DCI DigiTrak FALCON F5 Sub-k Rebar Zusatzhandbuch - Seite 7
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Selecting Sub-k
On a Sub-k™ Rebar (FTR) transmitter, the receiver uses six frequency bands specifically intended for use in
areas of high passive interference:
Band Number
Range in kHz
The Sub-k Up band provides standard-power depth/data capability with options for Bands 7, 11, and 16. The
mid-power Down band uses these same frequencies for data, but assigns depth to new ultra-low bands 0.3,
0.5, and 0.7. By focusing performance in a narrower band of low frequencies, the Sub-k Rebar transmitter
achieves exceptional results around sources of passive interference such as rebar.
With Sub-k, optimize and assign the Up and Down band in the same location, since they use the same band
for data.
To select the Sub-k Rebar (FTR) transmitter:
1. From the Main menu, select Transmitter selection
new FTR Sub-k transmitter
2. At the Locate screen, toggle down to open the Main menu to optimize, pair, and calibrate the
transmitter.
The Up and Down bands on a Sub-k Rebar transmitter have different performance
characteristics, most notably, range. Using the 15" transmitter as an example, its depth/data
range using the ultra-low frequencies available in the Down band is 50 ft. However, when
using the Up band and only its higher 4.5–18 kHz frequencies, its range is about 30% farther,
or 65 ft.
Supplement B for DigiTrak ® Falcon F5 ®
D
Rebar
™
Depth Bands
0.3
0.5
0.7
0.33 – 0.40
0.40 –0.58
0.58 – 0.75
(for 19", 15", or 8").
Transmitter Selection
C
I
IGITAL
ONTROL
NCORPORATED
Data Bands
7
11
4.5 – 9.0
9.0 – 13.5
, Transmitter selection
16
13.5 – 18
, then the
3