ARLA/CLUSTER: Analise de sensibilidade entre o FM Analógico e o D-STAR .

[João Gonçalves Costa]

[http://tbn0.google.com/images?q=tbn:hrDP-qfm67QEGM:http://utahvhfs.org/dstar_baseband_s.gif]<http://images.google.pt/imgres?imgurl=http://utahvhfs.org/dstar_baseband_s.gif&imgrefurl=http://utahvhfs.org/dstar_channel_spacing.html&h=184&w=320&sz=9&hl=pt-PT&start=15&sig2=OjmWVeXCf_PiQvGn9OFYPA&tbnid=hrDP-qfm67QEGM:&tbnh=68&tbnw=118&ei=7p4pSKrRKqi-swKE7pyTCg&prev=/images%3Fq%3DN5RFX%26gbv%3D2%26hl%3Dpt-PT%26sa%3DG>[http://tbn0.google.com/images?q=tbn:SMJkxdgKUj6nMM:http://www.ares-mo.org/images/ARES-sm.gif]<http://images.google.pt/imgres?imgurl=http://www.ares-mo.org/images/ARES-sm.gif&imgrefurl=http://www.ares-mo.org/&h=102&w=102&sz=3&hl=pt-PT&start=25&sig2=EwD3rlzE7hmlqrC6PSR5Ww&tbnid=SMJkxdgKUj6nMM:&tbnh=83&tbnw=83&ei=LJ8pSJ-SGJ3GsgKmvaCVCg&prev=/images%3Fq%3DN5RFX%26start%3D20%26gbv%3D2%26ndsp%3D20%26hl%3Dpt-PT%26sa%3DN>[http://www.tapr.org/images/brian.neill.ve3bpn.2a.sm2.jpg]
D-STAR in PSR Journal

The Spring issue of the PSR journal features an article on  D-STAR sensitivity by Mark Miller, N5RFX.

The article concludes that D-STAR trades 2 dB of sensitivity for a 17dB increase in nearly noise free reception over analog FM.

However, when weak signal reception is necessary, the analog signal will provide better performance.

The Spring PSR journal can be seen at ftp://ftp.tapr.org/psr/psr105.pdf

Tuscon Amateur Radio Packet group (TAPR) http://www.tapr.org/
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