Document Type

Thesis - Open Access

Award Date


Degree Name

Master of Science (MS)

Department / School

Electrical Engineering


The objective of this research project was to develop a radio telemetry system capable of transmitting the heart rate of the pheasant. Because literature relating to the heart rate of the pheasant is very scarce, data concerning voltage amplitude of the pheasant electrocardiogram (ECG) were needed. To telemeter the heart rate a biotelemetry transmitter was developed. This biotelemetry transmitter is to be used to study the heart rate of' pheasants through the breeding, nesting and brood raising cycle. The transmitter could also be used during the hunting season and other times of stress to determine how pheasants are affected by such stress. The transmitter must be carried by the pheasant and is to be on the pheasant for an extended period of time. The biotelemetry transmitter when completed must be lightweight and small enough so that it does not restrict natural movements and functions of the pheasant. Advancement in the electronics field has produced the integrated circuit (IC)* which lends itself very well to the preceding requirement. Additional requirements for the transmitter are minimum battery drain with long transmitter life. Because of the existing receiving equipment associated with the pheasant research project at South Dakota State University the carrier frequency of the transmitter was chosen to be 151 MHz. The carrier frequency oscillator of the biotelemetry transmitter was designed using scattering parameters. Others have shown that high frequency oscillators can be designed with s-parameters. S-parameters can be measured with ease since all measurements are made when ports are terminated in the characteristic impedance of the line. The Smith Chart is used to plot the reflection coefficients of the input port of the oscillator to aid in the design procedure. Ellerbruch et al. describes a biotelemetry tracking transmitter that was designed and built by personnel of the Electrical Engineering Department at South Dakota State University using the s-parameter design technique. These transmitters were used to obtain information from pheasants by tracking their movements. The material that follows contains design information, experimental results, and conclusions pertaining to the feasibility study for a biotelemetry transmitter using an integrated circuit chip.

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South Dakota State University