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February 2026 Lecture: Field Programmable Gate Arrays: Zero to Blinki...

February 2026 Lecture:  Field Programmable Gate Arrays: Zero to Blinkie

The February lecture presented by Clifford VK2CLF is now up on our YouTube channel, VK2MB-TV. Software Defined Radios rely heavily on digital signal processing. The high data rates require specialised hardware, usually a Field Programmable Gate Array (FPGA). Programmed in Verilog or VHDL, these chips run complex computations in parallel synchronous logic, unlike the sequential processing of conventional computer […]

April 2026 lecture: Helical Travelling Wave VHF Antennas

April 2026 lecture: Helical Travelling Wave  VHF Antennas

The April lecture presented by Carmel VK2NO is now up on our YouTube channel, VK2MB-TV. Carmel VK2NO talks about the discovery she made when researching traveling wave helix antennas, while building her own axial mode antenna. Normally used for satellite operation in the higher bands, these antennas are cumbersome and too large for the lower […]