Description:
- Object ID: ALSA 2008.14.03
- Made by: Tellurometer (PTY) Limited
- Model: CA 1000
- Serial Number: Master Unit: 1457, Remote Unit: 1458
- Date Made: Circa 1975.
- Approximate size: 35 cm wide, 16 cm depth including knobs, 11 cm high.
- Accessories:
Two antennas (also called horns), each 12 cm long, 9.5cm on the square end.
Two plastic tripod mounting adapters, each 8cm dia.
Two metal tribrach adaptors, each 8 cm dia.
Two headsets.
Two power cable connectors.
A small metal box container containing two fuses - Condition: Good
Commentary:
The CA 1000 system is a solid-state electronic microwave distance measuring system consisting of a Master Unit and a Remote Unit both contained in a blue carrying case along with the accessories.
It is capable of measuring distances from approximately 50m to 30km. With the standard antenna (also called a horn) it is capbale of measuring up to 10km, with an extended antenna (horn) up to 30km.
A brochure for the system states that operation is extremely easy with the remote operator not needing to be a trained person.
This CA1000 system was owned by Brown Okamura & Associates Ltd., Lethbridge, Alberta. It was used for the Alberta Control Network to measure distances between survey stations in the mountains from the Alberta / British Columbia boundary east to about Range 6, W5M, along the highway 3 corridor through the Crowsnest Pass region of southwest Alberta in the mid 1970’s.
Source of Object: Donated by Dave Williams, ALS (Ret.).
Notes: This is the only pair of CA1000’s in the collection. An operating manual for the CA1000 along with a comprehensive brochure describing the system is in the Societies hard copy file.
References: Visit article “The Skill of Chaining would be lost” – The Tellurometer for additional information.
Description by: Entered by Ed Titanich, October 23, 2024. Gordon Olsson, January 4, 2026