Blog Archives

Bencher Paddles and Memory Keyer UNITE!

As soon as I get my Yaesu System Fusion FTM100-DR online, I want to mate my Bencher paddles to the new MFJ-490X Menu Driven Memory Keyer that I picked up at the 2016 Dayton Hamvention last week (May 21, 2016).  I am itching to get these two toys working in some CW / More Code Contesting very soon!  5 programmable memories plus all sorts of keyer speed, weighting, side tone, hand key capability, serial number decrements, random code practice, iambic settings, etc.

(See video below!)

MFJ-490X Memory Keyer  Instruction Manual

 

 

Advertisements

Crystal Radios. A blast from the past!

Many of us have looked at, or even built a crystal radio set at some point in our lives. Maybe it was in our Scouting days, youth group, science class, science fair… or just to DO IT!  The circuit itself is relatively simple to wire-up.  A long piece of wire acts like an antenna.  Some configuration of earphones or speaker will let you listen to signals.  And believe it or not, the signals are all around you!  The local AM radio station should be easy to hear.  You can even build a simple pre-amp (pre-amplifier) circuit to boost the incoming signal to add extra volume and signal strength to the fun.

Let’s understand WHY a crystal radio set is sooooooo cool!  SIMPLE CIRCUIT DESIGN.  EVEN KIDS CAN DO IT!  EASY TO GET PARTS.  NO EXTERNAL POWER REQUIRED.  INTERCEPTING INVISIBLE RADIO WAVES THAT ARE ALL AROUND US.  Plus, it’s just a pile of fun!

Here is a YouTube video from WonderstruckHow who teaches us to build a very rudimentary crystal radio set with parts that are easy enough to scrounge up.

After you watch the video check out the picture gallery of all sorts of crystal radio sets that can be built in just a short time.  They are great for kids working on a science fair project (and sure beats out a terrarium!)  Some of us “Seasoned Citizens” might actually remember the paper towel tubes or Quaker Oat cardboard cans we wound the magnet wire around and even some of the commercial kits sitting under our Christmas tree!

What Is D-Star All About?

Yaesu has System Fusion… guess who has this thing called, D-Star?  You can probably guess pretty quickly, if you don’t already have an idea.

Discover D-STAR from Icom

Yaesu System Fusion Introduction

Cory Sickles (WA3UVV) is active in our local ham club, Monongalia Wireless Association, and he has been guiding us in installing a new Yaesu System Fusion repeater system up on Chestnut Ridge.  Are you wondering what Yaesu System Fusion is?  What is C4FM?  What is the difference between Fusion, D-Star, P25 and DMR?  Well… here are a couple videos that might give you some insight into primarily Fusion… but the second video looks at some comparison.  (Spoiler alert… it gets territorial quickly.)  Hats off to HamRadioOutlet and HamRadioNow for spending the time on these cool systems!

How Do I Read a Schematic Diagram?

How to Read a Schematic by RimstarOrg 

If you are going to build a simple crystal radio, a QRP rig or even a 100 Watt HF transceiver, you are going to want to understand how an electronic schematic diagram is read.  It’s not that difficult.  RimstarOrg has a great video on understanding the basic concept of reading a schematic.

 

Multimeter Tutorial by AfroTechMods

THE BEST Multimeter Tutorial

The voltmeter… the Volt-Ohm Meter… the Multimeter… digital or analog… continuity… amperage, voltage and ohms… COME ON, MAN!  What is it and how hard is it to use in the every day life of a ham radio enthusiast or just someone working in their workshop?  Once again, Afrotechmods has an excellent tutorial on his YouTube channel for us to learn from!

 

 

Monitor your Ham Radio transmitter with an oscilloscope with W2AEW

More O-Scope training!  This guy is so good at teaching it!

Heil Pro 7 Headset from 2015 Dayton Hamvention

Pro7-3-B

Having lost a signification amount of higher frequencies in my hearing over the years, I added this to my WT8WV station. Bob Heil spent a few minutes with me on how to set them up with my Icom 761. He’s a great fella! Can’t wait to get them on the air!

