Hola a todos: Se calcula como indica el texto: Son múltiplos de 100000/2/GRI, salvo que han suprimido el 137 que precede a todos los armónicos calculados.
El GRI (Group Repetition Interval) identifica a la cadena Loran, y de la Transformada de Fourier de la portadora de 100 KHz modulada pulsadamente con esa secuencia GRI salen las componentes espectrales con la regla 100000/2/GRI. Ejemplo: Para la cadena GRI9007 salen frecuencias múltiplos de 5.551237926... El #24802 sería [137]681.8031, el #24803 sería [137] 687.3543, etc. http://en.wikipedia.org/wiki/LORAN 73 de -Manolo- --- Eduardo EA3GHS <[EMAIL PROTECTED]> escribió: --------------------------------- Adjunto listado de señales Loran entre 137680 y 137720 tal y como ha aparecido en la lista inglesa. ?Alguien sabe como se calculan? 73/dx ---------- Forwarded message ---------- From: [EMAIL PROTECTED] <[EMAIL PROTECTED]> Date: Feb 14, 2006 10:15 PM Subject: LF: Eu LORAN lines near 137700 To: [EMAIL PROTECTED] Dear Dexter and Group, there are five relevant LORAN C chains in Europe. Their spectral lines are at multiples of 100000 Hz / 2 / GRI; here is a list of frequencies between 137680 and 137720 Hz. The lines which look prominent in Hartmut's shot are indicated by an asterisk, but the relative amplitudes vary a lot with the location of the receiver and changing skywave propagation. GRI 6731 (Lessay, Soustons, Rugby, Sylt): 683.8508*, 691.2791, 698.7074*, 706.1357*, 713.5640 GRI 7499 (Sylt, Lessay, Vaerlandet): 685.0247*, 691.6923, 698.3599*, 705.0275*, 711.6951*, 718.3627 GRI 9007 (Ejde, Jan Mayen, Bo, Vaerlandet): 681.8031, 687.3543, 692.9055, 698.4567, 704.0079, 709.5591, 715.1103 GRI 7001 (Bo, Jan Mayen, Berlevag): 680.3314, 687.4732, 694.6150, 701.7568, 708.8986, 716.0404 GRI 8000 (Bryansk, Petrozavodsk, Slonim, Simferopol, Syzran Karachev): 681.25, 687.5, 693.75, 700.00, 706.25, 712.5, 718.75 The Sylt station (and probably the 7499 chain with it) was announced to close down tomorrow, Feb. 15, but the shutdown had been postponed two times already. 73 and best wishes Markus, DF6NM SPONSORED LINKS Electrical engineering degree online Electrical engineering degree Electrical engineering Electrical engineering course Electrical engineering graduate school Online electrical engineering course --------------------------------- YAHOO! GROUPS LINKS Visit your group "ondalarga" on the web. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. --------------------------------- ______________________________________________ LLama Gratis a cualquier PC del Mundo. Llamadas a fijos y móviles desde 1 céntimo por minuto. http://es.voice.yahoo.com Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/ondalarga/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
