2012
DOI: 10.1029/2011rs004914
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Comparison of propagation predictions and measurements for midlatitude HF near‐vertical incidence sky wave links at 5 MHz

Abstract: [1] Signal power measurements for a UK-based network of three beacon transmitters and five receiving stations operating on 5.290 MHz were taken over a 23 month period between May 2009 and March 2011, when solar flux levels were low. The median signal levels have been compared with monthly median signal level predictions generated using VOACAP (Voice of America Coverage Analysis Program) and ASAPS (Advanced Stand Alone Prediction System) HF prediction software with the emphasis on the near-vertical incidence sk… Show more

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Cited by 14 publications
(9 citation statements)
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“…Therefore, the estimation could not work in a period of daily bases [11]. However, real-time channel evaluation (RTCE) able to select maximum observed frequency (MOF) estimate, and consequently, its be able to select the best available frequency for short term and real time operation [7].…”
Section: Hf Ionospheric Performance Predictionmentioning
confidence: 99%
See 1 more Smart Citation
“…Therefore, the estimation could not work in a period of daily bases [11]. However, real-time channel evaluation (RTCE) able to select maximum observed frequency (MOF) estimate, and consequently, its be able to select the best available frequency for short term and real time operation [7].…”
Section: Hf Ionospheric Performance Predictionmentioning
confidence: 99%
“…Furthermore, The receiver side also uses the same type of antenna. NVIS channels use frequencies generally in the range 2 -10 MHz [7]. Within the range is then divided into 3 bands of 80 m band (3.5 MHz), 60 m band (5 MHz) and 40 m band (7 MHz).…”
Section: Measurement Setupmentioning
confidence: 99%
“…Duplicating our previous measurement system is not practical because of its size and the costs involved. System designs could not be adopted from other groups either: Hervás et al [29] and Walden [30] did not measure polarization. Erhel et al used large fixed antennas and did not achieve sufficient cross-polarization [24].…”
Section: Introductionmentioning
confidence: 99%
“…The study is based on comparing data obtained by measuring the reception level in a number of locations situated in the coverage area of a TETRA base station with data expected to be obtained (predicted) in the respective measuring points by simulating the TETRA network by Radio Mobile application [7], [8].…”
Section: Methodsmentioning
confidence: 99%