Amateur Radio Weekly – Issue 188

mcHF QRP transceiver kit
The choice of architecture is a direct conversion receiver and transmitter, with a small micro-controller to provide control and DSP functions. The analog blocks in this implementation were kept to the bare minimum.
M0NKA

Prepare to get your grid on
What’s your grid square? Be prepared to answer that question a lot in 2018. The ARRL International Grid Chase 2018 has begun.
ARRL

Amateur Radio: Narrowband communications in a broadband world
My day job is focused on wider bandwidths and higher frequencies. Then I go home and play amateur radio which is a narrowband, low frequency activity.
K0NR

D-star, DMR, Fusion, Which is right for you?
Each of these modes has a place and my goal is to help you decide which one fits you the best.
K3DO

An Antenna in Every Pot | AO-40
You start out shopping with the group for antenna parts at the local electronics surplus store as the entire plot of this segment was that spacecraft don’t have to be expensive.
FaradayRF

Keep in touch with the hams in your life and help prevent isolation
The AARP reports that more than 8 million adults age 50 and older are affected by isolation.
KB6NU

Exploring options for DIY waterproofing
TL;DR — Don’t use silicone to pot electronics.
Hack A Day

New digital mode puts beacon off air
The Barossa Valley beacon VK5RBV has been switched off to avoid interfering with stations running FT8.
Southgate

A CODAR advent
Over the last few days, I have been recording CODAR on 4463kHz to produce images of the ionosphere.
EA4GPZ / M0HXM

Yaesu FT-857: No TX audio fix
The symptom was that it was transmitting carrier on FM, but no audio was being transmitted. Embarrasing, and potentially expensive.
Essex Ham

Video

Exploring abandoned Hara Arena
The facilities include a bar pub, ballroom, conference center, ice rink, and 4 exhibition halls. This place is huge!
One Occupied

How to seal coax connectors
This method can be applied to many other applications and works great to keep moisture out of your connectors & antennas.
K5ACL

The Apollo 13 Squawk Box
How astronaut families listened to mission audio via their homes.
FranLab


Amateur Radio Weekly is curated by Cale Mooth K4HCK. Sign up free to receive ham radio's most relevant news, projects, technology and events by e-mail each week at http://www.hamweekly.com.

Yaesu VX8gr APRS problem

I took the dog for a walk today, as you do on new years day. We went down to the beach and then up the headland. Usually I don’t take a handheld with me but today I did, my Yaesu VX8gr which has been up quite a few fells with me and has always been very dependable. Today however I noticed a fault, even though the GPS was on and there was a valid fix the beacon refused to accept the co-ordinates and told me I was at home (I checked back when I got home).

This is a bit of an annoying habit.

A full reset and reprogram didn’t seem to get it to work so I’ll have to search around for a way to solve this. A quick search didn’t reveal users with similar faults. This could be very annoying if I’m out on a fell and using the APRS to report back to Mrs g7kse where I am!


Alex Hill, G7KSE, is a regular contributor to AmateurRadio.com and writes from Cumbria, UK. Contact him at [email protected].

Not so "oldies".

Thanks again to Mike KD5KC for posting these on QRP-L.

You may remember a few years ago (I think it was just a few years ago - maybe 10 years?, or maybe I'm having a "senior moment"?) Icom released a series of comics entitled "The Adventures of Zack and Max".  These were anime style comic books intended (I guess) to get the youngsters curious about Amateur Radio.

Max was a strange little pig companion to Zack - a boy and his pig - go figure.


Anyway, here are their links - both as comic books or as coloring books. If you have any kids or grandkids who are curious about what it is that you do - these may be helpful to explain it to them in a more contemporary fashion.

The Adventures of Zack and Max, Vol 1-7
http://www.icomamerica.com/en/amateur/comic_book/Books/v1/ComicBookV1color.pdf
http://www.icomamerica.com/en/amateur/comic_book/Books/v2/ComicBookV2color.pdf
http://www.icomamerica.com/en/amateur/comic_book/Books/v3/ComicBookV3color.pdf
http://www.icomamerica.com/en/amateur/comic_book/Books/v4/ComicBookV4color.pdf
http://www.icomamerica.com/en/amateur/comic_book/Books/v5/ComicBookV5color.pdf
http://www.icomamerica.com/en/amateur/comic_book/Books/v6/ComicBookV6color.pdf
http://www.icomamerica.com/en/amateur/comic_book/Books/v7/ComicBookV7_Color.pdf

