DMR Radios

KL7JFT

OK what is DMR Radio.

Digital mobile radio (DMR) is a limited open digital mobile radio standard defined in the European Telecommunications Standards Institute (ETSI) Standard TS 102 361 parts 1–4[1] and used in commercial products around the world. DMR, along with P25 phase II and NXDN are the main competitor technologies in achieving 6.25 kHz equivalent bandwidth using the proprietary AMBE+2 vocoder. DMR and P25 II both use two-slot TDMA in a 12.5 kHz channel, while NXDN uses discrete 6.25 kHz channels using frequency division and TETRA uses a four-slot TDMA in a 25 kHz channel.

DMR was designed with three tiers. DMR tiers I and II (conventional) were first published in 2005, and DMR III (Trunked version) was published in 2012, with manufacturers producing products within a few years of each publication.

The primary goal of the standard is to specify a digital system with low complexity, low cost and interoperability across brands, so radio communications purchasers are not locked into a proprietary solution. In practice, given the current limited scope of the DMR standard, many vendors have introduced proprietary features that make their product offerings non-interoperable with other brands.

The ham versions of the Anytone, TYT,Retevis, BTECH, Ailunce, Yaesu and Alinco and a few other brands are Tier I and II.  And both Analog and Digital. The ALMR radios that the state is using and some municipalities are Tier III.

Some of the radio are Type 90 approved and work for ham also.  Prices vary 100-300 dollars.  There are some mobile version out there as well that go for 300-600 dollars.

My brand is the Anytone from Bridgecom.  This training and support they provide is top notch and no question goes unanswered.  They have several videos out on U-Tube and they have training courses at Bridgecom to take you thru the radios, programing and use.

Building your first code plug is a little daunting but their videos and support sites get you thru it, plus you can get with a buddy and share.

We currently have 4 Repeaters operational in Alaska, South Anchorage, Homer, Fairbanks and Wasilla. We organize or various groups of contacts into groups called Talkgroups and have one for Alaska, but there are several that include the lower 48 and the world.

These radios can be used on RF or thru internet/WiFi and cell phone hotspot connections.  We are experimenting in the Valley using them simplex and repeater coverage areas to see how they compare to standard Analog simplex and repeaters.

This is just the beginning.  Folks who are interested and/or are working this mode, lets put out heads together and see if we can getting going.

Don/KL7JFT

ICS COURSES

KL7JFT

We have mentioned the basics requirements at our meetings and news letters for folks interested in Emergency Communications.

It was brought to my attention that it makes sense to complete them in the following order, not numerical order…..

“The recommendation is that folks begin with ISC 700 then 800 then 100 then 200 and finally 144.”

700 https://training.fema.gov/is/courseoverview.aspx?code=IS-700.b

800 https://training.fema.gov/is/courseoverview.aspx?code=IS-800.c

100 https://training.fema.gov/is/courseoverview.aspx?code=IS-100.c

200 https://training.fema.gov/is/courseoverview.aspx?code=IS-200.b

144 https://training.fema.gov/is/courseoverview.aspx?code=IS-144

Please let me know if any of you want a classroom setting so I can schedule that with our trainer

Please send a copy of our completion certificate to Don Bush/KL7JFT MATSU DEC, to put in your training file.

Pay your Membership Dues On Line

KL7JFT

If you haven't paid your 2020 membership dues, please get with John/KL1XM.  Our dues is one of our main incomes to maintain the club equipment and activities.  We are also a 501c3 non-profit club so it is all tax deductible. The web site has an application form for you to fill out under Forms and you can go to the Donate tab and pay by PayPal or Credit Card, if you like.  For any other club donations we will provide you a Tax Receipt.  Also with all the benefits available thru ARRL, you may be interested in joining it also.  You have the choice of 2 magazines now, one for new hams, with your ARRL membership, you also can get good equipment insurance, pod casts on various ham subjects, new equipment evaluations, construction projects, contest, and what ARRL is doing on our behalf with new legislation.

Another item of interest is that we are allowed to use our current meeting venue by donating to the food bank, non-perishable food or paper products.  This helps out our Food Bank for the community.   And thank you for your donation.

Portable Operations Work Shop (COMPLETED)

KL7JFT

This year we are resuming our in-person workshops with two PORTABLE OPERATING WORKSHOPS planned. The first will take place at 1000 on Saturday, May 1st at Finger Lake State Recreation Site in Wasilla.

This won’t be your grandpa’s dry ham radio lecture either. We will be getting hands-on under field conditions and setting up a variety of stations (including HF). This is fast-and-light field radio at its best, and will be held rain or shine. POC is Brandon/KL7BSC and the VHF UP GROUP

See just how portable a backpack HF station can be. Learn to set up a single-operator portable VHF contest station. Or if local parks are your thing you can see how a combined HF-VHF Parks on the Air activation works. Don’t miss out!

