date:20230815

Re: [BVARC] High power EFHW Antenna/ MFJ-1982HP

2023-08-15 Thread mike.williams shopjubilee.com via BVARC

Thanks Rick!

Mike KK5SC



Sent from my Galaxy



 Original message 
From: Rick Hiller via BVARC 
Date: 8/16/23 12:09 AM (GMT-06:00)
To: BRAZOS VALLEY AMATEUR RADIO CLUB 
Cc: Rick Hiller 
Subject: Re: [BVARC] High power EFHW Antenna/ MFJ-1982HP

Mike,

The Radio Hotel  Nov 2016  and May 2020 are about wire for antenna use.  
References are given for more indepth studies, etc.

Go to https://bvarc.org/home/tech-downloads/

GL and 73...Rick  W5RH -- The Radio Hotel

On Tue, Aug 15, 2023 at 5:42 PM Gus Bernard via BVARC 
mailto:bvarc@bvarc.org>> wrote:
BTW, for antenna wire, see articles by our own Rick Hiller in the technical 
section at www.bvarc.org . I think he's addressed this 
subject.  I like #14 or #12 insulated.  Solid or stranded choice depends on 
your strength and flexibility requirements. Thicker wire gives a slightly 
better bandwidth at the cost of weight.

Gus

On Tue, Aug 15, 2023, 5:30 PM Gus Bernard 
mailto:gneln...@gmail.com>> wrote:
See product design specs, as well as articles, at Balun Designs.Com. use the 
core mix type for the bands you'll operate on.  For high power, double-up on 
size 240 cores.  Youtube "TRX Bench" channel has a great 4-part video series on 
building baluns.

My experience tells me that if I want a long lasting, reliable balun (good 
quality components and workmanship that withstand the elements), it's more cost 
effective to buy off the shelf from Balun Designs or equivalent. (The amount I 
saved wasn't worth the trouble.)  Of course, making my own is fun and 
educational; but I now buy my baluns from Bob.

Gus K5GMB

On Tue, Aug 15, 2023, 10:39 AM mike.williams 
shopjubilee.com via BVARC 
mailto:bvarc@bvarc.org>> wrote:
Time to pick your brains…

I am interested in EFHW antennas for primary use on 20/40/80m – but want to be 
able to run my Worthmore 600w amplifier.
I found a MFJ model - MFJ-1982HP is rated for 800pep
https://mfjenterprises.com/products/mfj-1982hp

This antenna is available in three power ratings:
MFJ-1982LP – 30w
MFJ-1982MP – 300w
MFJ-1982HP – 800w

Anyone have experience with this antenna?



A couple of questions –

  1.  If you have experience with high power (>= 600w) transformers for EFHW 
antennas, what design did you use
 *   Core type and number of cores
*type 53 has a higher curie temp as opposed to type 43
 *   Wire AWG?
 *   I see a number of YouTube videos recommending 56:1 as 49:1
*   Comments?


  1.  What is your recommended wire for the radiation element?
 *   Material –

i. Copper over steel?

   ii. Hard-drawn copper?

  iii. Other

b.AWG?

i. Number of Strands & 
strand count?

c. Jacket material

d. Other?

Your guidance is appreciated!
’73,
Mike KK5SC


Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
Publicly available archives are available here: 
https://www.mail-archive.com/bvarc@bvarc.org/

Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
Publicly available archives are available here: 
https://www.mail-archive.com/bvarc@bvarc.org/


--
Rick Hiller
e-mail: rickhille...@gmail.com
Cell:832-474-3713
Physical: 9031 Troulon Drive
   Houston, TX 77036

Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org
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Re: [BVARC] High power EFHW Antenna/ MFJ-1982HP

2023-08-15 Thread Rick Hiller via BVARC

Mike,

The Radio Hotel  Nov 2016  and May 2020 are about wire for antenna use.
References are given for more indepth studies, etc.

