Re: [amsat-bb] AMSAT-BB Digest, Vol 15, Issue 408
Thanks!
KE0PBR
Paul Overn AMSAT Ambassador Twitter: @KE0PBR Website: KE0PBR.Wordpress.com
-----Original Message----- From: AMSAT-BB amsat-bb-bounces@amsat.org On Behalf Of amsat-bb-request@amsat.org Sent: Friday, October 9, 2020 7:34 AM To: amsat-bb@amsat.org Subject: AMSAT-BB Digest, Vol 15, Issue 408
Send AMSAT-BB mailing list submissions to amsat-bb@amsat.org
To subscribe or unsubscribe via the World Wide Web, visit https://www.amsat.org/mailman/listinfo/amsat-bb or, via email, send a message with subject or body 'help' to amsat-bb-request@amsat.org
You can reach the person managing the list at amsat-bb-owner@amsat.org
When replying, please edit your Subject line so it is more specific than "Re: Contents of AMSAT-BB digest..."
Today's Topics:
1. Fwd: Coming Hurricane and power outages (Robert Bruninga) 2. Re: To Tweet or Not to Tweet (Don KB2YSI) 3. Re: [Blog] Successful ISS ham demo for a young space fan! (Paulo PV8DX) 4. Re: JW7XK/LA7XK Rove to JQ78 Update (Mika Siira) 5. Re: Yaesu Az-El Rotor Controller switches (Gregory Beat) 6. JW7XK/LA7XK Rove to JQ78 Update -- update (adrian@liggins.ca) 7. NA1SS is Very Popular Today (Robert MacHale) 8. SSTV-friendly fonts (Greg D) 9. Upcoming satellite demo (saguaroastro@cox.net) 10. Re: To Tweet or Not to Tweet (Jerry Buxton) 11. Re: SSTV-friendly fonts (Loren M. Lang) 12. Re: SSTV-friendly fonts (David Jordan)
----------------------------------------------------------------------
Message: 1 Date: Thu, 8 Oct 2020 13:48:29 -0400 From: Robert Bruninga bruninga@usna.edu To: amsat bb amsat-bb@amsat.org Subject: [amsat-bb] Fwd: Coming Hurricane and power outages Message-ID: CALdCfNJ4xEktc5GabztB7mXKhsaLErN452QXehv1GC9f4NU+rQ@mail.gmail.com Content-Type: text/plain; charset="UTF-8"
For continuity of radio operations...
As another hurricane approaches the gulf coast with the potential to knock out power to tens of thousands, I was pleased to see that CQ published my article this month (Oct) on using an EV or plugin Hybrid for emergency power for days or weeks. With the 10 to 100 kWh batteries in EV's and the 50kW or so generators in hybrids, your car makes a great accessory for your house when the grid goes down.
The article is just a short condensation of some of the Emergency Power topic that is in the ARRL Energy Choices handbook I also posted greater detail from the article on this page: http://aprs.org/FrankenVolt.html
Bob, WB4APR Author http://aprs.org/Energy-Choices.html
------------------------------
Message: 2 Date: Thu, 8 Oct 2020 13:59:12 -0400 From: Don KB2YSI kb2ysi@gmail.com To: AMSAT BB amsat-bb@amsat.org Subject: Re: [amsat-bb] To Tweet or Not to Tweet Message-ID: CAAJiE8NqnFHhPqDfavCS9Bb5HpUikQbRjAhOiKMM4xpWmB_0Jw@mail.gmail.com Content-Type: text/plain; charset="UTF-8"
Throw in using a 3rd party client that kills the ads, stupid timeline "featured tweets", and other nonsense they throw in the official client. Tweetdeck on the web is way better than twitter.com is, even thought it is owned by Twitter.
On Wed, Oct 7, 2020, 20:14 nathanjwhite via AMSAT-BB amsat-bb@amsat.org wrote:
You could start with following @amsat , then try @**** insert call sign of high profile hams...or low profile
NathanN5LEX _______________________________________________ Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 3 Date: Thu, 8 Oct 2020 14:06:35 -0400 From: Paulo PV8DX paulopv8dx@gmail.com To: John Brier johnbrier@gmail.com, AMSAT BB amsat-bb@amsat.org Subject: Re: [amsat-bb] [Blog] Successful ISS ham demo for a young space fan! Message-ID: f80ca79a-36c2-1ca0-b1e5-6769ca81c622@gmail.com Content-Type: text/plain; charset=utf-8; format=flowed
Congratulations
Excellent.
