Date   

Re: PPS Mask - Sew Your Own

Greg - KO6TH
 
Edited

Hi Jim,

Ok, so let me ask a little differently.  Given that I strongly do not believe that I have been exposed - been at home with only the cat for the past 3 weeks except for one outage a week ago to get cat food (did a parking lot pickup) - then should I:

a)  Wear the "dust mask", or
b)  Make a cloth-based pleated mask as shown in the NYT article (https://www.nytimes.com/article/how-to-make-face-mask-coronavirus.html)

Is either choice about the same?

Second question... 

I've not seen much by way of guidance on the use of gloves.  Presume yes.  I have a box of the blue "Nitrile" type.  Put them on when I exit the car, shop, take them off (taking care not to touch the outsides) after putting stuff in the car and dumping the cart back in its corral.  Use brown paper bags instead of the reusable plastic kind (virus life is shorter on cardboard).  Wash hands when I get home before and after I put stuff away.  Good plan?

Third question (sorry!)...  My daughter's boyfriend is offering to go shopping for me.  But I'm thinking it would be safer for me to go by myself during Safeway's "old folks hours" (Tues / Thur early morning) than for him to come up from the Lincoln area to Auburn to shop, or to shop down in Lincoln and transport the groceries up to Auburn.  I.e., best not to travel between the two areas, especially when there are specific hours at the local Auburn store dedicated to higher-risk folks.  Yes?

Thanks for the guidance,

Greg  KO6TH


Jim - N6MED wrote:

Greg --
You are spot on re "... protect others from someone who is sick ..."
The dust masks you find at the hardware, from what I'm able to tell when compared to similar masks available for one time use on a medical unit are w-a-y better than a cotton scarf or cotton home made mask if you are trying to protect yourself from a spit-spray cloud left hanging in the air by someone who just sneezed. Cotton seems way to porous.

But, fit is everything.

The quandry is that an infected individual would wear a mask to prevent expelling mist or droplets into his/her surroundings. A non-infected individual would wear one to prevent inhaling "large" droplets (a relative term, ref the link in my post that follows). I typically worn this type of mask to protect me when entering a patients room who had a respiratory disease (e.g., the flu). A care giver would wear an N-95 (or even an N-100) to protect against 3 micron and smaller infections particulates.

BTW: I exchanged texts with a critical care (i.e., ICU) nurse friend who works at Sutter Auburn Faith hospital. The nurses over there are in dire straits. She said "We are rationed 1 surgical mask per day (worn 24/7 except meals) and N-95 is for 1 RN per shift. No one is allowed in COVID rooms except RN, MD, or RT" (RT=respiratory therapists). If anyone has a stash of N-95s or a group can make a bunch of surgical masks (shop towel material?), maybe it could help those on the front lines over there.

One style of surgical mask. Note, that with this and similar designs, after securing the lower tie, the pleats are pulled apart as the mask is pulled up over the nose.



Stay well!!!


Coronavirus and misinformation that is floating around like airborne cooties

Jim - N6MED
 

Full disclosure for those in the club that don’t know my background:
I am a registered nurse, retired from the Auburn Faith Hospital telemetry medical unit. “Telemetry medical” pertains to acute care for those who have a primary medical condition with an underlying heart condition.

For the Common Good, with permission of the group, I’m frustrated by so much misinformation “out there” put forth by the ignorant in the media. By BS meter starts bouncing in the red zone as soon as I hear someone say “I heard that …” without citing the source.

Regardless of your favorite media outlet, whether cable, broadcast, FaceBook, Twitter, or whatever, I hold the opinion that the only reliable information on SARS-Cov-2 (the cootie, a Coronavirus) and COVID-19 (the disease one gets) is from medical and scientific resources. There are many of these, including but certainly not limited to the CDC, WHO, Johns-Hopkins, Stanford Medical, etc. etc. Certainly the medical and scientific experts reporting on the media are reliable sources, e.g., Dr. Fauci, Dr. Birx, Dr. Gupta (though a neurologist know what questions to ask of his expert colleagues). I’ve found off-shore resources as well that have reliable info based on science.

With all the conversation relating to droplet and contact precautions, there is a lot of confusion (and even inconsistent term usage by doctors) regarding “airborne,” “aerosol,” and “droplet.” Now, with the cautions re infected folks shedding virus (i.e., being infectious) several days before they are symptomatic, the term “airborne” becomes even clouded.

