Diy Ham Radio Circuits

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Schematics of all four versions of this design are below

This new circuit was just what I wanted and I began to collect the parts, however, before I could get all the pieces I needed, I discovered another circuit for another bias-T circuit by Alan Bloom - N1AL Low power ( 3 to 30 mhz) transmitters constructed by hams are generally called qrp's . The circuit diagram is based on what was listed as application circuit in the datasheet After all, building a modern fab is astronomically expensive: For example, in 2017 Intel announced it was investing US $7 billion .

When perfect, you can turn the bridge power off-on with no change in sound

You have taken many new hams into the world of building a useful device March 2007 - The AGC-80/30 Dual-Bander - The beginning of a transistor Regenerodyne with audio-derived AGC for 80 and 30 meters . As such, showing a good, progressive image of Amateur Radio, being cool, and all that, dictates that I should be flushed with all the latest digital, solid-state equipment in my radio shack An amplitude modulated (AM) radio signals convey sound signals in the form of electrical data .

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category is a curation of 96 web resources on , 811 Linear Amplifier project, 40m linear amlifier made by 9A6A, HF Tetrode Linear Amplifiers Diy Ham Radio Circuits PCInterfaces In both kit and pre-constructed form . The rig also features colored LCD and front panel backlight Today we do the same thing but there are many smaller suppliers .

Although the ubiquitous LM386 IC was designed to be used as an audio amplifier, it has a number of undocumented characteristics that can be exploited to create simple radio receiver circuits that deliver surprisingly high performance

The first kit I built was one I purchased this year at Hamvention: the Ham Radio Workbench 12 VDC Power Distribution Strip This receiver uses the direct conversion method which converts radio frequency signals directly to audio in a single step . Nuts & Volts is written for the hands-on hobbyist, design engineer, technician, and experimenter The non-inverting pin is connected to the variable resistor of 10KOhms .

This simple 3-pin integrated circuit has always been interesting to me

DIY Antenna Projects Antenna building is an important aspect of ham radio (FEP) circuit based on one recommended by Phil Covington, N8VB, designer and manufacturer of the QS1R Software Defined Receiver (SDR) . After a front end 0 30mhz filter the transceiver uses a 45 mhz first if and The article becomes the hub for all dedicated electronic hobbyists and electronic neophytes, as here they can find all types of interesting electronic circuits, right from simple homemade types to the much professional ones .

Radio stations broadcast on medium-wave bands and send signals into the air all around us

The signal from the antenna (perhaps a few tens of microvolts, or hundreds for a nearby transmitting station) is introduced to the LC circuit either through a small capacitance, or, as in this case, by means of a second coil L2 wound on top of L1, with its other end connected to earth To simplify construction, a low-cost PC board is available from FAR circuits . We all remember the Heathkit of the old days with instructions and complete parts for a fixed price As a youngster I made several crystal radios 1 and one-tube radios, and various amplifiers and many transmitters (mostly illegal!) .

Only a few simple parts are needed to pick up AM radio waves: some electronic components, wire, a paper tube, and a speaker

The radio is put into programming mode by holding 'Phi' button while powering on Suggested Projects Circuits Workshop Craft Cooking Living . The radio stage uses vacuum tubes to receive and produce A 100μF would be a medium-sized electrolytic, like a small power supply filter, and a 100pF would be for radio-frequency .

This is a project of Radio Receiver LW/MW/SW Stereo FM with RDS, using Arduino Nano, Si473x Radio IC and 1

Amateur Radio Operators are often referred to as Ham Radio or simply hams The 10 meters 27MHz CW radio amplifier is equiped with VN66AF transistor produced by Siliconix wich has some BLF245 FM 88-108 MHz RF Amplifier P . This section illustrates what one can accomplish with a little ingenuity This little circuit can put out about 1/2 a watt RF on 160, 80, 40 or 30 meter amateur radio bands (or any frequencies in between and close by, including the infamous shortwave pirate radio band found under the 40m ham radio band) .

1uf capacitor to get the sidetone to work properly if you are encountering issues with it (mostly on a v5 uBITx)

The firmware is responsible for programming the PLL+VCO circuit block with the transmission frequency when the PTT signal is activated and the RX frequency when receiving since the RX frequency is shifted by the receiver first stage intermediate frequency ( I The basic paradigm of this design is to break up the traditional oscillating detector into a separated regenerative amplifier and detector circuit . Similar circuits have been used in many ham radio homebrew transmitters Forty-9er 3W HAM Radio QRP Kit Short Wave Ham Radio Telegraph Transceiver .

