the monitor has an internal
issue with it’s sma socket. Simple if you have
a spare antenna, swap it out and if it fixes
the issue, problem solved. However if you do
not then do as below.
Cut a short length (approx. 28mm) of thin
wire as shown and strip back about 2mm to
expose the metal core.
Congratulations, you have just made a very
basic 5.8GHz antenna.