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Icom Announce ID-50 Compact Digital Dual Bander

DXZone

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May 12, 2023

Icom Announce ID-50 Compact Digital Dual Bander

Icom has announced details of the ID-50E, a new dual-band D-STAR digital transceiver to complement Icom’s popular ID-52E model, providing even more choice for customers when it comes to D-STAR digital communications.

The ID-50E is a compact VHF/UHF dual bander with both D-STAR (Digital Smart Technology for Amateur Radio) and FM dual modes and looks very much like the popular ID-51E/PLUS.

ID-50 D-STAR Digital Handheld Transceiver Features:

• Worldwide communication through the D-STAR network
• Band Scope with Waterfall display
• DR (D-STAR Repeater) Function
• Terminal mode and Access Point mode
• D-STAR Text Messaging
• Picture Sharing Function with the ST-ID50A/W picture utility software
• Dual watch function of VHF/VHF, VHF/UHF and UHF/UHF
• VHF Airband and FM broadcast receiver capability
• Charging with a USB type-C Connector
• Easy-to-see Single Band Mode
• microSD Card Slot
• Built-in GPS
• IPX7 Waterproof and Tough Construction
• 750 mW Loud Audio Output Power
• Shares same optional accessories as ID-52/ID-51/ID-31 Series

ID-50 Main Features

Global communication reach using the D-STAR network
Easy D-STAR settings help beginners
Terminal Mode and Access Point Mode^*1
Share Picture function^*2 with the ST-ID50A/W picture utility software
Band Scope with Waterfall display
Dual watch function of VHF/VHF, VHF/UHF and UHF/UHF
VHF Airband and FM broadcast receiver capability
Same optional accessories can be shared with the ID-52/ID-51/ID-31 series transceivers

*1 Terminal and Access Point modes are compatible with the Icom RS-RP3 Gateway Software. If your D-STAR repeater is running G1 or G2 software, ask the repeater administrator to contact the local Icom Distributor to upgrade the software. You need an Internet connection with an IPv4 Global IP address. If you use a cellular system, you need an IPv4 Global IP address assigned to your Android™ device. The RS-MS3W optional software is required to be installed on your PC (Download from Icom website). The RS-MS3A optional application software is required to be installed on Android™ devices (Download on Google Play™)　

*2 Share picture function requires the optional software ST-ID50A (Download on Google Play™) or ST-ID50W (Download from Icom website.)

Top Amateur Radio Websites – Issue 2318

DXZone

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May 7, 2023

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28 MHz Antenna Project

VK1AD

10m Flowerpot Antenna, monoband half-wave vertical coaxial dipole antenna for 28 Mhz.

K1FM Mini Magnetic Loop

K1FM

Original HF magnetic loop antenna designed by the author to work in conjunction with QRP transceivers like the FT-817 in portable operations. In this configuration the loop can operate from 30 to 10 meters. Using a two spires radiator of the same diameter it also covers 40 meters.

Portable 40m CW Transceiver

ZL2CTM

Homemade portable transceiver for the 40 meters band.

AircraftScatterSharp

W3SZ

Aircraft Scatter Sharp is a windows application to calculate and assist airscatter operations. Real-time capture and display of plane position data derived from internet plane servers, highlighting of aircraft near the ideal position for scatter, Real-time estimation of Doppler shift and its rate of change.

3B7M St Brandon DXPedition

3B7M

Saint Brandon expedition 3B7M 2023. Official web site

HD8M Galapagos

HD8M

March 1-11 2023 DXPedition to Galapagos, Santa Cruz Island SA-004

Top Amateur Radio Websites – Issue 2317

DXZone

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May 1, 2023

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20 W HF Power Amplifier

IN3OTD

A HF power amplifier with a push-pull of AFT09MS015N. The (small-signal) gain of the amplifier is around 26 dB in the lower HF band and goes down to about 24 dB on the higher end and still around 21 dB at 50 MHz. Its input matching is relatively good at the lower HF and degrades above 10 MHz.

Tri-Band VHF/UHF Antenna Design

WB6IQN

The TBJ-1 – a triband base antenna was published in March 2017 QST. This antenna covers 2M/220 MHz/70cm in one 6ft 3/4 inch PVC pipe and requires no radials.

Building The Fox-in-a-Box

WB1FJ

Raspberry Pi Telemetry Station project by Burns Fisher, WB1FJ , Chris Thompson G0KLA/AC2CZ. A step by step guide on Building a Fox-In-A-Box The Easy Way, A Prebuilt SD Card Image or from scratch.