Accompanying coloring books of The Adventures of Zack and Max.
http://www.icomamerica.com/en/amateur/comic_book/Books/v1/ComicBookV1BW.pdf
http://www.icomamerica.com/en/amateur/comic_book/Books/v2/ComicBookV2BW.pdf
http://www.icomamerica.com/en/amateur/comic_book/Books/v3/ComicBookV3BW.pdf
http://www.icomamerica.com/en/amateur/comic_book/Books/v4/ComicBookV4BW.pdf
http://www.icomamerica.com/en/amateur/comic_book/Books/v5/ComicBookV5BW.pdf
http://www.icomamerica.com/en/amateur/comic_book/Books/v6/ComicBookV6BW.pdf
http://www.icomamerica.com/en/amateur/comic_book/Books/v7/ComicBookV7_BW.pdf

72 de Larry W2LJ
QRP - When you care to send the very least!


Larry Makoski, W2LJ, is a regular contributor to AmateurRadio.com and writes from New Jersey, USA. Contact him at [email protected].

Demonstration: Using FLDigi to Communicate with Olivia Digital Mode on Shortwave

Are you interested in starting out with the amateur-radio digital modes on the high frequencies? Have you heard of FLDigi? FLDigi is a software control and modem suite that interfaces with your transceiver, your computer sound card, and other input/output interfaces so that you can receive and transmit one of many digital modes. For example, FLDigi allows you to operate using the Olivia digital mode.

Demonstration: Using FLDigi to Communicate with Olivia Digital Mode on Shortwave

Demonstration: Using FLDigi to Communicate with Olivia Digital Mode on Shortwave

Unlike the JT/FT digital modes–modes that do an incredible job under marginal propagation conditions–there are other modes that offer keyboard-to-keyboard conversational QSO opportunities that can overcome rough shortwave radio propagation conditions. (The meaning of QSO on Wikipedia: An amateur radio contact, more commonly referred to as simply a “contact”, is an exchange of information between two amateur radio stations.)

While making quick work of getting DX stations into your logbook by exchanging callsigns, a signal report, and a grid square, the JT/FT modes (JT stands for Joe Taylor, the fellow that pioneered these modes) are limited. They cannot handle any additional communications beyond a callsign, a signal report, a grid square, and a very limited set of acknowledgments and sign-off messages.

When you desire to get to know people from other areas of the world, or if you need to establish networks around the world for passing information–perhaps an emergency net in support of the Red Cross–or if you are motivated by any other of a myriad reasons to establish a keyboard-to-keyboard conversation by way of the ionosphere, modes like Olivia are great candidates for your consideration.

In this video, contributing editor with CQ Amateur Radio Magazine, NW7US shares some starting points in the FLDigi software for Olivia keyboard-to-keyboard chat mode.

[embedyt] https://www.youtube.com/watch?v=ejSNfXiT8FE[/embedyt]

Current CENTER Frequencies With 8/250 in MHz:

1.8269, 3.5729, 7.0729, 10.1429, 14.0729, 18.1029, 21.0729, 24.9229, 28.1229, and so on. See the pattern?

By the way: The current suggested CENTER frequency With 16/1000 or 32/1000 on 20 meters is 14.1059.

(Why the …9 frequencies? Experts say that ending in a non-zero, odd number is easier to remember!)

Q: What’s a ‘CENTER’ Frequency? Is That Where I Set My Radio’s Dial?

For those new to waterfalls: the CENTER frequency is the CENTER of the cursor shown by common software. The cursor is what you use to set the transceiver’s frequency on the waterfall. If your software’s waterfall shows the frequency, then you simply place the cursor so that its center is right on the center frequency listed, above. If your software is set to show OFFSET, then you might, for example, set your radio’s dial frequency to 14.0714, and place the center of your waterfall cursor to 1500 (1500 Hz). That would translate to the 14.0729 CENTER frequency.

The FLDigi Manual of Operation is found here: http://www.w1hkj.com/FldigiHelp/

FLDigi can be downloaded here: https://sourceforge.net/projects/fldigi/

Join the Olivia movement:

1. Subscribe to the mailing list: https://Groups.io/g/Olivia

2. Join the Facebook group: https://www.facebook.com/groups/olivia.hf

For additional information on Olivia, check out:

http://blog.nw7us.us/post/168515010062/olivia-digital-mode-great-compromise

http://blog.nw7us.us/post/169114702522/are-you-an-amateur-ham-radio-operator-check-out

73 de NW7US


Visit, subscribe: NW7US Radio Communications and Propagation YouTube Channel

Some more oldies, but goodies

This list was posted on QRP-L by Mike Olbrisch KD5KC - The Radio Boys series.  These books are in the same genre as The Hardy Boys or Tom Swift, but these deal with "wireless" and go back to the early 1920s when Amateur Radio was still in its infancy.


