marshal post.

This Old Dipole - An antenna construction workshop conducted at Marshall N1FN's QTH

Slotted Waveguide 802.11b WLAN antennas - 802.11b WLAN Waveguide Antennas Unidirectional & Omnidirectional. High gain, Simple construction by Trevor Marshall

BiQuad 802.11b Antenna - BiQuad 802.11b Antenna 11dBi, wide band by Trevor Marshall

BiQuad 802.11b Antenna - Home made WiFi 11dBi, wide band antenna by T. Marshall

This old dipole - An antenna construction workshop conducted at Marshall N1FN's QTH

V73QQ -V73TM Marshall isl - V73TM, V73QQ & V73RRC IOTA Expedition December 2010

IOTA-POST Islandhopper - IOTA resource for island hunters, includes iota dx news and awards

AA9RO Repeater - Serving Henry,Knox,Stark,Rock Island, Mercer, Lee, Warren,Peoria,Bureau,Tazewell,Woodford,Marshall, Fulton, counties in Illinois and Scott county in Iowa.

Longview East Texas radio club - LETARC provides public service to the Longview Tyler Gilmer Henderson Gladewater Marshal Texas areas through the availablility of their SKYWARN alert repeater and a large network of weather watchers.

Radio Meteors-NASA Alabama - Icom PCR 1000 at NASA Marshall Space Flight Center monitoring meteor signals on 67.3 mhz.live.

Iambic Keying - Iambic Keying, Debunking the Myth by Marshall G. Emm, N1FN

QRP When Less is More - Marshall G. Emm N1FN/VK5FN First published in "73 Amateur Radio 05/2000

OK1JKT Karel - Information about traffic on SHF, 10GHz band

QTC OnLine, The Polish Internet Journal - The Polish Internet Journal

Spectrum Analyzer Real-time FFT - Eight-channel Audio Spectrum Analyzer is a set of Real-Time Multi-Channel Gauges for investigation of data accepted from any ADC you will want or 16-, 24- and 32-bit ADC of sound card. WDM drivers support. FFT Spectrum Analysis, OscilloScope, Frequency counter, AC/DC voltmeter, Signal-to-Noise Ratio, Signal-to-Noise and Distortion, Spurious-Free Dynamic Range, Effective Number Of Bits, Total Harmonic Distortion, Inter-Modulation Distortion, Phase Shift. Special modes of dual-channel FFT spectral analysis: Separate channels spectra, Spectra of digital sum, difference, product of two signals, Spectrum of digital product of original signal and its fundamental, Spectrum of Real and Complex Transfer Function, Cross Spectrum. Standart weighing of spectra according IEC and CCIR. Oscilloscope modes (for dual-channel ADC) are: original signals, sum, difference, dependence of one channel on another, amplitude distribution of input signals.