Mystery of two 40-metre interference
cases closer to being solved
The mystery of the interference caused by a transmission around
7 205 kHz has been solved however, eradication of the problem may
turn out to be long-winded if not impossible. The interfering signal
comes from a jamming transmitter close to South Africa's border.
The signal spreads wide and often creates a high noise level on
the 40m amateur band. The SARL IARUMS group is taking the matter
further and will report progress as and when a breakthrough is imminent.
Another 40-metre inference case was solved with the assistance
of the Port Elizabeth ICASA Interference unit.
A poorly installed electric fence caused the interference experienced
by an amateur in Port Alfred. The company maintaining the fence
has been given an ultimatum to sort out the problem or switch off.
Stay tuned for progress on this case.
The SARL is still looking for radio amateurs to join the SARL IARU
Monitoring group. To join this group send your details to armi@sarl.org.za.
As part of the SARL Divisional Advisers programme, a teleconference
will be set-up to brief monitors and formalise the IARUMS process.
Courtesy of
The South African Radio League
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