In the context of “airborne” I think of Legionnaires disease which was spread through the HVAC system of the convention facility/hotel in 1976 (Ref: https://www.medicinenet.com/legionnaire_disease_and_pontiac_fever/article.htm). Also, measles and TB where contagion (i.e., infectious particles) dwell time in the air can be anywhere from 30 min to several hours. “Aerosole” is that fine mist that accompanies the spray of a sneeze or speaks (the latter that is currently cited by the CDC as the means of transmission of asymptomatic infected individuals).

According to recent research at Virginia Tech, Linsey Marr, an aerosol scientist at Virginia Tech "If the air were perfectly still, it would take a half hour to fall from a height of 6 feet down to the ground. And, of course, the air isn't perfectly still so it can easily be blown around during that time and stay in the air for longer or shorter." Even a 5 micrometer droplet can linger in the air. "If the air were perfectly still, it would take a half hour to fall from a height of 6 feet down to the ground. And, of course, the air isn't perfectly still," says Marr. "So it can easily be blown around during that time and stay in the air for longer or shorter."
(Refs re airborne, aerosol, and droplet: https://www.npr.org/sections/goatsandsoda/2020/04/03/825639323/scientists-probe-how-coronavirus-might-travel-through-the-air)

http://ata-medical.com/2017/04/03/what-is-airborne-transmission/

https://emcrit.org/ibcc/covid19/#transmission

 

Contact is, well, contact, i.e., touching an inanimate object that has been contaminated either by an infected individual transferring cooties to it (poorly washed hands touching a surface) or droplets from a sneeze or cough.  

We just watched the movie (available on Netflix) Contagion. Besides the usual dramatization, Hollywood did it right. Released in 2011, IMHO, it offers a realistic portrayal of what we are facing right now. Fortunately, the mortality rate (thus far) is much less than that depicted in the movie.

If you’ve hung in here with me this far, you deserve a chuckle. Enjoy this bit from Jimmy Kimmel and Samuel L. Jackson:

https://www.youtube.com/watch?v=sSrbxyna4z4


Lastly, a link Dennis WU6X passed onto me: https://ncov2019.live/


It's all about science where it's better to figure stuff out than make shit up. Jus' sayin'

Stay well!!!
Jim / N6MED

 


Re: PPS Mask - Sew Your Own

Jim - N6MED
 
Edited

Greg --
You are spot on re "... protect others from someone who is sick ..."
The dust masks you find at the hardware, from what I'm able to tell when compared to similar masks available for one time use on a medical unit are w-a-y better than a cotton scarf or cotton home made mask if you are trying to protect yourself from a spit-spray cloud left hanging in the air by someone who just sneezed. Cotton seems way to porous.

But, fit is everything.

The quandry is that an infected individual would wear a mask to prevent expelling mist or droplets into his/her surroundings. A non-infected individual would wear one to prevent inhaling "large" droplets (a relative term, ref the link in my post that follows). I typically worn this type of mask to protect me when entering a patients room who had a respiratory disease (e.g., the flu). A care giver would wear an N-95 (or even an N-100) to protect against 3 micron and smaller infections particulates.

BTW: I exchanged texts with a critical care (i.e., ICU) nurse friend who works at Sutter Auburn Faith hospital. The nurses over there are in dire straits. She said "We are rationed 1 surgical mask per day (worn 24/7 except meals) and N-95 is for 1 RN per shift. No one is allowed in COVID rooms except RN, MD, or RT" (RT=respiratory therapists). If anyone has a stash of N-95s or a group can make a bunch of surgical masks (shop towel material?), maybe it could help those on the front lines over there.

One style of surgical mask. Note, that with this and similar designs, after securing the lower tie, the pleats are pulled apart as the mask is pulled up over the nose.



Stay well!!!


Re: PPS Mask - Sew Your Own

Greg - KO6TH
 

Hi Jim,

Thanks for the info!  A question:

Would a simple non-M95 "dust mask" work as well as a hand-made cotton mask or scarf?  As I understand the purpose, the idea is to protect others from someone who is sick but is not yet symptomatic.  So, droplet containment on the inside is what they're after, not preventing ingress from the outside.

