Holohil Systems Ltd. - LB-2N & LB-2

Holohil Systems Ltd.
LB-2N & LB-2

The LB-2N and LB-2 are designed for glue-on attachment to small bats, small birds and large insects. The quoted weight is the total weight of the finished encapsulated transmitter, antenna and battery, ready to use in the field.

Frequency Range:LB2: 138 to 235 MHz. LB-2N: 148-151, 164, 165, 172 & 173 MHz only.

Transmitter: Crystal controlled two-stage design, pulsed by a multivibrator.

Pulse Width & Rate: Pulse width 20 ms ą 10%; pulse rate nominal 0.67 p/s (40 p/m).

Specifications: (* = model shown above)

Model	Weight	Nominal Life	Lifespan range	Dimensions LxWxH (mm)
LB-2N	0.31g	7 days	3-7 days	11.5 x 5.3 x 2.8
LB-2N*	0.35g	12 days	8-15 days	11.5 x 5.3 x 2.8
LB-2N	0.42g	21 days	13-22 days	11.5 x 5.3 x 2.8
LB-2*	0.47g	12 days	8-15 days	13 x 6.5 x 3.5
LB-2*	0.52g	21 days	13-22 days	13 x 6.5 x 3.5

Power Output: Set to use available battery power over the required transmitter life.

Housing: The transmitter and battery are encapsulated in an inert waterproof epoxy. Although the unit is usually glued to the animal (click here for gluing instructions), one tube can be attached for the passage of harness material or a suture. A tube will increase the total weight by ~0.05g.

Antenna: Single stainless steel wire, 0.007" (0.18mm) in diameter or a stranded stainless steel wire covered with black nylon coating (0.52g LB-2 only).

Activation: Soldering two wires starts the transmitter. Activation Instructions

OPTIONS
Temperature (suffix "T"): An increase or decrease in temperature results in a corresponding increase or decrease in pulse rate. At the standard settings, the pulse rate changes from ~30 p/m at 0°C to ~50 p/m at 40°C. Each transmitter is supplied with a plotted calibration curve. This option adds ~0.05 g to the finished weight of the transmitter.

Position (suffix "P"): The pulse rate switches from ~24 p/m in a vertical position to ~50 p/m in a horizontal position. This option adds ~0.5g to the finished weight of the transmitter.

Photos of the LB-2N & LB-2 transmitter on various species.

Song Sparrow (25KB)

LB-2NT transmitter glued to a song sparrow (Melospiza melodia).
Photo: Kamiel Spoelstra (2010).

LB-2N transmitter glued to a Honduran white bat (Ectophylla alba).
Photo: Bernal Rodriguez Herrera (2010).

LB-2N transmitter glued to a lesser long-nosed bat (Leptonycteris yerbabuenae).
Photo: Debbie Buecher and Ronnie Sidner (2010).

LB-2N transmitter glued to a stack beetle (Lucanus cervus).
Photo: Klaus Kretschmer (2003).

LB-2 transmitter glued to the back of a Daubenton's bat (Myotis daubentonii).
Photo: John Altringham (2000).

LB-2 transmitter harnessed to the back of a Blackcap (Sylvia atricapilla).
Photo: Wolfgang Fiedler (2003).

LB-2 transmitter glued to a Scapanes beetle.
Photo: Laurence Ollivier (2003).

LB-2 transmitter glued to a tarantula.
Photo: Cara Shillington (2000).

Holohil Systems Ltd., 112 John Cavanaugh Drive, Carp, Ontario, Canada K0A 1L0
Tel: 613-839-0676 Fax: 613-839-0675 E-mail: info@holohil.com