Abstract
The performance of five low-power HF radio sets was measured at 3.6 MHz under field conditions in Thailand. Variations in performance were noted for CW and voice transmissions as a function of type of set, type of antenna, time of day, and communication range (5-100 mi) in tropical forest (jungle), mountain, and delta terrain. Radio teletype (RTTY) tests over longer paths (out to 1320 km) were made using a jeep-mounted set. The results showed that relatively good communications can be achieved in the tropics on short and intermediate length paths with low-power sets--especially when the proper antenna is used and when the operating frequency is properly chosen.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
