#voaradiogram

[ecstation9]

VOARADIOGRAM - GREENVILLE NC USA to BALTIMORE MARYLAND USA. Frequency 17580kHz AM Digital Text & Images in MFSK-32 & OLIVIA 64-2000. Received at 1600 GMT on 31 DEC 2016. Signal: SINPO 25323 with QRN and fading. Receiver: General Research of Electronics, Inc. (GRE), manufactured between 1969 to 1972 and sold through Radio Shack as the DX-150A covering 535-30000 kHz, Modes: AM/SSB-CW. Antenna: T3FD or Terminated 3-wire Folded Dipole at 15m (45ft) East/West. Decode with W1HKJ's AndFlmsg App and direct audio-coupling [next to the speaker] and using SAMSUNG Galaxy s5 Smartphone.

[ecstation9]

Two Atom Radio Receiver

This tiny radio has building blocks the size of two atoms. The radio is extremely resilient, thanks to the inherent strength of the diamond.

It is made from imperfections the size of two-atoms in a single piece of dimond crystal powered by a green laser (wires are impratical), then the crystal produces red light when radio waves are detected.

The output red light is received by a traditional photodiode converting it into current to power a speaker.

The team successfully played music at 350 °C — about 660 °F 

Credit: Harvard John A. Paulson School of Engineering and Applied Sciences

https://www.youtube.com/watch?v=aytf0Jk8YJ4

[ecstation9]

VOA RADIOGRAM ASCII ART 1600 GMT 17SEP2016 17580 kHz AM MFSK-32

[ecstation9]

VOA RADIOGRAM

Intermittent loss of VOA transmitter signal x3 17580 kHz VOARADIOGRAM broadcast on 17SEP2016 between 1600 - 1630 GMT.

[ecstation9]

Decoded MFSK-32 Text and Picture (165x118C) using FLDigi from the Mighty KBC Shortwave, 9925 kHz 07AUG2016, SINPO 55444. Tug building group Damen is exporting more tugboats to the USA ... bit.ly/2aHZ3IN

[ecstation9]

VOA Radiogram xmitter

It appears that the 1930 GMT 24JUL2016 VOA Radiogram transmitter went off the air twice in the beginning portion of program #173.  Everything returned to normal but after the second outage the signal strength was much improved.  

[ecstation9]

Loss of signal seen <horizontal band> on MFSK image decoding.  

[ecstation9]

Weekly VOA Radiogram

VOA Radiogram is a Voice of America program experimenting with digital text and images via shortwave broadcasting from their +50 year-old facilities at Greenville, NC.  Each week Dr. Kim Andrew Elliott produces a shortwave digital program, sending text and images, four-times each weekend (http://voaradiogram.net/). 

This type of digital HF transmission will also allow Hams and SWL enthusiasts an opportunity to utilize their digital mode software while improving their experience with a wide-band Ham transceiver or shortwave radio – via a microphone or direct audio connection - into their computer applications. 

This weekend’s program included a segment on the Ham Radio, Santa Net on 3916 kHz/ 75 meter Phone.  It includes both a topic covering the Santa Net and a link for more information plus an image via MFSK digital.

I regularly receive VOARADIOGRAM Program transmitted every Sunday on 15670 kHz, AM using MFSK-32 from Greenville NC; to our listening post using a vintage 1960’s Hallicrafter S-120 Shortwave Receiver with external LW antenna and a Laptop running W1HKJ’s FLDigi program.