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Title: High power broadcast transmitters, ionospheric heating and spread-F
Authors: Saha, A K
Venkatachari, R
Issue Date: Dec-1993
Publisher: NISCAIR-CSIR, India
Abstract: A critical examination is made of records of some experiments that were made in 1980-81 to find out if spread-F could be produced by high power short wave broadcast transmitters modifying the F-layer. The heating transmitter of 250 kW was at Aligarh and the monitoring ionosonde at Delhi. It is concluded that, with transmitter power of the above order, enhanced spread-F condition may be produced if some irregularity structure is already present in the F-Iayer and also if the heater frequency is within about ±0.1 MHz of ƒ0F2.
Page(s): 388-390
ISSN: 0975-105X (Online); 0367-8393 (Print)
Appears in Collections:IJRSP Vol.22(6) [December 1993]

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