User's Manual

Lotek Biotracker Receiver User’s Manual Page 25
Full Specifications Table (continued)
Specification Value Explanation
Tuning N/A The receiver can be tuned in 100 Hz (0.1 kHz) or 1
kHz steps. The fine tune (0.1 kHz) is good for
selecting the sound (pitch) you find most comfortable
to listen to. The 1 kHz tuning resolution allows faster
frequency stepping using the arrow keys.
Battery life
Rechargeable NiMH
battery pack
(4 x ‘A’ NiMH cells)
Primary alkaline
‘AA’ cells
NiMH ‘AA’
Rechargeable cells
NiCad ‘AA’
Rechargeable cells
(not recommended)
28 hours
26 hours
20 hours
10 hours
Long battery life reduces both running costs and
the risk that the receiver will stop working in the
middle of fieldwork.
A receiver designer’s choice of battery involves a
compromise between size (weight) and battery life.
Batteries that last longer will also be heavier.
Primary cells are ‘ordinary’ non-rechargeable batteries
(we recommend high grade alkaline cells). We suggest
using primary cells only if you have no local facility for
recharging. Rechargeable cells are more expensive to
buy, but more cost-effective in the long run. We
strongly recommend the Nickel Metal-Hydride battery
pack supplied with each receiver because it contains
higher capacity ‘A’-size cells, and will not suffer from
the over-charging/memory effects of NiCads.
External power
supplies 10.5 – 15 V
The receiver can be powered from an external battery
(e.g. car cigarette lighter). The internal battery is
recharged via the same socket. Powering a receiver
from an external power supply saves internal
battery life and allows the receiver to run from a
vehicle or for long periods with a data logger.
Back-light on LCD
On-time 256 secs
(4.3 mins)
This is for using the receiver at night. It can be
switched on and off using a single key, and it switches
off automatically after about 4 minutes.
Regulatory Compliance
This device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions: (1) this device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired
operation.