Log Periodic Antennas – Podcast

“Log Periodic Antennas” is the topic of the current (January 3) episode of the “ARRL The Doctor is In” podcast. Listen…and learn!

A log-periodic antenna , also known as a log-periodic array or log-periodic aerial, isa multi-element, directional antenna designed to operate over a wide band of frequencies. It was invented by Dwight Isbell and Raymond DuHamel at the University of Illinois in 1958.

The most common form of log-periodic antenna is the log-periodic dipole array or LPDA, The LPDA consists of a number of half-wave dipole driven elements of gradually increasing length, each consisting of a pair of metal rods. The dipoles are mounted close together in a line, connected in parallel to the feedline with alternating phase. Electrically, it simulates a series of two or three-element Yagi antennas connected together, each set tuned to a different frequency.

Major Changes to ARES

Major Changes to ARES and OO Programs

The ARRL Public Service Enhancement Working Group has completed its two-year project to re-tool the Amateur Radio Emergency Service (ARES) to meet the requirements of partner agencies, nationwide. The new program will consist of ARES Members who are “organized, trained, qualified and credentialed” to better serve our partner agencies.

The new program features three levels of ARES membership, which are matched by three levels of required training and certification. The training requirements will be met by members completing free, online courses including NIMS IS-100, IS-200, IS-700 and IS-800 and the newly revised ARRL EC-001, which will be provided free of charge to ARES members. Additional training is required for all ARES leadership appointees (“*ECs”).

The ARRL Board has opened a public comment period which runs until October 31. ARRL requests your comments to be sent through your Section Emergency Coordinator <sec@wpa-arrl.org> and Section Manager <sm@wpa-arrl.org> only. The Board will review all comments and vote on the final program at the January 2019 ARRL Board Meeting.

The current OO program will end, and be replaced by a new Volunteer Monitoring program, administered by ARRL HQ, working closely with FCC. All current OOs will be invited to apply for the new program, which will concentrate on major enforcement issues the FCC requests. The goal is to provide more rapid enforcement response to significant, developing on-the-air violations rather than more minor operating and technical issues.

Much more information about these developments is available online at  www.arrl.org and in upcoming issues of QST.

Hamshack Hotline – Now on Line

Steel City ARC  is now online with Hamshack Hotline
Feel Free to give the club a call:

Call 4547 for the Club House
Call 4591 for the Repeater Hut

Join Us On the Conference Bridge:

Western PA Area conference bridge at 337 with no pin needed
Steel City Private Bridge: 339 See membership page for pins


Check out the WESTERN PA Conference Bridge on
Tuesday Nights around 7:30 PM


Karl and myself have each purchase an Cisco Voice Over IP phone from Ebay/Amazon.  We then got them sign up for telephone numbers from the Hamshack Hotline group.  Hamshack Hotline {“HH”} is a private telephone network for Hams by Ham Radio Operators.  You must be an ham radio operator to get assign for an HH telephone number.  There is a strictly non-commercial use clause in the operating rules, so you will never get any telemarketers or political call on this phone service.  The best part of all this is that it is total free.  Yes, you have to buy an telephone but there no monthly cost involved in this phone service.  You can call another ham directly leave a voicemail or even join a conference call with others hams.   HH was created with the thinking of ECOMM use.  It make a great back up device for emergency communications.  It works where ever you have Internet all you need is a cable, fiber, or even over an Internet mesh network.  People that have gotten and Cisco wifi adapters for the phone and have them work over their car Internet hot spots. Other people have been hooking up their repeaters to HH to let them talk on the air.

If you are interested in the Hamshack Hotline reach out to Karl, WA3VXJ or Christine, N3LRG to find where to purchase the refurbished Cisco IP Phone.   We have purchase them from Amazon and Ebay and both have worked and they have cost from $20 to $30. Please make sure you reach out to the sellers to make sure the phones are unlocked.   Since most home internet routers are not “Power over Ethernet” you will need to pick up an AC adapter or an “Power over Ethernet” injector.  The current acceptable phone models are Cisco SPA-303, SPA-504, SPA-525.  You can also get the Cisco IP Adapter SPA-112 which is an adapter that lets you use any current touch tone phone on the HH network.

Give us a call at the Steel City club house on the Hamshack Hotline phone number # 4547

For more information:

Ham Shack Hotline Homepage:
https://hamshackhotline.com/

Here is an video where they are talking about the Hamshack Hotline.

Spaceflight’s SSO-A…An Amateur Radio Satellite Bonanza

SpaceX Falcon 9 from Vandenberg Air Force Base has no fewer than seventeen Amateur Radio satellite payloads.  A list of the known Amateur Radio missions, websites and their downlink frequencies is as  follows. Which is currently scheduled for Dec 2, 2018.


