ASV_Mk_II_front_transmitter_antenna_on_Consolidated_Canso.png


Summary

Description
English: Centred in this image is the transmitter antenna of an ASV Mk. II radar installed on a Royal Canadian Air Force Consolidated Canso (PBY) aircraft. The left-hand receiver can be see on the extreme right side of the image, dark coloured. Note that the receiver is canted to the side, so that it is more directional and reaches peak sensitivity about 15 degrees to the left. Both antennas use the yagi array principle. with an active element and a passive reflector or director. The ASV Mk. II used two sets of antennas, a forward-firing set seen here, and an optional side-firing set that would be installed on the rear of the fuselage. The side-firing antennas would not be visible in this image even if installed.
Date
Source http://data2.archives.ca/ap/a/a064914-v8.jpg
Author Unknown RCAF photographer, Collections Canada MIKAN no. 3583273

Licensing

Public domain
This Canadian work is in the public domain in Canada because its copyright has expired due to one of the following:
1. it was subject to Crown copyright and was first published more than 50 years ago, or

it was not subject to Crown copyright, and

2. it is a photograph that was created prior to January 1, 1949, or
3. the creator died prior to January 1, 1972.

You must also include a United States public domain tag to indicate why this work is in the public domain in the United States. Note that this work might not be in the public domain in countries that do not apply the rule of the shorter term and have copyright terms longer than life of the author plus 50 years. In particular, Mexico is 100 years, Jamaica is 95 years, Colombia is 80 years, Guatemala and Samoa are 75 years, Switzerland and the United States are 70 years, and Venezuela is 60 years.


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20 May 1944

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