Many digital radio-relay routes use radio-frequency channel arrangements originally designed to accommodate analog radio-relay systems.
When radio-relay and communication satellite systems share frequency bands, as they do at 4 and 6 GHz, it is necessary to impose restrictions on both systems so that interference is not excessive.
The author describes the technical arrangements made in connection with the Congress held in Buenos Aires, the dissemination of the proceedings over Europe and the transmission and broadcasting of
This article describes the equipment supplied to an Antarctic whaling company to enable the various ships to communicate with one another and with the shore headquarters.
"O A D I O A C T I V I T Y is a world-famous word relating to a worldfamous subject.
It appears that the NCRP occupational RFPG and the C95 RFPG differ only with respect to modulation reduction and exclusions for hand held transmitters radiating less than 7W.
RAID-6 code is a class of [n=k + 2, k] systematic MDS codes to tolerate two failed drives.
Telecommunications cables installed in close proximity to power transmission lines or a.c.
Heavy rainfall on a radio path absorbs and scatters power transmitted at frequencies above 10 GHz and causes large fading of received signals.
In 1967 and 1968, the Bell System used a suntracker during the day and a radiometer during the night to measure rain attenuation statistics on earth-space paths because there were no strong signal