Greg  KO6TH


Jim - N6MED wrote:

Gentlemen, thanks for sharing all.  There is a lot of info and videos "out there" re rolling your own. Folks seem to be paying more attention to mask construction and little to proper donning and doffing. With all the video in the media of folks wearing masks, from Asians on the street in the home countries to even docs in a US ER, it's very apparent (to this retired professional, at least), that folks aren't wearing masks correctly.
Proper fit is equally as important as constructing an effective mask, for, if you don't put it on properly all your construction efforts will be for naught.

When "donning" (putting on) a mask, regardless if it has ear loops or a pair of ties, the malleable strip of metal at your nose must be formed across your nose bridge using two fingers to form it on both sides of your nose.Do NOT pinch the metal piece between your thumb and forefinger to form it else a gap will be formed with a resulting air leak.

If the mask has ties, first secure one around your neck fitting the mask under your chin, pull upper part of the mask up over the bridge of your nose, then secure the second tie above your ears and behind your head.

Humor me: I've included a couple of video links that show proper procedure for donning and doffing "surgical" masks.

Donning and Doffing Facial Protection (mask)
Mask with ear loops:
https://www.youtube.com/watch?v=f6mjqbtonG4Mask
With ties:
https://www.youtube.com/watch?v=jWnTCZWYOBw

Blue shop towels as an an improved material over cotton for home made mask:
https://www.businessinsider.com/homemade-mask-using-hydro-knit-shop-towel-filters-better-2020-4

Caution: Do not use hepa filter (e.g., Kirby vacuum hepa filters) to make a mask:
https://www.youtube.com/watch?v=qiYbXsIcI7E
(I didn't know this and, other than what this particular MD says about hepa filters, I cannot attest to the use of fiberglass in the construction of hepa filters.)

Stay well, everyone!
Jim / N6MED


Re: PPS Mask - Sew Your Own

Jim - N6MED
 

Gentlemen, thanks for sharing all.  There is a lot of info and videos "out there" re rolling your own. Folks seem to be paying more attention to mask construction and little to proper donning and doffing. With all the video in the media of folks wearing masks, from Asians on the street in the home countries to even docs in a US ER, it's very apparent (to this retired professional, at least), that folks aren't wearing masks correctly.
Proper fit is equally as important as constructing an effective mask, for, if you don't put it on properly all your construction efforts will be for naught.

When "donning" (putting on) a mask, regardless if it has ear loops or a pair of ties, the malleable strip of metal at your nose must be formed across your nose bridge using two fingers to form it on both sides of your nose.Do NOT pinch the metal piece between your thumb and forefinger to form it else a gap will be formed with a resulting air leak.

If the mask has ties, first secure one around your neck fitting the mask under your chin, pull upper part of the mask up over the bridge of your nose, then secure the second tie above your ears and behind your head.

Humor me: I've included a couple of video links that show proper procedure for donning and doffing "surgical" masks.

Donning and Doffing Facial Protection (mask)
Mask with ear loops:
https://www.youtube.com/watch?v=f6mjqbtonG4Mask
With ties:
https://www.youtube.com/watch?v=jWnTCZWYOBw

Blue shop towels as an an improved material over cotton for home made mask:
https://www.businessinsider.com/homemade-mask-using-hydro-knit-shop-towel-filters-better-2020-4

Caution: Do not use hepa filter (e.g., Kirby vacuum hepa filters) to make a mask:
https://www.youtube.com/watch?v=qiYbXsIcI7E
(I didn't know this and, other than what this particular MD says about hepa filters, I cannot attest to the use of fiberglass in the construction of hepa filters.)

Stay well, everyone!
Jim / N6MED


Re: PPS Mask - Sew Your Own

Jef - N5JEF
 

Thanks for sharing these Rob.  Inspiring to hear about some of the range of responses to our shared situation.

- Jef  

On Sun, Apr 5, 2020 at 8:19 AM Rob Newburn <robnewburn@...> wrote:
My wife made some yesterday. After testing/fitting, this modification worked well to keep it tight fitting on the top around the nose. (See pic) 

Also, wifey said the nail salon ladies just put a folded tissue inside theirs.

Lastly, the female jail inmates are making masks. Apparently, you just pull up in front and a deputy will bring one out to you. Go for broke road in Roseville (justice center).