Go to https://bvarc.org/home/tech-downloads/

GL and 73...Rick  W5RH -- The Radio Hotel

On Tue, Aug 15, 2023 at 5:42 PM Gus Bernard via BVARC 
wrote:

> BTW, for antenna wire, see articles by our own Rick Hiller in the
> technical section at www.bvarc.org . I think he's addressed this
> subject.  I like #14 or #12 insulated.  Solid or stranded choice depends on
> your strength and flexibility requirements. Thicker wire gives a slightly
> better bandwidth at the cost of weight.
>
> Gus
>
> On Tue, Aug 15, 2023, 5:30 PM Gus Bernard  wrote:
>
>> See product design specs, as well as articles, at Balun Designs.Com. use
>> the core mix type for the bands you'll operate on.  For high power,
>> double-up on size 240 cores.  Youtube "TRX Bench" channel has a great
>> 4-part video series on building baluns.
>>
>> My experience tells me that if I want a long lasting, reliable balun
>> (good quality components and workmanship that withstand the elements), it's
>> more cost effective to buy off the shelf from Balun Designs or equivalent.
>> (The amount I saved wasn't worth the trouble.)  Of course, making my own is
>> fun and educational; but I now buy my baluns from Bob.
>>
>> Gus K5GMB
>>
>> On Tue, Aug 15, 2023, 10:39 AM mike.williams shopjubilee.com via BVARC <
>> bvarc@bvarc.org> wrote:
>>
>>> Time to pick your brains…
>>>
>>>
>>>
>>> I am interested in EFHW antennas for primary use on 20/40/80m – but want
>>> to be able to run my Worthmore 600w amplifier.
>>>
>>> I found a MFJ model - MFJ-1982HP is rated for 800pep
>>>
>>> https://mfjenterprises.com/products/mfj-1982hp
>>>
>>>
>>>
>>> This antenna is available in three power ratings:
>>>
>>> MFJ-1982LP – 30w
>>>
>>> MFJ-1982MP – 300w
>>>
>>> *MFJ-1982HP – 800w*
>>>
>>>
>>> *Anyone have experience with this antenna?*
>>>
>>>
>>>
>>>
>>>
>>> A couple of questions –
>>>
>>>1. If you have experience with high power (>= 600w) transformers for
>>>EFHW antennas, what design did you use
>>>   1. Core type and number of cores
>>>  -  type 53 has a higher curie temp as opposed to type 43
>>>   2. Wire AWG?
>>>   3. I see a number of YouTube videos recommending 56:1 as 49:1
>>>  - Comments?
>>>
>>>
>>>
>>>1. What is your recommended wire for the radiation element?
>>>   1. Material –
>>>
>>> i. Copper over
>>> steel?
>>>
>>>ii. Hard-drawn
>>> copper?
>>>
>>>   iii. Other
>>>
>>> b.AWG?
>>>
>>> i. Number of
>>> Strands & strand count?
>>>
>>> c. Jacket material
>>>
>>> d. Other?
>>>
>>>
>>>
>>> Your guidance is appreciated!
>>>
>>> ’73,
>>>
>>> Mike KK5SC
>>>
>>> 
>>> Brazos Valley Amateur Radio Club
>>>
>>> BVARC mailing list
>>> BVARC@bvarc.org
>>> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
>>> Publicly available archives are available here:
>>> https://www.mail-archive.com/bvarc@bvarc.org/
>>>
>> 
> Brazos Valley Amateur Radio Club
>
> BVARC mailing list
> BVARC@bvarc.org
> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
> Publicly available archives are available here:
> https://www.mail-archive.com/bvarc@bvarc.org/
>


-- 
Rick Hiller
*e-mail: rickhille...@gmail.com *
*Cell:832-474-3713*
*Physical: 9031 Troulon Drive*
*   Houston, TX 77036*

Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
Publicly available archives are available here: 
https://www.mail-archive.com/bvarc@bvarc.org/

Re: [BVARC] High power EFHW Antenna/ MFJ-1982HP

2023-08-15 Thread mike.williams shopjubilee.com via BVARC

Thank you Gus!

