Radio amateur Charles Maynard KJ4PPE, CEO of HySky Technologies Inc., is using HF for an innovative asset tracking and reporting network
His company has recently gained an FCC license to use 954 HF channels each 3 kHz wide. The licence covers up to 10,000 devices operating in the United States, including Hawaii, Alaska and US Territories. A PowerPoint slide indicates possible plans for eventual global coverage.
The mobile tracking units will transmit a maximum of 1 watt ERP using a small low-efficiency broadband antenna and up to 15 watts transmitter output. The data will be received by nine receiving stations located in low-noise sites across the USA. The receiving stations will forward the data to the customer.
The signal being transmitted has a bandwidth of 2800 Hz and an emission designator of 2K80G1D. The company say a military HF waveform will be used, it is thought this may refer to MIL-STD-110B or STANAG-5066.
It appears that information from the Link Quality Analysis (LQA) Lookup Table, based on propagation data and channel noise floor levels from the nine receiving stations, may be sent to the mobile trackers by using the data services already provided by FM broadcast radio stations using a data sub-carrier.
The company claims the system will overcome coverage and other problems associated with traditional tracking devices using cell-phones or satellites.
Full article:
http://www.southgatearc.org/news/august2013/radio_ham_develops_hf_asset_tracking_network.htm?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+AmateurRadioNews+%28Southgate+Amateur+Radio+News%29#.UgORcuCQmz9FCC Records:
http://wireless2.fcc.gov/UlsApp/UlsSearch/license.jsp?licKey=1767248&__newWindow=falseThe 954! frequencies are listed on the FCC site. None on popular pirate frequencies in the US, the closest is 6882 kHz
Company website:
http://www.hysky.com/
Topic: Radio Ham develops HF asset tracking network (Read 969 times)