POTA, What is this?

KL7JFT
Well POTA is Parks On The Air.  Do you want have some fun, well this is it and it good practice for operating away from your home station. A lot of Alaskans like to get into the outdoors, fishing, hunting, hiking, ATVing, boating, or just plain camping.  Now it's possible you just want to get away from the hussle and bussle from the city and others for peace and quite.  But how would you like to help your state to improve getting folks interested to visit and help our small businesses.   Ham operators are always interested in talking up their station, home, and interest you have.  Well go to a park, any type and setup your portable station and call CQ CQ POTA, Denali National Park. This winter we held Winter Field Day at Finger Lake and had a blast.  Below is a link to a video that tells you all about it.  Enjoy.      POTA

SOTA-POTA Saturday (PENDING)

KL7JFT

Hello group,

Don't forget that this Saturday Alaska VHF+ is doing another Parks on the Air activation, and this time it will also be a Summits on the Air attempt at the same time.

Weather permitting, I will be hiking up a peak called The Hideout, just north of Skilak Lake. The plan is to be on the air for the 2 M SSB net at 0930 and make a few contacts there. I will have a good antenna but will be running QRP, so keep an ear out for a weak signal in the background.

If you can't hear me on VHF then keep an ear on 20 M FT8 around 1030. I'll be switching to that band and mode to make contacts outside of Alaska, but locals should be able to pick me up too.

For Summits on the Air this peak is "KLA/KM-456". It is within the Kenai National Wildlife Refuge, and counts as K-0149 for that program.

Brandon Clark, KL7BSC

https://brandonclarklabs.com/

Storm Damage Reporting

KL7JFT

The National Weather Service needs are help, whether you are a ham, weather spotter or an individual who seen storm situations and damage they may of caused.  The below link is the short report you can fill out and send to the weather station in your area, be it Anchorage or Fairbanks.

This is valuable information, especially if a dollar value can be added to the damage assessments (realistic not just inflated for effect).  There is a section in the storm report page just for high winds.

https://www.weather.gov/aprfc/submit?site=afc

 

Harry/AL6F

Alaska SKYWARN Manager

Ideas for General Meetings

KL7JFT

Chris/KL5BF, our VP is looking for ideas for programs at the meetings, so let her know what you would like to see or an idea we can put together.  May 29th will be our last regular meeting due to summer activities.  We take June and July off except for the MARA Annual Picnic will be in July.  We have the Motley Picnic coming up 27-28th June. Field Day is that same weekend.  Location has not been selected yet.  The Motley Picnic will be at Tolsona Campground near Glennallen again this year.

Chignik Bay & Sand Point Tuesday Night Earthquake (COMPLETED)

KL7JFT

Bushmaster Operations was activated last night, the 21st to support Earthquake and possible Tsunami on the Aleutian Chain to affect Homer and Cook Inlet area,  last night around 2300 by the SEOC.  KL7EOC/KL5T alerted us to the earthquake.  We establish nets on 3920, 147.30, 147.33, Winlink, 223.6 and DMR/AK TG3102.  KL7JFT started logging in contacts from Valdez, Homer, Anchor Point, Big Delta, & Kodiak.  We had supporting stations coming up on the VHF net.  KL4B verified that HF Winlink was available to KL7GRM and KL7EDK. KL4RCS maintain contact with Public TV and Radio to feed us information.  Kodiak/WL7R got us the coordinates of the earthquake and details.  It 7.8 ;75 miles SW of Chignik Bay, Secondary quake happen at Sand Point, 6.1.  The Tsunami was to hit between 2230 and 2320 in the Kodiak and Homer Area and possibly come up Cook inlet. KL2T reported the siren had went off on the Homer Spit and evacuations began.  WL7R reported the same in Kodiak.  KL7GRM Winlink was operational and he brought up the Eagle Packet Node for backup.  KL5T monitored the 147.30 net with KL4E's assistance out of Eagle River.  All stations maintained a good watch from their areas, propagation was excellent on 3920.  As conditions changed the NCs were kept in formed. at about 2330/0100 the outlying stations began to report the Tsunami warnings were being closed down.  KL7EOC/KL5T reported the SEOC closed down the nets and would work the support issues on the chain thru their channels.  The next morning reports were compiled and submitted.  At the request of AG6SV/Ken, the Saturn Comm Coordinator, reports were forward to him, which were further sent to FEMA, Salvation Army HQ and Washington D.C.  Operations secured at 0100 the 22nd.  All stations used excellent net procedures and discipline, A "Well Done" to everyone.  Thanks for the support.   Don/KL7JFT MATSU DEC