01
Listen and document
Record the frequency, dates, times, duration and how the interference affects the repeater.
REPEATER INTERFERENCE INVESTIGATION
Find the signal.
Clear the air.
DX Repair offers KrakenSDR-assisted radio direction finding to help repeater owners, trustees and clubs investigate disruptive transmissions.
The work begins with frequency, timing and signal observations. Suitable field measurements can help establish bearings and narrow the area of interest.
WHAT WE DO
Turn repeated interference into useful observations
Direction finding works best when the signal is active, receivable and documented well enough to plan useful measurement locations.
02
Measure direction
KrakenSDR-assisted bearings from suitable locations help focus the search area.
03
Report findings
Observations and measurement results are organized so the repeater team can plan next steps.
THE DX REPAIR APPROACH
Support for repeater owners and clubs
Unexplained key-ups, recurring transmissions and persistent interfering signals can be reviewed for a focused field investigation.
Pattern review
Existing logs and operator observations help identify when a signal is most likely to be active.
Field measurements
Bearings are collected from locations chosen for practical reception and geometry.
Practical limits
Terrain, reflections, intermittent activity and signal strength can affect results.
A CLEAR PATH
What to include in the first message
Repeater details
Provide the callsign, input and output frequencies and general coverage area.
Timing
List dates, times, duration and how often the interference occurs.
Signal description
Describe what is heard and any existing strength or location observations.
Plan the scope
Travel, monitoring, fieldwork, availability and fees are agreed before scheduling.
Direction finding cannot guarantee identification of a source. The signal must be active and receivable, and propagation or reflections can change apparent bearings.
GOOD QUESTIONS. CLEAR ANSWERS.
Before you send it.
Can KrakenSDR identify an interfering transmitter automatically?
No. It provides direction-finding measurements that must be interpreted with location, timing, terrain and other observations.
Does the signal need to be transmitting?
Yes. Useful bearings require the signal to be active and receivable during the investigation.
Who is this service for?
The service is intended for repeater owners, trustees, amateur radio clubs and others responsible for an affected system.
Tell us what your repeater is hearing.
Start with the callsign, frequencies, general area and timing pattern.