Aircraft Scatter ACS

SM6FHZ

Getting started with Aircraft scatter, defined as the process of scatter radio waves of the body of a traveling aircraft in order to enhance the distance possible to bridge on VHF, UHF and microwaves. The ACS path, Equipment requirement and Operating techniques

Airplane scattering

W3SZ

Operating on Airplane scattering. Scattering of radio signals by airplanes. An introduction to operating ariplane scattering, using aircraft to redirect RF that would otherwise be lost in space. Antenna Pointing, Doppler Shift/Digital Modes, using digital modes to operate airscatter.

Taking a look at the 900 MHz band

KB9MWR

Use of the band as Amateur Radio is secondary in this band to federal radiolocation systems, industrial, scientific and medical devices, federal fixed and mobile systems and the M-LMS. Bandplans for hams. Allocation in 902 – 928 MHz

Thevenin equivalent calculator

PA2OHH

The Thevenin equivalent simplifies a complex circuit into an equivalent circuit with a voltage source and resistor for easy analysis of voltage and current at any point in the circuit. Use this online Thevenin calculator

Top Amateur Radio Websites – Issue 2316

DXZone

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Apr 23, 2023

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Two elelemts Telescopic Yagi for 2 Meters

Two elements Telescopic Yagi for 2 Meters

VK1AD

A lightweight PVC hand-held telescopic 2 element 2m (145 MHz) Yagi using two pairs of TV rabbit ear antennas as the driven and reflector elements. Approximate directional gain is 5dB.

Portable HAM radio station

OE6GUE

Guide to setting up a portable ham radio station, selecting the right components and buying the correct ones, finally setting up and assembling the whole elements.

160-80-40 Metre Trapped V-Dipole

VK4ADC

A Trapped dipole inverted V antenna for lower HF Bands. Construction details are for temporary installation. Permanent installations will require additional ruggedising and waterproofing however the basic electronics concepts remain the same. This project includes SWR plots for the three bands and pictures details of the homemade traps.

CY0S Sable Island DX Pedition

CY0S

CY0S Sable Island DX Pedition March 20-29, 2023

QRP Dummy Load

N5ESE

This is another variation on the parallel resistor, dummy load. It is perfect for QRP HF operation of 5-watts or less average power, and should be adequate for continuous operation at that level. It’s light and compact, about 2-1/2 in length overall.

Resistor combination finder

IN3OTD

If you need a non-standard resistor value you could probably realize a close match using two resistor. If you use two resistor in series it is quite easy to figure out which values give the best match; on the other hand, using a parallel connection it is not so easy (at least for me) to find a good combination. This resistor calculation tool shows which combinations of two resistors (series or parallel) gives a match better than the closest standard value, for the E12 (10%), E24 (5%) and E96 (1%) series.

An introduction to YIG Tuned Oscillators

MicroSource

The YIG Tuned Oscillator (YTO) is the only direct signal source to provide multi octave tuning bandwidths in excess of 10 GHz. Common tuning ranges are from 2-10 GHz, 8-18 GHz and 10-20 GHz. YTO is are also known for their superior phase noise and exceptional tuning linearity.

Top Amateur Radio Websites – Issue 2315

DXZone

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Apr 18, 2023

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How to find out if your choke works

VA3KOT

How many times have you heard the advice to coil a few turns of coax at the antenna end to form a choke. How to find out if your common mode current choke really works

3Y0J Bouvet DXpedition Web Site

3Y0J

DX Pedition to the Bouvet Island official web site featuring all latest news and updates from the most remote uninhabited place on Earth

The Weird Antenna Wire End Effect

VA3KOT

A half wave wire that is tuned for resonance on 80m will NOT be resonant on 40m despite a precise harmonic relationship between the two bands. The End Effect is caused by a capacitive coupling between an unterminated wire end and the ground.

3Y0J Log Online

3Y0J

3Y0J Club log Log Online page for Bouvet Island DXPedition 2023. Logs will be uploaded when conditions will permit.

End-Fed Half-Wave Antenna for 20m 40m 80m

VA3KOT

How to Design and Build a Field Expedient End-Fed Half-Wave Antenna for 20m, 40m and 80m. This Shorty 80m EFHW comprises a 49:1 autotransformer (to match the very high impedance at the end of a half-wave wire), a half-wavelength wire for 40m (also a quarter-wavelength for 80m), a loading coil and a short tail wire. The coil and the short tail wire (about 6 feet) make up the other quarter wave on 80m.