Mike KK5SC

Sent from my T-Mobile 5G Device
Get Outlook for Android

From: BVARC  on behalf of Gus Bernard via BVARC 

Sent: Tuesday, August 15, 2023 5:30:44 PM
To: BRAZOS VALLEY AMATEUR RADIO CLUB 
Cc: Gus Bernard 
Subject: Re: [BVARC] High power EFHW Antenna/ MFJ-1982HP

See product design specs, as well as articles, at Balun Designs.Com. use the 
core mix type for the bands you'll operate on.  For high power, double-up on 
size 240 cores.  Youtube "TRX Bench" channel has a great 4-part video series on 
building baluns.

My experience tells me that if I want a long lasting, reliable balun (good 
quality components and workmanship that withstand the elements), it's more cost 
effective to buy off the shelf from Balun Designs or equivalent. (The amount I 
saved wasn't worth the trouble.)  Of course, making my own is fun and 
educational; but I now buy my baluns from Bob.

Gus K5GMB

On Tue, Aug 15, 2023, 10:39 AM mike.williams 
shopjubilee.com via BVARC 
mailto:bvarc@bvarc.org>> wrote:

Time to pick your brains…



I am interested in EFHW antennas for primary use on 20/40/80m – but want to be 
able to run my Worthmore 600w amplifier.

I found a MFJ model - MFJ-1982HP is rated for 800pep

https://mfjenterprises.com/products/mfj-1982hp



This antenna is available in three power ratings:

MFJ-1982LP – 30w

MFJ-1982MP – 300w

MFJ-1982HP – 800w


Anyone have experience with this antenna?





A couple of questions –

  1.  If you have experience with high power (>= 600w) transformers for EFHW 
antennas, what design did you use
 *   Core type and number of cores
*type 53 has a higher curie temp as opposed to type 43
 *   Wire AWG?
 *   I see a number of YouTube videos recommending 56:1 as 49:1
*   Comments?


  1.  What is your recommended wire for the radiation element?
 *   Material –

i. Copper over steel?

   ii. Hard-drawn copper?

  iii. Other

b.AWG?

i. Number of Strands & 
strand count?

c. Jacket material

d. Other?



Your guidance is appreciated!

’73,

Mike KK5SC


Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
Publicly available archives are available here: 
https://www.mail-archive.com/bvarc@bvarc.org/

Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
Publicly available archives are available here: 
https://www.mail-archive.com/bvarc@bvarc.org/

Re: [BVARC] High power EFHW Antenna/ MFJ-1982HP

2023-08-15 Thread Gus Bernard via BVARC

See product design specs, as well as articles, at Balun Designs.Com. use
the core mix type for the bands you'll operate on.  For high power,
double-up on size 240 cores.  Youtube "TRX Bench" channel has a great
4-part video series on building baluns.

My experience tells me that if I want a long lasting, reliable balun (good
quality components and workmanship that withstand the elements), it's more
cost effective to buy off the shelf from Balun Designs or equivalent. (The
amount I saved wasn't worth the trouble.)  Of course, making my own is fun
and educational; but I now buy my baluns from Bob.

Gus K5GMB

On Tue, Aug 15, 2023, 10:39 AM mike.williams shopjubilee.com via BVARC <
bvarc@bvarc.org> wrote:

