<div dir="ltr">Gary,<div><br></div><div>The least expensive (new) instrument I've seen that will do useful work is the Signal Hound USB-SA44B.</div><div>It has a decent dynamic range and the minimum RBW is 0.1 Hz . It retails for $919 USD.</div><div><br></div><div>.<a href="https://www.signalhound.com/products/usb-sa44b/">https://www.signalhound.com/products/usb-sa44b/</a></div><div><br></div><div>There are tradeoffs with these kinds of instruments over traditional ones, sweep time</div><div>when using large bandwidths is one. On the plus side, though that instrument does have I/Q</div><div>output at up to 240 kHZ bandwidth and the software includes AM/FM/SSB/CW demodulators.</div><div><br></div><div>HTH,</div><div>Jim N7CXI</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Oct 28, 2014 at 11:21 AM, Jim Barber <span dir="ltr"><<a href="mailto:barberaudio@gmail.com" target="_blank">barberaudio@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Another caution is that the spec sheet for the TSA4G1 (4 gHz version)<div>shows a minimum RBW (resolution bandwidth) of 100 kHz. For my uses at least</div><div>that isn't nearly small enough - 100 Hz would be more like it. As an example, the</div><div>very inexpensive Rigol DSA815 has a RBW of 100 Hz. ($1295 USD without a</div><div>tracking generator, $1495 with)</div><div><br></div><div><br></div><div>YMMV,</div><div>Jim N7CXI</div><div><br></div><div><br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote"><span class="">On Tue, Oct 28, 2014 at 10:55 AM, Greg Clark <span dir="ltr"><<a href="mailto:greg@bigredbee.com" target="_blank">greg@bigredbee.com</a>></span> wrote:<br></span><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">***** High Performance Software Defined Radio Discussion List *****<br>
<br>
<br></span><div dir="ltr">Does anyone know if a similar product that goes up to about 1Ghz that might cost less? I don't need all the way to 4 Ghz<div><br></div><div>Greg K7RKT</div></div><div class="gmail_extra"><br><div class="gmail_quote"><span class="">On Tue, Oct 28, 2014 at 10:51 AM, Jose V. Gavila <span dir="ltr"><<a href="mailto:eb5agv@amsat.org" target="_blank">eb5agv@amsat.org</a>></span> wrote:<br></span><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class=""><span>***** High Performance Software Defined Radio Discussion List *****<br>
<br></span></span>
Try this:<br>
<br>
<a href="http://www.triarchytech.com/product.html" target="_blank">http://www.triarchytech.com/<u></u>product.html</a><br>
<br>
Regards,<br>
<br>
JOSE<br>
<br>
El 28/10/2014 17:23, John C. Westmoreland, P.E. escribió:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class=""><span>
***** High Performance Software Defined Radio Discussion List *****<br>
<br>
<br>
<br></span></span>
Hello Helmut,<br>
<br>
I am getting a URL not found error here. Can you check the URL?<br>
<br>
73's,<br>
John<br>
AJ6BC<span class=""><span><br>
<br>
<br>
On Tue, Oct 28, 2014 at 9:20 AM, Helmut <<a href="mailto:dc6ny@gmx.de" target="_blank">dc6ny@gmx.de</a><br>
<mailto:<a href="mailto:dc6ny@gmx.de" target="_blank">dc6ny@gmx.de</a>>> wrote:<br>
<br>
***** High Performance Software Defined Radio Discussion List *****<br>
<br>
<br></span></span>
<a href="http://www.triarchytech.com/product.htmlaunched" target="_blank">http://www.triarchytech.com/<u></u>product.htmlaunched</a> a series of Spectrum<br>
Analyzers that fit in a USB stick. The 1 MHz up to 8.15 GHz<br>
remoteable sticks provide a signal range from -110 to + 30 dBm. Due<br>
to a reasonable pricing these devices are affordable for hams and<br>
‘home-brewers’.____<br>
<br>
__ __<br>
<br>
73, Helmut, DC6NY____<span><font color="#888888"><br>
</font></span></blockquote><span><font color="#888888">
<br>
<br>
-- <br>
73 EB5AGV - JOSE V. GAVILA - La Canyada - Valencia (SPAIN)<br>
<a href="http://agvradio.com" target="_blank">http://agvradio.com</a> AGVradio<br>
<a href="http://jvgavila.com" target="_blank">http://jvgavila.com</a> Personal WEB<br>
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