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The start of W0VFW

Cheers,
The 开云体育 Team

Via AI2Q Alex and K1RX Mark (formally of Cushcraft)

03/23/2020

Amateur radio volunteers from around the world have volunteered to assist University of Florida Professor Sam Lampotang and his engineering team in their quest to rapidly develop an open-source, low-cost patient ventilator that can be built anywhere from such commonly available components as PVC pipe and lawn-sprinkler valves. The amateur radio volunteers are developing Arduino-based control software that will set the respiratory rate and other key parameters in treating critically ill coronavirus victims.

Multiple volunteers responding to a call for help from Gordon Gibby, MD, KX4Z, included noted software developer Jack Purdum, W8TEE, and??uBITX transceiver maker Ashhar Farhan, VU2ESE. University of Florida physicians are working to address the critical legal aspects as the design moves closer to fruition.

The ventilator’s valves would precisely time compressed oxygen flow into patient breathing circuits under Arduino control, allowing exhausted patients with “stiff” lungs impacted by viral pneumonia to survive until their body can clear the infection. The software design team is also adding simple features such as an LCD display, encoders to choose parameters, and watchdog safety features.?-- Thanks to Gordon Gibby, KX4Z

Just thinking about the cancelation and the future and I have a few ideas to share.

Our goal here is to keep the club going and to continue in spite of the virus. Thus I share how we might do both.

1. Could we not meet via a conference call rather than in person? The Google Duo app would make this easy. Other such apps also exist for our smart phones. Then you could have a meeting and not be bothered about the virus.

Also this email group can be used to inform people about alternative meeting plans. Info can be easily shared here. Folks who do not email have friends who do and can inform them other ways.

And finally this is a radio club, so what about having a VFW net in order to bring the people together. Of course some matters would not be shared on air, like money specific items. Still this would unite your club members and provide a way of keeping us together.

All this virus stuff has our world turned upside down. Still we can come together if we can but think outside the box. I would be willing to help in any way you need me to. We need to keep us together, not avoid communication at this vital time. This isn’t going to be over at the end of March. Somehow we need to come together and not let the radio club fall apart because of the virus and the new government rules.

Thanks for listening

KE0TGA
Patricia Hawkins

--

Received this then checked hamfest web site.Confirmed as of 3PM? . My reservations plus a table for W?VFW..

My friend Tom W5KUB who lives in a suburb of Memphis, Tennessee attempted yet again to circumnavigate the world. Maybe as a kid you placed a postcard addressed to yourself on a balloon and never got a reply, or maybe you did. Did you try a note in a bottle? There's a yearning to reach out and discover.

Tom is one of those guys that deserves credit for his failure. Let's look at his success..? Tom attempted yet again to circle the world. He used a little better than a party balloon, and designed a tiny circuit card so hams around the world could track him.? The picture attached shows his payload and the "recovery team" a group of Polish hams who recovered it. See the attached picture..

Not to bore you, but Tom built a 1.5 gram payload. It flew at 40-44,000 feet using a 36 inch diameter balloon. It had 2 transmitters on board. 1 was HF for tracking over the oceans, and the other was VHF. A full description of his adventures can be found at:
Tom does much more, including a Tuesday evening video call in show- the link is

Reason I'm mentioning this is my Rochester NY buddies have assisted schools in their area to build and launch balloons as science projects too. My buddies in Maine will be talking to the International Space Station later this year.. Lot's going on in ham radio...
The HF antenna was 34 feet long and slightly bigger than a hair. Now Memphis to Poland is pretty impressive, there is a ham in England who has circumnavigated the globe multiple times..

Sorry somehow headline banner was corrupted with something...
Hamvention Canceled verified 3 sources including ARRL.org..

We use a Raspberry Pi (RPI) in both our repeaters. It is our voice ID, our controller and our converter from analog to digital plus steers us onto the internet. The possibilities are unreal.? I see W?VFW Amateur Radio Club going places with RPI and Ham radio within our extended community of Hams and Vets...

Here is a worthwhile article from Forbes Magazine:
https://www.forbes.com/sites/oracle/2020/02/12/why-oracle-engineers-love-raspberry-pi-projects/?utm_source=facebook&utm_medium=referral&utm_campaign=Oracle&fbclid=IwAR0D_D308IEAun97J2qjH0hznYY6D2PaDK91N6rm23Psg0jlhWGkdsDDYNQ#1806ce025dd6

Good Morning - Everyone gearing up for the crazy times we are living in??