From the SSO-A Website

We’re launching our first fully dedicated rideshare mission, dubbed SSO-A SmallSat Express, later this year aboard a SpaceX Falcon 9 out of Vandenberg Air Force Base in California.

Not only does it represent the company’s first purchase of an entire Falcon 9 to accommodate the growing number of customers seeking affordable rideshare options to launch their spacecraft into orbit, it’s also an historic launch:

It’s the largest single rideshare mission from a US-based launch vehicle to date.

Spaceflight has contracted with 64 spacecraft from 34 different organizations for the mission to a Sun-Synchronous Low Earth Orbit. It includes 15 microsats and 49 cubesats from both commercial and government entities, of which more than 25 are from international organizations from 17 countries, including United States, Australia, Italy, Netherlands, Finland, South Korea, Spain, Switzerland, UK, Germany, Jordan, Kazakhstan, Thailand, Poland, Canada, Brazil, and India.


CSIM
http://www.amsatuk.me.uk/iaru/finished_detail.php?serialnum=585A
Downlink 437.250 MHz

ESEO
http://www.amsatuk.me.uk/iaru/finished_detail.php?serialnum=82

Downlink on 437.00MHz and a transponder Uplink on 1263.500MHz
have been coordinated. A revised downlink frequency of 145.895 MHz has been coordinated for FM voice and 1k2/4k8 BPSK telemetry. The ESA has released a video of the satellite’s development:
https://tinyurl.com/ESA-Student-Orbiter

Exseed
http://www.amsatuk.me.uk/iaru/finished_detail.php?serialnum=636

Downlink 145.900 MHz for FM repeater 67 Hz and digipeater downlink and for telemetry and 435.340 MHz for repeater and digipeater uplink

Fox 1C (Fox 1Cliff)
http://www.amsatuk.me.uk/iaru/finished_detail.php?serialnum=455

Downlink 145.920 MHz for FM voice and  DUV data and Uplinks on 435.300 and 1267.300 MHz

JY1-Sat
http://www.amsatuk.me.uk/iaru/finished_detail.php?serialnum=554

Downlink 145.840 MHz and transponder downlink passband on 145.855-145.875 MHz with an inverting uplink on 435.100 – 435.120 MHz

K2SAT
http://www.amsatuk.me.uk/iaru/admin/update.php?serial=552

Downlink TLM beacon 435.835 MHz, FM Repeater 436.225 MHz Data 2404.000 MHz. FM Repeater Uplink 145.980 MHz

KNACKSAT
http://www.amsatuk.me.uk/iaru/finished_detail.php?serialnum=520

Downlink 435.635 MHz

IRVINE02
http://www.amsatuk.me.uk/iaru/finished_detail.php?serialnum=557

Downlink 437.450 MHz

ITASAT
http://www.amsatuk.me.uk/iaru/finished_detail.php?serialnum=435

Downlink 145.860 MHz and 2400.150 MHz

MinXSS-2
http://www.amsatuk.me.uk/iaru/finished_detail.php?serialnum=477

Downlink 437.250 MHz

MOVE-2
http://www.amsatuk.me.uk/iaru/finished_detail.php?serialnum=487

To avoid a frequency clash with another mission, a revised downlink
frequency of 145.950 MHz has been coordinated for 9k6 BPSK

PW-Sat-2
http://www.amsatuk.me.uk/iaru/finished_detail.php?serialnum=545

Downlink 435.275 MHz

RANGE A & B
http://www.amsatuk.me.uk/iaru/admin/update.php?serial=497

Downlink 437.150 MHz (A) and 437.475 MHz (B)

SNUGLITE
http://www.amsatuk.me.uk/iaru/admin/update.php?serial=529

Downlink 437.275 MHz has been coordinated

SNUSAT-2
http://www.amsatuk.me.uk/iaru/admin/update.php?serial=509

Downlink 437.625 MHz and 2402 MHz

SUOMI-100
http://www.amsatuk.me.uk/iaru/admin/update.php?serial=507

Downlink 437.775 MHz and 2410 MHz

Visioncube
http://www.amsatuk.me.uk/iaru/finished_detail.php?serialnum=607

Downlink 437.425 MHz

[ANS thanks AMSAT-UK for the above information.]

ATV – Fast-Scan Amateur Television

ATV base station block diagram

From the ARRL website….

Introduction

Amateur Television is a great way to combine ham radio with other hobbies, such as RC model airplanes and model rocketry.  Amateur Radio can be used to send video from a remote camera back to the operator over long distances, provided the path is line of sight. For information on other ways to work with images over radio, check the Image Modes page.

