>From ExperimentalRadio.News 12........High-power shortwave trading 10Band LLC received permission to modify its station WI2XNX, having “successfully conducted a market trial evaluating the use of high-frequency (HF) spectrum for the delivery of financial market data to external trial participants,” the company said.
The modification will facilitate “evaluating the performance of upgraded transmission infrastructure, including the deployment of more directional antennas and higher-power transmitters, aimed at improving signal fidelity and reach; and designing and testing a next-generation radio platform optimized for encoding financial data, with the goal of ensuring reliable communication across a wider range of ionospheric conditions.” WI2XNX is authorized up to 385 kW ERP in nine HF bands at its Elburn IL and Humptulips <https://www.experimentalradio.news/r/22dbc917?m=ea97dc1a-0e30-4d55-af52-c3b114f8317c> WA stations. The license is “for experimental purpose only and does not permit commercial service or market access,” the FCC noted, in applying 16 conditions to the experiment. “Market trial testing is limited to up to 50 participants. ...This operation is not permitted for stock trading.” RCA Telecom has added a third transmission site to WO2XPY in West Chicago. It comprises a 10 kW amplifier, three Yagi antennas including this one <https://www.experimentalradio.news/r/512dfff8?m=ea97dc1a-0e30-4d55-af52-c3b114f8317c>, plus this <https://www.experimentalradio.news/r/f761aea8?m=ea97dc1a-0e30-4d55-af52-c3b114f8317c> log-periodic array. [image: West Chicago transmission site, November 2023] The West Chicago site of Vertical Bridge, November 2023. David Wilson photo. “Grant of this application will serve the public interest because it will allow RCA to determine maximum efficient use of HF spectrum as it works toward developing a system for commercial use,” the company told the FCC. (FCC rules do not permit commercial shortwave data transmission to foreign points. *The Commission is still chewing on a Shortwave Modernization Coalition petition to allocate some HF frequencies to this purpose. See ERN #9 <https://www.experimentalradio.news/r/fe4654c8?m=ea97dc1a-0e30-4d55-af52-c3b114f8317c>.)* WO2XPY is authorized to use 14 bands between 6 and 29 MHz. Running more than 246 kW ERP in 14.35‒14.99 MHz – just above the 20-meter Amateur Radio band – it is “not capable of transmitting station identification,” RCA told the FCC. The Commission waived the station ID rule <https://www.experimentalradio.news/r/ba16f2bc?m=ea97dc1a-0e30-4d55-af52-c3b114f8317c>, as it typically does on request.
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