NAOMI UEMURA's Transceiver

Transceiver for Adventurers

At the special exhibition, the transceiver used by Uemura was on display. I think it's a very important exhibit for anyone interested in professional transceiver.

Transceiver and Batteries

Transceiver

Made by Spilsbury and Tindall Ltd., Vancouver

This is a product of the Canadian company Spilsbury and Tindall Radio Communications Limited. This SBX-11 model appears to be from the late 1970's.

SBX-11 Portable SSB Transceiver

This transceiver was developed for use in the Canadian arctic and have been choice for many Polar expeditions. The entire unit, including transceiver, microphone, and batteries, is enclosed in a rugged corrosion resistant weatherproof aluminum case. The weight is approximately 8 lbs. Temperature range is -30℃ to +50℃. Uemura carefully selected stable products with high reliability worldwide.

Lithium Batteries

A lithium battery manufactured by Japanese Matsushita Electric (now Panasonic). The part number is LR-CE3X2. Nominal voltage is 16.8 volts. Manufactured in March 1978 (Showa 53).

Lithium Batteries

Antenna Cable

This is called a dipole antenna and consists of a coaxial cable (black cable) with a quarter wavelength wire attached to each end. Since the total length of the wire is 1/2 wavelength, it is about 20 meters for the frequency of 7,300 kHz, and about 32 meters for the frequency of 4,680 kHz.

Antenna cable wrapped around a thin plate

Since the length of the dipole antenna wire varies depending on the radio frequency, Uemura prepared an antenna cable set with a length that matched the frequency used for communication.

How to communicate with the base camp

Frequency Data List

It was an interesting exhibition for historical transceiver collectors and vintage transceiver enthusiasts. The frequency data attached to the body of the transceiver "How to communicate with the base camp" is important information for radio enthusiasts.

Next Page Articles

→ Next    Chapter 4   Dogsled

Shortcuts

Chapter 0      Top Page
Chapter 1      Go to the Nikon Museum
Chapter 2      Heavy Winter Clothing
Chapter 3      Transceiver
Chapter 4      Dogsled
Chapter 5      F2 UEMURA SPECIAL 1
Chapter 6      F2 UEMURA SPECIAL 2
Chapter 7      Epilogue