Low Power Radio on Amazon (Radio News is now at the bottom of the page - Hooray!)

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Low Power Radio on Amazon.com



Get on the Air with One Click, Buy a Transmitter Bundle from Amazon.com

Many hobbyists agree that the F-S variable power 0.1 to 0.5 W FM Transmitter is one of the best transmitters for the price.  Add the convenience of a selection of premium quality accessories and you can literally be on the air with a single click.
     No need to search the web for FM broadcast antenna, FM transmitter antenna plans or FM broadcast antenna diy, this great combo includes an F-S Electronics RangeBooster 2.0 Ground Plane Antenna. 
     Connect your antenna to the transmitter with your included ultra low-loss  (55.4 db/100m), 8 mm diameter,  rugged class 8D broadcasting cable and add your programming with the included 6 foot heavy duty stereo audio cable. 
     Necessary adapters are included, too - a simple and cost-effective solution to increase your range, minimize signal loss and maximize your broadcasting enjoyment.
     Peace of mind with the lifetime warranty.

Check out these reviews from real users:

• "All components of the bundle are high quality."

• "The Rangebooster antenna definitely extends the range"

• "Signal goes through brick-metal buildings and embankments as if they were not there"

• "The transmitter unit defaults to .1 watts which is how I've been using it."

• "I am able to get more range with the external antenna"

• "Set up was so easy. The sound quality was awesome. I love this transmitter!"

• "The transmitter works well given I am out in the 'bush' away from town"

• "Worked great right out of the box. Very pleased!!"

• "It is a very compact and easy to use transmitter with impressive stereo fidelity"


So quit wishing and waiting, quit struggling with inferior approaches and “Git er dun!”
Click below to order direct from Amazon.com
Bundle Deal #1: F-S 0.1 - 0.5 Watt Long Range FM Transmitter, RangeBooster 2.0 Professional Grade Antenna Kit, Broadcasting and Audio Cables ($300 value!), now only $179.96

Bundle Deal #2: 0.5 W Fail-Safe Long Range FM Transmitter FS CZH-05B + Rangemax 1.0 Antenna ($200 value!), now only $150.00
Bundle Deal #3: Fail-Safe 0.5 W Long Range FM Transmitter + 1/4 Wave GP Antenna Kit ($200 value!), now only $149.95
Power Blaster Bundle Deal #4: Fail-Safe RangeStud 15 WATT FM Transmitter + RangeMax Professional Grade Antenna ($400 value!), now only $345.95!

Low power AM circuits of James R Cunningham

100 milliWatt AM Transmitter Schematic
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10 Watt AM Transmitter Schematic
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3-12 Watt AM Tube Transmitter Schematic
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James Cunningham regularly published booklets of radio instructions, schematics and station plans, intended to help missionaries set up gospel radio stations.
     Titles included Low Power Radio Broadcasting and The Big Antenna Book
     At one point in time, James also manufactured and sold transmitters, carrier current load tuners and other assorted sundry hardware items.
     One surviving document tells the story of the Cunningham Transmitters Model CM 30 - 50, an AM transmitter manufactured for export.
     The low power AM transmitter schematics to the right all come from Low Power Radio Broadcasting, Missionary Edition.
     James passed away in 2005, as announced on his gospel radio MSN group, shown here in the Internet Archive.
     Many of the left menu links still connect to archived copies of other projects and information. For example the two-part series titled "Solving broadcast problems" discusses how to deal with the kinds of RF / audio chain problems common to low power broadcasting efforts.
    You'll find lots of interesting articles and comment on topics like carrier current, antenna tuning and general low power radio information.

Radio waves rediscovered, Tesla was right!

You might have already read that the sometimes maligned and often misappropriated legacy of the good Mr. Nikola Tesla received a positive jolt in the news.
     An enterprising group of baby entrepreneurs took a long-known radio hobbyist factoid, slapped on the unicorn start-up bromide 'patented' with an IPO-ready name and proclaimed themselves the master of a new energy source.
      First, here is the 'amazing' news story, from a more sober source that nicely identifies the underlying reality of this so-called new idea, circa 2015.

Freevolt Grabs Energy from the Air

"The Freevolt captures ambient RF waves and converts them to DC electricity. Very low power devices can run exclusively on the energy extracted by the Freevolt... This is ideal for remote applications like smart sensors on bridges or buildings, and for home safety products such as smoke detectors and security sensors."
     Perhaps the Freevolt team was reading this article on the up and down Rex Research, back in 2011.

Manos Tentzeris' Ambient Energy Antenna

"Researchers have discovered a way to capture and harness energy transmitted by such sources as radio and television transmitters, cell phone networks and satellite communications systems. By scavenging this ambient energy from the air around us, the technique could provide a new way to power networks of wireless sensors, microprocessors and communications chips."
     Or, maybe they were inspired by this article, also courtesy of Rex Research, back in 1989

Joe Tate's Amazing Ambient Power Module

"The Ambient Power Module (APM) is a simple electronic circuit which, when connected to antenna and earth ground, will deliver low voltage up to several milliwatts. The amount of voltage and power will be determined by local radio noise levels and antenna dimensions"
     Whether "Free," "Amazing" or simply "APM," the current excitement confirms the veracity of the 36 Chinese Strategems, specifically, "Take something old, bring it to the present day and call it your own."

      Once again, Tesla is proven to be ahead of his time - he only needed to live long enough for our 'through thin air' power transmission requirements to drop down to the milliamp level. Freevolt is an exciting development but far from new.

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