Fallbrook Amateur Radio Club Bulletin December 2020

No Regular December Meeting We Will Be Doing A Virtual Zoom Meeting.

Members To Get Email Invite
Visitors Will Need To Contact Webmaster.

[email protected]

The Fallbrook Amateur Radio Club normally meet at 3:00 PM on the first Saturday of the month.

Normal Meeting Location, The Scout Hut, 231 E. Hawthorne St. Map

THIS MONTHS MEETING AGENDA

  • No Regular December Meeting, Virtual Meeting By Zoom.
  • KJ6UMY’s Station Upgrade
  • Software Defined Radio Decoding

Fallbrook Amateur Radio Renewals

NameCallDate Expires
Dropped
Kadien, TomAF6UL8/31/2020
Cooley, JerryWX6AAA8/31/2020
Third Notice
Leonelli, PhilWF6L9/30/2020
Bart, JonK6QVA9/30/2020
Second Notice
Coxe, PaulaTBD10/31/2020
First Notice
Febraro, AlbertW6AAX11/30/2020
Ryan, JimKJ6IHX11/30/2020
Shoop, RickAG6KL11/30/2020


de W6VR

$200,000,000 Fine, Largest Fixed-Amount Ever Issued by FCC

This is one fine the FCC will collect because of the size of the company involved. Looks like T-Mobile/Sprint got a bit carried away with the Obamaphone giveaway.
docs.fcc.gov

Gone in 23 seconds: DC radio towers demolished, new homes coming | WTOP

Wtop.com

When X-Rays Were All the Rage, a Trip to the Shoe Store Was Dangerously Illuminating

spectrum.ieee.org

$10 Million Proposed Forfeiture

Another big fine that will never be collected. The opening remarks in this document are interesting to read nevertheless:
docs.fcc.gov

FCC Nixes Cellphone Use on Airborne Aircraft

New technology (pico cells) could have allowed smartphone use (at least for texting or Web browsing) on airborne aircraft, but the FCC has closed the door on that idea for the foreseeable future: docs.fcc.gov

“World’s Fastest Pitch” – Supersonic Baseball Cannon Video

Fascinating experiment:


de KJ6UMY

Mobile phones of the future, in the past

www.snotr.com
And the Brits lost the race…

Vintage Technology: 1957 Principles of the Transistor

3D Printed Fabric & Liquid Metal Circuit Boards

hackaday.com
hackaday.com
A couple of interesting technologies with unexplored applications.

How a Thanksgiving Day gag ruffled feathers in Mission Control

arstechnica.com

After Eight-Month Break, Deep Space Network Reconnects With Voyager 2

hackaday.com

The Battle For Arecibo Has Been Lost

hackaday.com

Gathering Eclipse Data Via Ham Radio

hackaday.com

Arecibo radio telescope’s massive instrument platform has collapsed

arstechnica.com


de KG6HSQ

Rocket Launch as Seen from the Space Station

Helitanker

From the Cockpit of a Firefighting Helicopter (Pilot POV)

Tracking and Chasing Weather Balloons with TTGO LoRa board and Raspberry Pi.

Fun and adventure


Meeting Minutes

Fallbrook Amateur Radio Club
Virtual Meeting, Fallbrook, California
November 7, 2020

Vice-President Ron Patten, KG6HSQ, called the Virtual meeting to order at 1503 hrs.

A pledge of allegiance was conducted by Ron.

Brent, KJ6UMY, gave the following financial report.

Checking Balance September 30, 2020 $7,617.70
Petty Cash Balance September 30, 2020 $58.81
Total
$7,676.51

OCTOBER INCOME
ARRL Dues $0.00
Membership Dues $40.00
Total
$40.00

OCTOBER EXPENSES
ARRL Renewal Fees $0.00
Total
$0.00

PETTY CASH
Petty Cash Balance September 30, 2020 $58.81
Expenses October 2020 $0.00
Cash Additions October 2020 $20.00
Total $78.81

Checking Balance October 31, 2020 $7,637.70
Petty Cash Balance September 30, 2020 $78.81
Total $7,716.51

Jon Bart, K6QVA, joined us from Tennessee. Jon reported that there is an active local VHF repeater in Crossville at 3600 ft. that provides good coverage. On this repeater, there is a Thursday net that includes a trivia section that may go on for 2 hours.

