Amateur Radio News 10 2019

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Amateur Radio Stories:

Here is a recap of what happened in the web this week, through the eyes of the DXZone and other ham radio sources on the web.

Top Amateur Radio Websites – Issue 1906

Top Amateur Radio Websites – Issue 1905

CQ WW 160 Meter Contest

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CQ World Wide 160-Meter Contest

The contest consists of two separate events. The CW mode is held the final full weekend of January. The Phone mode is held the final full weekend of February.

Contest Dates and Quick Contest Information

CW:
2200Z January 25 – 2200Z January 27, 2019

SSB:
2200Z February 22 – 2200Z February 24, 2019

OBJECTIVE:

For amateurs around the world to contact other amateurs in as many U.S. states, Canadian provinces, and countries as possible utilizing the 160 meter band.

BAND USE:

1810–2000 kHz in ITU Region 1. 1800–2000 kHz in ITU Regions 2 and 3. All entrants are encouraged to spread out as much as possible, obeying frequency restrictions and power limits for their own country. Any violations of the ITU band use may result in disqualification.

EXCHANGE:

RS(T) and state for U.S., province for Canada, and CQ Zone for DX. Note: Zones are location indicators only and do not count for multipliers.

DEADLINES FOR LOG SUBMISSIONS ARE 5 DAYS!

Please read full CQWW 160m Contest Rules

Entry Statistics

Amateur Radio News 08 2019

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Amateur Radio Stories:

Here is a recap of what happened in the web this week, through the eyes of the DXZone and other ham radio sources on the web.

Top Amateur Radio Websites – Issue 1904

Bitcoin Sent Through Amateur Radio 40 Meters Band

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Bitcoin transmission done on 7MHz using JS8Call

During  a recent experiment, has been demonstrated that is possibile to transfer Bitcoin without the use of the internet.

This has been made possible by implementing a digital data trasmission through the airwaves  using an amateur radio application named JS8Call on the amateur radio band of 40 meters, corresponding to the 7 MHz.

Why Bitcoin over Radio ?

Due to some governaments interferences that are already obstacling in some countries the cryptocurrencies diffusion, developers are constantly looking to transfer Bitcoins with alternative ways.

This is not the only experiment, and is not the only bitcoin transmission over radio. In Finland bitcoins are transferred via radio using the DVB-T network.

In the recent past there have been conducted several tests using mesh network (Mesh networks are a type of computer network where nodes communicate directly with each other, in a peer-to-peer fashion) or even via satellite, but this time it has been used a communicaton method that, by definition, does not rely on third parties:  amateur radio.

Amateur Radio HF communications, unlike commercial systems, is independent of terrestrial facilities and permit real time long distance contacts even cross-border.

The Expeiment has begun when Novak replied to a tweet asking:

“Has anyone used Ham radio to propagate Bitcoin blocks? Keen on exploring mesh networks that span across borders.”

The experiment succeeded by transmitting a bitcoin transaction fromToronto (Canada) to Michigan (USA) using the band of 7 MHz, currently allocated to the Amateur Radio Service.

bitcoin ham radio

As wallet has been used a brain wallet. Brain wallets are cryptocurrency wallets that allow users to receive virtual currencies but storing the seed phrase just in users’ heads.

Read more

Is this legal ?

ITU LogoIt’s important to remember that the usage of amateur radio equipment and frequencies is restricted to certified amateur radio operators only and  content of transmission should be related to amateur radio only as clearly stated by ITU in Article 25 Section I, on definition of amateur radio service:

“Transmissions between amateur stations of different countries shall be limited to communications incidental to the purposes of the amateur service, as defined in No. 1.56 and to remarks of a personal character”

Learn more about what is amateur radio or ham radio

FDM-S2 SDR Receiver by ELAD

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Elad LogoDirect sampling receiver based on 122.88MHz 16bit single channel ADC converter covering HF 6m and offering the possbility to exploiting the undersamplig mode covering FM Broadcasting Band and exploring part of VHF Band (135-160)MHz.

ELAD FDM-S2 Ranges and specs:

  • HF: 9kHz-52MHz MDS: -132dBm @14MHz, Clipping lev -8dBm
  • FM: 74-108MHz sensitivity <2uV 12dB SINAD @98MHz, Clip lev -3dBm
  • VHF: 135-160MHz MDS -137dBm @145MHz, Clipping level -19dBm
  • Separate antenna inputs for HF/6m and FM/VHF/Bypass ranges
  • Max. DDC Bw 6144kHz (Aliasing free viewable bandwidth up to 5 Megahertz)

Currently available selectable bitstreams:
192ksps-32bit, 384ksps-32bit, 768ksps-32bit, 1536ksps-32bit, 3072ksps-32bit, 6144ksps-16bit

Special double DDC mode of 2 x 384kHz bandwidth to be placed within one of the input ranges.

4 virtual receivers freely tunable within DDC window

Each virtual receiver holds settings for mode,bandwidth,volume,squelch and audio output routing.

ELAD S2Patent pending Triple Tuning Bar for coarse and fine spectrum navigation

CWU,CWL,USB,LSB,AM,SAM,FM,WFM,DSB,RTTY,DRM,RDS modes

Interference rejection: Noise Blanker,Adaptive Noise Reduction and auto notch, special 2 manual notches (directly placed in DDC spectrum)

Integrated DRM decoding, text and station schedule update.

Integrated WFM Stereo with RDS decoding.

Universal CAT control and  OmniRig(tm) integration

Customizable IF panadapter facilities for integration with existing transceiver/receivers

User definable bandplan, specified settings per frequency range.

XML based memory management

DX cluster data integration and EIBI database import

Plotting of memory, database and cluster information directly on spectrum screen

Proprietary Ext IO bus for accessory equipment, also offering 8 DC lines for universal switching (*via SFE1.0 board)

Supported by 3rd party software: SDR-RadioV2 , Winrad, HDSDR, Studio 1

DDC Spectrum recorder with automated timeschedule control

Seperate IF/AF spectrum windows for detailed signal analysis

Easy, fully informative User Interface with deep customization

Resizable windows and multi-monitor support

Wideband secondary Audio/IF outputs for decoder software (eg CW Skimmer,WeatherFax)

Full integration of the Tmate(tm) series controllers

Compact size 110 (W) x 90 (D) x 40 (H) mm and 360g, come with 2 BNC to SMA adapters, USB cable, USB double cable adapter, CD and safe bag.

 

ELAD S2-rear
ELAD S2-rear
ELAD S2 DSP
DSP Unit

ELAD S2 Software

Some ELAD S2 Videos on Youtube

Amateur Radio News 07 2019

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Amateur Radio Stories:

Here is a recap of what happened in the web this week, through the eyes of the DXZone and other ham radio sources on the web.

Top Amateur Radio Websites – Issue 1903