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From: "qrv@kd4e.com" <qrv@kd4e.com>
Cc: Linux Hams <linux-hams@vger.kernel.org>,
	Ham-Linux <ham-linux@mailman.qth.net>
Subject: Re: [Ham-Linux] FreeDV (HF digital voice) for Ubuntu
Date: Sun, 09 Feb 2014 15:03:11 -0500	[thread overview]
Message-ID: <52F7DEFF.9070300@kd4e.com> (raw)
In-Reply-To: <1391966195.30458.139.camel@fourier>

FreeDV is a valuable addition of a new & non-proprietary tool for
Hams.

I listened to the recorded QSO and observed two of the three key
operating variables:

1.  Significant saving of spectrum for FreeDV vs analog SSB. (+)

2.  Significant FreeDV artifacts - muffled audio.  (-)

3.  Missing was an on-air comparison of SSB throughput in rough band
	condition and/or weak-signal performance vs FreeDV (The specs
	say "should be readable down to 2 dB S/N" but can you
	demonstrate the difference is real-world practice via another
	recording of a live QSO, please?

	Do you know if anyone has tested this with an Icom IC-7200
or IC-706MK2g?  If so, what have been determined to be the best rig
settings, please?  (That sort of data would be good to gather on your
Web site.)

Thanks for this contribution to our hobby!

73, David KD4E

> FreeDV ("HF Digital Voice for Radio Amateurs") -- http://freedv.org/ --
> is now available as an installable package for recent versions of
> Ubuntu[0].
>
> Many thanks to David Rowe and the rest of the upstream FreeDV team, and
> to A. Maitland Bottoms for the Debian package[1].
>
>
> The freedv package for Ubuntu is available from either of these PPA's:
>
>          Freedv PPA (and its prerequisites) only
>          https://launchpad.net/~kamalmostafa/+archive/freedv
>
>          Ubuntu Hams Updates PPA (many backported ham packages)
>          https://launchpad.net/~ubuntu-hams-updates/+archive/ppa
>
>
> 73 de KA6MAL
>
>   -Kamal



-- 

David (NOT Dave) Colburn, KD4E - Nevils, Georgia USA

Safe & Secure Search Engine: duckduckgo.com

Android for Hams: groups.yahoo.com/group/hamdroid
Creative Tech: groups.yahoo.com/group/ham-macguyver
Raspi Alternative: groups.yahoo.com/group/beagleboneblack/

Restored to design-spec at Heaven's gate 1Cor15:22

  reply	other threads:[~2014-02-09 20:03 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-09 17:16 FreeDV (HF digital voice) for Ubuntu Kamal Mostafa
2014-02-09 20:03 ` qrv [this message]
     [not found] ` <52f84609.ea42420a.06df.5e1c@mx.google.com>
2014-02-10 18:02   ` [Ubuntu-hams] " Joey STANFORD

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