Stay safe and ham it up,
Rob KM6YKX



Re: PPS Mask - Sew Your Own

KM6YKX - Rob Newburn
 
Edited

My wife made some yesterday. After testing/fitting, this modification worked well to keep it tight fitting on the top around the nose. (See pic) 

Also, wifey said the nail salon ladies just put a folded tissue inside theirs.

Lastly, the female jail inmates are making masks. Apparently, you just pull up in front and a deputy will bring one out to you. Go for broke road in Roseville (justice center).

Stay safe and ham it up,
Rob KM6YKX



PPS Mask - Sew Your Own

Brian - AI6US
 
Edited

  http://nyti.ms/2JpHZIG     
You can also sew a HEPPA filter material inside the mask, (I think you can get them at Home Depot), or attach  a Female Sanitary panty shield inside, to prevent liquid from entering you nose and mouth. By removing the shield, its machine washable. 

Enjoy folks, jim KQ6VP


Re: Placer Health Officer now recommends face covering on top of social distancing

Orion - AI6JB
 

Thank you Carl for sharing!

Stay Healthy!

73
Orion, AI6JB


From: sfarc@w6ek.groups.io <sfarc@w6ek.groups.io> on behalf of Carl - N6CKV <cfirst@...>
Sent: Friday, April 3, 2020 1:00 AM
To: sfarc@w6ek.groups.io <sfarc@w6ek.groups.io>
Subject: [from W6EK Groups.io] Placer Health Officer now recommends face covering on top of social distancing
 
All

An important video from Placer County Health

https://vimeo.com/403470122/c4e12385e9


Re: O'Scope for loan? #repair

Michael Corrigan
 

I have a portable scope, Fluke 190-202, available for loan if you're still in need.

Mike Corrigan 
KK6PVS 
mjc6063@... 


Placer Health Officer now recommends face covering on top of social distancing

Carl - N6CKV
 

All

An important video from Placer County Health

https://vimeo.com/403470122/c4e12385e9


Re: Instant Pot Hardboiled Eggs

Gerry - WA6E
 

Thanks, Nathan.  Will have to try this.

Gerry
WA6E

On 4/2/2020 3:17 PM, Nathan Chilton - K6NDC wrote:

After the topic came up during the Coffee Break net this morning, I asked my wife for the hardboiled egg recipe she's been using.  She tried a number of different methods and ended up with eggs that broke apart when she was attempting to peel them, until she found this recipe.  Now, virtually every egg peels perfectly.

Instant Pot Hardboiled Eggs

  1. Plug in your Instant Pot.
  2. Place the rack that came with your Instant Pot in the bottom.
  3. Place desired number of eggs on the rack.
  4. Put 1 cup of water in the bottom of the Instant Pot.
  5. Put the lid on and lock the lid.
  6. Turn on the manual setting and set your Instant Pot to 7 minutes.
  7. Once your Instant Pot is finished use the quick release valve.
  8. Allow eggs to cool in the refrigerator until they are cool enough to handle.
  9. Peel, enjoy or make deviled eggs!


Instant Pot Hardboiled Eggs

Nathan - N5NDC
 

After the topic came up during the Coffee Break net this morning, I asked my wife for the hardboiled egg recipe she's been using.  She tried a number of different methods and ended up with eggs that broke apart when she was attempting to peel them, until she found this recipe.  Now, virtually every egg peels perfectly.

Instant Pot Hardboiled Eggs

  1. Plug in your Instant Pot.
  2. Place the rack that came with your Instant Pot in the bottom.
  3. Place desired number of eggs on the rack.
  4. Put 1 cup of water in the bottom of the Instant Pot.
  5. Put the lid on and lock the lid.
  6. Turn on the manual setting and set your Instant Pot to 7 minutes.
  7. Once your Instant Pot is finished use the quick release valve.
  8. Allow eggs to cool in the refrigerator until they are cool enough to handle.
  9. Peel, enjoy or make deviled eggs!


Re: Club By-Laws

Gerry - WA6E
 

I found one.  It is dated 2013.  The pdf copy is dated 2016.  Now to try and figure out if they are the same or different.  It's possible somebody made a PDF copy of the bylaws in 2016 and that was the date of the file.  Next update let's put the date of the update in the document margin.

