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Baofeng UV-5R extreme Receive Modification

Applying for an FCC vanity call sign requires navigating the _Universal Licensing System_ (ULS) database to identify available call sign blocks and specific desired combinations. The process involves submitting an online application via the FCC website, ensuring all instructions are meticulously followed to avoid rejection. Typical processing time for a vanity call sign application is approximately **18 days**, after which the ULS database reflects the updated license grant. Operators often seek vanity call signs for various reasons, including aligning with a new license class, desiring a shorter call sign for CW efficiency, or simply preferring a more memorable phonetics. The resource emphasizes self-application to avoid third-party service fees, directing users to verify availability through tools like Vanity HQ. Key steps include selecting a primary call sign and several alternates, ensuring the chosen call sign conforms to FCC rules for the operator's license class. Payment can be made online or via check, with prompt submission critical to prevent application dismissal.

More links to Icom IC-746 resources on the web

A six meter Moxon rectangle antenna. Includes high definition pictures and a detailed drawing by KG4JJH

This simple 30m QRSS beacon is built entirely out of junkbox parts, the only component purchased specifically for this project was the 10,140kHz crystal. Hans Summers' 30m QRSS beacon project emphasizes simplicity and low cost, built almost entirely from reused parts. Key components include a 10,140kHz crystal, a 2N3904 transistor from a broken DVD player, and an ordinary LED used for frequency shift. The oscillator is stabilized in a polystyrene box, with power amplification driven by recycled copper PCB. Output power peaks at 360mW, and a custom 50-ohm dummy load manages heat. Though aesthetically unconventional, the beacon works effectively, fulfilling the project's low cost aim.

This project will enable you to build a monoband long wire inverted vee with 3/4 wave length sides that will have a bit of gain

The NAVTEX system is used for the automatic broadcast of localised Maritime Safety Information (MSI) using Radio Telex (also known as Narrow Band Direct Printing, or NBDP).

Modifications for the Yaesu FT-920

Detailed picture of a FT-857D backpack by YO3HJV

A three element wire yagi antenna for 7 MHz project plan with drawings and EZNEC model

A 90-foot vertical antenna constructed from **aluminum irrigation tubing** is detailed, focusing on its innovative raising and lowering mechanism. The resource describes a **45-foot ginpole** system, allowing a single operator to erect or lower the antenna in minutes. It covers the mechanical design, including the pivot base, insulated joints for the tubing sections, and guy wire attachment points. The antenna consists of two 30-foot sections of 4-inch tubing and one 30-foot section of 2-inch tubing, stacked with the smaller diameter at the top. The electrical design incorporates PVC "condulet" boxes at the 30-foot and 60-foot points, housing relays to change the effective height for multi-band operation on 160, 80, 40, and 30 meters. Ferrite rod inductive chokes are used for DC control and to tune out gap capacitance. The antenna is fed with 1000 feet of open wire line, connected to a matching transformer comprising stacked toroids and a coaxial/toroidal balun. Grounding is achieved with a 3x3 foot grid of 16-gauge tinned copper wires with soldered crossovers.

It consists of a radiating wire with a length equal to the half-wave of the fundamental frequency for which the antenna is cut.

How to make your ham radio system mobilemany ham radio operators carry radios for fun, safety and public service activities. radios for both vhf and hf frequencies can easily be installed in vehicles.

A pdf file with review of RTTY contests software available on the net and information on how to operate a RTTY Contest, by RSGB.

Low power VHF RF amplifier with VMP1 Mosfet by IZ1BTS IK1XPD

MorseGen is a simple program the purpose of which is to generate Morse Code at whatever speed you feel comfortable reading, for practice purposes. It wasn't designed to be a tutor for those who know no Morse at all, although you might find it useful for that purpose. It doesn't have a feature for sending small character groups over and over, although this can easily be achieved by creating text files containing the character groups you want to practice.

DK7ZB 9 element antenna

This antenna consists of 4 resonate dipoles made from 12 insulated copper electrical wire. The dipoles are resonate on the following bands: 6 meters, 10 meters, 12 meters and 17 meters.

K6DQ GAP titan dx antenna repair

Useful data-sheet on RG coax cables compiled by NA5N

Spread Spectrum Scene. Radio Propagation notes, with downloadable files.

An invisible magnetic loop antenna mounted under a table by PY1AHD

A QRP 900 grams hydraulic tuned small magnetic loop antenna by PY1AHD Alex.

A morse code tutor for the Macintosh.

Building a Dummy Load and Measuring Power Accurately

In this article the schematic is of AA5TB QRP power meter and dummy (50 Ohm) load combination

A multi-mode QRP radio beacon built around the Arduino. This radio propagation beacon transmitter project is presented by M0XPD

Angle Linear has been producing GaAs FET preamplifiers since 1980

Recordings of shortwave numbers stations

A magnetic loop made just of wire. Suitable for portable usage and for QRP operations.

Calculate Cable Loss from SWR and reverse. Text file with only two simply formulas

If you are interested in the environment, the weather and other natural phenomena then there is something magical about being able to see pictures of the earth from space just as it is right this minute. One way you can do this is by receiving images from weather satellites.

This project is an attempt to build a portable standalone VNA (Vector Network Analyzer).

Developed by Japanese 6 Meter Hams in the 1970's can be designed and built for almost any band

A Simple Project: One Transistor TRF Regenerative RX

You can use almost any Icom handheld to contact your 2720H back in your vehicle for crossband repeating.

This free software is an application solely for the use of controlling the Kenwood TS-480. Can be used to edit, save, and export to the TS-480 information such as Memory, Menu, and Auto Mode frequencies.

Yaesu MD-100 microphone schematic wire diagram with pin out

435 MHz double quad antenna by F5WN

This is a command-line or DOS program to convert a Cabrillo file to ADIF. The fundamental purpose is to take the output of a contest logging program (such as TRLog or CT) and prepare it for importing into a general-purpose logging program

Here is a way to ease assembly and balancing of a large antenna. The elements and boom are assembled separately in most cases. Once they are all together set up 2 tripods in the assembly area and put the boom on them.

A 50 foot tower setup with pictures and installation details

An 85ft wire fed against a 17ft counterpoise that works well in 80 and 40 meters

What is Family Radio Service? Do I need an FCC license for my FRS unit? Where may I operate my FRS unit?

Using the FT897 with DRM, in german

Build An Offset Attenuator by Joe Moell K0OV as featured in Homing In for May 1998

Deciphering weak or noisy **CW** (Continuous Wave) signals often presents a challenge for amateur radio operators, particularly in contest environments or during DXpeditions. CWLab04X addresses this by providing a software solution that leverages **DSP** (Digital Signal Processing) capabilities of a soundcard to decode Morse code. It functions as both a receiver and a sender, supporting traditional CW and a unique "CCW" mode designed to enhance copyability of signals struggling against high noise floors. The program offers two installation methods: a Windows-specific installer for straightforward setup or a zipped package compatible with Windows and Linux systems running Wine. Users must first download and review the accompanying PDF documentation, CWLab04.pdf and CWLab04_Hardware.pdf, which detail the software's operation and the necessary soundcard interface circuit. The hardware PDF outlines a direct connection from the receiver audio output to the soundcard input, with optional conversion of the soundcard output for hard-keying or microphone input. CWLab04X is intended as an operational aid rather than a replacement for skilled human copy, particularly highlighting the effectiveness of its CCW mode in adverse signal conditions. The software was last revised in April 2009, with installation requiring the LV Runtime 602.

A Bulgarian bazooka antenna project by LZ2ZK

Coaxial cables attenuation chart

Diagram and sample ferrite balaun for 1.8-30 MHz