There are following basic steps involved in any type of DIY

A QRP DX antenna - amateur radio construction projects Iulian's great 403 ham radio wire antenna compilation can help you avoid these kinds of costs - assuming you know how to use wire cutters, a measuring tape and a soldering iron . Starting with the first amateur, Guglielmo Marconi in 1901, amateurs (or hams as most prefer to be called) have made significant contributions and enabled advances in technology This low-power, direct-conversion CW transceiver covers 18, 21 and 24 MHz, and includes sidetone, spotting and relay-less full break-in --- all on one circuit board! A Balanced QRP Transmatch ARRL Handbook, 1990, pp .

VHF FM Aircraft Receiver is a superregenative receiver developed for listening to FM transmitters but also tunes the aircraft band and the top portion of the FM broadcast band

AM Radio Receiver Using the NE602 Balanced Mixer I even made a special five-tube radio designed to mount in the steering column of a 60 Series scooter . The tuned circuit is set up for the 40 meter Ham band -- approx HamGadgets - If you're a kit builder, you will find a number of kits to make your operating easier .

Each half of C1 is identical and tuned symultaneously

This compact little amplifier is the brain-child of Pat Murdoch, ZL1AXB, in Auckland, New Zealand First patent applications by Hans Hilberling in 1993 for pay-TV applications . Ham/Amateur Radio 2m High Power 300W Amplifier DIY Kit Mar 11, 2015 · This shortwave radio receiver is based on 2N2222 transistors and has and has an operating frequency range between 6 and 17 Mhz .

Jul 6, 2017 - Explore My Info's board Transceiver projects on Pinterest

It is a better way if be a High power out of 5A to 30A according to the size of the transmitter Today, we are demonstrating a DIY project of an AM Radio . To Avoid Overloading the Radio • Use a simple resistive pad (voltage divider) at the input of the radio – 2 Assembly is simple, and doesn't require any soldering .

Radio Communication Ham Radio 40m Cw Shortwave Qrp Pixie Transmitter Receiver 7 023mhz 7 026mhz Diy Ham Amateur Radio from i

Well a field strength meter is sort of like that, in that in its heyday, it was used by Hams and CB'ers to measure the transmitted signal strength of any antenna - from a distance usually 1, 3, or 30 metres or whatever measured distance you had Their purpose there is to block the DC biases but pass the audio, else you'd have DC on the input and output (and fry something) . For those not familiar with the terminology, CW is a mode used by ham radio amateurs YAESU FT-891 HF + 50 MHz All Mode Mobile Transceiver With MH-31A8J Mic .

A Communications Go-Kit (or Radio-Ready-Kit) is made up of a portable Amateur radio station and assorted personal gear that can quickly be assembled to respond to a Call To Service

Next, attach the connector points of the SWR meter to your ham radio Then there were kits being sold by various companies . Mar 03, 2015 · It is an excellent 4-in-1 DIY for electronic beginners The tuning is accomplished with an inductor and a capacitor, and the LM555 acts as an AM demodulator and class-D power amplifier to drive the speaker .

Choose from hundreds of electronic kits or assembled circuits for your DIY , school, or hobby project!

Old-timers have pointed out that these kits don’t hold a candle to the Heathkit projects from yesteryear, but I would imagine that they are still pretty fun and educational Here is a low cost AM receiver circuit that can be tuned from around 550 to 1100 KHz . Amateur radio is the only hobby that offers its licensed operators the chance to legally design, build, and operate high power radio transceivers connected to unlimited antenna arrays for the purpo… Suggested Projects Low-cost Near Space Without HAM Radios or Cellphones .

3v filament tranny) connects to the speaker, which is in a seperate box

As late as the 1960s, glowbugs were part of many beginner ham stations Ham radio astronomy was a product of amateur (ham) radio . Inductor L1 is used as a broadcast loopstick-antenna coil whereas capacitor C1 is set for tuning The next circuit is the preselector, switchable to the MW and SW ranges .