The Pro 7 offers a feature set that compliments the Heil Sound standard for headset design. Unlike copies of various aviation type headsets, the PRO 7 is not a copy. It brings newtechnologyto the headset industry. The 2″ thick gel foam ear pads provide extreme comfort for extended periods of time while exhibiting passive noise reduction rated at -26dB, ideal for use in high ambient noise environments. Using technology Bob Heil learned from Paul Klipsch back in the early 70’s, the ear cup enclosures were tuned to the free air cone resonance of the speaker cone thus providing very low distortion with maximum voice articulation providing the ultimate sound reproduction for communications. Theexclusive Heil Phase Reversal system (HPR) allows you to acoustically move the signals forward and creates a spatial widening of the sound field. This feature makes it easier to pull a weak signal from a pileup – useful for DxPeditions and contests as well as a stress reliever as your change the phase angle of the program source. A speaker balance control allows preferred level between the speakers.

The PRO 7 has interchangeable microphone system allows the microphone element to be easily changed in the field for different types of applications. The low distortion Dynamic HC-7 element exhibits a frequency response of 100 Hz – 12 kHz with the -3dB points at 100 Hz and 12 kHz. The traditional Heil speech articulation rise is centered at 2K -4KHz with properly balanced highs and lows. The impedance is 600 ohm. The HC-7 is one of our best microphone elements for speech articulation.

Designed exclusively for iCOM radios, the iC Electret element has a -3dB fixed point at 35 Hz and 12kHz with the sensitivity of-48 at 1500 ohms output centered at 1kHz. The iC element solves the problems with LOW GAIN ICOM radios but can also work with great results on newer Icom models. Bias power is applied to operate the iC electret element. The Pro 7 iC is supplied with our ADl-iC eight pin iCOM adapter cable.

The Pro 7 and Pro 7iC come in black, red, blue or pink.

The balance control located on the LEFT speaker, controls only the left speaker. Begin by setting a comfortable right side speaker level with the AF gain of the receiver. You then adjust the left side speaker where necessary to balance the audio between the speakers. In most cases the balance control will be close to or maximum.

http://www.heilsound.com/amateur/products/headsets/pro-7

Best Way to Coil Coax and Audio Cables

Any one who has EVER coiled wire, coaxial cables, audio cables or even a hank of rope knows UNCOILING it has at one time or another created a “rats nest” of tangled mess that will increase your blood pressure, makes you exceedingly cranky and often has caused Tourettes-like symptoms.  Fighting an unruly coil of coax or audio cable wastes a lot of time when setting-up a gig, a Field Day site or even coiling a power chord at home!  Having spent years working in television studios, control rooms, and other audio gigs on a daily basis, I learned early on from the engineers that there is ONE way to coil cabling… W2AEW shows that in his video!  (P.S.  Engineers can be especially grouchy if you don’t coil correctly and THEY get to untangle YOUR improperly coiled rats-nest from a previous gig tear-down as they work on an important production. Time is money.)

10 Most Popular Microphone Wiring Diagrams

HEADSET1            micdiagram2922

This is an excellent article from QRZNOW.COM showing the pin-outs for the 10 most popular microphone cables.  This QRZNOW website is a huge resource for hams everywhere.  Click article link below for full article and wiring diagrams…

10 “Most” Popular MIC Wiring Diagrams

Solder Up an XLR Audio Cable

If you are going to connect audio equipment devices you will most likely run into the XLR male and female connectors at some point.  Or maybe you need to repair a cable that is no longer working.  This video is a good example of how to make the proper connections!  It’s not difficult to do.

Heil Sound lets me hear the world!

download

For those of us Hams with old ears, I highly recommend looking into Bob Heil’s solutions for professional quality headsets.  I have an older Heil headset I used many years ago but now am considering the model below for added quality as my hearing ability is considerably lower than it was… really thinking about either the Pro-Set or Pro-Set Elite model.  Bob Heil is a legend in professional audio and worked with Joe Walsh, Peter Frampton (Bob invented Frampton’s “Talk Box”), Jeff Beck, Slash, Richie Sambora and The Who… so he KNOWS audio!  Also, check out the video below that tells what the audio industry thinks about Bob Heil… and hear some of the great music he was responsible for.

