Feb 2018 Newsletter


SFTARC Newsletter

This Months News

Presidents Corner - February 2018

G Wolfe - KI0KK

Greg KI0KK

SFTARC participated again this year in the KS Day operating event to celebrate Kansas becoming a state. The club made 207 contacts on 5 bands using Phone (163) and Digital FT8 (44) modes.. The contacts were with 7 countries and 28 states.

The Mo-Kan Regional Council of Amateur Radio Organizations met on January 27 to discuss plans to sponsor the 2020 ARRL Midwest Division Convention in the Kansas City area. SFTARC is participating in the planning. Several sites are under consideration, any site suggestions would be welcome.Additional information may be found on the MO-Kan Council of Amateur Radio Organizations web site.

Tech night in January was a Skype presentation by Tim Duffy - DX Engineering. Tim presented information on products he sells and manfactures. 

The CW and Technician classes are going well with limited drop outs. In addition to the test session at the end of the class we plan to present a Ham 101 class in April to help new operators to get on the air.

The May 12 - 13 WW1USA event will be sponsored by SFTARC. Watch for announcements of details and for sign up information later in 2018. We will be using the club trailer for this outdoor event.

If you have a topic you wish to write about or find an interesting topic please publish it either in the newsletter area or the Tech Blog on the web site. We can also list web links on the website if you find ones that are of general interest. If you have club news, event pictures or ham related comments the club also has a Facebook page, "Sftarc Olathe".

Read the Meeting Notes in this newsletter for more details on these and other subjects.

Check out the sftarc.org web site club calendar for upcoming events.

See you at our March 3rd meeting at Perkins in Olathe.

Feb 2018 Meeting Notes

Mike Costello - KB0ISQ



The President, Greg Wolfe KI0KK, called the meeting to order.
Introductions of attendees were made by name and call-sign.


Secretary/Treasurer Mike Costello KBØISQ reported the bank balance and what income & expenditures for January were. Dues are payable now thru the end of February, PLEASE get them in AS SOON AS POSSIBLE!


Web Site

Migration to the new web site, sftarc.org, is complete. Please review your information on the online roster and notify KI0KK of any corrections. Anyone with a web site user ID/password can edit their own roster information on line.  If you do not have a user ID/password you can request one by sending an email to This email address is being protected from spambots. You need JavaScript enabled to view it..

Tech Night

Tech night will be held quarterly, starting in April, 2018. The planned topic is a Ham 101 Class for our new operators from the classes. The tenative date is Saturday April 14 at the Salvation Army in Olathe. We will annonunce final details once they are known.

CW & Technician Classes

CW and Technician classes are well underway with good attendance. Class presentations are being posted on the club web site.

Kansas Day

On January 27th, from 10 am to 3 pm at the shack of Del (KØDDS) our annual on the air commeration of Kansas becoming a state occured. Multiple operators and loggers had an enjoyable afternoon, A summary of the contacts from the log is provided in seperate newsletter article.


WW1USA for 2018.

May 11 and 12, 2018 has been secured for SFTARC sponsorship. A Coordinator for the club is needed to work with the WW1 museum personnel, PLEASE let Greg, KI0KK know if you are willing to handle the coordination as soon as possible. The plan is to use our trailer and a tent to make the event happen outdoors.

Field Day

Jim Andera and Larry Hall will be the 2018 Field Day coordinators. Prior to the WW1USA  event we will need to make sure we have complete any antenna repairs for both the WW1USA and Field Day events.

Tall Grass Prairie

Jim, K0NK, is going to contact the ranger at Tall Grass Prairie to see what date would be available.

Johnson County Radio Amateur Club Presentation by K0NK

Jim Andera, K0NK, will be making a presentation to JCRAC on batteries at their February 23 meeting.


A motion was made and seconded to adjourn the meeting. Meeting was adjourned..

Kansas Day 2018 Summary

G Wolfe - KI0KK

On January 27, 2018 The Santa Fe Trail Amatuer Radio Club (SFTARC) participated in an on the air event commerating the entry of Kansas as State. The following is a summary of the log entires for the event. Log entries have been submitted by Mike Costello, KB0ISQ, to Log Book of The World (LOTW) and eQSL.

KS0KS's Contest Summary Report for N3FJP's Amateur Contact Log

 Created by N3FJP's Amateur Contact Log

Operating Period: 2018/01/27 16:07 - 2018/01/27 20:57


Total Contacts by Band and Mode:


Band CW Phone Digital  Total  %
40 0 3 1 4 2
30 0 0 10 10 5
20 0 160 12 172 83
17 0 0 20 20 10
15 0 0 1 1 0
 Total 0 163 44 207 100


Total Contacts by Country:


Country Total %
USA 190 92
Canada 7 3
Puerto Rico 3 1
Alaska 2 1
Australia 1 0
Cuba 1 0
Falkland Is 1 0
Hawaii 1 0
Total = 8    


Microcontroller Trends


An abundance of choice

The number of different microcontrollers on offer just keeps on growing. Nearly every single week a new product appears on the market. Choosing the right microcontroller for a particular design is becoming increasingly more difficult. Reason enough to appraise the latest developments. The microcontroller market is mostly dominated by a few ‘heavyweights’ such as Microchip, Atmel and, to a lesser extend, Philips.

