HandyPSK – QRP PSK Transceiver

HandyPSK Features – Compact & standalone mono-band transceiver for digital mode operation – 40m and 20m models available. – Complete transceiver. No external radio equipment required. – Front end crystal filter architecture. Low noise and high IMD dynamic range. – Internal DSP emphasizes weak signals and decodes the text. No PC required. – Rotary dial…

QUANSHENG TG-620 Dual Band H/T Radio

QUANSHENG TG-620 Dual Band H/T Radio Frequency Range Dual Band: 136-174MHz /400-480MHz(RX/TX) Dual Band: 136-174MHz /245-246MHz(RX/TX) Channel 128 Channel Spacing 25 /12.5KHz Operating Voltage 7.2V Antenna Impedance 50? Operating Temperature -25?~+65? Frequency Stability ±2.5ppm TRANSMITTER Output Power 4-5W Modulation 16K?F3E/11K?F3E Maximum Deviation ?5.0KHz(W? Spurious Emission ?65dB Audio Distortion ?5% RECEIVER Sensitivity ?0.25/0.28?V Adjacent Channel Selectivity…

SDR-4+ HF Receiver

The SDR-4+ is an HF general coverage SDR receiver covering from 0.85 to 40 MHz. It has a Si570 low noise synthesised VFO, relay switched band pass filtering, ultra high IP3 E-PHEMT RF amplifier and a built-in USB soundcard. Key design features include: Antenna isolation transformer with a 50 or 450 ohm impedance input for…

Who Needs Ham Radio

What is a ham radio Over the years amateur radio, or ham radio has become a big part of my everyday life. I like learning how radio equipment works and repairing my own equipment. I also enjoy operating older tube radio transmitters and receivers from the post war era up into the late 70’s. Radio…