73? de Paulo PV8DX
Em 08/10/2020 09:34, John Brier via AMSAT-BB escreveu:
I had a successful ISS ham demo for a young space fan last night! We received two perfect SSTV images and made contact through the recently enabled digipeater! Thanks for the QSO Scott K4KDR!
Full story/pics on my blog:
https://spacecomms.wordpress.com/2020/10/08/iss-ham-demo-for-a-young-s pace-fan/
73, John Brier KG4AKV _______________________________________________ Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the
official views of AMSAT-NA.
Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 4 Date: Thu, 8 Oct 2020 20:48:13 +0300 From: Mika Siira oh8mbn@gmail.com To: adrian@liggins.ca Cc: amsat-bb@amsat.org Subject: Re: [amsat-bb] JW7XK/LA7XK Rove to JQ78 Update Message-ID: CAAAKfqvf7ti80ESiSe1PtU0Vdxq=0cNs=NP1exRhc9_N=zJNVg@mail.gmail.com Content-Type: text/plain; charset="UTF-8"
Hello folks,
I worked JW7XK today at 1551 UTC on RS-44 sat.
-Mika, OH8MBN
to 8. lokak. 2020 klo 16.05 Adrian Liggins via AMSAT-BB (amsat-bb@amsat.org) kirjoitti:
Got a note from Halvard, LA7XK, this morning. His plane was turned back yesterday due to fog at the airport in Longyearbyen. He's currently in Northern Norway waiting for conditions to clear. When I get an update, I'll post it here.
Adrian VA3NNA _______________________________________________ Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 5 Date: Thu, 8 Oct 2020 14:22:36 -0500 From: Gregory Beat w9gb@icloud.com To: amsat-bb@amsat.org, seb@wintek.com, kl7uw@acsalaska.net, w7lrd@comcast.net Subject: Re: [amsat-bb] Yaesu Az-El Rotor Controller switches Message-ID: CA184215-46A0-4879-B818-E594D32D8892@icloud.com Content-Type: text/plain; charset=utf-8
Steve - Question about Yaesu controller rocker switches asked on July 8 and 9, 2020 by Bob Johnson, W7LRD and Ed Cole, KL7UW. == I researched this problem in 2014 after Yaesu USA Parts reported that no replacement rocker switches (for repairs) were available. Since this was after the Japanese 2011 T?hoku earthquake and tsunami, I assume the OEM suppliers to Yaesu were lost.
This is a Photo of the LAST OEM switch, from Yaesu USA Parts (before 2011), now discontinued. Photos at entry #8 (QRZ Q&A Tech Forums). LOOK at photo carefully. https://forums.qrz.com/index.php?threads/g-500a-replacement-switch.664784/
The Kenpro/Yaesu used an OFFSET Lever (Pivot) on that Rocker switch mechanism. The Paddle Lever is NOT Symmetrical about the pivot axis. Kenpro designed their front panel molds (plastic injection) of the rotator controllers to work with that specific Offset Lever style. ? The old Japanese OEM switch used rivets (thru metal pin), while the NKK levers use an outside edge plastic mobs to fit into holes on the variety of paddle/rocker options. There is not a thru pin on the NKK. == In 2014, I ordered the NNK Series M2 rocker switch parts (substitute candidate) from Mouser, when Mouser stocked NKK # M202TYW01 . ($4.80 in 2014). This part was correct size for Kenpro/Yaesu G500/G550 controllers and accepts a variety of ?Paddle? styles https://www.mouser.com/ProductDetail/633-M2022TYW01
This NKK rocker switch properly fits the Kenpro/Yaesu front panels (rotator control). https://www.mouser.com/datasheet/2/295/MrockersFlatFrame-1663268.pdf
HOWEVER, the standard NKK Levers (Paddles) are SYMMETRICAL. They do NOT have the proper OFFSET. NKK # AT4157C (Red) https://www.mouser.com/ProductDetail/633-AT4157C NKK # AT4157A (Black) https://www.mouser.com/ProductDetail/633-AT4157A NKK Switch Accessories https://www.mouser.com/datasheet/2/295/accessorieshardware-10910.pdf
=== SOLUTION ?? Someone (AMSAT member?) to design a proper ?Offset? Paddle (asymmetrical) for the standard Rocker switch mechanisms (NKK, C&K) that fit Kenpro/Yaesu rotator controllers. The Design (CAD) could then be 3D-Printed OR Injected Molded (Plastic).