 This circuit may be implemented into the JVComm interface shown above as discussed in the

Ham radio transceivers are available in a variety of styles by a number of different brands Posted by dapj20 on Aug 18, 2021 in Magazines, Projects . This time I will show you how to make a relatively simple All band Radio Receiver which is based on the Si47xx series chip of Silicon Labs Many a good QSO has been wrecked by that high pitched crackling noise that is common on weak signals .

The first circuit in Figure 1 is very simple, just consisting of two NPN transistors! It works by using the 50Hz mains voltage that is induced into your body by nearby mains wiring to provide a small base current which switches

The diagrams, images and screen shots below detail the development of a simple modular radio receiver based entirely on circuits and devices studied during the Part IA course on Linear Circuits and Devices FM Radio Circuit Design: The FM Radio circuit mainly consists of LM386 IC . 100W UHF 400 470MHZ Amplifier Power Amplifier Board For The original circuit was designed by Dave Joseph, W7AMX based on the earlier Micro-80 mini-transceiver by Oleg Borodin, RV3GM .

Z-Match Antenna Tuner project - This Z-Match is a link coupled all-band tuner

DIY Kits HAM RADIO 40M CW HF QRP Pixie Transmitter Receiver 7 You just need to read the following sections carefully and follow them word-by-word . com writes: This article shows you how to build a very simple FM transmitter from thirteen components, a Printed Circuit Board (PCB) and a 9v battery HAM RADIO VHF/UHF MOBILE INSTALLATION by Mike Baker, W8CM .

Here are some simple CW touch keyer circuits for making your own CW touch paddle key

Sep 04, 2021 · However, among all these diy shortwave radio we will rate the highest to the LJJDSLYU S-Pixie HAM Transceiver Radio Shortwave Telegraph 40m Super CW QRP 7 Prototype an Electronic Coin-toss Step 3: Connect . These are low-res GIF graphics sized for more-or-less on-screen viewing, without excessive scrolling, on 600x800 pixel or larger screens Position L1 close to the antenna of any medium wave coil, outside the receiver .

99 30% Off Geekcreit® DIY 3V FM Radio Kit Electronic Learning Suite Frequency Range 72MHz-108

An Amplitude Modulation (AM) loop antenna can extraordinarily improve the AM radio reception You can also replace the 1K resistor at R250 with a 10 K resistor to increase the sidetone volume . The circuit in the figure below is an integrated circuit AM radio containing all the active radio frequency circuitry within a single IC You will find here antenna, Balun, traps, endfed or transformer DIY kits and parts .

The mis-match conditions for adjusting the protection circuit, is easily created by connecting the RF power amplifier to a 50 ohm dummy load with a 1 m long RG-59 cable (1/4-wl

Two immediate differences are: A regulated DC supply for better frequency stability and a 2-pole low-pass filter for reduced harmonic output The crystal under test is placed in an oscillator circuit . There are a lot (25) of TTL integrated circuits in this keyer We carry a good selection of schematics service manuals for vintage cb radios .

Electronic Circuit Design Electronic Kits Electronic Schematics Electronics Basics Electronics Projects Electronics Components First

Current at this power is 10 amps if transmitting carrier but only 2 Sometimes it comes in louder than the voice and makes it impossible for you to hear your partner . Ham Radio BFO by VU2AAP Regular broadcast receivers are meant for reception of AM signals Aircraft headphones are optimized for the high-noise environment of an airplane—the earmuffs keep the ambient sound (noise) out and the microphone is designed to let only the pilot's voice in .

So instead of designing the elusive zero-latency with complete noise immunity circuit here is an alternative: Do it in software

HamShield lets your Arduino talk to far away people and things using amateur radio bands (Coverage: 136-170MHz, 200-260MHz, 400-520MHz) Project Owner Contributor The second uses a West Mountain Radio Rig Runner which offers ease of construction and a cleaner appearance . For this reason the LM386 is able to oscillate in the medium wave AM band (540 to 1600 kHz), making The circuit for this receiver is shown in Figure 2 .

This page contains circuit diagrams and construction notes for various projects including Amateur Radio Tranceivers (for VHF and HF), solar and wind power regulation and links to pages with other electronic circuits

You can use this receiver with the any FM transmitter In the early years of amateur radio, long before factory-built gear was easily available, hams built their own transmitting and receiving equipment, known as homebrewing . Mar 23, 2020 · Steps for making the Circuit: Here are Some Pictures for making the Circuit You could even get a handheld ham radio in some cases and start your ham radio operations immediately .

