>From - Sat Mar 02 00:57:16 2024
Received: by 10.35.88.17 with SMTP id q17mr880666pyl.1166714382938;
Thu, 21 Dec 2006 07:19:42 -0800 (PST)
Received: from 192.65.41.20 by a3g2000cwd.googlegroups.com with HTTP;
Thu, 21 Dec 2006 15:19:41 +0000 (UTC)
From: "Micky D" <diver...._at_yahoo.com>
To: "TSCM-L Professionals List" <TSCM-..._at_googlegroups.com>
Subject: Re: Tektronix Paper on Real-Time Spectrum Analyzers
Date: Thu, 21 Dec 2006 07:19:41 -0800
Message-ID: <1166714381.699928.76780_at_a3g2000cwd.googlegroups.com>
References: <7.0.1.0.2.20061219104810.062a9a70_at_tscm.com>
User-Agent: G2/1.0
X-HTTP-UserAgent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.1.4322; IEMB3; IEMB3),gzip(gfe),gzip(gfe)
X-HTTP-Via: 1.0 webproxy3.tek.com:8080 (squid/2.5.STABLE12)
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
On this "digital phosphor" technology, Tek has had it in their scopes
for a few years. Really helpful visual display technology. I attended
a recent webinar on the new technology in the product:
http://www.techonline.com/electronics_directory/499
Could really use one. Looks like a nice box.
MD
James M. Atkinson wrote:
> Here is a white paper on some of the new Real Time Spectrum Analyzers
> being offered by Tektronix.
>
> The paper is based on the DPX/RSA6100 series which they are pushing
> as a "digital phosphor" product. It is a good product (I have one),
> but you have to keep in mind that it is basically just a spectrum
> analyzer that digitizes within a narrow bandwidth of 30/40/50/110 MHz
> for a few seconds, then it re-tunes a down converter grabs another
> chunk of say 30 MHz, digitizes that, and then moves to the next area.
>
> This is fine if you already know what frequency the transmitter is
> operating on (say a cell phone), or if you can park the SA on a
> specific frequency of interested and watch it long term for a burst
> signal (ie: 433.9 MHz). If the signal appears over a wide frequency
> range you have a high probability of detecting it, and you have a
> good chance of catching it when the signal appears where you are
> expecting it, but in which the time period is unknown. However, if
> the frequency is unknown, and/or the time period is unknown the
> product will be very helpful, but the probability of detection will be low.
>
> The hottest use of these analyzers is to install a very fat chain of
> internal hard drives (Tek does not recommend this of course), and
> dumps the sampled spectrum into the hard drives. With a couple of
> minor (again not endorsed by Tek) modifications you can use an
> external array of hard drives to capture the raw data.
>
> List members will note that this instrument has digital I/Q output
> which allows you to offl-oad data right from the RF section, and
> there are provisions for an optical interface right into the A/D
> samplers similar to what Agilent does on the 3238 system so you can
> use an external computer to process the data instead of the internal
> CPU in the instrument. By off-loading the processing of the data you
> can leverage the superior horsepower of a multi-processor PC (ie: New
> 3 GHz quad processor, with huge amounts of RAM)
>
> Either way, it is an excellent tool for sweepers
>
> -jma
>
> ----------------------------------------------------------------------------------------------------
> World Class, Professional, Ethical, and Competent Bug Sweeps, and
> Wiretap Detection using Sophisticated Laboratory Grade Test Equipment.
> ----------------------------------------------------------------------------------------------------
> James M. Atkinson Phone: (978) 546-3803
> Granite Island Group Fax: (978) 546-9467
> 127 Eastern Avenue #291 Web: http://www.tscm.com/
> Gloucester, MA 01931-8008 E-mail: mailto:jm..._at_tscm.com
> ----------------------------------------------------------------------------------------------------
> We perform bug sweeps like it's a contact sport; we don't play fair, we
> take no prisoners, and we give no quarter. Our goal is to stop the spy.
> ----------------------------------------------------------------------------------------------------
>
>
> --=====================_120926046==_
> Content-Type: application/octet-stream
> Content-Transfer-Encoding: base64
> Content-Disposition: inline;
> filename="TekDPX-RTSA-37W_19638_1.pdf"
> X-Google-AttachSize: 825898
Received on Sat Mar 02 2024 - 00:57:16 CST