> Time to pick your brains…
>
>
>
> I am interested in EFHW antennas for primary use on 20/40/80m – but want
> to be able to run my Worthmore 600w amplifier.
>
> I found a MFJ model - MFJ-1982HP is rated for 800pep
>
> https://mfjenterprises.com/products/mfj-1982hp
>
>
>
> This antenna is available in three power ratings:
>
> MFJ-1982LP – 30w
>
> MFJ-1982MP – 300w
>
> *MFJ-1982HP – 800w*
>
>
> *Anyone have experience with this antenna?*
>
>
>
>
>
> A couple of questions –
>
>1. If you have experience with high power (>= 600w) transformers for
>EFHW antennas, what design did you use
>   1. Core type and number of cores
>  -  type 53 has a higher curie temp as opposed to type 43
>   2. Wire AWG?
>   3. I see a number of YouTube videos recommending 56:1 as 49:1
>  - Comments?
>
>
>
>1. What is your recommended wire for the radiation element?
>   1. Material –
>
> i. Copper over
> steel?
>
>ii. Hard-drawn
> copper?
>
>   iii. Other
>
> b.AWG?
>
> i. Number of
> Strands & strand count?
>
> c. Jacket material
>
> d. Other?
>
>
>
> Your guidance is appreciated!
>
> ’73,
>
> Mike KK5SC
>
> 
> Brazos Valley Amateur Radio Club
>
> BVARC mailing list
> BVARC@bvarc.org
> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
> Publicly available archives are available here:
> https://www.mail-archive.com/bvarc@bvarc.org/
>

Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
Publicly available archives are available here: 
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Re: [BVARC] K5WH-117, BLT-117

2023-08-15 Thread Walter Holmes via BVARC

Pretty amazing indeed Chris..

 

Great work on that..

Walter/K5WH

 

From: Chris Medlin  
Sent: Tuesday, August 15, 2023 1:49 PM
To: BRAZOS VALLEY AMATEUR RADIO CLUB 
Cc: walt...@k5wh.net
Subject: Re: [BVARC] K5WH-117, BLT-117

 

Walter, the balloon with my callsign associated on wspr has been up 313 days. 
Launched from Tennessee, it crossed the equator (a very rare occurrence) and 
has been circling the globe down there. 17+ laps.  

 

I hope you can get that kind of longevity. I’m watching/cheering from the 
sidelines. 

 

73

Chris/AC5CM

Typos brought to you by iPhone





On Aug 15, 2023, at 09:55, Walter Holmes via BVARC mailto:bvarc@bvarc.org> > wrote:

 

I love the responses.. they are all great.

 

Truth be known, just about every component on the trackers we fly today, 
already come from China. We’re just sending them back to them. 

 

As far as the software/firmware, it’s Open Source, and published on multiple 
publicly accessible github sites. 

 

So that immediately gets around any potential ITAR restrictions that might come 
into play.

 

Several other trackers are built in Turkey and other places overseas that also 
have been cleared for sending to other countries.

 

So we’re all good.

 

Now, that’s not to say that someone couldn’t do something very different and 
risk multiple violations of course, but I think we’re still several years away 
from the IC’s we use in or devices being manufactured in the US, if they ever 
do at all. And if they do, they will STILL be made over there as well, so 
there’s nothing secret about these.

 

As far as the Mac machines, if anyone can make me a Mac that can come in 
weighing less than 12 grams, I’ll take a thousand of those right now. 

 

Walter/K5WH

 

From: BVARC mailto:bvarc-boun...@bvarc.org> > On 
Behalf Of M Reiter via BVARC
Sent: Tuesday, August 15, 2023 7:51 AM
To: BRAZOS VALLEY AMATEUR RADIO CLUB mailto:bvarc@bvarc.org> >
Cc: M Reiter mailto:beachcat...@gmail.com> >
Subject: Re: [BVARC] K5WH-117, BLT-117

 

this actually brings up a good point, it is illegal to send devices with very 
current encryption to foreign nations, I know you would not think there is 
anything on a balloon that is privileged but there are many things installed on 
operating systems in the US that are not for export.  I would think some care 
should be used to make sure that a balloon once captured by the Chinese or 
other nation,  would not contain any proprietary software or encryption 
algorithms.

just thinking out loud from a computer security point of view.

marc

KI5ZHO

 

 

On Fri, Aug 11, 2023 at 11:26 AM Scott Medbury via BVARC mailto:bvarc@bvarc.org> > wrote:

The Chinese have it and are going to clone. They are going to send in the 
clones.