Z Match with Toroid

G3VGR

A single coil Z-Match. This QRP version by G3WQW, using a T130-2 toroidal inductor and polyvaricon variable capacitors was published in Sprat 84.

Sound Card Packet

SV2AGW

This amateur radio website explains how to use the free AGWPE utility program to send and receive packet data using the sound card of your PC. Note that AGWPE is a Windows-only program. This website, which is hosted on SV2AGW’s web site, focuses on support for the sound card packet features of AGWPE.

Phased Array Antennas

YO3DAC

Phased array antennas are composed of multiple individual antenna elements that can have their phase and amplitude controlled to steer the main beam direction in real-time. They are used in radar, communications, and electronic warfare, and offer improved gain and reduced side lobes. A comprehensive document on Phased Arrays include techniques to increase the Antenna Gain and change the Radiation Pattern

UK Scanner Frequencies

m3gnn

UK frequency list provide reference table to lister to Police scanner channels UHF VHF, Amateur Repeaters, Ambulance CB Radio CoastGuard Rescue, marine VHF, Military and more.

40 dB Tap Attenuator

N5ESE

A 40 dB tap attenuator taht need only dissipate 2.3 watts, while delivering the same 0.02 watts to the input sensor.

Top Amateur Radio Websites – Issue 2314

DXZone

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Apr 9, 2023

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Magnetic Loop 600 KHz-4MHz

AA8C

The antenna is built on a cross-shaped frame with spar width (and height) of 48 inches, providing a height of 52 inches and a width of 49 inches. This antenna costs only about $45 to construct and can be built in just a few hours using simple hand tools. The best part is that the performance on 160M and 80M is excellent

Build the K1FM-Loop

K1FM

The latest version of the K1FM-Loop is electrically similar to the previous one, but it is designed around off-the-shelf parts or, more generically, items you can readily order online. This antenna relies heavily on 3D printing.

VARA

EA5HVK

VARA HF is a soundcard modem that can be found on the HF bands exchanging traffic (Winlink). VARA implements an High Speed Data Mode and comes in 2 separate programs VARA FM and VARA HF. VARA is a High Performance HF modem based on OFDM modulation. VARA Modem, brings state of the art Military grade technology to new and existing HF data. Introduces a new standard of technology available for Amateur and Commercial use. Designed for operation within a SSB Bandwidth of 2400 Hz.

30m Half -Size Rotary Dipole

G3YEU

A rotary dipole antenna for 30 meters band. Each arm is about 12.5 ft and is constructed from telescoping fibreglass flag/fishing poles and short lengths of aluminium tubing. Two short lengths of glass-fibre rod were used to insulate the arms from the supporting hardware.

A switched Capacitor Audio Filter

AA8C

Here is a rather nice audio filter for use with Ham Radio gear. It features switchable operation as a -32 dB per octave low pass or notch filter having a 200Hz-2500Hz tunable cutoff frequency, buffered input and output, switch selectable filter bypass function, and good stability. T

CubeSat 101

NASA

A free PDF from NASA about cubesat. Basic Concepts and Processes for First-Time CubeSat Developers. A great introduction document dedicated to Cubseat developers.

CubeSatKit.com

CubeSatKit

This website provides kits, parts, and resources for building and launching CubeSats for amateur radio use.

Scout Activities – Amateur radio

Scout Association UK

Radio Scouting at the Scout Association England UK. What to expect and What you will learn, Fun facts, Handy hints

CubeSats and FUNcube

RSGB

RSGB page dedicated to CubeSats and FunCube satellites used by radioamateurs

Top Amateur Radio Websites – Issue 2313

DXZone

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Apr 4, 2023

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Small Loop Antenna for the 80m to 10m

G3JKF

This article describes the development of two tunable antennas each consisting of three interconnected small loops and capable of providing excellent DX performance. The aerials are home-constructed, and located in a very small garden with a minimum of visual impact on the neighbours and are low enough in height to avoid the attention of UK planning authorities.