On 4/1/2020 4:34 PM, Nathan Chilton - K6NDC wrote:
I've searched this groups.io site, and all I can find is the PDF.


Re: Club By-Laws

Orion - AI6JB
 

Gerry,

I did the last revision. I will dig it up and email.

73
Orion Endres, AI6JB
1201 Wood Oak Court, Roseville, CA 95747-7383
(916) 788-8251 H \\ (916) 534-8251 C

What the heck does “73” mean? 73 is morse code short hand for “Best Regards” used by Ham radio operators. It’s origin goes all the way back to the landline telegraph days.

-----Original Message-----
From: sfarc@w6ek.groups.io <sfarc@w6ek.groups.io> On Behalf Of Gerry - WA6E
Sent: Tuesday, March 31, 2020 18:49
To: sfarc@w6ek.groups.io; ai6us@titaniumsatellite.com
Subject: [from W6EK Groups.io] Club By-Laws

Does anybody have a copy of the club by-laws in Microsoft Word format? I.e. a .doc format? I have a copy but it is a pdf copy and I don't have the ability to convert a pdf to a .doc.

If you do have such a document, would you forward a copy to me, please.

Thanks.

Gerry
WA6E


Re: Club By-Laws

Nathan - N5NDC
 

I've searched this groups.io site, and all I can find is the PDF.


Updated Event: Volunteer Event: Foresthill Divide Gravel Grinder - POSTPONED - Saturday, 9 May 2020 #cal-invite

sfarc@w6ek.groups.io Calendar <sfarc@...>
 

Volunteer Event: Foresthill Divide Gravel Grinder - POSTPONED

When:
Saturday, 9 May 2020

Where:
Foresthill Divide

Organizer: Mike Perry mrprry2@...

Description:
POSTPONED - This is an opportunity for you to volunteer support for a Mountain bike event on Foresthill Divide run by Folsom Auburn Trail Riders Action Coalition (FATRAC). Start/Finish and net control at Foresthill, with aid and radio stations at Sugar Pine Reservoir, China Wall, Robinson's Flat, and Gorman Ranch. Station times vary and depend upon when the rides pass through. Sugar Pine will start in the morning, Gorman Ranch will end much later. Radio stations will operate in the field on two meters. Relatively easy access to the station sites. This is a great event for new hams wanting to learn to operate in field conditions!


FATRAC Foresthill Fondo Postponed

Michael - N6MRP
 

Hello All,

FATRAC advises that, due to the COVID-19 situation, the Foresthill Fondo "Gravel Grinder" mountain bike event, scheduled for May 9, has been postponed to an undermined date.

We thank those who had volunteered to provide radio communications for the May 9 event.

73

Mike Perry N6MRP
SFARC Volunteer Events Coordinator


Re: O'Scope for loan? #repair

Gary - KC3PO
 

Hi Robert,

I need a scope to use for troubleshooting, not teaching. If you're willing to loan, that would be very much appreciated. I'm not ready for it yet... I have a couple other things in the queue ahead of it. If your "limited amount of time" would be a week or so, that would probably work great! Until I know exactly what I'm dealing with, it's hard to know exactly how long I'd need it - but it would be a fairly short period of time.

- Gary  KC3PO


Re: Club By-Laws

Dennis - WU6X
 

Also, the CD I passed to my replacement Secretary, also contains a copy. There are multiple iterations if the Bylaws file. Let me know if you can’t find it and I’ll send you a link. Note the date and version number to ensure you have the latest copy. 

Dennis
530-305-0180
iPhone Mobile

On Mar 31, 2020, at 7:24 PM, Jeff - KM6RGO <jamontrail@...> wrote:


Gerry,

If you cannot find the word file, send me the .pdf, I can convert it for you.  I have full version of Acrobat Pro, it should not be too difficult.

Jeff, KM6RGO

On Tue, Mar 31, 2020 at 6:48 PM Gerry - WA6E <gjbrent@...> wrote:
Does anybody have a copy of the club by-laws in Microsoft Word format? 
I.e. a .doc format?  I have a copy but it is a pdf copy and I don't have
the ability to convert a pdf to a .doc.

If you do have such a document, would you forward a copy to me, please.

Thanks.

Gerry
WA6E




--
Dennis - WU6X

1981 - 2000 of 7395