- A new perspective for how radio wave photons are generated by an antenna.
- Provable technology for high speed digital communications of 1Mbit/sec in the HF bands.
- Users group, join us for internet meetings or study at our beachside radio-resort in Japan.
Summary
- AK4VO discovered how to generate pulses of photons instead of continuous waves via direct current activation of non-resonant antennas. This allows mbit/second digital communications over the HF bands.
- We can transmit bits at 800k bit/second in the 80 meter band at very low bandwidth. Our technology also can improve the clarity and speed of CW.
- We can provide circuit boards and kits for HF ham bands and are looking for collaborators. Our 20-watt transmitter board transmits a programmable 128 bit message at 5, 10, 50 or 100 sine cycles per bit.
- Please join our user’s group and fill out a questionnaire letting us know what kind of digital transmitter and receiver that you would like to see developed. Let`s interface a little bit with your computer!
- Take a look at our publications, in hard copies here and also available at photonradio.com. Introduce yourself and tell us your arguments and objections.
GOAL:
Exploit our new high speed (200-800kbit/sec) digital communication system for the amateur radio 160 M band. The system then can be copied into a digital replacement for the AM broadcast band. This would allow rapid real time download of weather maps, road conditions, and high quality stereo over AM broadcast band frequencies into automobiles from local broadcast stations.
Outline:
We can transmit digital (on/off pulses of 5-10 sine waves per bit) at 2MHz frequency without modulation. The receiver detects these high speed bits via a zero crossing detector. Each sine wave is converted into a computer readable transistor logic (TTL) pulse. By minimizing resonance and avoiding modulation, we avoid sidebands.
Existing technology:
Our existing 25 watt transmitter can broadcast to our receiver between 2-11MHz frequency at more than 1mbit data rate. Our receiver data show detection of 5 sine cycle long bits as logic pulses ready to input into a computer.
We need:
Computer engineer help to input high speed data from a parallel or serial buffer of the radio into a computer and for analysis-conversion into pdf files and audio streams. Also we need to increase transmitter power and receiver flexibility. Most importantly, we need people willing to build a non-resonant antenna and start using the technique.
Hardware challenges:
Develop convenient ferrite antenna tuning that provides a low impedance as the first stage of the radio. We are using non-resonant 300 ohm antennas now but a low resonant (low Q) ferrite antenna should work to receive sine waves of a signal without too much distortion due to resonance.
Develop high power linear transmitter of high efficiency for low frequencies. To avoid resonance (ie. repetitious collapse of the wave function and smearing of bits) the transmitter must output high voltage into a non-resonant antenna at natural impedance of about 377 ohms.
Receiver challenges: we need to test out new antennas and new receiving circuits. On the other hand, a simple receiver I real doable for a system that provides only local weather and traffic information from the closest broadcast station.
Prior Art
Energy such as light and radio can be treated both as a particle and a wave. A radio or light “wave” is merely photon particles arranged in contiguous rows. Despite the discovery of the particle nature of light/radio 100 years ago, electronics communication is limited to creation and detection of multiple contiguous waves and not individual pulses of photons. Communications are restricted by the 1920s invention that uses resonating circuits to group electron and energies into wave series and transmitting long trains as modulated carrier waves. That is, every “bit” in a digital radio or satellite transmission requires multiple waves of photons to encode it. Unfortunately, this causes extra time and extra bandwidth for encoding.