 

73 ... Scott KD5FBA 

 

On Fri, Aug 11, 2023, 9:32 AM Craig Coussens via BVARC mailto:bvarc@bvarc.org> > wrote:

Thank you Walter, that was a fascinating flight! Craig/K8CPC

 

From: BVARC mailto:bvarc-boun...@bvarc.org> > On 
Behalf Of Walter Holmes via BVARC
Sent: Thursday, August 10, 2023 9:32 PM
To: 'BRAZOS VALLEY AMATEUR RADIO CLUB' mailto:bvarc@bvarc.org> >
Cc: walt...@k5wh.net  
Subject: [BVARC] K5WH-117, BLT-117

 

Quick Update……

 

After several weeks of flight from the BVARC Field Day site, it appears we 
haven’t heard from the balloon in over a week now, so it’s probably down for 
the count.

 

It was certainly a very interesting flight with all the backwards trips it was 
making. 

 

As we close the books on this one, we are already testing more trackers as I 
type, as well as testing a NEW tracking/reporting application script for 
extracting and propagating the information into all the formal reporting sites.

 

So much more to come. Below is a snapshot of the full flight.

 

Many thanks for allowing the South Texas Balloon Launch Team participate in 
Field Day with you guys.

 

All the best,

Walter/K5WH

 

 

 

Walter/K5WH

 


Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org  
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
Publicly available archives are available here: 
https://www.mail-archive.com/bvarc@bvarc.org/ 


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http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
Publicly available archives are available here: 
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Re: [BVARC] K5WH-117, BLT-117

2023-08-15 Thread Chris Medlin via BVARC

Walter, the balloon with my callsign associated on wspr has been up 313 days. 
Launched from Tennessee, it crossed the equator (a very rare occurrence) and 
has been circling the globe down there. 17+ laps.

I hope you can get that kind of longevity. I’m watching/cheering from the 
sidelines.

73
Chris/AC5CM

Typos brought to you by iPhone

On Aug 15, 2023, at 09:55, Walter Holmes via BVARC  wrote:


I love the responses.. they are all great.

Truth be known, just about every component on the trackers we fly today, 
already come from China. We’re just sending them back to them. 

As far as the software/firmware, it’s Open Source, and published on multiple 
publicly accessible github sites.

So that immediately gets around any potential ITAR restrictions that might come 
into play.

Several other trackers are built in Turkey and other places overseas that also 
have been cleared for sending to other countries.

So we’re all good.

Now, that’s not to say that someone couldn’t do something very different and 
risk multiple violations of course, but I think we’re still several years away 
from the IC’s we use in or devices being manufactured in the US, if they ever 
do at all. And if they do, they will STILL be made over there as well, so 
there’s nothing secret about these.

As far as the Mac machines, if anyone can make me a Mac that can come in 
weighing less than 12 grams, I’ll take a thousand of those right now. 

Walter/K5WH

From: BVARC  On Behalf Of M Reiter via BVARC
Sent: Tuesday, August 15, 2023 7:51 AM
To: BRAZOS VALLEY AMATEUR RADIO CLUB 
Cc: M Reiter 
Subject: Re: [BVARC] K5WH-117, BLT-117

this actually brings up a good point, it is illegal to send devices with very 
current encryption to foreign nations, I know you would not think there is 
anything on a balloon that is privileged but there are many things installed on 
operating systems in the US that are not for export.  I would think some care 
should be used to make sure that a balloon once captured by the Chinese or 
other nation,  would not contain any proprietary software or encryption 
algorithms.
just thinking out loud from a computer security point of view.
marc
KI5ZHO


On Fri, Aug 11, 2023 at 11:26 AM Scott Medbury via BVARC 
mailto:bvarc@bvarc.org>> wrote:
The Chinese have it and are going to clone. They are going to send in the 
clones.

