amp keyer

Designing Log Periodic Antennas - By Dr. Glen Dash, Ampyx LLC

Single-stub matching - Single-stub matching of transmission lines to loads A worked example

Digital Operating Modes - Description, frequencies and sound samples of most popular amateur radio digital modes by DG8FBV

Numbers Stations - About numbers stations, and their criptic transmissions, where to listen to them and some audio recording samples by fascinating shortwaves

HiZ-Antennas - High impedance amplifiers for shortened vertical antennas, Array matched and Optimized 15dB Preamplifier

Lunar Link Systems - VHF UHF Power amplifiers and accessories

Sommerkamp FT 250 review - Sommerkamp FT 250 Shortwave Transceiver (YAESU FT 200)

13cm.co.uk - Amateur Television products, online store for ATV transmitters receivers, LCD controllers, wireless cameras, video senders, accessories, power amplifiers based in UK

LAM Communications - Icom Kenwood Yaesu MyDel dealer, offer a wide range of ham radio products, transceivers, antennas, rotators, microphonrs, aerials, dummy loads, rf amplifiers and scanners based in UK

Tecno Comunicazioni - Italian ham radio dealer, accessories for transceivers, scanners and receivers, antennas, amplifiers, tuners and more

KB3IFH QSL Cards - QSL Printer shop, products include Photo QSL cards, Eyeball cards, and State QSL Cards, based in Hampstead, MD USA

Fascinating Shortwaves - Article collection about shortwave listening, including number stations, tty fax reception samples, utility stations examples, navy and military morse metworks documention

Improper Loading of Amplifier - Improper tank adjustment and excessive drive are equally harmful to component life, and either can create splatter

Enable Low Cost RF Power Amplifiers - A new paradigm for low cost, reliable RF amplifier ‘pallets’ has been enabled by new circuit design, manufacturing and thermal management techniques

Microwave RF Amplifier Design Tutorial - This tutorial will set out the design stages required to design a theoretical microwave amplifier

Highly linear rf power amplifier design - The need of high linearity is one of the principal drivers in the design of power amplifiers for new generation applications

Desgin Power amplifiers with Genesys - Article on how use Genesys sowftware to design RF power amplifiers

Power Aamps RF voltages - This test circuit is easy to duplicate, and demonstrates the extreme voltages that appear in an amplifier when the load is improper for the amount of drive power applied.

Power Gride Tubes - Article on tubes and their usage in power amplifiers design. Explain failures of tube in RF power amplifiers, a common problem in the SB-220 SB-221, TL-922 and other amplifiers.

Remote Control of Mast Mounted Equipment - This article presents a method of controlling preamps, antenna switching and polarization switching remotely without the use of control cables.

Attenuators and Preamps - How to get the most from attenuators and preamps

Design 435/145 MHz diplexer filter - This example shows how SERENADE 8.7 can be used for help designing a contiguous lumped element diplexer by HA8ET

IK0WRB Keyer - IK0WRB CW Keyer using a PIC 16F84

40 AMP Power Supply - G4YNM article on a 40A power supply unit

Preamplifier for 144 mhz - CX2UA 144 mhz preamplifier homemade project in spanish