Digital Mobile Radio references

After a productive club meeting on Saturday, we learned a lot from Andrew Byorth, KG5JDJ, about digital radio “hot spots.”  These small Linux computers (Raspberry Pi) and their radio HATs can act as your gateway to Internet-routed amateur radio such as Digital Mobile Radio (DMR or MotoTrbo), Yaesu Fusion, D-Star and NXDN.  For more information about DMR and amateur radio hot spots, here are a few Web links for you.

Amateur Radio Guide to Digital Mobile Radio (DMR) by John S. Burningham, W2XAB is a nice pamphlet that explains some of the concepts of DMR. 

In addition to your FCC license, you will need a DMR-Marc ID number, which you can get by registering on the radioid.net page.

Rob Robinette has a great web page about amateur radio digital modes and hot spots

Digital Hotspots for Amateur Radio is a presentation from the Richardson Amateur Radio Club and has a lot of information including quite a few more Web links regarding this topic.

Some notes from Andrew:

For those that might be interested in a plug and play hotspot please contact K4WZV. His email is good on QRZ.com. He has a couple different hot spots that he will set up with the customers configuration so when it arrives they are ready to go. The prices vary from around $110 to $189.

The raspberry pi’s can be sourced on amazon, ebay, etc. I always look for the best price. As for the MMDVM boards, you can search for mmdvm hs_hat or zumspot and find sources. I have bought a few on ebay with good luck. The ZUMspot is a little higher end and will cost more, the Chinese copies can be purchased for around 20 dollars. I have had good results with both. Nextion screens can found found easily on ebay. Make sure that the model number starts with a NX#. If is starts with a TJC avoid it.

  • Needed for full build:
  • RPI of your choice, pi-zero, pi 3 B or B+
  • MMDVM, zumspot, mmdvm hs_hat aka.
  • power supply, recommend 2.5 amp
  • OLED screen or Nextion screen if desired.

Permanent link to this article: https://www.bryanarc.org/digital-mobile-radio-references/

Reminder of meeting/test session location change for this Sat

This Saturday’s monthly meeting and test session will be at the CS Fire Station 6. This is the one located at 610 University Dr East at Tarrow St, next to Golden Corral. Test session starts at 8am and meeting at 9:30.  We will also have a presentation on dmr/dv hotspots by Andrew KG5JDJ. Club fees are also due. If you have not renewed please stop by and pay them. If you can’t attend print the form off of the website and mail in. We are also planning at being able for you to join/renew your ARRL membership through the club. By doing so the club gets a kickback. So it is encouraged to go thru us, it is appreciated. Forms for this will be avail at the meetings.
See you there.

Permanent link to this article: https://www.bryanarc.org/reminder-of-meeting-test-session-location-change-for-this-sat/

Annual BBQ Lunch & Membership Renewals Due

We are having our annual BBQ club meeting at C&J BBQ in Bryan on Saturday January 19th 2019 beginning at 11am. Lunch begins at 11 and meeting to follow about 11:45-12  See “next meeting” info to right for location.  We will be meeting the large party room and  will be welcoming the new officers and cover past year’s events as well as this year’s events & plans.  All is welcome to attend.

Also 2019 membership fees are due now. Please renew or join at this time. Please attend the bbq meeting and pay your dues then. If you cannot attend then please mail in your form with appropriate fee. You can find the membership form under the “About Us” tab above and then click on “Join Barc” and then “Club Application” for the pdf form. You can also pay at any of the monthly club meetings. Membership fee is due by March 1st.

Permanent link to this article: https://www.bryanarc.org/annual-bbq-lunch-membership-renewals-due/

Electronic parts sources

During our most recent meeting, a question arose:  where can I buy the resistors and capacitors that I need for what I am building?  Well, with no local electronics stores anymore, that’s a challenge.  Here are a number of options you might consider:

Online/telephone/mail order:

  • Digikey  Huge selection, reliable, long business history.
  • Radio Shack  They seem to still be doing business online and, some HobbyTown stores (like the one in Waco) sell a limited selection of Radio Shack merchandise.
  • Mouser Electronics  Huge selection, reliable, long business history.
  • Altex Computers and Electronics  Mainly cabling and IT products, some audio, some electronics.  They have a store in Austin.
  • Electronic Goldmine  Interesting items, surplus, odds and ends.
  • MPJA Marlin P. Jones.  Lots of inexpensive items including microncontrollers, power supplies, components and kits.
  • Parts Express  Lots of audio components, tools, speakers, vacuum tubes, etc.
  • Newwark/Element 14  Huge selection, long business history.
  • Antique Electronic Supply Lots of tube electronics parts, musical instrument tools, speakers, etc.
  • Sparkfun  Large selection of microcontroller/microprocessor project parts.
  • Adafruit  Large selection of microcontroller/microprocessor/electronic project parts.
  • Seeed Studio  Large selection of microcontroller/microprocessor project parts.

