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Messages - Kuerno

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1
Free Radio Forum / Re: Spiffy Pirate Radio Documentary
« on: November 30, 2010, 11:59:16 PM »
This is one of the better documentaries I have seen.  There was another one on Free Speech TV a couple years back I have on DVD somewhere here.

There was quite a bit of coverage on the WTO and the Battle-4-Seattle that others may get bored with, however since I was following things very closely and streaming from the indymedia site at the time I found it very interesting.

The other aspect I really liked was the straight scoop on the farce put forth by the FCC known as LPFM.  Now once again they are leading folks on for some pipe-dream of licensed LPAM (not Part 15).  The FCC seems to drag this on hoping people will just hold on a little longer and stay within the system.  If they do ever accept a new LPAM proposal it will probably look more like the LPFM crap that they put forth while they practically pulled their arms out of socket patting themselves on the back for a service that did little to nothing for micro broadcasters or to diversify the voices on the FM band.

When I see those punks at NAB it makes me want to put a little more effort into the local micro scene here in Utah.  It just gets discouraging when the biggest-best micros get pulled off the air.

Anyway, the doc was so good I think I will try to see if I can embed into to my blog.  Thanks for posting.
 

2
Free Radio Forum / Re: Being a good radio neighbor!
« on: November 30, 2010, 11:33:31 PM »
Would TV interference really happen that much now that DTV has arrived?

You may thank the federal government for imposing digital TV, which is less robust than analog, on people by the way.

As a matter of fact..even more so. Why? Because the transmission power level of digital television is as much as 1/2 less than an analog transmission.

If someone is operating a transmitter without proper filtering, the interference can easily cause someone's DTV receiver box or DTV ready television to simply freeze, or produce missing data chunks, which is seen on the screen as black pixel boxes or distorted pixel boxes.

DTV has the same transmission bandwidth as the analog system. Aprox. 6Mhz wide. In DTV...there is a "Pilot Carrier" at the low end of that 6Mhz bandwidth signal. The rest of the bandwidth is occupied by the data. It is in there where the video/audio/info is located.

Any signal interference within that 6Mhz chunk of spectrum will cause errors to the data stream being received, producing the effects stated above. Like trying to watch a video stream or audio stream on a bad internet connection with a lot of packet loss.

Filtering should be EVERY operator's priority!!! After all....it was careless operating practices and piss ass poor engineering practices that brought us our lovely friends called the FCC back in the hey day. Their primary goal was to "clean" the radio spectrum because so many radio experimenters were purposely causing interference or operating in worst case/bad taste ways.

There is a very neat tool that anyone can use to help aid in keeping their operations technically up to spec, and even exceeding those "big boys" signals. Its called "Google" and one could begin to clean up their signals by simply typing in "FM low pass filters" or "harmonic filters" or any other related keyword. Tons upon tons of plans, schematics, tips and do's and don't advice on the web. :)

RFB

FWIW - I personally have way less trouble with TVI now that things have gone digital.  Even with high power HF including upper HF 10&11 meters as well as my little FM micro I now have no trace of what I am doing on TV and that's in a TV "deep-Fringe" area with my DB4 mounted right underneath the ground radials of my A-99.

I also agree with Puke to some extent.  That was one of the reason I have dropped Oracle off my micro.  It's hard enough to stay on the air, I don't need help pissing off my neighbors with the never ending barrage of F-Bombs out here in the middle of Utah.

3
Free Radio Forum / A New Opertunity - High Profile Micro Radio
« on: November 30, 2010, 04:36:16 PM »
Having been around the Micro Movement for years and years. I am going to 'repost' a recent letter to some of the folks from the now off-the-air Liberty 1640 during some recent correspondence.  That station was being harassed over the ground conductor length of a measly 100mW Part 15 station.

Anyway this is an idea I have had floating around for quite some time.

Quote
You want to know what I think would work well, especially in larger cities?

An 802.11 WIFI style station.

Picture this, a MAX power Router or array including extended Routers or Access Points. I would need to double check but I think you are allowed upto 1 watt.

Then have NO gateway to the Internet and no connectivity to your personal machines.

Have the DNS given out at DHCP resolve ALL addresses to a single Server for YOUR Web-Page where you have YOUR favorite video Documentaries and ExposÚs hosted. You could also stream live local shows.

The benefits are cheap price, More exposure to younger folks than AM radio, no need for people to run a channel scan for TV. Also as of yet I have heard of NO FCC busts of WIFI stations even for excessive power.

Also by watching the MAC addresses you can get an idea of how many people are connecting to your server. That is cool because you could start very small with a router in your attic and test the concept.

Imagine, you would just always be there in the WIFI lists on Laptops, PCs and many new multi-media portable devices.

You could also "re-stream" radio shows or re-stream the entire radio networks like Oracle, RBN, Liberty News Radio or even GCN- When Alex isn't on...lol

Drawback?
The only thing I can think of is that people "may" be able to exploit the system to interconnect their gaming machines or transfer explicit files but I doubt anymore than they do with open hot-spots and networks already . I really doubt that would be a problem but you could always attach a linux firewall for cheap.

Think about it. A few well placed WIFI Router Antennas that would cover a city for not much more than a couple Rangemasters. If you know a decent webmaster to help you with a cool multimedia page to serve up the videos and audio streams to the public, you have it made.

Anyway I have had that Idea for a while but since I am so rural I have never pursued it. However I do see WIFI networks from over 3 miles away at my house and I'll bet those routers are sitting on someone's desk in their office :)

Just think when you put the router in your attic with about 20 feet of LMR-400 to a hygain antenna 15 feet above your roof (2-way linear amp optional) hehe.
 


4
Free Radio Forum / Re: Pirate shortwave.
« on: November 30, 2010, 04:29:29 PM »
HF SW "Micros" if you will is entirely possible.  Many of the old tube rigs were AM / CW only.  Old military xtals bought off ebay can by "ground down" to raise the freq with toothpaste on a piece of glass or lowered with a slight mark of a pencil.

Also look into "radio art" that popped up a few years back down in the Mojave desert where folks put up mini-micro SW stations that sent a single message in CW but with DVR technology anything could be sent including the URL for a website or a FAX or SSTV image.

The reason they mainly popped up in the SW and Mojave is the copious amounts of sun to keep batteries charged with very small solar cells.  Here is some discussion.

http://www.frn.net/vines/Forum4/HTML/003378.html

Another very easy possibility that would actually get an "interesting" talk show more listeners (IMO) than a pirate SW station would be a fairly strong CB station during "skip" (as they say) conditions.  During those conditions a 100 Watt station with a decent antenna..let's say in Keene NH could cover the entire West coast from the PNW to Baja and East as far as NM, UT, CO and Montana.  It would be up to the "broadcaster" as to how aggressive they would like to be.  For instance channel 19 is full of garbage anyway yet monitored even today by many truckers.  The signal from across the country during these favorable conditions would blanket the area in the west yet they could still talk to the folks in their caravan.   Having driven between LA and Utah many times I think I would have loved to have heard an interesting talk-show out in the middle of the desert.  However you could just as easy pick an non dedicated channel (not 19 or 9) and just allow people tunning through the channels to find your signal.









 

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