cte titan 500

Discone for HF bands - 80 feet tall Discone was built by Collins Radio Company in the early 1960s

Guanella 4:1 balun - This article reviews the proposition that a 4:1 current balun in the style of Guanella can be constructed with both pairs of windings sharing a common magnetic circuit.

The Quadrifilar Helix Antenna  ^updated - Article about quadrifilar helix antennas, electrical and physical characteristics, difference between quadrifilar and conventional helix

The Moxon Beam Antenna  ^updated - Notes on moxon antennas for VHF and HF bands. Main characteristics, gain and f/b ratio by DK7ZB

The EWE in the Garden - A Tropical Band Antenna with good Receiving characteristics

EWE Antenna comments - cq-contest reflector comments about the performance of the EWE receive antennna collected by KA9FOX

GAP Titan DX Repair - K6DQ GAP titan dx antenna repair

A Two-Way Morse Practice Set - The system consists of a pair of Morse practice oscillators connected by a piece of two-conductor cable. Pressing the key on one unit produces a sound in both units by Peter Parker VK3YE -

HF Multiband vertical antenna selection - Comparison chart between Cushcraft R8, Hy-Gain AV640 , Butternut HF6V, Gap Titan and Eco 7+

Global Frequency Database - Frequencies from all over the world. 25000+ total records, 4600+ records feature exact GPS locations.

Signals - Trio Datacom, Dolectek and Yaesu Vertex Standard cb and ham radio dealer in new zealand

CwType - The terminal program for CW-operators. You can transmit both from the keyboard and from a paddle connected to game or LPT ports. You can also operate in paddle iambic mode. Control of the transceiver (PTT and CW keying) is made through one of the COM or LPT ports. CwType can integrate with AALog software

VOAProp - VOAProp shows you typical propagation for a given hour of the day during a given month. The propagation is shown as expected signal strengths to be received from different parts of the world, plotted on a world map. Windows freeware by G4ILO

PCRCloak - A small, simple Windows program to cloak the ICOM PCR-1500 and PCR-2500 as a PCR-1000, allowing owners to use their scanner with Ham Radio Deluxe

EOO - Earth Orbit Objects is free program which predict satellite passes for your local or any selected area. Use flat Earth view to display satellite tracks with visibility circle. The globe view shows selected satellites around the Earth as a sphere and sky view shows satellites as you would see them in a starry night.

80-10m Linear Amplifier - High-power 3-500 HF linear amplifier by Don Pinnock G3HVA

500w 4X150A/7034 TubeVHF amplifier - 500w 4x150a/7034 tube 26-30mhz vhf output amplifier

GS-35B 6 meter amplifier - VHF power amplifier for 50MHz using GS-35B tubes, output 1500 W with 75 W input

6M QRO - 500 W RF Power Amplifier for 50 MHz by KB0NLY

Remote Antenna Switches - W4KAZ article on antenna switches

A Simple CW Keying Interface - Functional, easy, and cheap, all good Ham Radio characteristics by Terry Fletcher, WA0ITP

Homebrew C-L-C QRP Antenna Tuner - This is a C-L-C type tuner with a reflected power indicator. Tuning is done for minimum reflected power.

The Rock-Mite CW Kit - The Rock-Mite is a 40m CW kit offered by Small Wonder Labs . It features built-in keyer, direct conversion receiver with a crystal RF bandpass filter, 500 milliwatts of power, and switchable frequency offsets to work around QRM

TenTec Omni VI AGC modification - Modification leaves nearly all of the existing Omni agc circuitry intact, simply add an audio detector which modifies the delay characteristics of the original system by G3IXQ

Digital oscilloscopes comparison - Comparison of all the oscilloscopes available for hobbyists, digital oscilloscopes that you can get for under $500, or oscilloscopes that you can build yourself.