Tech Support > Computers & Technology > Internet & Broadband > Re: Netgear Router Semi Failure info
Re: Netgear Router Semi Failure info
Posted by Mike on April 23rd, 2005


Jonah wrote:

It would appear that you have suffered a common problem in that
wireless routers are apparently susceptible to electrical storm
damage. http://tinyurl.com/95f6t

Indeed.

Posted by Jeff Liebermann on April 23rd, 2005


On Sat, 23 Apr 2005 07:29:31 +0100, Mike <look@reply.to> wrote:

Where did you find an oscilloscope that works to 2.4Ghz and measures
power output in milliwatts?


--
Jeff Liebermann jeffl@comix.santa-cruz.ca.us
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 AE6KS 831-336-2558

Posted by oO on April 23rd, 2005



"Jeff Liebermann" <jeffl@comix.santa-cruz.ca.us> wrote in message
news:97rk61hi9uivh8jnj0fki7vcag6v7gst9b@4ax.com...
down the back of the sofa



Posted by NBT on April 23rd, 2005


Jeff Liebermann wrote:
Agilent 54854A with a MATLAB package.

Posted by Jeff Liebermann on April 23rd, 2005


On Sat, 23 Apr 2005 18:15:16 +0100, NBT <invalid@invalid.invalid>
wrote:

4 channels and 4GHz of bandwidth and starting prices at only $42,000.
Yeah, that will sorta work.
| http://www.agilent.com/about/newsroo...4feb2003a.html
The think the Infinium service mark is in reference to the price
instead of the product. However, none of the associated applications
specific software modules seem to have anything to do with RF.
Mostly, they're wired datacomm performance and optimization packages.
It's easy enough to calculate the output power of a spread spectrum
signal on a spectrum analyzer, but this is a "scope", which is not so
easy. Maybe he meant spectrum analyzer[1].

Probably something more specific to 802.11 would be more helpful:
| http://www.home.agilent.com/cgi-bin/...OUNTRY_CODE=US
However, we would then miss out on the "scope".

[1] A common error when measuring spread spectrum power on a spectrum
analyzer is forgetting to add the decorrelated power output to the
observed peak signal level. If the measured power output on the
spectrum analyzer is 0dBm, the observed bandwidth of the signal is
26Mhz, and the IF bandwidth of the SA is 1MHz, then the total power
output is:
0dBm + 10 log (26/1) = 0dBm + 14dB = +14dBm
I suspect this might explain the difference in measured versus
anticipated output.


--
Jeff Liebermann jeffl@comix.santa-cruz.ca.us
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 AE6KS 831-336-2558

Posted by NBT on April 23rd, 2005



"Jeff Liebermann" <jeffl@comix.santa-cruz.ca.us> wrote in message
newsi4l619n1a8b9pr198bt9106n7ui93ep72@4ax.com...
8><............................................... .....................
I would still need a "Sugar Mammy"

E4402B-COM ESA-E Communication Test Analyzer, 9 kHz to 3.0 GHz From
US$21,631
E4404B-COM ESA-E Communication Test Analyzer, 9 kHz to 6.7 GHz From
US$28,778

8><............................................... ..............


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