Model XTBU Radio Transmitting Equipment
Abstract
The tests herein reported were conducted to determine the degree of compliance of the Model XTHU Transmitting Equipment with the mechanical and electrical requirements set forth in the governing contract and specifications. The frequency stability and frequency accuracy requirements of the governing specifications have been complied with in practically all respects and the power output obtained on CW and MCW emission conforms with the specification requirements except in the region of 600 kilocycles. Further study is indicated in connection with the phenomena which tend to generate spurious and unwanted oscillations in the power amplifier circuits and to provide satisfactory keying characteristics, free from arcing, when operating in the region of 300 kilocycles. It was found necessary to modify certain items of the assembly in order to obtain satisfactory operation when the equipment was subjected to vibration. The equipment is designed to operate into antennas of the average characteristics which are encountered in the Naval Service but is not designed for operation into antennas whose length may exceed approximately 150 feet.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 19, 1940
- Accession Number
- AD1158805
Entities
People
- C. B. Davis
- G J Butler
- G. J. Meyer
Organizations
- United States Naval Research Laboratory