greg, w9gb elmhurst, IL == Date: Thu, 8 Oct 2020 12:13:19 +0000 From: "Stephen E. Belter" seb@wintek.com To: AMSAT-BB amsat-bb@amsat.org Subject: [amsat-bb] Yaesu rotor controller switches
Would someone remind me who was looking for switches for a Yaesu G5400/G5500 rotor controller??
I've searched on the AMSAT-BB archives, but haven't discovered the correct keywords to retrieve his messages. I can probably help him.
73, Steve N9IP -- Steve Belter, seb@wintek.com
------------------------------
Message: 6 Date: Thu, 08 Oct 2020 15:26:34 -0400 From: adrian@liggins.ca To: amsat-bb@amsat.org Subject: [amsat-bb] JW7XK/LA7XK Rove to JQ78 Update -- update Message-ID: 50a5fc543ddc8846c963c8f199737eb1@liggins.ca Content-Type: text/plain; charset=US-ASCII; format=flowed
Just got the following from Halvard, LA7XK:
We arrived this afternoon. I got my antenna and radio set up earlier this evening and worked 2 EU contacts and 2 in Asiatic Russia, SSB and CW to test the radio. All OK. We then had to go to get some dinner and now I am set up for the 1929 pass, EU and maybe JA this pass, I will try to stay up as long as possible before I drive down to the hotel to get some sleep. My priority will be NA and JA.
the 2100 utc and the2300 utc passes should be OK for east NA. I will work SSB tonight around 435660 downlink.
Adrian VA3NNA
------------------------------
Message: 7 Date: Thu, 8 Oct 2020 20:03:12 +0000 (UTC) From: Robert MacHale robert.machale@yahoo.com To: AMSAT BB amsat-bb@amsat.org Subject: [amsat-bb] NA1SS is Very Popular Today Message-ID: 2076536797.819921.1602187392096@mail.yahoo.com Content-Type: text/plain; charset=UTF-8
Looks like over half the APRSAT traffic in the past 24 hours involved NA1SS. Kudos to Frank Bauer and ARISS for the new equipment. Kudos to Robert Bruninga for creating a useful protocol.
For reference - APRSAT messages:
http://www.spacecommunicator.club/igates/?reload_timer=3600?
73
Robert MacHale . KE6BLR FCC Licensed Radio Operator? .?http://www.aprsat.com/predict .?http://www.spaceCommunicator.club? . Supporting Boy Scout Merit Badges in Radio, Robotics, and Space Exploration
Silly Joke:?What did the little mountain say to the bigger mountain? Hi Cliff! He who dares not offend cannot be honest. -- THOMAS PAINE There is nothing noble in being superior to your fellow men. True nobility lies in being superior to your former self. -- ERNEST HEMINGWAY
------------------------------
Message: 8 Date: Thu, 8 Oct 2020 14:10:50 -0700 From: Greg D ko6th.greg@gmail.com To: Amsat BB AMSAT-BB@amsat.org Subject: [amsat-bb] SSTV-friendly fonts Message-ID: cb07f745-c2de-6073-b752-9ba599e54174@gmail.com Content-Type: text/plain; charset=UTF-8
Hi folks, but mostly the ARISS team,
First, thank you for hosting the extended SSTV event on the ISS. It was long enough that I was able to coach a few folks who had problems one day, have a success the next. Also thank you for including English subtitles to the predominantly Russian images, and Spanish for the one I saw regarding Equador's nanosat.
But a request... Is there a better font which could be used for future events? I noted several folks here who were able to grab an image, but couldn't read any of it, not even the part in their own native language. A sans-serif font would be a good starter, perhaps one with skinnier lines (less bold) would help too. Any text at this resolution is hard, and I'd rather pick a more friendly font than try to increase the size for readability. Pictures are more pleasing than text.
