ARLA/CLUSTER: New sequence using the Next Generation Beacons platform

[João Costa > CT1FBF]

---------- Forwarded message ----------
From: Antonio Matias <ct1ffu  gmail.com>
Date: 2013/3/30
Subject: [CT-Com. & Tec.] New sequence using PI4 on 4 m
To: ct-comunicacoes-e-tecnologias  googlegroups.com


Today the OZ7IGY beacons using the Next Generation Beacons platform on 70
cm, 2 m, 4 m and 6 m have changed sequence and is now sending a 1 minute
sequence sending PI4 + CW ID + carrier.

All the nominal frequencies remain the same. To decode PI4 tune your
receiver to 800 Hz below the nominal frequency, just like you do when you
want to decode a normal CW signal at 800 Hz.

PI4 is a digital modulation (MGM) specifically designed with beacons and
propagation studies in mind.

Download PI-RX to decode PI4: http://www.rudius.net/oz2m/ngnb/pi-rx

PI4 encoding examples in Arduino C, Atmel C, Delphi Pascal, Microsoft
Visual Basic and Microsoft C++: http://www.rudius.net/oz2m/ngnb/software.htm

PI4 online encoding and frequency calculation:
http://www.rudius.net/oz2m/ngnb/pi4encoding.php

PI4 specification: http://www.rudius.net/oz2m/ngnb/pi4.htm PI4 is a cousin
of JT4, JT9 and WSPR.

OZ7IGY status page: http://www.rudius.net/oz7igy

73
Bo, OZ2M

-- 
António Matias

CT1FFU - CR5A

www.dxpatrol.com

QRV: HF, 6m, 4m,2m,70cm,23cm
SSB, CW, MGM
DX, EME, Contest,Sat.

POBOX-38
2504-909
Caldas da Rainha
Portugal

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