PROPAGATION REFLECTIONS PLUS DX QUICK TIPS - Sept 29, 2020
PROPAGATION REFLECTIONS PLUS DX QUICK TIPS September 29, 2020 Sometimes, I wonder why international broadcasters select certain frequencies for their target audiences. It can leave me scratching my head! Take Radio Free Kashmir (RFK), a relatively new clandestine station on the scene. This broadcaster leases time from Radio Romania International via the Tiganesti transmitters. The station is not audible in Australia when it operates between 0330-0430 UTC on 7355 kHz on Saturdays and Sundays only. Way too much daylight between Tiganesti and Mount Evelyn for propagation along that track at 7 MHz. Which is fine because I’m not the target audience for RFK. The Indian subcontinent, South Asia is where the signal needs to be heard. Take a look at the great circle signal path (126˚ beam heading at Tiganesti). At 0330 on September 27, most of the path between Tiganesti and South Asia is in daylight. Indeed, at the start of the transmission, it is 9:00am in Delhi. So we can expect th...