super max

The GW3YDX Super Moxon Antenna - Adding extra directivity to the Moxon Rectangle for 6m, 4, and 2m

Super Gain NVIS antenna - A 40 meter NVIS beam antenna by W4NVK

Spiral antenna for RTLSDR - A spiral antenna experiment for RTL SDR usage.

DX Code for DXpeditions - A guide to help maximize the fun for all participants.

Super Antenna Systems - Super Antenna Systems for HF - VHF - UHF Portable Stealth Mobile Base Backpack EmComm Ham Radio antennas

K-Y Filter Company - Modem Telephone Super Filters For HF and AM Radio Interference.

Nuand - Maker of bladeRF usb superspeed SDR Software Defined Radio

Super Walk-a-thon Portable Radio - How to make your HT last for days and get out like crazy

RF Basics - A PDF guide to radio and radio frequency by Martin D. Stoehr

Making super radio out of TS-870 - How to improve a TS-870 by Yuri Blanarovich, K3BU, VE3BMV, VE1BY

mhuxd Priority listing - Use microHam Keyers under Linux Daemon implementing the microHam keyer protocol. Provides virtual serial ports. Supports CW Keyer, DIGI KEYER I/II, micro KEYER I/II, MK2R(+), micro2R.

80m SSB CW QRP superhet transceiver - The 80m SSB & CW transceiver design is based on an already proven concept used in ATLAS amateur transistorised transceivers from 70\'s

Airband receiver - Described here is an airband receiver with good performance, double conversion AM superhet which gives good selectivity and sensitivity and covers 110MHz to 136MHz

A Simple Superhet for 40M CW - An home made receiver for 7 MHz CW

RTL-SDR and GNU Radio - A great page about RTL-SDR and GNU Radio with Realtek RTL2832U [Elonics E4000/Raphael Micro R820T] software defined radio receiver.