ftir data analysis

How to Make a Great 9:1 RX Transformer - There are lots of good designs for matching transformers for receiving antennas. Make it yourself it's cheap and easy, and very high performance. This is the design used in the TRX-9 transformers.

Beverages on 40 Meters - Gary Breed, K9AY experience with beverages on 40 meters

The Off-Center-Fed Dipole - A Broadband, Multiband Antenna taken from QST, Aug 1990. OCF Dipole antenna.

43 Foot Multiband Vertical Installation and Performance - Installation notes, and decision analysis for selecting and erecting a multi band vertical antenna with radials.

Ham Radio Contest Maps - US Contesters maps generated based on ARRL online score data by WM5R

Beacon List Generator - Ham Radio Beacon list generator from SK6YH database

VHF QRZ Database - Maintanined by DL8EBW offer searchable map of registered VHF operators

Argent Data Systems - OpenTracker+ and Tracker2 series APRS devices for real-time vehicle tracking, weather monitoring, and remote telemetry, aprs tracker manufacturer.

WSPRnet Weak Signal Propagation Reporter Network - A group of amateur radio operators using K1JT's MEPT_JT digital mode to probe radio frequency propagation conditions using very low power transmissions. Computer sent/received Morse signals received by amateurs and collected on an online database.

Catania Observatory sunspots data - Daily sun spots data collected by the Catania astrophysical observatory

KB2LJJ IC-756 Mods - Collection of modifications for the Icom IC-756

KB2LJJ IC-756PRO modifications - Collection of modifications for the Icom IC-756PRO

RigPix Database - Yaesu - VR-5000 - Big picture and detailed feature of the yaesu VR-5000 receiver

TH-D7 Data communicator - Kenwood TH-D7 details. Kenwood's new TH-D7e is equipped with a TNC and provides a wide range of data communications options

TH-D7E modifications - Extending reception and transmission of a Kenwood TH-D7, upgrading firmware, enabling the SKY-COMMAND

link7 - link7 is a Windows 9X program to download/upload data from/to the Kenwood TH-D7.

TH-D7A Review - The Kenwood TH-D7A dual-band data HT by Alan Crosswell, N2YGK

TH-D7 Protocol Specification - This document has been produced by examining the data going into and coming out of the TH-D7 HT from Kenwood.

Train's Towers - Maintenance of Antenna Tower Systems, Antenna tower foundation analysis and repair, Tower troubleshooting and repairing

Super Check Partial - Super check partial is a feature that K1EA first introduced in his CT logging software. It enables the use of a database to extend the list of calls that appear in the check partial call window. Used correctly, it can help you more quickly pull a call out of the QRM

ALL2DTA - Win32 command line utility, that allows you to create Master Callsign Database file (DTA), used in many contesting programs, from different logs in ADIF, Cabrillo, and plain text formats.

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

Kenwood Pin Connectors - Microphone, accessories and data packet pin connection schematics for Kenwood Radios

Calculating the Received RF Noise Power - Voacap, high-frequency ionospheric communications analysis and prediction

Interface for TM255 and TM455 - PTT and souncard interface for the kenwood TM255 and TM455