 

Brick and mortar stores:

 

Permanent link to this article: https://www.bryanarc.org/electronic-parts-sources/

New DMR information

Note the following, for your DMR codeplugs and hotspots:

N1WP repeater talk groups

Talk Group Name cbridge Link IC Time Slot Talk Group #
BM-TX_3-1 3 1 9000
Bridge-3-1 3 1 3100
Comm1-3-1 3 1 3777215
DMR-NA-3-1 3 1 3
DMR-WW-3-1 3 1 1
TAC310-3-1 3 1 310
TAC312-3-1 3 1 312
BM-TX_Nex_4-2 4 2 31488
CACTUS 4 2 3185
DILLO-4-2 (private) 4 2 8484
Inland 4 2 465263
Local-4-2 4 2 2
SETECG-4-2 4 2 8686
TX Statewide-4-2 4 2 3148
Texas-OK-4-2 4 2 3175

A new DMR network is available and growing.  This is in addition to DMARC and BrandMeister.  The TGIF Network.  See more here:  http://tgif.network/talkgroups.php

Permanent link to this article: https://www.bryanarc.org/new-dmr-information/

Breakfast Social Gathering – IHOP Bryan

W5BCS will be having a breakfast social gathering at the Bryan IHOP on Saturday November 10th. Show-up time is 7:30am-8:00am. All is invited to come. So stop on by and say hi and socialize while dining on some pancakes and such. See calendar to right and click on the Nov 10 for map location.

Permanent link to this article: https://www.bryanarc.org/breakfast-social-gathering-ihop-bryan-2/

September Meeting

We had a great turnout for our meeting on Saturday.  It was another opportunity to consult on technical problems, talk about your hobby and take a look at some show-and-tell items that folks brought in.  After our business meeting, Kerry Miller, AD5ABC, provided our presentation.  Kerry has quite a bit of experience with software defined radios and uses them regularly both at home, and in the field.  Kerry gave us an introduction and a helpful demonstration.  Our Volunteer Examiners were on-site and prepared to administer tests.  None were given but, we are grateful for the great work our VEs do.

 

Permanent link to this article: https://www.bryanarc.org/september-meeting/

Radio In The Park – Tanglewood Park

The club will be having its Fall time Radio In The Park event Oct the 13th (Sat). Start time is at approx 10:00am and event runs until approx 2pm or when everyone is ready to pack it in. Bring your portable radio gear & antennas and come out and operate and have some fun doing so. Power (120v ac) will be made available. Bring your own food & drink if desired. You may wish to bring a chair. Everyone is are invited to come out, members, non members, guests, families and those just curious about amateur radio and want to learn more or see communications in action and/or portable radio setups.

We tend to setup on the south east end of park closest to East 29th but table availability may vary.

See map in event calendar section on right side of webpage for location of park.

If weather is not favorable for this outdoor event then the next Sat the 20st after the club meeting is the make up day.

Permanent link to this article: https://www.bryanarc.org/radio-in-the-park-tanglewood-park-4/

RFI from LED lighting.

I certainly like the many options we have with LED lighting and the energy savings and long life are hard to beat!  I really don’t like the RFI that radiates from some of these lighting products, though.  Some screw-in bulbs that I have purchased from big box home improvement stores, I have simply returned when they caused my VHF radios to un-squelch with raucous static.  I have read other accounts of LED lighting interference with other services such as wireless networking and GPS.  The Coast Guard even issued a bulletin about LED lighting interference.

If you think you are noticing more noise on your amateur radios bands, it’s likely not your imagination!

Permanent link to this article: https://www.bryanarc.org/rfi-from-led-lighting/

RSVP for BARC events

Let us know if you can make one or both of these upcoming events by answering a few questions here:

Build a dual-band portable antenna:
https://www.surveymonkey.com/r/8Z3ZL7Y

Texas QSO Party:
https://www.surveymonkey.com/r/855V9KC

Don’t be left out!

Permanent link to this article: https://www.bryanarc.org/rsvp-for-barc-events/