rtty การใช้

• The ARRL began issuing DXCC RTTY Awards on November 1, 1976.
• For its transmission speed, RTTY has low spectral efficiency.
• The ARRL began issuing WAC RTTY certificates in 1969.
• Each DXCC entity was counted as an additional ARRL section for RTTY multiplier credit.
• Amateur Radio operators needed to modify their transmitters to allow for HF RTTY operation.
• On January 7, 1972, the FCC amended Part 97 to allow faster RTTY speeds.
• It was known as the R-388 and was used in multiple receiver diversity RTTY installations.
• The sequence " FSK modulation, such as is commonly seen in Radioteletype ( RTTY ) usage.
• In the 1950s through the 1970s, " RTTY art " was a popular on-air activity.
• These phase shifts serve the same function as the two tones used in traditional RTTY and similar systems.
• Amateur Radio operators used various equipment designs to get on the air using RTTY in the 1950s and 1960s.
• Prior to that date, an award for working 100 countries on RTTY was only available via RTTY Journal.
• Prior to that date, an award for working 100 countries on RTTY was only available via RTTY Journal.
• This reduced character set does not print out in both upper and lower case ( such as RTTY ).
• These designs were first published in " RTTY Journal " starting in September 1967 and ending in 1970.
• Quickly made an executive, he developed the idea of adapting radioteletype ( RTTY ) machines to send data wirelessly.
• Before the computer mass storage era, most RTTY stations stored text on paper tape using paper tape punchers and readers.
• The first RTTY Contest was held by the RTTY Society of Southern California from October 31 to November 1, 1953.
• The first RTTY Contest was held by the RTTY Society of Southern California from October 31 to November 1, 1953.
• Most of the terminal unit equipment used for receiving RTTY signals was homebuilt, using designs published in amateur radio publications.