Radio & Communication SW

For the first time a could listen on 10 MHz to Observatorio Nacional, Brazil. Then I just made some DX also with vintage receivers as Grundig Satellit 208 del 1968 and Realistic DX-150A.

4985 19/4 2305 Radio Brasil Central, Brazil, songs, fair //11815

5005 19/4 2301 Radio Bata, Guinea E., closing with National Himn. S.off at 2303 good

5910,1 19/4 2253 Marfil Estereo, Colombia, songs, good

5995 19/4 22,45 RTV du Mali, reports in FF, good

6019,4 19/4 2240 Radio Victoria, Peru, usual inspired talks, poor

6160 19/4 2225 CKZN St.John's, Canada, CBC1 talks about Vietnam, good

6300 19/4 2200 National Radio of Saharui RASD, news, in AA, good

7125 19/4 2320 CNR8 (presumed), China, Oriental language, no Conakri traces, fair

7850 19/4 2312 CHU, Canada, pips & ids, very good

9505 19/4 2120 Radio Record, Brazil, talks, weak/fair

9630 19/4 2140 Radio Aparecida, Brazil, religious, fair

10000 19/4 2105 Observatorio Nacional, Brazil, time pips, repeated ids female (later male), fair (better in USB)

11725 19/4 2040 Radio New Zealand, talks EE, weak, off 2050

11735 19/4 1830 Radio Tanzania Zanzibar, nice Afro mx, id local "Zanzibar" at 1844 and religious program. Good

11780 19/4 2032 Radio Nacional, Brazil, talks, fair

11815 19/4 1915 Brasil Central, Brazil, footbal live, good

11855 19/4 1940 Radio Aparecida, Brazil, talks, fair (Later on the frequency there is Family Radio in SS)

11925,2 19/4 1925 Radio Bandeirantes, Brazil, sport, fair

13730 19/4 2051 Radio New Zealand, talks EE, id and news at 2100 weak & fading

15345 19/4 2025 Radio Nacional, Argentina, sport talks about River, good

Rx: SDR-14, Icom R71E, Realistic DX-150A, Grundig Satellit 208, Drake SPR-4
Ant: T2FD 15 meters long
QTH: Milan, Italy

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

La propagazione continua a dare qualche segnale di vita. Anche in città si riesce a fare qualche piacevole ascolto. Ho rimesso in campo il vecchio Drake SPR-4. Con grande soddisfazione. In effetti quando il segnale c'è e non occorre lavorarlo troppo, per quanto debole il Drake riesce a dare un audio bellissimo. Le canzoni della Voz del Guaviare si apprezzano molto meglio. Radio Rebelde sembra la RAI Siziano, con solo un po' di fading.

4845,2 4/4 0148 Radio Cultura, Manaus, Brazil, songs, himn and off at 0157fair

4985 4/4 0140 Radio Brasil Central, Brazil, talks, fair

5910,08 4/4 0128 Radio Marfil Estereo, Colombia, nice songs, good

5952,5 4/4 0124 Radio Pio XII, Bolivia, music and talks, good

6009,8 1/4 0057 La Voz de Conciencia (pres), Colombia, canzoni stopped by QRM on 6010

6035 4/4 0119 La Voz del Guaviare, Colombia, romantic songs, good

6135 1/4 0102 Radio Aparecida, Brazil, Holy Rosary, fair

6160 1/4 0105 CBC St.John's, Canada, reports, EE, weak, better in LSB

6173,83 1/4 0110 R Tawantinsuyo, Peru, mx and talks, weak with fading

6185 1/4 0127 Radio Educacion, Mexico, cultural talks, SS, fair

6195,82 1/4 0120 Radio Cusco, Peru, songs, weak

RX: RF Space SDR-14 & Drake SPR-4
Ant: T2FD diple 15 meters long