mattbk.com – Page 2 – Matt Burton-Kelly's home on the Web

East Grand Forks: Childcare in the News

Making childcare more available in East Grand Forks has popped up a few times recently. Not sure if this is part of a trend that will accomplish something in the long run, but nice to note.

Mayor Steve Gander proclaimed April 4 will be Childcare Provider Appreciation Day in East Grand Forks, allowing an opportunity to recognize childcare providers. “I urge all citizens to thank and encourage childcare providers for their important work,” Gander said.

Grand Forks Herald, 15 Mar 2022

According to the Exponent, there was an event at Valley Golf Course for the announced day.

And of course it must be something of a deal if the newspaper is writing editorials about it:

Our view: The child care crisis in the Dakotas and Minnesota is bad for business
To us, the growing trouble with child care is among the biggest contributors to the Great Resignation in the Dakotas and Minnesota. It’s why we hope state lawmakers, governors and decision-makers continue to seek landmark solutions.

Grand Forks Herald, 01 Jan 2022

Some info on how short we are (hopefully the growth from January to March does not continue):

“Child care.” East Grand Forks is about 100 child care “slots” short of where it should be, according to Gorte. The city is looking for ways to lure new daycares to town or help existing ones expand via the Rural Child Care Innovation Program, which is run by nonprofit First Children’s Finance and funded jointly by the Minnesota Department of Human Services and the Michigan Department of Education.

Grand Forks Herald, 31 Jan 2022

“People who are not participating in the labor force have to have access to childcare so they can participate in the labor force,” Kiddoo said.

Paul Gorte, economic development director in East Grand Forks, said the city needs to add more than 200 spots for pre-kindergarten children. Kiddoo said Thief River Falls, where Northland also has a campus, needs to add a similar number of spots.

Grand Forks Herald, 30 Mar 2022

On 14 Mar, the East Grand Forks school district sent out a survey (via ParentVUE) about childcare and notice of a town hall about it:

Good Afternoon, please use the link below to participate in a survey about the child care needs of East Grand Forks. Availability of high-quality childcare is cucial for East Grand Forks to grow and thrive. East Grand Forks needs approximately 200 childcare slots, especially infant and toddler care, to meet our current needs. Help guide our work on this improtant issue by completing a survey and attending a town hall meeeting on April 25th.

Parent Survey: https://www.surveymonkey.com/r/parentegf

Town Hall: https://eastgrandforkstownhall.eventbrite.com

Here’s the Town Hall info from the link:

You’re invited to take part in the discussion and solutions at the town hall!
About this event

Child care is an economic driver for rural communities across the United States but many communities are facing shortages of high quality child care. First Children’s Finance’s Rural Child Care Innovation Program is an innovative community engagement process designed to address the challenges of child care in rural America.

East Grand Forks has a shortage of approximately 210 full-time child care slots. A shortage of this magnitude has a dramatic impact on families and the local economy. To address this challenge, a core team from East Grand Forks has come together to lead the process of investigating why there is a shortage of care in the area. The Town Hall meeting is the opportunity to develop solutions to address this child care challenge for our community.

Child care needs to be accessible, of high quality, and profitable for the child care provider. As a community, we can work together to make this a reality.

**DINNER PROVIDED**

Hopefully we can see this community of about 8,000 people come together and get things figured out. I’m not directly involved in organizing any of this, but as a working parent who has had to look for quality childcare in the last several years, I appreciate all the efforts.

Alma Swansen

Looking for information on:

Alma [B? L?] Swansen (Swanson, Swansan, Svensen, Svenson, etc.)
Born about 1872 in Sweden
Immigrated to USA about 1888
Married John Bernard Johnson (1865-?)

Children:
Alma Elnora Johnson (1896 – 1914)
Huldah Christenia Johnson (1894 – 1988)
Anna M. Johnson (1892 – 1973)
Harry B. Johnson (1897 – 1969)
Carl R. Johnson (1899 – 1973)
Jennie Johnson (1901 – 1966)
Lilian Johnson (1905 – 1984)
Mabel Johnson (1907 – 1987)
Edna Johnson (1910 – 1977)

Information on Alma from Sweden would be very much appreciated!

Frost-Keysor Genealogy

I had to write this all out to email it to the keepers of the Genealogy of the Abial Frost Family website, so I might as well post it here in case someone finds it from another angle and has information.

I’m looking for a connection to the Frost family and hoping someone might be able to give me some guidance on my wife’s side of the family.

Looking over the newsletters and this site, I don’t think she is a descendant of Abial Frost, but there are references to the Hadley, NY area that I think are intriguing.