Click link below for the Heil Sound website…

http://www.heilsound.com/amateur/  

 

PSE-trans

Ham Nation Episode 36: Connect An Audio Mixer To Your Transmitter

Another great YouTube show!       Ham Nation

This episode speaks about hooking up and audio mixer to your transmitter with Bob Heil and Gordon West, et al.  Every show is packed full of information about many different facets of the hobby.  Watch them all! (Segment begins at 41:45 in the video…)

Hosts: Bob Heil (K9EID), Gordon West (WB6NOA), George Thomas (W5JDX), and Leo Laporte (W6TWT)

 

 

 

Simple Station Monitor for Ham Radio using an Oscilloscope

W2AEW does a FANTASTIC job of explaining all sorts of nifty concepts in Ham Radio.  I follow his videos on YouTube and spend many evenings learning from this fine gent!  I also have some of his books as reference material.

I am gonna HAVE a scope some day!

 

 

 

 

Eurorack UB-1202 Audio Mixer Review

This is the 12-Channel audio mixer I picked up at the 2014 Dayton Hamvention Flea Market for $50… and I love it!

 

The DI… Direct Box

Do you need a DI (Direct Box) when mixing audio?

 

Setting Up a Little Mixer

Nice little mixer…

How To Mix Audio

This video will help explain how to create and audio mix with a mixing board.

 

 

<iframe width=”560″ height=”315″ src=”//www.youtube.com/embed/KHZhDA1T2NI” frameborder=”0″ allowfullscreen>

 

Connecting Devices To Your Audio Mixer

This video can be helpful when connecting gadgets to your audio mixer to route to the speakers.

 

Using a Small Audio Mixer for Ham Shack

I picked up a small used 12 channel audio mixer at the 2014 Dayton Hamvention Flea Market for $50 and plan to route all sorts of audio from my radios and computer through my ham shack.  Here is a simple explanation of how an audio mixer can be used.

 

playwithlifeorg

4 out of 5 dentists recommend this WordPress.com site

BG5TLA's Blog

Just another WordPress.com site

Tinkertoytech's Blog

Just another WordPress.com weblog

KC4LMD

Chronicling my pursuit of amateur radio’s "Worked All Neighbors" award

Casey's Place

"When we try to pick out anything by itself, we find it hitched to everything else in the universe." -- John Muir

Hackaday

Fresh hacks every day

VK4JAZ

Writings about Amateur Radio

Tactical HF

I love the smell of ozone in the morning...smells like...radio.

WB5RMG : RadioActive Blog

slightly sub-orbital testing facility

73, de N2HTT

A blog about ham radio, Linux and more...

Ham Radio Blog PD0AC

Thoughts of a Dutch radio amateur

Silver Bells Blog

Truth Appealing...

CQ de WT8WV... GraHAM's Dits & Dah's

My journey in amateur radio intrigues and hobby interests

K5UNX Ham Radio Blog

A blog dedicated to things Ham Radio related

Mountain Mists...

A pleasant journey into how I see things... big and small

playwithlifeorg

4 out of 5 dentists recommend this WordPress.com site

BG5TLA's Blog

Just another WordPress.com site

Tinkertoytech's Blog

Just another WordPress.com weblog

KC4LMD

Chronicling my pursuit of amateur radio’s "Worked All Neighbors" award

Casey's Place

"When we try to pick out anything by itself, we find it hitched to everything else in the universe." -- John Muir

Hackaday

Fresh hacks every day

VK4JAZ

Writings about Amateur Radio

Tactical HF

I love the smell of ozone in the morning...smells like...radio.

WB5RMG : RadioActive Blog

slightly sub-orbital testing facility

73, de N2HTT

A blog about ham radio, Linux and more...

Ham Radio Blog PD0AC

Thoughts of a Dutch radio amateur

Silver Bells Blog

Truth Appealing...

CQ de WT8WV... GraHAM's Dits & Dah's

My journey in amateur radio intrigues and hobby interests

K5UNX Ham Radio Blog

A blog dedicated to things Ham Radio related

Mountain Mists...

A pleasant journey into how I see things... big and small

%d bloggers like this: