A simple shutdown switch avoids trashing your Raspberry Pi’s operating system. SSTV from the ISS with Peter. George visits the Orange Texas Hamfest. Modulation on a Scope, viewer emails and more.
Contesting clubs in Canada and New England have joined forces to invite non-hams, new hams, and even old timers to discover HF radio in the 21st centu... Read more
Product description Specification： General 1. Frequency Range:VHF:136-174MHz UHF:400-480MHz 2. Number of Channel:200 3.Channel Spacing:25KHz 20K 12... Read more