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Cushcraft A3S HF antenna 1:1 balun repair.

This circuit enables fair copy of strong 444 MHz signals, off a local repeater, using a 2m rig and a 1/4λ 70 cm indoor ground plane antenna.

Notes on the intensity of RF Field calculated on magnetic loop antennas. The magnetic field intensity of a mag loop is considerably higher than the E field probably due to the inductive portion of the resonant circuit creating the radiation (magnetic) in the near field

Articles about Amateur Radio, own writings and translations: history, DXpeditions, contesting and DXing ethics, Codes of Conduct, Suggestions for Pile-ups, Suggestions for Contesters, the most wanted DXCC entities.

This antenna article is geared towards new Hams and antenna builders looking for a very inexpensive 6 band antenna that can be efficiently fed with 50 ohm coax without a tune

Useful hints & tips on building a 10 and 17 meter Moxon Antenna

Adam Brown's Blog from Latitude 80.19 South Longitude 81.16 West

A fully equipped amateur radio mobile radio shack by VE6AB

How to receive JT-65 signals using a cheap RTL-SDR dongle with the 820T2 tuner chip

Irish ham and Vhf radio info. Logs and maps worked, no excuses, this is mainly a VHF site

Stop common-mode current when transmitting with an end-fed antenna. Unbalanced antennas are very prone to currents on the outside of the coax.

Search JD1BMH online log

2m Skeleton Slot yagi Stack

Welcome to SW2A special contest station, with photos, logs and results

Pictures and description of a SteppIr vertical antenna setup in a small backyard using DX Engineering radial plates.

ik3qar Logs on line of IOTA EU131 / IIA expeditions

The latest info on the world of radio including:world,shortwave,pirate,digital,mw,lw news,links.

Pictures and description of a homemade 1.3 GHz and 2.4 GHz RF Signal Source

A wire antenna feeded with an unsymmetrical feed and a 1:4 balun can be tuned from 6 to 80 meters band but can be noisier than a dipole and cause RF in the shack

An homebrew project of a full wave delta loop antenna for the 40 meters band with dimensione, picture and assembling instructions in Indonesian

An comprehensive article on 40 meters antenna comparing vertical height to the resulting gain

Homebrewing dummy load by M0XPD

AM DXing taken to the extreme. Reports and station logs from DXpeditions to Arctic Northern Finland. Also articles, QSL news, links, audio and video on AM DXing. Published by Finnish DXer Mika Mikelainen.

An interesting article about planning and testing beverage antennas for 80 and 160 meters in a rural location

A no ground antenna solution for backpackers, balconies or plastic car bodies, like RV or other portables uses where is difficult to find a good counterpoise by PD7MAA

KD8KSB realization of the CJU satellite antenna that allow similar performance to the arrow antennas.

Setting up a new antenna Mast for dipoles at VE3VN

Android app by VE3VN that show view of night, day and terminator around the globe. This gives a strong hint of which bands and compass directions to focus on for best results.

Testing log wire antennas and a unun by G0KYA

Cutting out the noise using a simple coax filter to improve the poor front end filtering

How to connect and key Power Amplifiers to Kenwood TS 590 or TS 990. How to home made custom Remote cable to key power amplifiers by JG1VGX

An economical dipole for simple QRP HF homebrew rigs

Demonstrating the construction of a short dipole antenna tailored for the 60 meter band, this resource provides detailed instructions for radio enthusiasts with limited space. The design incorporates inductive loading using two inductors (L1/L2) made from PVC tubes, allowing for effective operation on 5 MHz. The antenna consists of 12 meters of wire, divided into four sections, with specific dimensions and materials outlined for optimal performance. Results from users indicate that this antenna can significantly enhance DXing capabilities on the 60 meter band. Feedback from operators suggests that while the design is effective, adjustments may be necessary based on individual setups, such as coil diameter and wire gauge. Many users report successful construction and operation, with some experimenting with variations to improve resonance. The practical application of this antenna design has led to successful contacts and improved signal quality, making it a popular choice among 60 meter band operators.

Special logging program, optimized for mobile, portable, and field operations. This software exports data in the ADIF which then may be imported into your general logging software, or online services. Currently available for Android.

A custom modification RC-D710 GPS-INSIDE mod.

Cushcraft A3S performances with the A743 kit to add 30 and 40 meters

Attenuating output power to Yaesu FT-817 and interesting article for really QRP operations by PA1B

A simple UHF Crystal Radio wired up to check for reception of VHF/UHF signals in the vicinity of the shack.

Log Online ZK2C 2012

About my self, family & the exciting of amateur radio.

Homebrew Tubes/LDMOS amplifiers, Antenna, accessories, adventures in 9Q, DX, UN missions, Contests, and more.

Modoification for the Yaesu FT-8800 144/430 MHz dual band FM transceiver

Article on an outdoor usage of the AH-4 antenna tuner

A new multi-mode QRP radio beacon built around the Arduino. The beacon started with the usual lash-up on the bench, hooking the previously reported Wotduino and DDS Shield up to a driver and a transmitter module, as previously used for the Raspberry Pi beacon

A dual band delta loop antenna resonating on 30 and 40 meters band using a single wire for the top slopers on both 30 and 40 meters and does not need any balun

Welcome to the wwff logsearch - part of the world-wide flora. Search your call sign for any contacts done with the WFF Stations.

T32 DX peditions logs, T32CI T32MI T32SI T32VI

Ham radio Blog, focusing on homebrewing and testing antennas, rig mods and contesting.

Setting up HF10 a solution for those having limited locations and wanting a low visual impact aerial by G4LDS

A morse keyer project with plan by m0xpd