Articles

 Amateur Television from Model Planes and Rockets 
Joe Bottiglieri, AA1GW, QST Sept. 2000, pp. 41-44

 An Introduction to Amateur Television – Part 1
QST April 1993, pp. 19-23

 An Introduction to Amateur Television – Part 2 
QST May 1993, pp. 43-47
The basic ATV Station

An Introduction to Amateur Television – Part 3
QST June 1993, pp. 35-41

DVB-T A Solution for ARES Television Operations
QST June 2015 pp. 42-44

Hamshack Hotline

HAMSHACK HOTLINE       https://hamshackhotline.com                                                   This would be a nice addition to our E-Comm station and get other clubs in the area to get involved to have a back up system if the radio system is busy. Faxing and video can be used over the IP phone also.
Karl, WA3VXJ

About Hamshack Hotline

Hamshack Hotline (HH) is a FREE dedicated voip telecom service for the Ham R to radio community. Typically, phones are established in hamshacks, EOCs, Clubs & club members, ARES, and other Ham related areas and functions. It is not the intention of HH to replace traffic carried over radio in an emergency or other tactical operation, but rather to augment it, by offloading managerial tactical operations and providing a full duplex path for such communications when spectrum is occupied, conditions diminished, or otherwise unavailable. HH also supports FAXing of information (with appropriate equipment) which allows tactical offices to share documents & data between tactical locations. In a non-tactical use, HH is an effective resource for off-air troubleshooting when you need to coordinate a troubleshoot of a radio circuit off-air and between multiple SMEs. In addition to all this, conference bridges on the HH network allow large groups of Hams to coordinate & meet in real time anywhere in the world.
Getting on board HH is easy! Just acquire a supported SIP capable phone (our network prefers to register hardware phones first), and open a ticket once you have your phone. If you have one of the phones on our supported hardware list, then also include a picture of the Phone’s MAC address for super easy provisioning.


Steel City Involvement:

Beside members getting a handset Steel City could purchase extra handset for the Allegheny EOC, Salvation Army, American Red Cross, the National Weather Service and we can make them available to local clubs also.   If you look at the map below you can see the country is pretty well covered already except for the Western PA area.   Steel City can lead the way with this build out.  For example last SETI drill Skyview 5 Mhz set up failed and Steel City had to take over net control.  With Hamshack Hotline we could continue having a speakerphone connection with Skyviewv clubhouse  and the person in charge of the drill.  This system would work over an digital mesh network that has been brought up several times. There even examples of being able to tie the phone connection to a club repeater network.
Christine, N3LRG

For more information: https://hamshackhotline.com/


Flex Radio Demo

There will be a Flex Radio demo this Wednesday night Oct 24th at the Steel City club house at 7:00 PM promptly. Bob Green, N3RDG will be bringing up his Flex Radio Maestro unit to the club which will be hooked up at his Flex 6400 radio back at his house. The radio which will be live on the air and after the demo members will get a chance to operate it.   Bob will be showing us how it is used and all the unique features of of an SDR radio.  Bob will not only show us the Maestro interface but also the interface that can be brought up on the Laptop or Computer screen.

VE Testing Session – Oct 6th 3PM

Saturday, October 6, 2018 @ 3:00 PM
Dead line for preregistration will be:
Sept 24, 2018

*Please note the ARRL website is wrong The testing session is at 3 PM

 

PREREGISTRATION REQUIRED – NO WALK IN’s ALLOWED
To make sure we have enough testing materials on hand, and that you don’t have to wait for us to get ready we are requiring that people interested taking the exam preregister. If you have any question about the testing or to preregister please call Art at the phone number below.

Art Mueller  – WA3BKD
Phone: 724-356-7381 

Check out our VE Testing webpage for more information… 

 

Jamboree-on-the-Air

Oct 19-21, 2018
Jamboree-on-the-Air, or JOTA, is the largest Scouting event in the world. It is held annually the third full weekend in October. JOTA uses amateur radio to link Scouts and hams around the world, around the nation, and in your own community. This jamboree requires no travel, other than to a nearby amateur radio operator’s ham shack. Many times you can find the hams will come to you by setting up a station at your Scout camporee, at the park down the block, or perhaps at a ham shack already set up at your council’s camp.

When Is It?
Jamboree-on-the-Air is held the third weekend in October. There are no official hours, so you have the whole weekend to make JOTA contacts. The event officially starts Friday evening during the JOTA Jump Start and runs through Sunday evening.

For more information: https://www.scouting.org/jota/
Question for the club… Do we want to participate?