04 April 2009
Bandscan 7100 - 7200 kHz
Il 29 marzo è scattato il nuovo Band plan che assegna anche ai radioamatori non americani la fetta dei dei 40 metri tra 7100 e 7200 kHz. Le stazioni broadcasting hanno così lasciato questo segmento. Qualcuna subito, altre con un paio di giorni di ritardo. Qualcun’altra ha invece resta. Si tratta di stazioni domestiche. Quindi si apre la possibilità per noi ascoltatori di poter seguire qualche emittente prima piuttosto interferita. Inoltre è arrivata una nuova stazione, Radio Hargheisa, dalla Somalia che si è posizionata qui, vicino alle emittenti di Etiopia ed Eritrea. Insomma questa è la banda del Corno d’Africa.
Chi è interessato ai monitoraggi degli "intrusi" nelle bande amatoriali può visitare il sito www.iarums-r1.org e poi cliccare su latest intruder news (sulla sinistra)
Di seguito un primo bandscan, realizzato a Milano, che fotografa la banda nei primi giorni dopo il cambiamento:
7100 29/3 1935 Voice of Korea, N.Korea, English, reports, fair - at 2000 in Korean very good
7105 29/3 2151 PBS Menggu, China (presumed), very weak, stopped by a carrier at 2155
7105 29/3 2200 Voice of Hope, Taiwan, start program, ids, news, good, off at 2259
7110 30/3 0355 Radio Ethiopia, nice music, great id at 0400 very good
7110 29/3 1845 Radio Ethiopia, Talks, Ahmaric, good
7110 31/3 1950 Radio Ethiopia, nice songs, News at 2000, songs again. Good
7115 30/3 0558 AIR Port Blair ? Indian music and talks on the hour, weak
7115 31/3 1807 AIR, India, slow Indian songs, id and off at 1830 good
7125 29/3 2005 Radio Conakri, talks, poor modulation, poor with HAM QRM, better around 2100, FF
7130 31/3 1727 two stations, one surely chinese with id heard, the other not sure if Chinese too. Disappeared after 1800.
7135 30/3 0455 BR1 Belarus, talks, mx, id 0500, fair
7135 31/3 1835 BR1 Belarus, talks, fair
7135 29/3 2040 Belarus Radio 1, music, id at 2047 and 2100 with time pips weak signal
7145 31/3 1835 Radio Hargheisa, Somalia, songs, reports, off 1900 good
7160,1 30/3 0012 American Hams, QSO in AM ! S=8 good! Now it is possible to hear them. Also on 7150
7165 30/3 0458 Voice of Broad Masses afro mx and talks on the hour with news. fair/good strong QRM from digital signal before 0458 and since 0359:
I can think it could be a jamming from Ethipia, that in the evening use the same frequency.
7165 31/3 1720 Radio Ethiopia, songs, news at 1730 in French, fair-good
7165 29/3 2250 PBS Nei Menngu, China, //9520 poor, QRM HAM
7170 29/3 2105 PBS Xizang, China, (presumed), slow music, weak and slowly fading down
7175 29/3 1758 Voice of Broad Masses, Eritrea, talks, vn, good
7175 31/3 1835 Voice of Broad Masses, Eritrea, reports, off at 2001 after Hymn good
7180 29/3 2130 Voice of Korea, N.Korea, Talks in Chinese, fair/good
7185 30/3 0030 Myanma Radio, Myanmar, Start bc, poor/fair – moved to 7200
7190 29/3 2101 RTT Tunis, news, talks, mx, AA, fair – moved to new frequency
7195 29/3 2330 PBS Xinijang, China, starting BC, //4980 fair
RX: SDR-14, Drake R-4C, Icom R71E
Ant: T2FD 15 meters long
Here an interesting survey made by S.Hasegawa (NDXC), a Japanese DXer, on March 29
