mfj 249 analyzer problem

Homemade WARC Dipole - Here you can find all dimensions to make your own three band dipole for 30m – 17m – 12m. ON4AFU describe here a rigid dipole with dimensions and picture.

SWR analysis of a G5RV antenna - Plotting SWR of a G5RV Antenna with a RigExpert analyzers

HEXA beam for portable use - HEXA beam Special Light Dxpedition Version, works on five bands, 10-12-15-17-20 meters and has a total weight of 3 Kg.

Ham licence in Thailand - Ham Radio licencing in thailand by on4afu

RFI problems running RTTY - You may never have an RFI problem when running SSB, but all of a sudden you find RFI creeping into your system when using RTTY. Learn why and how to solve it.

Another Problem with the Alpha 9500 - AB4D post on a tube defect of Alpha 9500 power amplifier

Alpha 9500 blower problem - How to reduce noise on Alpha 9500 amplifier fan.

FL2100 Modifications and Repairs - Common problems and improper operations of Yaesu FL 2100 RF power amplifier

ICOM IC-7000 Low Power Output - How resolve low power problems on Icom IC-7000

TS-590 ALC Overshoot PAD MDS and IP3 - A DK5TX article on Kendoowd TS-590 ALC problem with ALC spikes and other interesting topics

Kenwood TS-690 Modulation Mod - TS-690 50 MHz modulation problem solved

Solving harmonic problems on UV3R - KA7OEI modification to LPF for the Baofeng UV3R

CubiCom - Italian ham radio dealer for MFJ MicroHam Acom RigExpert and Mastrant

Maes Electronics - Telecomunications import export, ham radio dealer based in Belgium for MicroHam, MFJ, LDG, ICOM Yaesu and other ham radio brands

Dagatron Instruments  ^new Priority listing - Shop for testing equipment. The catalogue includes: Multimeters, Clamp meters, Environment meters, Electric testers, EFM meters, Mechanical testers, Power analyzers, Resistance meters, Tachometers, Thermometers and Vibration meters. Brands liks Dagatron, Hibok, Kyoritsu, Brymen, Lutron.

phpQW Tool Log Analysis - Web based Amateur Radio Log Analyzer display contact map based on uploaded log, support ADIF Cabrillo REG1TEST-Edi and STF-Logfile format

Xoscillo - A multiplatform software oscilloscope and logical analyzer software that acquires data using an arduino or a parallax USB Oscilloscope

Antenna Relay and distributor Box project - Have you problem with your RG cables ? This page describes a smart antenna box using an RG-cathode for 3 antennas. The remote control needs just a simple wire and the GND for remote-control

Refurbishing the MFJ-264 Dummy Load - MFJ-264 dummy load restoration by VE3LNY

Find RFI causes in mobile operations - Troubleshooting your power supply, in determinig connections to battery, alternator and regulator interference and checking power supply leads.

Antenna RFI Problems - Antenna problems, eliminating RFI while in Cars mobile operations

Spectrum Analyzer Tutorial and Basics - A summary or tutorial about the basics of the spectrum analyzer, what it is and what it is used for.

Arcing or Gassy 572B Tube - Common problems of the 572B tubes often used in many RF Power Amplifiers

IW3HEV embedded antenna analyser - An interesting project of the popular IW3HEV antenna analyzer in and embedded solution by PA3CKR.

Digital HF Antenna Analyser Project - This antenna analyzer measures complex impedance over the 1.6 - 33 MHz HF spectrum by ZL2PD