A guided tour of two simple FM transmitters (2 m and 70 cm): crystals, resonance, harmonics, modulation, filtering and antennas, with a corrected circuit and a safe tuning procedure.
Webb melihat galaksi seawal 280 juta tahun selepas Letupan Besar — dan cahaya yang dilihatnya ialah sepupu gelombang radio kita. Webb sees galaxies from 280 million years after the Big Bang, and its light is a cousin of our radio waves: redshift, the 21 cm line, the DSN link and EME compared.
Antena EFHW 6 jalur (80, 40, 20, 15 dan 10 m) reka bentuk VK4YE: cara ia berfungsi, apa itu pengubah RF 2:13 dan mengapa ia bukan balun 9:1. Dalam Bahasa Melayu dan English.
New to ham radio? Learn in plain words how a hilltop repeater listens on one frequency and re-transmits on another, so small radios can talk across mountains and cities.
20 Radio Amateur Examination sessions are open across Malaysia this November for operators stepping up to Class A. Here is where the seats are, which deadlines are closing, and how to prepare.
The world’s biggest DX contest is on: SSB 24–25 October and CW 28–29 November 2026. Dates in Malaysia time, bands, exchange (59 28), scoring, categories, rules and log submission — explained with fresh illustrations.
A practical guide to a single-wire, end-fed LC-trap antenna for five bands (80/60/40/20/10 m, 100 W PEP): how traps work, L and C values, layout, tuning, SWR targets, BOM and an engineering check.
Panduan antena end-fed berperangkap LC untuk lima band (80/60/40/20/10 m, 100 W PEP): konsep trap, nilai L dan C, susunan wayar, tuning, SWR, BOM dan semakan kejuruteraan.
Pelan pembinaan rangkaian APRS LoRa 433.400 MHz: iGate di puncak bukit, digipeater, tracker kenderaan, sistem solar, antena 433 MHz, BOM dan cadangan tetapan LoRa.
Panduan memilih aloi aluminium 6061-T6 dan reka bentuk antena vertical multi-band 60m hingga 10m 100 W PEP, lengkap dengan trap, choke 1:1, sistem radial dan anggaran kos.
