There are also these alternatives:
1. Spectran (freeware) which can be found at:
http://www.weaksignals.com/
Is also great for weak signal detection and modes like QRSS.
2. SR5 (which is now freeware as of Jan 1-05)at:
http://www.ar5.ndo.co.uk/
Not primarily a spedctrum analyzer but does have some user
defineable audio filtering where you can actually "draw" the
exact shape of a audio filter passband.
Duane
N9DG
--- Bob Henderson <bob@cytanet.com.cy> wrote:
> Bob
>
> Spectrogram is highly regarded, although later versions
> have limited
> functionality until you buy the product. Tom N0SS has the
> last fully
> functional Shareware version of the product available for
> download from his
> website. You can get it at
> http://www.n0ss.net/index.html#Spectrogram
>
> This is Spectrogram v5.17 which will do the job very well
> for you.
>
> Good luck.
>
> 73 Bob, 5B4AGN
>
> ----- Original Message -----
> From: "Robert Carroll" <rlcarroll@patmedia.net>
> To: <tentec@contesting.com>
> Sent: Sunday, January 16, 2005 1:20 PM
> Subject: [TenTec] Orion AGC Setup and Audio Spectrum
> Analyzers
>
>
> > At one of the sites discussing optimum setup of the Orion
> AGC for various
> > band conditions I saw a recommendation of taking a look
> at the audio out
> > using a software spectrum analyzer. A couple were
> recommended but were
> not
> > freeware. In the past while getting set up for PSK etc I
> came across
> > recommendations for good freeware or inexpensive
> shareware analyzers.
> Alas,
> > due to a computer death a few months back I lost the
> recommendations. Can
> > anyone point me to good ones that will run under Windows
> XP?
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