For those of you with a kindle, these can be download for FREE from Amazon.

1. The Radio Boys’ First Wireless
https://www.amazon.com/gp/product/B008476T3S/

2. The Radio Boys at Ocean Point
https://www.amazon.com/gp/product/B004TSAZWM/

3. The Radio Boys at the Sending Station
https://www.amazon.com/gp/product/B004TQF6BE/

4. The Radio Boys at Mountain Pass
https://www.amazon.com/gp/product/B006T5TLSM/

5. The Radio Boys Trailing a Voice
https://www.amazon.com/gp/product/B004TRF6S6/

6. The Radio Boys on the Mexican Border
https://www.amazon.com/gp/product/B004TIJRP8/

7. The Radio Boys on Secret Service Duty
https://www.amazon.com/gp/product/B00AQMGFB0/

8. The Radio Boys in the Thousand Islands
https://www.amazon.com/gp/product/B00AQMZS86/

9. The Radio Boys’ Search for the Inca’s Treasure
https://www.amazon.com/gp/product/B004Z0MNBU/

10. The Radio Boys Rescue the Lost Alaska Expedition
https://www.amazon.com/gp/product/B0058KSAW2/

11. Radio Boys Cronies
https://www.amazon.com/gp/product/B00848O6YQ/

12. Radio Boys Loyalty: Bill Brown Listens In
https://www.amazon.com/gp/product/B004TRO448/

13. The Radio Boys with the Revenue Guards
https://www.amazon.com/gp/product/B004UKEU2A/

So yeah, the stories are a bit campy, perhaps and the language and slang is old - but what the heck? They're free and they're almost 100 years old!

I downloaded them all to my kindle and am enjoying them. I hope you will, too!

72 de Larry W2LJ
QRP - When you care to send the very least!




Larry Makoski, W2LJ, is a regular contributor to AmateurRadio.com and writes from New Jersey, USA. Contact him at [email protected].

HAPPY NEW YEAR…..I have a plan

A belated Happy New Year to all the readers of the blog! So now that we are 2 days into the New Year what is the long range forecast for VE3WDM? While we are on the subject of forecast the weather up this way has been to say the least DAM COLD!! There does not seem to be a break anytime soon with the forecast this weekend temp's are to be in around -30 with the windchill.  Lets warms things up with some 2018 plans. This year Julie and agreed that it's the year to cut back starting with our cable TV that can run way over 125.00 per month. I purchased a small HD antenna and am able to pickup (for free) close to 30 channels. This week the cable company will be getting a disappointing call with our cancellation. We also have Apple TV 4k and pay a minimum for Netflicks and Crave TV. The other cord we are cutting is the eating out which we are planning on moving to only once a month as eating at home is cheaper and can be healthier as well. Regarding ham radio I have all I need and some but my plan this year is to get on the radio and pound out some CW! With the conditions not being so great I have still been able to make contacts both here in North America and over seas.  I worked dam hard over the years to learn CW and get my speed up and it's like a language that if you don't use it you loose it. I am also set up for the digi modes just to change things up a bit. Finally with less TV and going out it looks like I am going to catch up on my ham radio  reading. These are not drum roll type plans for the New Year but it's a start!

Mike Weir, VE9KK, is a regular contributor to AmateurRadio.com and writes from New Brunswick, Canada. Contact him at [email protected].

A little dated

but still fun to look through:

The Archie comic book issue devoted to Amateur Radio - https://kk4dsd.files.wordpress.com/2013/09/archies_ham_radio_adventure.pdf


I don't know if kids read comic books, anymore - other than graphic novels.  I was past kidhood when this first came out. As one who DID read Archie comics at one point, I can confidently say, that had it come out when I was a youngster, it would be dog-eared, and practically worn out from being read so much!

Hope it stirs some fond memories for you!

72 de Larry W2LJ
QRP - When you care to send the very least!

Larry Makoski, W2LJ, is a regular contributor to AmateurRadio.com and writes from New Jersey, USA. Contact him at [email protected].

Subscribe FREE to AmateurRadio.com's
Amateur Radio Newsletter

 
We never share your e-mail address.


Do you like to write?
Interesting project to share?
Helpful tips and ideas for other hams?

Submit an article and we will review it for publication on AmateurRadio.com!

Have a ham radio product or service?
Consider advertising on our site.

Are you a reporter covering ham radio?
Find ham radio experts for your story.

How to Set Up a Ham Radio Blog
Get started in less than 15 minutes!


  • Matt W1MST, Managing Editor