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What happens without Real Radio Engineers in the FCC




 
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Author Topic: What happens without Real Radio Engineers in the FCC  (Read 6871 times)
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KB3DKS
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« on: April 07, 2011, 03:29:41 AM »

Check out the latest Wireless system. Placed right next to the GPS Frequencies.
This link is about the most add free site that I could find with the story.
http://www.rcuniverse.com/forum/m_10446538/anchors_10446538/mpage_1/key_/anchor/tm.htm#10446538

Bill
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N0WVA
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« Reply #1 on: April 07, 2011, 05:02:43 AM »

The whole system is incompetent. The FCC exists only to auction off spectrum.
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W7TFO
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IN A TRIODE NO ONE CAN HEAR YOUR SCREEN


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« Reply #2 on: April 07, 2011, 11:28:22 AM »

Yep, it was a cadre of engineers and scientists, now just a bunch of money-grubbing hucksters pushing anything resembling real radio off on to the few overworked field ops. Tongue

73DG
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WA1GFZ
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« Reply #3 on: April 07, 2011, 12:07:10 PM »

same problem as not having real Americans in congress
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k4kyv
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Don
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« Reply #4 on: April 07, 2011, 12:46:27 PM »

This story has been in widespread circulation on the internet for several weeks now, but I have seen or heard absolutely nothing about it in mainstream media (radio, TV, newspapers).

Where is all the rf exposure paranoia? You would think by now there would be riots in the streets by concerned environmentalists.  Those things are supposed to eventually be spead all over the country with thousands of transmitters radiating up to 20 KW of power on microwave frequencies, in residential areas no less. People (including the FCC) have shown so much concern over the alleged cancer-causing hazard from minuscule levels of radiation from hand-held cell phones, and the RF fields emanating from ham and broadcast transmitters (not to mention Pave Paws), so where is the protest over this?
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Don, K4KYV                                       AMI#5
Licensed since 1959 and not happy to be back on AM...    Never got off AM in the first place.

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KB3DKS
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« Reply #5 on: April 07, 2011, 01:40:02 PM »

  The story is starting to hit local media now since it appeared in cropped form in a local newspaper. But the average person has no idea of the implications. The ecophools may pick up on it but won't hold my breath.
 It is really just bad engineering planning since there is enough spectrum to available
to keep a good distance away from interference.
 This reminds me of a situation a tech friend had early in the wireless internet business. He was working for a small ISP that was providing high speed internet in a small town that included a local college. The service was based entirely on low power, a couple watts, repeating spread spectrum units. There is a Federal prison at one end of town and the Natl. Guard Armory at the south end. Due to some "special" prisoners and probably as an experiment there was a high power microwave link set up between the prison and the armory that was active just next to the wireless internet frequency band. I could see it on a spectrum analyser.
  It was not a problem with spurs but it was due to the somewhat wideband nature of the spread spectrum transceivers and the very high signal strength of the nearby link overloading the radios. The prison officials denied that there was any such system in operation and it took pressure from a local Congressman who lost his internet service to finally get the link frequency moved further away. But by that time the small ISP provider had folded due to the failure of the system.
  The very idea that the government OWNS and can auction off the radio spectrum is wrong! Next it will be the air we breath.

Bill
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flintstone mop
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« Reply #6 on: April 07, 2011, 01:56:53 PM »

I would think with the recent radiation news from JApan that there would be a renewed awareness of this even greater risk of high power microwave....................

There were cases of increased cancer cases in a USA embassy somewhere in Russia......Cold war years............where we discovered there was a high power microwave dish , 20 footer, pointing right at the building. It was several blocks away IIRC..................any truth to that???


This was copy paste from:
http://blockyourid.com/~gbpprorg/mil/inter/index.html

Since the late 1940s, the U.S. embassy in Moscow has been under a constant barrage of high-powered microwave energy.  Conspiracy theories aside, the idea is that audio within a target embassy office will cause various nearby items to "vibrate," and any reflected microwave energy will also become modulated with this audio.  The surveillance receiver is essentially phase demodulating the Doppler shifts induced onto the microwave signal by the slight physical motion of these objects.  It works by mixing the received RF signal with a portion of the transmitted signal and greatly amplifying the final output.  Modern devices of this type, operating at millimeter wavelengths in the 60+ GHz range, can literally fit in the palm of your hand.  Information on their operation (and manufactures) leaks in from the "black" world when you study remote heartbeat monitoring equipment.  One advantage to using millimeter wavelength microwave energy is the very narrow beamwidth (and high ERP) you can obtain.  This will allow you to sweep the target location for any audio "sweetspots."

Fred
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Fred KC4MOP
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« Reply #7 on: April 07, 2011, 10:57:02 PM »

" There were cases of increased cancer cases in a USA embassy somewhere in Russia......Cold war years............where we discovered there was a high power microwave dish , 20 footer, pointing right at the building. It was several blocks away IIRC..................any truth to that??? '

Yea aih. They were bouncing the micro waves off of the embass e windows to overhear conversations.... then thair's  Theremin's Great Seal..... ..

klc

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What? Me worry?
K5WLF
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« Reply #8 on: April 07, 2011, 11:56:13 PM »

I was reading one of the aviation forums yesterday and according to that article, the Funky Candy Company has said that they won't allow LightSquared to go live with their system unless they can show that it will not interfere with existing GPS receivers.

The aviation community is understandably worried about the issue and mostly nobody believes the feds in this instance and with good reason. They haven't really proven themselves to be good at anything except selling off spectrum in several years.

Best case scenario: The LightSquared system really doesn't interfere with GPS and life is good.

Worst case scenario: The LightSquared system totally banjaxxes the GPS system, the eejits at the FCC approve it anyway and everybody has to buy new GPS units at an inflated price.

Probable scenario: Some sucky compromise in between that doesn't work worth a damn for anyone in any configuration and pleases nobody. The FCC announces their latest success.
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k4kyv
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Don
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« Reply #9 on: April 08, 2011, 12:20:52 AM »

the idea is that audio within a target embassy office will cause various nearby items to "vibrate," and any reflected microwave energy will also become modulated with this audio.  The surveillance receiver is essentially phase demodulating the Doppler shifts induced onto the microwave signal by the slight physical motion of these objects.  It works by mixing the received RF signal with a portion of the transmitted signal and greatly amplifying the final output

The version of the story I heard was that they used a beam of light, eventually generated by a laser, that targeted glass windows, and the reflected beam was easily demodulated to recover sounds in the room.  The window served as a giant microphone diaphragm.
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Don, K4KYV                                       AMI#5
Licensed since 1959 and not happy to be back on AM...    Never got off AM in the first place.

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This message was typed using the DVORAK keyboard layout.
http://www.mwbrooks.com/dvorak
K1DEU
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« Reply #10 on: April 08, 2011, 12:28:03 AM »

   Anything should be safer than Ana Chapman dating famous American politicians around the Connecticut and NYC area ! John, K1DEU
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