73 ... Scott KD5FBA

On Fri, Aug 11, 2023, 9:32 AM Craig Coussens via BVARC 
mailto:bvarc@bvarc.org>> wrote:
Thank you Walter, that was a fascinating flight! Craig/K8CPC

From: BVARC mailto:bvarc-boun...@bvarc.org>> On Behalf 
Of Walter Holmes via BVARC
Sent: Thursday, August 10, 2023 9:32 PM
To: 'BRAZOS VALLEY AMATEUR RADIO CLUB' mailto:bvarc@bvarc.org>>
Cc: walt...@k5wh.net
Subject: [BVARC] K5WH-117, BLT-117

Quick Update……

After several weeks of flight from the BVARC Field Day site, it appears we 
haven’t heard from the balloon in over a week now, so it’s probably down for 
the count.

It was certainly a very interesting flight with all the backwards trips it was 
making. 

As we close the books on this one, we are already testing more trackers as I 
type, as well as testing a NEW tracking/reporting application script for 
extracting and propagating the information into all the formal reporting sites.

So much more to come. Below is a snapshot of the full flight.

Many thanks for allowing the South Texas Balloon Launch Team participate in 
Field Day with you guys.

All the best,
Walter/K5WH



Walter/K5WH


Brazos Valley Amateur Radio Club

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BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
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Re: [BVARC] K5WH-117, BLT-117

2023-08-15 Thread Walter Holmes via BVARC

Feel free to join us any time you get the chance Keith.

 

http://www.k5wh.net/zoom/ 

 

Sure hope you get out of that place really soon.

Walter/K5WH

 

From: BVARC  On Behalf Of Keith Dutson via BVARC
Sent: Tuesday, August 15, 2023 10:04 AM
To: Walter Holmes via BVARC 
Cc: Keith Dutson 
Subject: Re: [BVARC] K5WH-117, BLT-117

 

Walter,

 

I am currently in rehab.  I would like to join you zoom session.  Need a link.

 

73, Keith NM5G

 

On Tuesday, August 15, 2023 at 09:54:58 AM CDT, Walter Holmes via BVARC 
mailto:bvarc@bvarc.org> > wrote: 

 

 

I love the responses.. they are all great.

 

Truth be known, just about every component on the trackers we fly today, 
already come from China. We’re just sending them back to them. 

 

As far as the software/firmware, it’s Open Source, and published on multiple 
publicly accessible github sites. 

 

So that immediately gets around any potential ITAR restrictions that might come 
into play.

 

Several other trackers are built in Turkey and other places overseas that also 
have been cleared for sending to other countries.

 

So we’re all good.

 

Now, that’s not to say that someone couldn’t do something very different and 
risk multiple violations of course, but I think we’re still several years away 
from the IC’s we use in or devices being manufactured in the US, if they ever 
do at all. And if they do, they will STILL be made over there as well, so 
there’s nothing secret about these.

 

As far as the Mac machines, if anyone can make me a Mac that can come in 
weighing less than 12 grams, I’ll take a thousand of those right now. 

 

Walter/K5WH

 

From: BVARC mailto:bvarc-boun...@bvarc.org> > On 
Behalf Of M Reiter via BVARC
Sent: Tuesday, August 15, 2023 7:51 AM
To: BRAZOS VALLEY AMATEUR RADIO CLUB mailto:bvarc@bvarc.org> >
Cc: M Reiter mailto:beachcat...@gmail.com> >
Subject: Re: [BVARC] K5WH-117, BLT-117

 

this actually brings up a good point, it is illegal to send devices with very 
current encryption to foreign nations, I know you would not think there is 
anything on a balloon that is privileged but there are many things installed on 
operating systems in the US that are not for export.  I would think some care 
should be used to make sure that a balloon once captured by the Chinese or 
other nation,  would not contain any proprietary software or encryption 
algorithms.

just thinking out loud from a computer security point of view.

marc

KI5ZHO

 

 

On Fri, Aug 11, 2023 at 11:26 AM Scott Medbury via BVARC mailto:bvarc@bvarc.org> > wrote:

The Chinese have it and are going to clone. They are going to send in the 
clones.