In addition, there are many smaller manufacturers who make very interesting developments in this area. There are also a number of manufacturers who are not at all that well known for their microcontroller products, and are often forgotten as a consequence. Names that come to mind are Toshiba with its TMP86xxx-family, and Zilog, the inventor of the famous Z80, who now offers the Z8 Encore! and eZ80 families. Also don’t forget Dallas Semiconductor with its DS89C420, Cypress with its PsoC (Programmable System-on-Chip) such as the CY8C27x, or the, until recently, completely unknown company Cygnal with its C8051xxx.

Best Robot and Drone CES 2017

By: Steve Crowe

Robots of all shapes and sizes dominated CES 2017. Robots, drones, self-driving cars and robotic assistants took over Vegas to kickoff the new year, and we were there to take it all in.

We’ve compiled our list of best robots and drones, but we also want to hear from you. What was your favorite robot from CES 2017? Share your thoughts in the comments.

Click here for the 10 Best Robots & Drones of CES 2017.

How did the robots at CES 2017 compare to prior shows? Check out our 2016, 2015 and 2014 recaps.

Also don’t miss our roundup of the Top 10 Robotics Startups at CES 2017.

Click here to view the original article at Robotic Business Review.

GoPro Quits Business

By: www.roboticsbusinessreview.com

GoPro has announced the end of their drone program, only two years after they released their first drone to the public. The GoPro Karma drone, which generated mixed reviews and even suffered a complete recall, will be the last model drone produced by the company.

GoPro stated in its quarterly earnings report that it will officially exit the drone market “after selling its remaining Karma inventory.” As a result of this move, the company will be laying off over 200 employees as it looks to scale back its product offerings to its core items.

GoPro’s aerial struggle

The Karma drone launched back in 2015, a time when most consumer drones including were designed to work with a GoPro camera. Since then, however, drones are increasingly housing their own cameras, with popular models from DJI even boasting 4K resolution on their native cameras.

Is this shift in cameras to blame for the end of GoPro’s drone program? It’s possible, although the consumer drone market is heavily saturated with other offerings, and GoPro may simply have entered the game too late, without a strong enough offering to make a real splash in the market.

The company also blamed tightening regulations in both Europe and the United States as factors in the Karma drone not finding commercial success. Governments are still struggling over how to regulate both consumer and commercial drones, with the UN going so far to even propose a global drone registry last year.

Read more:

World Radio Day -- Feb. 13

By: Wikipedia

World Radio Day is an observance day held annually on 13 February. World Radio Day is about celebrating radio, why we love it and why we need it today more than ever. A day to remember the unique power of radio to touch lives and bring people together across every corner of the globe. It was proclaimed on 3 November 2011 by UNESCO's 36th General Conference after originally proposed by the Kingdom of Spain.

World Radio Day 2018

World Radio Day 2018 will be held on 13 February 2018 around the theme of "Radio and Sports". As we look forward to a year of momentous sporting events that have the ability to unite the hearts and minds of people everywhere. World Radio Day 2018 will celebrate the traditional sports that connect us to our cultural heritage, the grassroots sports that anchor us within our communities, and the inspiring stories that challenge gender stereotypes and provide positive role models for young people around the world. The theme for 2018 is all about the alliance of sport and radio as a force for civic participation and development as well as for celebrating humanity in its diversity. World Radio day 2018 will celebrate radio's critical function in shaping this alliance, by providing a platform for radio stations, and listeners alike, to construct their programs and conversations around Radio and Sports.

The sub-themes are:

• Radio and Sports build and unite communities
• Radio and Sports inspire participation and inclusion
• Radio fosters goodwill and inspires humanity
• How radio impacts on our lives

 Read more:


Antenna - Loop

By: Wikipedia

A loop antenna is a radio antenna consisting of a loop or coil of wire, tubing, or other electrical conductor usually fed by a balanced source or feeding a balanced load. Within this physical description there are two distinct antenna types.

The large self-resonant loop antenna has a circumference close to one wavelength of the operating frequency and so is resonant at that frequency. This category also includes smaller loops 5% to 30% of a wavelength in circumference, which use a capacitor to make them resonant. These antennas are used for both transmission and reception.

In contrast, small loop antennas less than 1% of a wavelength in size are very inefficient radiators, and so are only used for reception. An example is the ferrite (loopstick) antenna used in most AM broadcast radios. Loop antennas have a dipole radiation pattern; they are most sensitive to radio waves in two broad lobes in opposite directions, 180° apart. Due to this directional pattern they are used for radio direction finding (RDF), to locate the position of a transmitter.

Read more: en.wikipedia.org/wiki/Loop_antennahttps://en.wikipedia.org/wiki/Loop_antenna

Antenna - Coax-Dipole

Jim Cessna - AC0KN

In Ham Nation episode 266, Bob talks about building a coaxial dipole. He says it is broad-banded and does not need a tuner. The picture shows how it is constructed.

Note the center wire is not cut. The shield is cut and feed with another coax. There is a whole lot more information on building the coax dipole in the 266 episode including the end components, so view the episode before building this dipole.

View Ham Nation episode 266


Club Contact Information

Direct articles and comments to Newsletter Editor Jeff Darby at:
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Contact information is on our web site:
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Calendar of Events

Calendar of event is on our web site:
(view it on-line)



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