AUSTRALIAN SHORTWAVE JOURNAL



AUSTRALIAN SHORTWAVE RADIO JOURNAL

FOLLOWERS

Rotating Headlines from this Journal!

Tuesday, August 3, 2010

China spectrum study, 11 MHz band

There has been interesting shortpath propagation from China into Melbourne
during our mid-afternoon, during the period 0500 to 0600.

The dominant mode is multi-hop E-layer, where the Absorption Limiting
Frequency (ALF) is around 10 MHz, as compared with about 14 MHz for the
multi-hop
F-mode.

This is a summary of spectrum occupancy as noted on August 3, 2010, from a
field site 40 km east of central Melbourne, in the Olinda Forest, Dandenong
Ranges National Park, using the Eton E5 and about 3 m of random antenna.

11620 CNR5 Beijing Mandarin
11640 CRI Kunming Vietnamese
11660 CNR2 Xian Mandarin
11750 CNR1 Shizaoyang Mandarin
11780 CNR8 Beijing Kazakh to 0530*
11800 CNR2 Beijing Mandarin
11835 CNR2 Xianyang Mandarin
11905 CNR6 Beijing Amoy
11915 CNR2 Baoji Mandarin
11960 CNR1 Beijing Mandarin
12045 CNR1 Beijing Mandarin
12055 CNR8 Kazakh Lingshi

No comments:

Post a Comment