The AH1A Saga – Pacific Expedition to Howland and Baker IslandWatch this video on YouTube An international team of radio amateurs and scientists travels by schooner to remote and barren Howland Island and is stranded for a week due to high surf. A planned 9 day visit was extended to 15 days. Howland Island is…
The technical specification for NXDN™, a FDMA digital voice technology supported by ICOM and Kenwood, is being opened to the public domain. For the past 5 years both ICOM and Kenwood have been producing VHF/UHF mobiles, handhelds and repeaters to the NXDN™ standard. The equipment has a transmitted bandwidth of 4.0 kHz and is typically…
One of my favorite ham radio activities is making contacts on satellites. It’s really fun to know that you’re controlling something that’s receiving and sending communications from space. But communicating with satellites means carrying a big Yagi antenna around. So, I decided to use my fashion sewing skills to make a collapsible fabric Yagi antenna…
The Automatic HF Antenna Tuning Unit (AATU) model ACOM03AT is a complete and self-contained unit for automatic matching of HF symmetrical antenna impedance to an unbalanced 50 Ohm output, that covers a continuous 1.8 to 16MHz frequency range and will withstand 200 to 2500W input power depending on the antenna SWR. FEATURES: • Easy to…
Hermes is a single board Digital Up and Down Conversion (DUC/DDC) full duplex HF + 6m multi-mode transceiver. It is basically the Mercury, PennyLane, Metis and Excalibur boards rolled into one 120 by 160 mm PCB. The board communicates to an associated PC via 100T/1000T Ethernet. Hermes has the following features and facilities: Uninterrupted coverage…