The antenna side of the tank circuit is fully symmetrical

Harbach Electronics -Yagi Antenna Building Hardware, SB Each of the hams is given a call sign or station identifiers like WA2DHF, W3ABD etc . Because of Good performance, the output voltage of 13V to 14V depending on the load They're getting very rare these days; you may end up using a cheap plastic tuning cap from a small transistor radio, etc .

Antennas for Ham Transmitters - Describes how to construct various type of antenna for Ham Radio Transmitters

HAM Equipment 1-30Mhz Shortwave Radio Magnetic Balance Kits adopts large-size high-quality nickel-zinc magnetic ring, which can work in the short-wavelength range of 1-30MHz For a coil form I used a pill bottle I got at a pharmacy . Simultaneously point and adjust L1 near the radio for getting the most effective coupling UPC: 6959011519398 Product ID: 11712176532 Variants ID: 51475656532 .

The SignaLink USB Interface is a USB powered device that contains a sound card and VOX circuitry that keys the radio PTT whenever the digital mode software goes into transmit and produces audio

It switches on a light emitting diode (LED) if the crystal is working If it is working, an RF voltage will be present at the collector . 1 You can house the receiver in a readily available RadioShack plastic project box Some circuits would be illegal to operate in most countries and others are dangerous to construct and should not be attempted by the inexperienced .

I happened to have some nice little old-fashioned mesh-plate tuning capacitors for this project

Circuits for such instruments are found in the standard handbooks The simplest radio receiver, known as a Crystal Set, consists of nothing more than a coil, tuning capacitor, diode detector, and a pair of earphones . Schematics and Service Information usually runs 12 to 70 or more pages per CB model The parasitic suppressors are made from silver plated wire, 6 turns on a 1/4 inch form and paralleled by a 100 ohm 2 W non-inductive resistor ending with the ceramic plate caps .

They both agreed on the modifications and promised to contact each other at the same time the following day and then signed off

Home (en)-> Ham Radio : DK7LG : Up to the new millennium the combination of private knowledge and its implementation into creative products is preserved I might have already passed my Advanced, but hadn't received it yet and only had Novice band crystals anyway . Projects are in E-Books which need to be downloaded and run LM- Base Base Mount With Mic Holder For All Transceivers .

It must be able to withstand high voltage (3000 volts), even for just 100w operations

This idea is for cooling fan for radio communication at car You may be wondering how all this is accomplished with a 555 . For the Battery section, fill out the available fields according to the specifications listed for your battery Simple Radio PTT To Computer Interface Circuits SSTV, PSK31, RTTY, CW, EchoLink, eQSO etc .

In this small article I will present a quick and dirty hack to build an electronic CW iambic keyer in 5 minutes

The faux-wood case hides a hybrid of the modern and the ancient The receiver is amazingly simple using only one transistor for the receiver section and one IC for the audio section . Get it as soon as Mon, DIY Radio FM Receiver Kit - MakerFocus Digital Radio Build Soldering DIY Electronics Kit Project for Beginners Kids Students Adults to Learn HAM Radio CW Shortwave Transmitter Receiver Forty-9er 3W CW Shortwave Radio Transmitter And I highly recommend this high-current power supply circuit .

Building your ham radio does not have to be complicated

My Favorite Amateur Radio Projects One often overlooked opportunity, among all the ham radio projects you would like to take on, is the so-called antenna tuner Easy…just see if the make and model number of your HAM / Scanner-Momitor/ CB radio is listed below . Jul 31, 2019 · Poke a hole in the tube at a point 1/2 inch from the end and another hole, in line, 1/2 inch from the first You are about to report the project DIY SW , MW , SDR Radio with ESP32 and Si5351, please tell us .

HAM Equipment 1-30Mhz Shortwave Radio Balun Kit NXO-100 Magnetic Balance Amateur Radio Antennas DIY

What other modes have remained as popular standards using standard ham equipment and continuously in use by amateur radio operators as CW? My GRC-9 was designed near the end of WW2 (circa 1945), and was in continuous production for various armed forces around the world until around 1974 (3 decades is a long production run) The National Association for Amateur Radio (ARRL) is a great resources to find a location in your town . This wonderful radio is is primarily a result of the hard work of Ricardo Caratti who creates the detailed library for the Si47xx chip, Gert Baak for the initial TFT code, and Thiago Lima which creates the Kit with a TFT touch display This Ham Radio podcast deep dives on making, DIY, electronics, and technical topics of interest to the amateur radio operator .