Ron, KG6HSQ, reported that there have been non-licensed operators on the Red Mountain repeater, a couple attempting to use it for general communication. They have been using some call signs that don’t come back to anything such as GMRS or any known license. After being discouraged by operators on the repeater they moved to the Red Mountain Echo Link repeater. Ron then turned that off to discourage them from using it. They returned briefly to the Red Mountain repeater, but were again discouraged by ham operators.

Stephen, KC6MIE, reported that Ken Dickenson, now living in Santa Maria, is still house hunting. There is not a lot on the market. He found one house today that looks promising. Houses in that market are selling above listed prices.

Jon, K6QVA, indicated that after leaves finish falling he will put up his end fed HF antenna. His real estate agent commented that 40% of his clients are transplants from California and New York.

Bob Gonsett, W6VR, commented that over the air television in Fallbrook is being interfered with by two frequencies in the 600 MHz band. Both are T-Mobile cell frequencies. These may overload front ends, cause intermodulation frequencies and result in bit error rates that shut down TV reception. The solution is a filter from Channel Master called a “LTE” filter. This 600 MHz low pass filter is best installed before the TV preamplifier. It can be ordered directly from the Channel Master website. https://www.channelmaster.com/TV_Antenna_LTE_Filter_p/cm-3201.htm

Ron, KG6HSQ, gave a DMR presentation as an overview of this mode. DMR comes from the commercial radio side, first developed by Motorola. Deviation is 2.5 KHz instead of 5KHz. It is similar to HDTV, but not as complex. DMR breaks the frequency in use into two time slots, allowing two simultaneous conversations on a frequency. FM uses tone, DMR uses 16 “color codes”, which aren’t colors. To operate DMR you register on a webite for a unique user ID. This registration puts you in a worldwide database. DMR repeater can have two concurrent talk groups, one static and one dynamic. The static is ever present a dynamic talk group can be setup and expires after 15 minutes (of non-use?). DMR allows local talk group access from anywhere in the world. Radio channels are programmed with the repeater frequency, color code and time slot, so programming can be a challenge. Repeaters can be connected over the internet. Each DMR radio has a database of all DMR registered hams. DMR IDs can be grouped into Zones on a radio to make navigating the huge database easier. The programming used to setup a new DMR radio is called a “code plug”, a term taken from when commercial radios which were programmed with a physical part containing the programming. This programming is uploaded to the radio via software. DMR allows cross connects to other radio systems. Another feature of DMR is a “hotspot”. This is a board that plugs into a Raspberry Pi to allow your radio to be internet connected. This is a good option if there are no DMR repeaters nearby. There are a great number of DMR talk groups, many organized regionally into ever larger regions. To check your transmission quality, there is a Parrot talk group that echos your transmission back to you. You can participate in DMR without a radio, using internet only, but you must buy a dongle containing the needed codec, which costs $150, basically making this a more expensive option. DMR seems to be the best ham digital choice so far.

Stephen, KC6MIE, recommended a “DMR For Beginners” youtube video. https://youtu.be/5FAFt1QCtC0

Ron, KG6HSQ, called for any additional topics or comments.

Bob, W6VR, commented that the DTV interface offers a signal strength screen and explained that this isn’t really signal strength, but the equivalent of an inverse bit error rate. Bob also offered that the two 600 MHz sites are located at the sports park with a 10 MHz bandwidth and at Dale Hoppe’s former ham site with a 14 MHz bandwidth.

Ron adjourned the meeting at 1558 hrs.

Brent Dussia, KJ6UMY
Interim Secretary/Treasurer
Fallbrook Amateur Radio Club