To the general population, is there a "best" font that can be recommended for the text used for Latin-based languages at this resolution, and with this sort of "propagation"?
Greg KO6TH
------------------------------
Message: 9 Date: Thu, 8 Oct 2020 20:12:02 -0700 From: saguaroastro@cox.net To: amsat-bb@amsat.org Subject: [amsat-bb] Upcoming satellite demo Message-ID: 029d01d69de9$f7305910$e5910b30$@cox.net Content-Type: text/plain; charset="us-ascii"
Rick Tejera K7TEJ from the Thunderbird Amateur Radio Club (TBARC) will be giving a presentation and demonstration of Satellite operations to the Northwest Christian School in Glendale, AZ on Nov. 11th 2020. The demo will be on SO-50 at 2323UT. I will be using our Club call WB7TBC and the church is in Grid DM33wp. I may try to get a student on the air. Please keep an ear out for us and respond to our call, the kids will appreciate it. I'll send outa reminder as the date gets closer.
73 & Thanks
Rick Tejera
Saguaro Astronomy Club
www.saguaroastro.org
Thunderbird Amateur Radio Club
www.w7tbc.org
------------------------------
Message: 10 Date: Fri, 9 Oct 2020 00:00:46 -0500 From: Jerry Buxton n0jy@amsat.org To: amsat-bb@amsat.org Subject: Re: [amsat-bb] To Tweet or Not to Tweet Message-ID: 1c8d8b71-18a5-a3d9-2445-0e9cab14ac5a@amsat.org Content-Type: text/plain; charset=utf-8
On 10/7/2020 16:59, Gerald Payton via AMSAT-BB wrote:
I have fundamentally opposed to TWITTER doe to the NONSENSE on it!
However, I see many references posted here.
I am having second thoughts about signing up. PLEASE, will someone direct
me to WHO I should follow regarding AMSAT and possibly others.
Hi Jerry,
I would suggest that it's not who but what, in the sense of AMSAT vs. a single AMSAT volunteer.? My recommendation is to follow AMSAT (the organization) tweets only.? Even tweets from individuals that are of satellite ops interest get retweeted by AMSAT, so it's a simple way to get what you might be looking for without following a clutter of tweeters.? They even retweet me if I tweet something about Engineering that is intelligent and useful information.? There is an audience looking for AMSAT information via Twitter, so I'm glad to share news on their preferred platform.? It would be foolish not to do so and somewhat un-hamlike, given that we're building stuff that is/will be available for satellite users worldwide.? That's why I started using Twitter.
There are other worthy organizations, corporations, and government agencies to follow too for your space (and other) interests that are about news and information and not random nonsense.? I follow various NASA branches, and other space/satellite related stuff like Spaceflight, SpaceX, Virgin Orbit to name a few, the corporations/agencies/organizations that are AMSAT "job" related as well as related space hobby interests.? I follow only a handful individuals, some who are AMSAT officers and a few friends/acquaintances who know how to tweet useful or interesting info and then be quiet again, for a spell.?
And let me add AMSAT-UK as a suggestion, they share in a way similar to what AMSAT does here with useful info as it comes up.?
Give Twitter a try, I'd say it's worth a look.? You can ease in and add more over time.? I'd also suggest that you don't jump in and follow a bunch right off because it might be information overload rather than informative.
And if you don't like it you can blame me, in a Tweet!? I'm a popular "public figure" for that type of stuff.? Then just close your Twitter account, and move on...
Jerry Buxton, N?JY
------------------------------
Message: 11 Date: Fri, 9 Oct 2020 03:05:14 -0700 From: "Loren M. Lang" penguin359@gmail.com To: Greg D ko6th.greg@gmail.com Cc: Amsat BB AMSAT-BB@amsat.org Subject: Re: [amsat-bb] SSTV-friendly fonts Message-ID: CACymvmeAUUz0NhkDAtvNC+SQ6874BKUmBhcWm0U99Z2yvtR73g@mail.gmail.com Content-Type: text/plain; charset="UTF-8"
If I recall, one of the big reasons computers used san-serif fonts is because they have a simpler construction and read better at low resolution. Serif is easier for humans to read large blocks of text like a book, but requires a higher resolution to be effective.