In the article describing the circuit, AD5X says, A receiver protection technique that has been around for years is to use a small incandescent lamp in the receive path followed by shunt back-to-back diodes

Featuring 12 to 20 Watts of output power (depending on DC supply), full DDS frequency generation, covering 6 major frequency bands (1 In 1952 Les Moxon published this Genius Design in QST July Issue . I've been on a search for two types of fused Anderson Powerpole distribution panels: a portable one for the field with at least 4 ports, and a large one for the shack with 12-16 ports and at least two USB 5VDC ports In most respects it is a typical grounded grid linear amplifier, with the exception of a rather unique tuned cathode input circuit that was developed by Pat over 10 years ago .

The key major components would be: QRP Labs has designed an impossibly low-cost, high performance transceiver with the QCX

Figure 2 The LM386 can be used as a tuned radio frequency receiver Jul 14, 2021 · Collection of Amateur Radio Homebrewing Projects . It has such tremendous reviews that it will match anybody’s taste easily May 14, 2016 · As I stated, 100% duty-cycle at 60A is the objective under normal use while operating in TX mode with ham radio transmitters .

High Performance Regenerative Receiver - Ham Radio Homebrew Projects

Electronic Circuit Schematics Note that all these links are external and we cannot provide support on the circuits or offer any guarantees to their accuracy Dec 01, 2011 · Iambic keyer with Arduino, in 5 minutes . The famous bi directional amplifiers are used in the bi directional ssb sections of the radio Good handheld radios that can be used as a transceiver include several Baofeng and Yaesu devices you can find online .

80 meter ham radio sw receiver am circuit based on tda1572 9v block diagram two transistor 2020 tech study guide schematics and circuits kenwood the schematic rf amplifier converters simple aircraft 10 to 15 mhz transmitter

Electronic Rainbow Kits - 2M, 10M, 220MHz FM Receiver, Code Oscillator, VOX, Radio DF, Pre-Amps I bought “Blue-0-1-60MHz-20MHz-2-4GHz-RF-Signal-Frequency-Counter-Cymometer-Tester” on ebay . The transistor T1 works as a feedback regulated HF-amplifier and Pictured above is a little AM superhetrodyne receiver that covers the broadcast band from 550 Khz to 1650 Khz .

The T106-2 (red) toroid is L1 in the schematic diagram

The 24 gauge wire happened to allow me to nicely fit 40 turns on the T106 core (L1) The following circuit is used in applications of WinRtty for transmitting RTTY signals using the sound card . added 24 Jan 04 #133 Glass-Jar Crystal Receiver JPG File(s) Page 1 HF Kits offers you DIY kits and spare parts for ham radio amateurs .

listening to discussions about radio on the ham bands using the trusty Knight R55 Receiver

The link to his site is shown in the description below What attracts a lot of people to amateur radio is that it gives you the ability to make your own gear . AMECO AC 1 transmitter DIY Do It Yourself REPLICA KIT As designed, the internal Fan cooling offers 102CFM at the highest 190mA setting, which will provide a forced-air cooled environment internally, exiting hot air out the top panel fins .

Basically the hobby involves a person in making his own gear consisting of a receiver and transmitter or a transceiver (a receiver and a transmitter in one unit) after procuring a licence from the Ministry of Communications

99 Emitting portion utilizes the oscillation circuit NE602, and then to do the buffer A few of the more popular ones are Microchip PIC, Arduino boards, Teensy, Parallax, ARM cores, hundreds of 8051 clones, Cypress, Tl’s MSP430, Raspberry Pi, Chip, HummingBoard-Gate, BeagleBone, Intel Galileo, . Since then, handbooks have had fewer and fewer practical details on building radios Solder two 100-ohm precision resistors together in parallel and install them in a PL-259 .

item 6 DIY Kits 70W SSB linear HF Power Amplifier For YAESU FT-817 KX3 Ham Radio 6 - DIY Kits 70W SSB linear HF Power Amplifier For YAESU FT-817 KX3 Ham Radio

Adjust the trimmer cap and the pot very carefully for the best possible null in the noise Fréquence radio ham radio antenna radios diy electronics electronics projects radio amateur qrp electronic schematics diy tv . 1k2 packet radio modem with TCM3105 (vers2) 1k2 packet radio modem with XR2211 1k2 packet radio modem with FX614 (MX614) - schematic Have the following ready to build your own ham radio: A ham radio building or circuit board kit .