SAFARI 40-30m vertical Antenna

G3RWF

Roach pole vertical antenna for 40 and 30 meters band featuring good performance on short skips contacts compared to wire dipole

How to call CQ as an HF QRP station

qrper.com

Tutorial, How to call CQ as an HF QRP station in SSB/Phone. Calling CQ Basics, Calling CQ QRP or Portable

Remote solution for TS590s

TK5EP

How to use a small USB DJ controller to remote control the Kenwood TS-590s

A Simple Hybrid Software Defined Radio

AA8C

This Hybrid SDR is a combination of a current technology analog radio techniques, used with a direct conversion software defined radio to create a single conversion “hybrid” radio that is usable over a wide range of frequencies

A JFET preamplifer for 50 MHz

AA8C

The circuit is simple, designed with a low component count and an inherent simplicity in order to keep the cost of building the preamplifier low, and to assure low noise operation.

70 MHz Transverter

OZ1DJJ

This page gives a brief description of a 70 MHz transverter that has been published in the Danish amateur radio magazine “OZ.” This way hams outside Denmark may also benefit from the design.

Top Amateur Radio Websites – Issue 2312

DXZone

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Mar 27, 2023

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A More Efficient Magnetic Loop Antenna

AA8C

The idea behind this antenna was to use multiple conductors in parallel to reduce the resistance losses in the antenna , and thereby improve the efficiency.For a given magnetic loop antenna, doubling the number of conductors from one to two will typically increase efficiency by about a factor of two. There is a limit, and beyond three or four conductors further increases are small, and may not be worth the bother.

The GAWANT Antenna

K1FM

The GAWANT Antenna, or Shinagawa Antenna is an half-wave vertical end-fed in a FT817-friendly package

A Simple Spectrum Analyzer

AA8C

This is a swept-filter spectrum analyzer. Basically, RF and swept oscillator signals are fed to a mixer and the output of the mixer is passed through a highly selective crystal filter.

Antenna too short! Inductivity matching with coil match.

dl7ahw

Wire antenna calculator with inductivity matching coil where length shorter lambda/4

MFJ-434 Voice Keyer

Let this microprocessor controlled MFJ Contest Voice KeyerTM call CQ, send your call and do contest exchanges for you in your own natural voice

All About Scouting – Radio Scout

VU2HWB

Online free HAM Radio course for Scouts, Guides, Rovers, Rangers

A Foxhunting Jamboree

K0OV

Fox Hunting for Scouts. Jamboree can be an opportunity to promote ARDF among Scouts all around the world.

TN8K Congo 2023

TN8K

Dates: Arrival: January 6th , Departure : January 21th 2023 Call sign: TN8K Operators – Petr OK1BOA, Petr OK1FCJ, Palo OK1CRM, Pavel OK1GK , Ruda OK2ZA, Ludek OK2ZC, Karel OK2ZI, David OK6DJ Bands: 160-6m + QO-100

Top Amateur Radio Websites – Issue 2311

DXZone

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Mar 19, 2023

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Spiral Dipole Antenna for 40m

Ivan

This antenna is an off-center fed spiral dipole for 40 meters. The spiral dipole is very compact, making it well-suited for limited space (like an apartment patio), while the off-center feed gives the antenna some multiband capability.

End fed half wave antenna 40/30/20m

TK5EP

For my SOTA activities, i recently bought a QRP transceiver QRP SW-3B, which is a three-band QRP CW only for 40/30/20 m. So, i needed an antenna that would allow to use these 3 bands in SOTA portable activity. Already having some experience with the EFHW antenna, i decided to build one for 40/30/20m.

Six Meter Yagi

IW5EDI

A 4 element Yagi Antenna for six meters band

Microvert Antenna for 40m by ON7IR

ON7IR

A mircovert antenna assembled for the 40m version of the DL7PE antenna. A one meter long aluminum tube with 24mm diameter is used for the base (element 1) and a 50cm aluminum tube with 20mm diameter for element 2 (the extention). A pvc pipe, 34cm long and with a diameter of 38mm, is used to wind the coil on (1mm enamelled copper wire).

70MHz transverter

PA5HE

Homemade 4 meter transverter project

A 7 elements 144MHz yagi antenna

TK5EP

A home made project for a 7 element yagi antenna for the two meters band based on the DK7ZB original desing.

Morse key and buzzer project for Scouts

Radio Scouting

This morse key and buzzer design only requires parts that one may already have or are easy to find on the web. There is nothing critical except that the contacts must meet when the key is depressed.

ARRL – Radio Scouting

ARRL

A web page dedicated to amaterur radio scouting. Scouting and Ham Radio — From Yesterday, Toward Tomorrow. Radio Merit Badge, Morse Code Interpreter Strip, Jamboree on the air