Posts Tagged ‘General’
AmateurLogic 216: Repair or Replace
April 18th, 2026 | 
Author:
AmateurLogic.TV Episode 216 is now available for download.
Exploring the Ham Dash App ham radio dashboard. Consolidating the shack with Raspberry Pi 5 and M.2 solid state drive. Should you Repair or Replace that appliance with the recently expired warranty.
Ham College 138
Ham College episode 138 is now available for download.
Technician Exam Questions Part 25
T9A – Antennas: vertical and horizontal polarization, concept of antenna gain, definition and types of beam antennas, antenna loading, common portable and mobile antennas, relationships between resonant length and frequency, and dipole pattern.
T9B – Feed lines: types, attenuation vs frequency, selecting. SWR concepts, Antenna tuners (couplers), RF Connector selecting and weather protection.
Ham College 137
Ham College episode 137 is now available for download.
Technician Exam Questions Part 24
T8C – Operating activities: radio direction finding, contests, linking over the internet, exchanging grid locators.
T8D – Non-voice and digital communications: image signals and definition of NTSC, CW, packet radio, PSK, APRS, error detection and correction, amateur radio networking, Digital Mobile Radio, WSJT modes, and Broadband-Hamnet.
Ham College 136
Ham College episode 136 is now available for download.
Technician Exam Questions Part 22.
T8A – Basic characteristics of FM and SSB: Bandwidth of various modulation modes: CW, SSB, FM, fast-scan TV, Choice of emission type: selection of USB vs LSB, use of SSB for weak signal work, use of FM for VHF.
T8B – Amateur satellite operation: Doppler shift, basic orbits, operating protocols, modulation mode selection, transmitter power considerations, telemetry and telecommand, satellite tracking programs, beacons, uplink and downlink mode definitions, spin fading, definition of “LEO”, setting uplink power.
AmateurLogic 215: Not another Friday 13th?
AmateurLogic.TV Episode 215 is now available for download.
Cutting a 1/4 wave shorted stub. DR Mode travel prep for automatic repeater memories. ATS 20+ Firmware update improvements. Emile’s latest shack update.
Ham College 135
Ham College episode 135 is now available for download.
Technician Exam Questions Part 22.
T7C – Antenna and transmission line measurements and troubleshooting: measuring SWR, effects of high SWR, causes of feed line failures, Basic coaxial cable characteristics, Use of dummy loads when testing.
T7D – Using basic test instruments: voltmeter, ammeter, and ohmmeter, Soldering.
AmateurLogic.TV 2026-02-18 05:30:24
Ham College episode 134 is now available for download.
Technician Exam Questions Part 21.
T7A – Station equipment: receivers, transceivers, transmitter amplifiers, receive amplifiers, transverters; Basic radio circuit concepts and terminology: sensitivity, selectivity, mixers, oscillators, PTT, modulation.
T7B – Symptoms, causes, and cures of common transmitter and receiver problems: overload and overdrive, distortion, interference and consumer electronics, RF feedback.