LM-10 Microphone attachment for LM-801 Cup Holder Mount

Like amateur radio hobbyists, ham radio astronomers pursue their hobby by building their radio telescopes, sharing information with fellow amateurs globally, and studying electronics, computers, and radio wave behaviors 24V to 220V 1000W DC AC sine wave inverter for photovoltaic solar system . Over 100 new robotic kits, electronic kits, test equipment, snap circuits, science kits, and STEM Approved alternative energy kits 12V to 24V DC converter power supply circuit diagram .

For use on lower frequencies, the values of C1 and C2 might need to be increased

Communicating with a ham radio is a great hobby all on its own, but if you're reading this blog as a seasoned electronics designer, then chances are you'll want more, so here are two paths to take In the 1930s, 40s, and 50s, hams handcrafted reasonable-quality vacuum tube-based transmitters and receivers which were often housed in their basements, and it was common for a well-built homebrew rig to cover all the high . Not to mention the QRN and maybe QRM that could trigger your circuit unnecessarily Hans Summers, G0UPL, is doing a great service to the amateur radio community by designing such a kit .

For such transmitters a well tuned antenna is a must

(Originally published in Amateur Radio, January, 1992 ) Introduction In an earlier issue of of Amateur Radio, I described a superheterodyne receiver for the VLF-LF bands, This was followed by a series of articles on front end tuning and loop aerials for these bands The plate choke is a simple 3 to 30 MHZ variety with a value of 55uH . By a definition, an interface is a shared boundary or connection between two dissimilar objects, devices or systems through which information is passed Diy Ham Radio - File Diy Hamradio Power Supply Unit Jpg Wikimedia Commons .

Jul 08, 2013 · A recent news story about the 50th anniversary of WWVB got me to thinking about building my own WWVB receiver

Apr 12, 2017 · A great thing about ham radio is that you can spend literally as much or as little as you can afford and still enjoy the hobby Welcome! This website is built to provide the clear and straightforward guides on how to build an antenna, aimed from complete beginners to experienced builders and HAMs . Two models available, one that used the computer soundcard and DB9 connection, the second has a built in soundcard and connects via USB Low power ( 3 to 30 MHz) transmitters constructed by hams are generally called QRP's .

The radio should be programmed with slow computers (recommended processor rate 166 MHz or less) under MS DOS

MAXTRAC LAB Radio Service Software Professional 600 Series CPS (MPT1327): Prof MPT CPS R00 This is a very small volume of simple 40 meter band micro-power amplitude telegraph transceiver . A typical circuit diagram for a Crystal Set Radio is given below where inductor or coil L1 is tuned by variable capacitor VC1 to the transmitter frequency These electrical data changes over to sound data with the help of some external devices .

In the pic you will see a circuit board strapped to the back of the radio

The entry low capacitance of MOSFET modern, with two gates, will create negative The basis of this tutorial is a combination of my engineering education, 60 years in ham radio, my work as vice-chair of the AES Standards Committee working group on EMC, and extensive re- search on RFI in the pro audio world where I made my living . 6E5 6L6 6P3 6P3S 6P7S Amateur radio breadboard transmitter Bug CallBook DIY Projects DIY Tube Radio Sites Do it yourself FireBottles GK-71 GK71 amplifier gk71 tube GKE-100 grounded grid GU-50 gu50 tube ham-radio Handbook HF amplifier Iambic Paddle Linear Amplifier MP3 Pirate Radio QRO QRP operation qrp transmitter radio transmitter circuit SKN A reflectometer-type SWR meter can be calibrated to give power back and forth (PF, Pr) on a power supply .

The 1986 ARRL Amateur Radio Handbook reported that hardly anyone was building homebrew ham receivers Sep 10, 2021 · Building your ham radio does not have to be complicated . In fact, you will likely enjoy it more by building your own simple equipment, and then making contacts with it Your hosts George KJ6VU and Jeremy KF7IJZ discuss current developments in ham radio while introducing listeners to a plethora of topics and skills such as test equipment, 3D Printing, Arduino, Raspberry Pi, and more .

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