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The Free Talk Live BBS
Profile of NuroSlam
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Pages: 1 [2]
16
Free Radio Forum / How about pirate radio in the white spaces?
« on: December 28, 2008, 11:42:33 AM »
-- snip --
I will do a longer tirade about white spaces in a few days. For now I want to reprint a letter I got from Stephen Dunifer, a spectrum radical and promoter of free radio. For now, lets think about public interest. Notice that the lower VHF band, the TV channels 2 through 6 are now sort of unloved. The phone and data companies thought they could rip these frequencies from the broadcasters, but then they realized the low frequencies require a large antenna that would make them useless for high-dollar mobile service. It turns out that there is an actual public service proposal on the table. It does not come from any high-dollar multinational corporation. It comes from Stephan Dunifer, a Berkeley radical and proponent of free radio, disparagingly called pirate radio by many people. Stephen wrote me:
-- snip --
http://www.edn.com/blog/1700000170/post/60038406.html
I will do a longer tirade about white spaces in a few days. For now I want to reprint a letter I got from Stephen Dunifer, a spectrum radical and promoter of free radio. For now, lets think about public interest. Notice that the lower VHF band, the TV channels 2 through 6 are now sort of unloved. The phone and data companies thought they could rip these frequencies from the broadcasters, but then they realized the low frequencies require a large antenna that would make them useless for high-dollar mobile service. It turns out that there is an actual public service proposal on the table. It does not come from any high-dollar multinational corporation. It comes from Stephan Dunifer, a Berkeley radical and proponent of free radio, disparagingly called pirate radio by many people. Stephen wrote me:
-- snip --
http://www.edn.com/blog/1700000170/post/60038406.html
17
Free Radio Forum / Books to chek out
« on: December 24, 2008, 08:50:14 PM »
List any books of interest here
Pirate radio and video projects
http://search.barnesandnoble.com/Pirate-Radio-and-Video/Newton-C-Braga/e/9780750673310/?itm=68
Pirate radio and video projects
http://search.barnesandnoble.com/Pirate-Radio-and-Video/Newton-C-Braga/e/9780750673310/?itm=68
18
Free Radio Forum / Part 15 Stations - LowPowerTV - For those with balls
« on: December 22, 2008, 08:22:48 AM »19
Free Radio Forum / Part 15 Stations - LowPowerFM - So easy even a girl can build it
« on: December 22, 2008, 07:56:05 AM »20
Free Radio Forum / Part 15 Stations - LowPowerAM - So easy even a girl can build it
« on: December 20, 2008, 01:02:09 PM »
Heres a poor mans low power am voice transmitter
--insert--
"Depending on the antenna, the transmitter can send voice and music across the room, or across the street.
I put together my first version with simple clip leads (no soldering, no printed circuit board, not even a battery clip). This version is much sturdier and convenient. "
http://sci-toys.com/scitoys/scitoys/radio/am_transmitter.html
--insert--
"Depending on the antenna, the transmitter can send voice and music across the room, or across the street.
I put together my first version with simple clip leads (no soldering, no printed circuit board, not even a battery clip). This version is much sturdier and convenient. "
http://sci-toys.com/scitoys/scitoys/radio/am_transmitter.html
21
Free Radio Forum / Part 15 Stations - Antenna's
« on: December 20, 2008, 12:56:07 PM »
Heres a little bit of info on vertical antennas for anyone wanting to put up a "Part 15" station
--insert--
"I found out "why not" the hard way. After assembling and mounting my vertical, I put it on the air and was underwhelmed by its performance. So I began educating myself about verticals and discovered the wonderful world of radials and counterpoise.
I did not have much space for a radial system in the backyard of my family's 50 × 100 foot city lot. I did what I could within those confines and managed to improve the performance of the vertical. It served as my primary HF antenna for years until I received a hand-me-down 55 foot tower, but that is another story.
I like vertical antennas, but they are not for everyone. If you are considering a vertical antenna, do some research. The ARRL Web site has articles that cover verticals on its How Antennas Work page and its Vertical Antenna page. The WC7I Web site provides simple Vertical Antenna Theory and also has the lowdown on Underground Radials. There is also an online Amateur Vertical Antenna Calculator on the CSGNetwork Web site that also includes a vast array of other free online calculators, converters and tools related -- and unrelated -- to Amateur Radio.
Until next time, keep on surfin'!"
http://www.arrl.org/news/features/2008/12/12/10502/?nc=1
--insert--
"I found out "why not" the hard way. After assembling and mounting my vertical, I put it on the air and was underwhelmed by its performance. So I began educating myself about verticals and discovered the wonderful world of radials and counterpoise.
I did not have much space for a radial system in the backyard of my family's 50 × 100 foot city lot. I did what I could within those confines and managed to improve the performance of the vertical. It served as my primary HF antenna for years until I received a hand-me-down 55 foot tower, but that is another story.
I like vertical antennas, but they are not for everyone. If you are considering a vertical antenna, do some research. The ARRL Web site has articles that cover verticals on its How Antennas Work page and its Vertical Antenna page. The WC7I Web site provides simple Vertical Antenna Theory and also has the lowdown on Underground Radials. There is also an online Amateur Vertical Antenna Calculator on the CSGNetwork Web site that also includes a vast array of other free online calculators, converters and tools related -- and unrelated -- to Amateur Radio.
Until next time, keep on surfin'!"
http://www.arrl.org/news/features/2008/12/12/10502/?nc=1
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