7100 VOKorea
7105 Nei Menggu PBS *2150-, -1605* Chinese
7110 R.Ethiopia -1900-
7115 Nei Menggu PBS *2150-, -1605* Chinese, spurious of 7105kHz
7120 Xinjiang PBS *1030-1230* Kyrgyz
7125 Xizung PBS *2100-,-1800* Tibetan, incl English 1630-1700
7125 UnID Afro st -1930-
7130 RTM-Sarawak FM +1000-7130 RTI-CBS *1400-1800* Chinese and Jamm. on CNR-1.
7140 VOKorea
7140 R.Rossii *1900-, -1500* Yakutsk? not confirmed local px.
7155 Xinjiang PBS -1200* Chinese
7165 Nei Menggu PBS *2150-, -1600* Chinese
7170 Xizang PBS *2000-, -1800* Chinese
7175 VOBM -1400-
7180 VOKorea
7185 RTI-CBS *1000-1700* Chinese and Jamm. on CNR-1
7190 UnID Arabic -1900- (Note: it was Tunis)
7195 Xinjiang PBS -1800* Uighur
Chi è interessato ai monitoraggi degli "intrusi" nelle bande amatoriali può visitare il sito www.iarums-r1.org e poi cliccare su latest intruder news (sulla sinistra)
Di seguito un primo bandscan, realizzato a Milano, che fotografa la banda nei primi giorni dopo il cambiamento:
7100 29/3 1935 Voice of Korea, N.Korea, English, reports, fair - at 2000 in Korean very good
7105 29/3 2151 PBS Menggu, China (presumed), very weak, stopped by a carrier at 2155
7105 29/3 2200 Voice of Hope, Taiwan, start program, ids, news, good, off at 2259
7110 30/3 0355 Radio Ethiopia, nice music, great id at 0400 very good
7110 29/3 1845 Radio Ethiopia, Talks, Ahmaric, good
7110 31/3 1950 Radio Ethiopia, nice songs, News at 2000, songs again. Good
7115 30/3 0558 AIR Port Blair ? Indian music and talks on the hour, weak
7115 31/3 1807 AIR, India, slow Indian songs, id and off at 1830 good
7125 29/3 2005 Radio Conakri, talks, poor modulation, poor with HAM QRM, better around 2100, FF
7130 31/3 1727 two stations, one surely chinese with id heard, the other not sure if Chinese too. Disappeared after 1800.
7135 30/3 0455 BR1 Belarus, talks, mx, id 0500, fair
7135 31/3 1835 BR1 Belarus, talks, fair
7135 29/3 2040 Belarus Radio 1, music, id at 2047 and 2100 with time pips weak signal
7145 31/3 1835 Radio Hargheisa, Somalia, songs, reports, off 1900 good
7160,1 30/3 0012 American Hams, QSO in AM ! S=8 good! Now it is possible to hear them. Also on 7150
7165 30/3 0458 Voice of Broad Masses afro mx and talks on the hour with news. fair/good strong QRM from digital signal before 0458 and since 0359:
I can think it could be a jamming from Ethipia, that in the evening use the same frequency.
7165 31/3 1720 Radio Ethiopia, songs, news at 1730 in French, fair-good
7165 29/3 2250 PBS Nei Menngu, China, //9520 poor, QRM HAM
7170 29/3 2105 PBS Xizang, China, (presumed), slow music, weak and slowly fading down
7175 29/3 1758 Voice of Broad Masses, Eritrea, talks, vn, good
7175 31/3 1835 Voice of Broad Masses, Eritrea, reports, off at 2001 after Hymn good
7180 29/3 2130 Voice of Korea, N.Korea, Talks in Chinese, fair/good
7185 30/3 0030 Myanma Radio, Myanmar, Start bc, poor/fair – moved to 7200
7190 29/3 2101 RTT Tunis, news, talks, mx, AA, fair – moved to new frequency
7195 29/3 2330 PBS Xinijang, China, starting BC, //4980 fair
RX: SDR-14, Drake R-4C, Icom R71E
Ant: T2FD 15 meters long
Here an interesting survey made by S.Hasegawa (NDXC), a Japanese DXer, on March 29
7100 VOKorea
7105 Nei Menggu PBS *2150-, -1605* Chinese
7110 R.Ethiopia -1900-
7115 Nei Menggu PBS *2150-, -1605* Chinese, spurious of 7105kHz
7120 Xinjiang PBS *1030-1230* Kyrgyz
7125 Xizung PBS *2100-,-1800* Tibetan, incl English 1630-1700
7125 UnID Afro st -1930-
7130 RTM-Sarawak FM +1000-7130 RTI-CBS *1400-1800* Chinese and Jamm. on CNR-1.
7140 VOKorea
7140 R.Rossii *1900-, -1500* Yakutsk? not confirmed local px.
7155 Xinjiang PBS -1200* Chinese
7165 Nei Menggu PBS *2150-, -1600* Chinese
7170 Xizang PBS *2000-, -1800* Chinese
7175 VOBM -1400-
7180 VOKorea
7185 RTI-CBS *1000-1700* Chinese and Jamm. on CNR-1
7190 UnID Arabic -1900- (Note: it was Tunis)
7195 Xinjiang PBS -1800* Uighur
