User's Manual

DIGITAL CONTROL INCORPORATED
DigiTrak Falcon
™
F5

Operator’s Manual 27
Frequency Optimization
To optimize and select a frequency band:
1. Ensure all transmitters are powered off or are more than 100 ft. away from the receiver.
2. Take your receiver to the point along the proposed bore that you expect to have the
greatest amount of noise (active interference).
3. With the receiver parallel to the bore path, open the Main menu, select Transmitter
Selection , then Frequency Optimization (FO) .
The Falcon F5 receiver scans and measures the background noise (active interference)
in multiple frequencies. The display will cycle through each band for about 15 seconds
while it is scanning.
When frequency optimization is complete, the receiver shows active noise readings in
each of the nine frequency bands using an optimized selection of the lowest-noise
frequencies within each band. The shorter the bar on the graph, the less interference
present in that band.
-90 to -72 dB Low interference levels
-72 to -54 dB Moderate interference
-54 to -18 dB Interference will become an issue as depth increases
Frequency Optimizer Results
4. To measure noise readings from the entire intended bore, simply walk the bore with the
frequency optimization results displayed. As the receiver continues sampling background
noise, it marks the maximum noise reading of each band at the top of each bar.
Optimize as often as you want. You can't wear it out.
If noise levels rise substantially at any point along the bore, consider selecting and pairing
one band (see next step) that performed well up to this point. Then select Exit and
restart FO at this point to perform a new scan and select and pair a second band for use
in this higher-interference area. Optimize as often as you want and wherever you want
before assigning a band.
Exit
Band selector
Median kHz of each band
Current optimized noise
readings
Maximum noise reading
Pair
Current Up band
Current Down band