Yesterday I received the parts to repair the repeater. The old Final -a Brick- Toshiba S-AV32 is no longer made. Instead we used a direct replacement -by Mitsubishi RH60H1317M1A-201.. which includes a metal case, FET's in push-pull and far superior spurious reduction. I played it 2-3 hours after the repair at my QTH then decided to return it to the VFW.
But- WE are not out of the woods.. as last night because of activity at the VFW the Router noise was again present. After Midnight the noise ceased. But that's not the only problem. COX cable leakage is rearing it's head at my QTH, and the closest COX line is 1/2 mile away. At the same time because of antenna height and location, I hear a W5 Oklahoma repeater on the same frequency. The router problem we have addressed prior and requests to contact the "guy in charger" has gone unanswered. It manifests itself as a bit of white noise during the squelch tail. I am going to attempt to place snap on ferrite chokes on the CAT 5 cables at the router. I researched that router and on the negative side they are known 2 meter noise makers. on the positive side it's claim to be able to handle "up to 45" simultaneous wi-fi connections, is a plus as I've seen 28 cellphones connected.? It is still going to be an issue regarding the Blind Hams Talk Group as that "white noise bursts" is making it in to their worldwide network.
Regarding cable leakage on 145.27 AND distant repeaters being heard. In commercial systems and even a $22 Baofeng can be programmed to eliminate the squelch breaking on the users end. Lot's of newer radio's do not have a squelch knob and squelch settings are "global to the radio" not adjustable to each frequency.

While the repeater was down for repair, I programmed the Transmitter to emit a DCS code of 071... Yaesu's and ICOMS can run split tone operation. I do not know about Kenwood. I don't own them. So if you are getting white noise bursts on 145.27 or hearing other repeaters, set your receiver code to DCS 071 and transmit PL to 103.5.

I just had a QSO with K8LR BOB in Kalamazoo Michigan and he said our audio is very good into the Blind Hams Talk Group. There is a net tonight at 8pm local.. See you there..

I was sent this about a Ham Radio Auction via the Internet. The equipment is located in Kansas. City (about 200 miles away) So some of these boat anchors, it would be worth driving to pickup.? There are FLEX radio's, Collins, Swan, Galaxy, Kenwood, and old WWII military..

Sorry to learn of your health issues Larry. Yeah dealing with doctors can sure be frustrating.

Also that part about the lunch tomorrow, the $5 or $6 per person, so can just anybody come or what? If so what are they serving? Just curious.

Thanks for sharing the repeater update info as well.

73
KE0TGA

Thursday & Friday I had an issues, I went to my witch doctor and a bone cracker... It's probably tension, it may be lack of potassium or magnesium. my cardiologist is not answering his phone. I seem to have developed spurious cramps and almost cramps.? 2 in my chest. Xrays and an EKG shows all normal- "a Cold hearted, self centered? bastard." My cardiologist is not answering once I get past "press 4 to make an appointment" and "your number 11 in line please wait".. I waited 1 hour 45 minutes, at 6pm last night the elevator music and the announcement I was "4th in line". disappeared..
Anyhow I've been prescribed a Nitroglycerin patch...So- DO NOT SHAKE ME!!! I think I'll survive the weekend.. I feel good blood pressure normal.

Regarding the repeater. In a Nutshell I got Brian W1KP's number. He is 35 years 2 way repair in Boston and was a top Vertex dealer. There has been 3-4 revisions of the Final Amplifier board. The Final Amp board we have is an early version of version 2. The Final has been refined and updated. The latest is now power MOSFETS, and metal encased to "eliminate spurious problems".? Only someone who worked on hundred of these over the years would know this.? So a new BRICK is ordered and I expect to receive it later next week.? Finally, the Vertex VXR-7000 repeater is now sold as a Motorola desktop repeater VXR-7000 for $1995 MSRP. Duplexers re-tuned and passed 75 watts continuous for over 5 minutes while being repeatedly dropped 1 inch onto my cement floor.? There is however a broken lock nut on one cavity. We will fabricate something to lock it..Hopefuly after 30+ hours it will work flawless for the next 2-3 years.

I will be at the VFW3115 Aux. Brunch 8:30-Noon. I will be there at 10am tomorrow. It's $5-6 per person.? See you there..?

Hello Radio Friends


Just want to share my thoughts on yesterday’s event. ?It went well in my option thanks to the hard work of many members. Yes it takes a team to do what we did and the team worked well together.?


As we are trying to build up our club I want to thank several folks who I believe made this a successful event. Likely I won’t get them all, as some I know and some I do not, however, I do want to encourage as we learn to work together.


First I want to thank President Pat. You did a fine job guiding me to the front to speak and giving me a chance to share about Visually Inconvenienced Hams. You directed much of what went on and you did it well. You are a pleasure to work with.


Also I would like to thank Larry and Terri. Terri your chilli and dogs tasted great. Thank you for welcoming us and even showing me where to take a seat. You Terri are quite the blessing to this club. And Larry thank you for showing me your DMR radio, getting me some lunch, and for acting as host for our event. I think you actually enjoyed giving out prizes. Job well done.


Thanks also goes out to Coach who did quite a setup outside. I heard loads of good remarks about the amazing go box and the HF you had up and running out there.?


Thank you Jennifer for your help getting folks all signed up. Because of your diligence we have records of those who came to this fine event.


This email could go on much longer, however, I don’t want to write a book lol. If I didn’t mention you please know your work was appreciated. It is my hope we will all work together on more events this fine year of 2020.


73
KE0TGA