kenwood570 fm tx problem

Eliminating TX RF Feedback Problems - Malfunction of transceivers due to stray RF pickup is a common problem, especially when using end-fed antennas, high-impedance feedlines, or a poor ground counterpoise

G5RV antenna - Review by G3TXQ and comparison to its modificated versions. SWR Measurements on inverted V setup and comparison from EZNEC model and a real one.

The Windom Antenna - Eight Bands On One Coax by kh2d

FM only radios - FM Radio Engineering, projects and FM related resources

Texas QSO party - The Texas QSO party is sponsored each year by the Northwest Amateur Radio Society to encourage contacts between Texas amateur radio operators and amateur radio operators throughout the world.

Scandinavian Activity Contest - SACCW SACSSB Contest info and rules

World Wide South America CW Contest - sponsored by brazilian magazine ANTENNA-ELETRONICA POPULAR

HB9DHG QSL gallery - Fully seachable and ordered QSL cards gallery includes front and back of thousands of QSL cards received by HB9DHG

Eden Valley Radio Society - Eden Valley RS, G0ANT Meets on last Thursday of the month at the Merlin Club Penrith

WAFAR - Western Area FM Amateur Repeater Club - The main WAFAR transmitter site is on the roof of the Civic Opera House in Downtown Chicago, and sends our 2-meter and 440 MHz. repeater signals all over Northeast Illinois.

K5PLD Pearland Amateur Radio Club (PARC) - Pearland Amatuer Radio Club is affiliated with the American Radio Relay League (ARRL) and is registered with the Amateur Radio Emergency Service (ARES) located in Pearland near South Houston, Tx.

Find FM AM Radio Stations - Directory of US FM and AM stations featuring mapping.

E. H. Armstrong - Radio's premier inventor, Edwin H. Armstrong was responsible for the Regenerative Circuit (1912), the Superheterodyne Circuit (1918), the Superregenerative Circuit (1922) and the complete FM System (1933).

Adjusting Filters for PSK31 - Screen shots of what happens when you do and don't get it right. By Dick Stevens, N1RCT, a very clear, helpfull and comprehensive document.

Illustrations of a RTTY Problem - Bad Vibes, a N1CRT illustrations of a RTTY problem

ARDF transmitter for 80 meters - The 80m TX described here is the well known ON7YD ATX-80 and timer, combined and re-engineered to fit a readily available enclosure by G3ZOI

KCOMM,Inc - The Ham Store, Amateur Radio, Ham Radio in San Antonio, Texas USA

AVVid - Repair service - Amateur Radio Service Center, quality repair of Kenwood and Some Icom equipment, TX USA

Tait Electronics Ltd - Asia Pacific - Tait electronics provides advanced and reliable voice and data radio communications products and solutions, specialising in customised solutions for organisations worldwide.

QRS 4 - ON7YD slow CW and DFCW TX program for Windows, works with Argo. By Rik Strobbe

T93Y LogPlus to ADIF - Program which will allow you easy migration from logPlus to another logging software. Tested with Logger by K4CY so let me know it you have problem ADIF import to other software.

ASCII to ADIFF - This program will convert comma delimited ASCII files to ADIF format for import into a logging program that supports ADIF import. The program is intended to be used with comma separated text files produced with other logging programs or with spread sheet programs, such as Excel.

Using ferrite for interference suppression - Excellent guide to using ferrite cores for interference suppression. Understanding and Solving RF Interference and Noise Problems by Jim Brown K9YC Audio Systems Group, Inc. PDF File

Interferences and filtering - General information on Filter passbands, interferences, TVI and RFI problems

The MGM Interface - General purpose RTX-PC sound card Interface for MGM (Machine Generated Modulation)