frequency step

The Carpet loop indoor antenna  ^pop - High performance indoor shortwave antenna, the Carpet Loop II is an ideal step upward for the listener who wants something better than a random wire but doesn't want the expensive dice roll of an active antenna.

K7HC SteppIR and Tower project - Pictures of K7HC SteppIR and tower setup project

FCC Bandplan  ^pop - FCC Frequency Bandplan even if outdated is a good starting point to have a basic frequency list

F5NZY Stephane - F5NZY Home Page

K-Com - comprehensive line of products for rejection of Radio Frequency Interference (RFI) to telephone equipment.

US Frequency Allocation Chart - Colorfull radio frequency spectrum allocations in the US, in PDF Format

The Radio Spectrum  ^pop - Radio frequency allocations

WW Frequency allocation links - Table of frequency allocations international & US by Bill McFadden

SSTV Frequency list - Where to look on the Bands for SSTV

900MHz telephone frequencies - Frequency table for 900Mhz phones

ACA frequency database - Australian frequency database

PSK31 official page - Description of PSK31, mailing list, frequency for QSO

HF RTTY Stations - ik8enh list of HF stations transmitting in RTTY with Baudot/Schift, frequency and call

Scannerstuff - Southwest Frequency Directory

Kenwood TS690S - Expanding frequency coverage, transceiver Labtest by Christoph Petermann DF9CY

Australian Radio Frequency Allocations  ^pop - Large aurtralian radio frequency charts collection

Dublin Frequencies  ^updated - Army, navy, police, ham frequency in Ireland and N. Ireland

North Ireland scanner info - Frequency spectrum, civilian and military frequencies

MidSouth Scanner Listing - Arkansas US, scanner frequency listing

Analyzer2000 - Fast, high resolution time-frequency analyzer with FFT display for time and frequency variant signals.

DigiPan  ^pop - DigiPan provides a panoramic display of the frequency spectrum in the form of an active dial scale extending the full width of the computer screen. DigiPan is the result of a joint effort between myself and Nick Fedoseev, UT2UZ, the author of MIXW32, and is intended to make PSK31 operation easier and more enjoyable for everyone.

PLL2 - 2nd Order phase locked loop design for passive and active circuits. Bode plot, step response, design parameters

Walford Counter Kit Frequency Counter Kit Construction - homebrew a frequency counter by M1HOG

Frequency and VFO - How to keep from being out of band

Grounding Systems for Hams - Grounding Systems for Amateur Radio Stations, Safety grounds vs. radio frequency (RF) grounds, the practical station ground