My wife is descended from an Elizabeth Frost, who married Clark Keysor Sr., father of Civil War Union Captain Clark Keysor of Mankato, MN. We don’t have direct familial knowledge of the line this far back, but Capt. Keysor’s early life is documented in both “Mankato: It’s First Fifty Years..” (1903) and “History of Blue Earth County…” (Hughes, 1901). I’ve copied some text below:

Captain Keysor was born in Luzerne, Warren county, New York, May 24, 1826, and was among the five children of Clark and Elizabeth (Frost) Keysor. The father followed the lumbering business until his death, which occurred in New York state in 1830. Survived by the widow, she eventually came to Mankato [MN] and died here in 1877 at an advanced age. Their son, Clark, Jr., received a common-school education in New York state and grew to manhood upon a farm, early gaining a thorough knowledge of agricultural pursuits. (Hughes, 1901)

KEYSOR, Capt. Clark–Born in Luzerne, Warren County, New York, May 24th, 1826, a son of Clark and Elizabeth (Frost) Keysor. His grandparents on his father’s side were natives of Germany, who landed in New York City about the end of the 18th century, were the grandmother died, leaving the Captain’s father an infant, who, being adopted by a family named Wells, was brought up in New York State, where he died in 1830. After his father’s death, Capt. Keysor made his home with his grandfather Frost, in the town of Hadley, New York, working on a farm and attending the country school until he was sixteen years of age. He then started out for himself, finding employment first in a saw mill at Luzerne, and the following winter in a lumber camp. (Mankato, 1903)

Elizabeth Frost Keysor did move to Mankato and died there. She may have remarried to a Noyes after Clark Sr’s death, but I am having a hard time finding documentation. There are two markers that bear her name in Glenwood Cemetery in Mankato.

Looking through the newsletters, I see mention of Uncle Elijah, who lived in Hadley around that time and had a daughter named Lizzie. This is noted in the Frost Genealogy (1912); Elijah is individual #8.

I’d appreciate any sources documenting the Frost-Keysor connection if there is one. Thanks for any ideas.

Matt

P.S. My wife’s tree is online, the direct link to Elizabeth Frost is here: https://mattbk.com/webtrees/index.php?route=%2Fwebtrees%2Ftree%2FFinstad%2Findividual%2FI782%2FElizabeth-Frost

Uploading big files to Castopod on YuNoHost

Find PHP version being used:

> matt@example:/etc/php$ tail ynh_app_version
> castopod:8.0

Update `memory_limit` in `sudo nano /etc/php/8.0/fpm/php.ini`

Restarted PHP 8 service, getting `504 Gateway Time-out nginx` now. Progress?

Then set `client_max_body_size` in here to 700 rather than 600:
`matt@example:/etc/nginx/conf.d/castopod.example.net.d$ sudo nano castopod.conf`

Then set `max_execution_time` to 90 at `sudo nano /etc/php/8.0/fpm/php.ini`

Restart nginx and PHP services (I used https://example.net/yunohost/admin/#/services).

APRS over LoRa, iGating and digipeating

I haven’t touched this in a while, but I may forget if I don’t keep working on it. An advantage of running APRS (on whatever protocol, even if on a license-free band) is the existing infrastructure (APRS-IS) and ability to use existing software for interface (e.g., APRSDroid). Additional advantages of using ESP32 devices are 1) low cost, 2) easy to get, and 3) no need for license, but you can’t use nearly as much power and still be legal.

Of course, there is still the caveat that LoRa itself is a proprietary protocol, so if you need everything to be open, you’ll have to look elsewhere. My interest is working networks. If you want encryption, Meshtastic might work for you.

Copying what I wrote at https://github.com/SQ9MDD/TTGO-T-Beam-LoRa-APRS/issues/29#issuecomment-926018368:

I can confirm that the https://github.com/lora-aprs/LoRa_APRS_iGate project can act as an iGate for a device running this code, if the baud rate is set at 300, not 1200. SQ9MDD’s code can both send and receive packets sent by the lora-aprs code, and vice versa.

This doesn’t solve the ticket, but does make it possible to deploy an iGate/digipeater if you are OK using different code for it. I’m pretty excited for that, at least.

Some notes I took while learning are below.
—–

SQ9MDD:

These codes mean:
– 300 baud: `Bw125Cr45Sf4096`
– bandwidth 125 kHz
– coding rate 4/5
– spreading factor 4096 chips/symbol (SF 12)
– 1200 baud: `Bw125Cr47Sf512`
– bandwidth 125 kHz
– coding rate 4/7
– spreading factor 512 chips/symbol (SF 9)

lora-aprs:
(values are default except for frequency, which I changed for my device)

Spreading factor is here given in different units? A number between 7 and 12.

2^{𝑆𝐹} 𝑐ℎ𝑖𝑝𝑠 =1 𝑠𝑦𝑚𝑏𝑜𝑙 (source).

So a spreading factor of 12 is 4096 chips/symbol and a spreading factor of 9 is 512 chips/symbol.

WSJT-X Setup on macOS

I may add to these notes, but a key one was to make sure to give WSJT-X access to the microphone, even when using a USB cable to control the rig. Thanks to K3DCW for the tip.

I presume that you have a checkmark in the box labeled “PortAudio” next to the USB Audio CODEC device selectors. If so, then the only other thing that I can think of is that you haven’t given macOS permission to access your “microphone.” Many of these programs see/treat that USB Audio CODEC as a microphone input and failing to give it access to your “microphone” will cause it to not hear a thing. Go to the Security & Privacy pane and make sure that Fldigi has access to the microphone.

