Radio Transmitters for Mourning Doves: A Comparison of Attachment Techniques

1981 ◽  
Vol 45 (2) ◽  
pp. 524 ◽  
Author(s):  
Matthew C. Perry ◽  
George H. Haas ◽  
James W. Carpenter
Keyword(s):  
Radio Transmitters ◽  
Mourning Doves

Functional Failures and Noise Arising under the Effect of Powerful Ultrashort Pulses on Mobile Phones and Radio Transmitters

2004 ◽  
Vol 62 (11) ◽  
pp. 971-976
Author(s):  
V. B. Avdeev ◽  
D. V. Avdeeva ◽  
A. V. Berdyshev ◽  
G. V. Makarov ◽  
S. N. Panychev ◽  
...  
Keyword(s):  
Mobile Phones ◽  
Ultrashort Pulses ◽  
Radio Transmitters

Monitoring feeding behaviour of brent geese Branta bernicla using position-sensitive radio transmitters

2001 ◽  
Vol 7 (1) ◽  
pp. 77-86 ◽  
Author(s):  
Mark Hassall ◽  
Simon J. Lane ◽  
Martin Stock ◽  
Steve M. Percival ◽  
Barbara Pohl
Keyword(s):  
Feeding Behaviour ◽  
Branta Bernicla ◽  
Radio Transmitters ◽  
Position Sensitive

Modern Weather Surveillance Radars: Hygienic Aspects of Monitoring Electromagnetic Fields at Operators’ Workplaces and in the Environment

2020 ◽  
pp. 34-40
Author(s):  
VN Nikitina ◽  
GG Lyashko ◽  
NI Kalinina ◽  
EN Dubrovskaya ◽  
VP Plekhanov
Keyword(s):  
Electromagnetic Fields ◽  
Weather Radar ◽  
Measuring Instruments ◽  
Residential Areas ◽  
Emf Measurements ◽  
Operating Modes ◽  
Weather Radars ◽  
Radio Transmitters ◽  
Permissible Levels ◽  
Radar Antennas

Summary. Introduction: Location of weather surveillance radars near settlements, in residential areas and on airport premises makes it important to ensure safe levels of electromagnetic fields (EMF) when operating these radio transmitters. EMF maximum permissible levels for weather radars developed in the 1980s are outdated. Our objective was to analyze modern weather surveillance radars to develop proposals for improvement of radar-generated radiofrequency field monitoring. Materials and methods: We studied trends in meteorological radiolocation and technical characteristics of modern weather radars for atmospheric sensing and weather alerts, analyzed regulations for EMF measurements and hygienic assessment, and measured radiofrequency fields produced by weather radar antennas in open areas and at workplaces of operators. Results: We established that modern types of weather radars used in upper-air sensing systems and storm warning networks differ significantly in terms of technical characteristics and operating modes from previous generations. Developed in the 1980s, current hygienic standards for human exposures to radiofrequency fields from weather radar antennas are obsolete. Conclusions: It is essential to develop an up-to-date regulatory and method document specifying estimation and instrumental monitoring of EMF levels generated by weather radars and measuring instruments for monitoring of pulse-modulated electromagnetic radiation.

What Limits Mourning Doves to a Clutch of Two Eggs?

The Condor ◽  
1987 ◽  
Vol 89 (3) ◽  
pp. 486 ◽  
Author(s):  
David Westmoreland ◽  
Louis B. Best
Keyword(s):  
Mourning Doves
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