spectrum lab

Indoor multiband dipole - This indoor dipole is available in two version for 20-10 meters and 40-10 meters. EZNEC data files available by HB9MTN

Loop Antennas and Calculator - The purpose of the calculator is to give you a quick overview of the feasibility of "squeezing" a loop into your available yard or apartment space. The calculator yields a reasonable approximation of dimensions, to within 5% over the amateur bands, using typical wire gauges ranging from 12-18 AWG.

KR1ST Magnetic Loop Antenna - This receive only loop covers a frequency range of about 5 MHz to 22 MHz and is built from readily available parts.

US HF Amateur Bands - US ham radio band plan in pdf available for download and print

220 MHZ Spectrum Management Assn - Amateur radio spectrum management and frequency coordination entity for 219

Loma Pioneer Repeater Club - LPRC - The loma pioneer repeater club - lprc provides 2 meter vhf and 440 uhf amateur radio and emergency communication for the san francisco and monterey bay areas from a repeater on mt loma prieta. aprs digipeater available.

T.A.S.M.A. - Amateur radio spectrum management and frequency coordination entity for 2-meters in southern california.

W6VIO JPL Amateur Radio Club - The JPL Amateur Radio Club is open to employees and contractors working at all Jet Propulsion Laboratory facilities including the Deep Space Communications Complexes in Australia, Spain and Goldstone California.

Tri-County Amateur Radio Association - An amateur radio association (club), a service organization, located in laverne, ca, usa which meets the second (2nd) wednesday of each month. non-members are encouraged to attend. the monthly newsletter is called the qrm. training and testing help available.

UCF ARC - MMAE - This is the central collaboration page for the UCF Amateur Radio Club.

W2IMU Avaya Lincroft Amateur Radio Club - Open to employees and retirees of Avaya Inc. in Lincroft NJ. As Avaya Inc. was spun off from Lucent Technologies, AT&T Bell Laboratories, and even Western Electric

K2BNL Brookhaven Lab Amateur Radio Club - Part of the Brookhaven Employees Recreation Association

CAIG Home of DeoxIT - Caig labs - featuring advanced contact cleaners deoxit, deoxit gold (progold) and deoxit faderlube (cailube mcl) for manufacturing, maintenance and service.

Madell Technology Corporation - Makers of oscilloscopes, spectrum analyzers, frequency counters, power supplies and more testi equipment products

Spectran - Cheap hand held Spectrum Analyzer

Trilithic - Broadband instruments, R and microwave components and filters, field analyzers, spectrum analyzers

CQ Zones World Map - A PDF file of CQ Zones made available by Icom America.

Fcc Lookup System - The FCC Lookup System software uses the standard FCC data files in an advanced lookup system for matching a call sign to a user. The software creates index files to allow rapid searches without modifying the FCC data file. Available for both Windows and Linux.

RUMLog - RUMlog is a short-wave logging and QSL handling/printing tool for MacOSX RUMlog is available with an interface for transceiver control. Supporting Kenwood, Elecraft and ICOM. (IC-7400/IC746PRO, IC-7000 and IC-706)

Cleverscope - The PC USB mixed signal oscilloscope - Cleverscope PC based oscilloscopes, spectrum analyzers and signal generators

BIP Electronics Lab Oscilloscope - Freeware windows oscilloscope uses the sound card's input to measure signals. This means that the quality of the scope depends on the quality of your sound card. The scope automatically uses the highest sample frequency available at the input that you select

SweepGen - SweepGen turns a PC into an Audio Oscillator and Sweep Generator which can be used for testing audio or educational purposes. In conjunction with audio test instruments, you can make frequency response plots. SweepGen uses the sound card in your PC to produce sinewaves

Sine Wave Generator - Freeware windows Wave Generator use the sound card's output as sine wave output. A built in sweep algorithm is used by audio hackers to measure frequency repsonses of their amplifiers

Simple adjustable passive attenuator - This adjustable passive attenuator works as a "waveguide beyond cutoff." It can be constructed in about ten minutes from parts available locally.

Home Brew a Condenser Microphone - An inexpensive condenser microphone with excellent performance can be easily constructed with easily available parts.