I also have iShowU Audio Capture installed (for OBS screen recording), which I thought might have been the problem. Here are my current working audio settings (Audio Midi Setup).

The rest of the settings described here work out well for connecting the IC-7300 and my MacBook Pro.

To get the gain right in the software, I used the RF Gain knob on the IC-7300. ~~There is a way to adjust this in the settings but I can’t find it at the moment.~~ It’s the ACC/USB AF Output Level setting under MENU>SET>Connectors (make sure you scroll up and down the menu items as needed). All suggestions are to get the bar in WSJT or JTDX to about 30 dB.

Labeling minimum and maximum values on a fill color guide in #rstats #ggplot2

This took me a while to understand, and even though I think this should be built in somewhere, I ended up with the following function:

# Function to show min and max values on fill color bars.
# Inspiration from https://stackoverflow.com/a/60732101/2152245
# original_func should be something like "scales::breaks_pretty(3)"
breaks_min_max <- function(original_func) {
    function(x) {
        original_result <- original_func(x)
        breaks <- c(min(x),
                  original_result,
                  max(x))
breaks_sort <- sort(breaks)
# If values are too close, drop one of them
close <- diff(breaks_sort) < 1
breaks_sort <- breaks_sort[!close]
breaks_sort
    }
}

Note the very rough method of determining when labels will be too close together. This would need to be modified if working with negative numbers or values that are all decimals.

In use:

ggplot(mtcars,
aes(x = mpg,
y = disp,
color = qsec)) +
geom_point(size = 5) +
scale_color_continuous(breaks = breaks_min_max(scales::breaks_pretty(4)))

Result:

Update 2021-09-28:

If you have a log scale, this will also work if you use breaks_log(). Example below. This seems to be sensitive to the number of breaks you set; for the example below, 4 doesn’t work (the top and bottom values aren’t labeled), but 6 does.

ggplot(mtcars, aes(x = mpg, y = disp, color = qsec)) +
geom_point(size = 5) +
scale_color_continuous(trans = "log10",
breaks = breaks_min_max(scales::breaks_log(6)))

Social Media: Mastodon

I have a “professional” Mastodon account now at https://scholar.social/@mburtonkelly. Give a follow!

List of #APRS Projects (and interesting alternatives)

I’ve expanded my search beyond what I introduced in APRS tracker/viewer build concept. Here I will attempt to organize projects some other folks have put together.

This has been sitting in draft mode for several weeks, but I’m pushing it out now and hoping to add more as I learn.

APRS Trackers (transmitters)
- Flying Squirrel #5 – Getting ready for a March 2020 launch. – a HAB tracker made by pulling the guts out of a cheap Baofeng
- 2M Arduino 818 – a HAB tracker sold by the designer
- Tiny Trackuino – hardware design for Arduino. Trackuino software.
- Transmitter Bits
  - Adafruit Feather M0 RFM69HCW Packet Radio – 433MHz – RadioFruit – not for APRS frequency, but could be used to tie into a network on 70 cm band
APRS transceiver bits
- SPOILER ALERT! – The DRA818V works on APRS 144.390MHz – explains how a certain part can be used to transmit on the North American APRS frequency
Not APRS, but instructive
- Arduino Walkie Talkie – Triband transceiver with text-messaging capability
- ArduTrx – Open Source Hamradio Transceiver for Arduino – another neat transceiver built on the Arduino platform. Although this says “HF” on the part, it is for VHF/UHF FM operation. A bit more info here.
- HamShield 1.0 – VHF/UHF FM transceiver shield for Ardiuno. Also the
  - Hamshielf Mini and
  - HamShield: LoRa Edition – 1 Watt – 144/440/915MHz – Version 2.
- ARMAWATCH & ARMACHAT – long range radio messengers – LoRa p2p or broadcast messaging, looks interesting.
- Off The Grid Messenger – LoRa p2p messaging (Hackaday).
- Adafruit Feather M0 Radio with RFM69 Packet Radio – tutorial for radio Arduino
- ArduTrx – Open Source Hamradio Transceiver for Arduino
Not APRS, mesh networks
- Meshtastic – Mesh text communicator built on various LoRa boards, includes location information in packets
  - Overview from another angle
- Disaster.radio – Mesh text communicator, similar to Meshtastic (I have not done a deep comparison, both look like they use similar hardware).
- QMesh – A LoRa-based Voice Mesh Network
- CellSol – A LoRa “not-quite-mesh” network
- TARPN – Terrestrial Amateur Radio Packet Network – setup requires more hardware, but pretty standardized and probably much more robust than LoRa systems.
APRS, but on LoRa
- APRS via LoRa: Send your position data via LoRa!
  - Email list on groups.io
- LoRa Aprs – another APRS via LoRa page, but focused on custom hardware.
  - English translation with Google Translate
- esp32_loraprs – Amateur radio ESP32 based LoRa APRSDroid KISS Bluetooth modem + LoRa APRS-IS RX/TX iGate server over WiFI + digipeater + Codec2 DV modem (in conjunction with Android frontend application).