29ltd classic problem

Multiband HF antennas - Presentation by AC8GY on classic G5RV Antennas and other horizontal dipoles, the popular G5RV, ZS6BKW, dipole fan, Alpha-Delta DX-CC and a trap dipole are modeled in EZNEC and compared.

G5RV in a Sloping-V Configuration - Installing a classic G5RV Antenna in Slopinv-V mode by AI4WM

Collins Radio Classics - Radioing Collins Radio collection

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

Elecraft K3 and N1IC - N1IC's build of the classic Elecraft K3

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

2m 400 Watt linear using two 4CX250B - This is the classic push-pull 2m linear amplifier featured in the various RSGB handbooks, 3 W input, can produce 500W of linear pep

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

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

Classic RF Probe by N5ESE - An RF Probe project by N5ESE

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