Also, I've heard some people reporting that the images were just a little less sharp than previous events like this. I haven't compared myself. I believe there is a new radio onboard. Is there a possibility that the audio path from the computer to the RF modulator is being bandwidth-limited somehow preventing the higher frequency edge transitions in the image from retaining their sharpness?
-Loren K7IW
On Thu, Oct 8, 2020, 14:12 Greg D via AMSAT-BB amsat-bb@amsat.org wrote:
Hi folks, but mostly the ARISS team,
First, thank you for hosting the extended SSTV event on the ISS. It was long enough that I was able to coach a few folks who had problems one day, have a success the next. Also thank you for including English subtitles to the predominantly Russian images, and Spanish for the one I saw regarding Equador's nanosat.
But a request... Is there a better font which could be used for future events? I noted several folks here who were able to grab an image, but couldn't read any of it, not even the part in their own native language. A sans-serif font would be a good starter, perhaps one with skinnier lines (less bold) would help too. Any text at this resolution is hard, and I'd rather pick a more friendly font than try to increase the size for readability. Pictures are more pleasing than text.
To the general population, is there a "best" font that can be recommended for the text used for Latin-based languages at this resolution, and with this sort of "propagation"?
Greg KO6TH
Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 12 Date: Fri, 9 Oct 2020 12:34:13 +0000 (UTC) From: David Jordan n4csitwo@bellsouth.net To: "Loren M. Lang" penguin359@gmail.com, "Loren M. Lang via AMSAT-BB" amsat-bb@amsat.org, Greg D ko6th.greg@gmail.com Cc: Amsat BB AMSAT-BB@amsat.org Subject: Re: [amsat-bb] SSTV-friendly fonts Message-ID: 1996431497.702568.1602246853671@mail.yahoo.com Content-Type: text/plain; charset=UTF-8
Greg,I appreciate you taking time to not only mention the resolution issue, but also share some possible solutions. I've also noticed this particular issue since most of my demods are done on my smartphone. I believe many of our ARISS team view the amsat-bb and will see your remarks, but regardless, I'll be sure to pass them along directly to our team.Thank you and everyone who participate in our ARISS SSTV events. Dave, AA4KN?ARISS PR?
Sent from AT&T Yahoo Mail on Android
On Fri, Oct 9, 2020 at 6:08 AM, Loren M. Lang via AMSAT-BBamsat-bb@amsat.org wrote: If I recall, one of the big reasons computers used san-serif fonts is because they have a simpler construction and read better at low resolution. Serif is easier for humans to read large blocks of text like a book, but requires a higher resolution to be effective.
Also, I've heard some people reporting that the images were just a little less sharp than previous events like this. I haven't compared myself. I believe there is a new radio onboard. Is there a possibility that the audio path from the computer to the RF modulator is being bandwidth-limited somehow preventing the higher frequency edge transitions in the image from retaining their sharpness?
-Loren K7IW
On Thu, Oct 8, 2020, 14:12 Greg D via AMSAT-BB amsat-bb@amsat.org wrote:
Hi folks, but mostly the ARISS team,
First, thank you for hosting the extended SSTV event on the ISS.? It was long enough that I was able to coach a few folks who had problems one day, have a success the next.? Also thank you for including English subtitles to the predominantly Russian images, and Spanish for the one I saw regarding Equador's nanosat.
But a request...? Is there a better font which could be used for future events?? I noted several folks here who were able to grab an image, but couldn't read any of it, not even the part in their own native language.? A sans-serif font would be a good starter, perhaps one with skinnier lines (less bold) would help too.? Any text at this resolution is hard, and I'd rather pick a more friendly font than try to increase the size for readability.? Pictures are more pleasing than text.
To the general population, is there a "best" font that can be recommended for the text used for Latin-based languages at this resolution, and with this sort of "propagation"?
Greg? KO6TH
Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
_______________________________________________ Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Subject: Digest Footer
_______________________________________________ Sent via amsat-bb@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT member? Join now to support the amateur satellite program! https://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
End of AMSAT-BB Digest, Vol 15, Issue 408 *****************************************
participants (1)
-
ke0pbr＠gmail.com