 

73 ... Scott KD5FBA 

 

On Fri, Aug 11, 2023, 9:32 AM Craig Coussens via BVARC mailto:bvarc@bvarc.org> > wrote:

Thank you Walter, that was a fascinating flight! Craig/K8CPC

 

From: BVARC mailto:bvarc-boun...@bvarc.org> > On 
Behalf Of Walter Holmes via BVARC
Sent: Thursday, August 10, 2023 9:32 PM
To: 'BRAZOS VALLEY AMATEUR RADIO CLUB' mailto:bvarc@bvarc.org> >
Cc: walt...@k5wh.net  
Subject: [BVARC] K5WH-117, BLT-117

 

Quick Update……

 

After several weeks of flight from the BVARC Field Day site, it appears we 
haven’t heard from the balloon in over a week now, so it’s probably down for 
the count.

 

It was certainly a very interesting flight with all the backwards trips it was 
making. 

 

As we close the books on this one, we are already testing more trackers as I 
type, as well as testing a NEW tracking/reporting application script for 
extracting and propagating the information into all the formal reporting sites.

 

So much more to come. Below is a snapshot of the full flight.

 

Many thanks for allowing the South Texas Balloon Launch Team participate in 
Field Day with you guys.

 

All the best,

Walter/K5WH

 

 

 

Walter/K5WH

 


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Re: [BVARC] High power EFHW Antenna/ MFJ-1982HP

2023-08-15 Thread Sean - N5LNK via BVARC

I have the MP version and love it. I made many DX contacts with it. I have had 
it in a couple different configurations. When I was able to string it out 
straight I had no problems with it getting out on 10-80m running 100w on my 
FT991a. The squirrels recently sent it to the ground for me so I am now looking 
into another location to put it back on the air as my main antenna. 

73 de
Sean - N5LNK

> On Aug 15, 2023, at 10:40 AM, mike.williams shopjubilee.com via BVARC 
>  wrote:
> 
> 
> Time to pick your brains…
> 
>  
> 
> I am interested in EFHW antennas for primary use on 20/40/80m – but want to 
> be able to run my Worthmore 600w amplifier.
> 
> I found a MFJ model - MFJ-1982HP is rated for 800pep
> 
> https://mfjenterprises.com/products/mfj-1982hp
> 
>  
> 
> This antenna is available in three power ratings:
> 
> MFJ-1982LP – 30w
> 
> MFJ-1982MP – 300w
> 
> MFJ-1982HP – 800w
> 
> 
> 
> Anyone have experience with this antenna?
> 
> 
> 
> 
> 
>  
> 
> A couple of questions –
> 
> If you have experience with high power (>= 600w) transformers for EFHW 
> antennas, what design did you use
> Core type and number of cores 
>  type 53 has a higher curie temp as opposed to type 43
> Wire AWG?
> I see a number of YouTube videos recommending 56:1 as 49:1
> Comments?
> 
> 
> What is your recommended wire for the radiation element?
> Material –
> i. Copper over steel?
> 
>ii. Hard-drawn copper?
> 
>   iii. Other
> 
> b.AWG?
> 
> i. Number of Strands 
> & strand count?
> 
> c. Jacket material
> 
> d. Other?
> 
>  
> 
> Your guidance is appreciated!
> 
> ’73,
> 
> Mike KK5SC
> 
> 
> 
> Brazos Valley Amateur Radio Club
> 
> BVARC mailing list
> BVARC@bvarc.org
> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
> Publicly available archives are available here: 
> https://www.mail-archive.com/bvarc@bvarc.org/ 

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[BVARC] High power EFHW Antenna/ MFJ-1982HP

2023-08-15 Thread mike.williams shopjubilee.com via BVARC

Time to pick your brains…

I am interested in EFHW antennas for primary use on 20/40/80m – but want to be 
able to run my Worthmore 600w amplifier.
I found a MFJ model - MFJ-1982HP is rated for 800pep
https://mfjenterprises.com/products/mfj-1982hp

This antenna is available in three power ratings:
MFJ-1982LP – 30w
MFJ-1982MP – 300w
MFJ-1982HP – 800w

Anyone have experience with this antenna?



A couple of questions –

  1.  If you have experience with high power (>= 600w) transformers for EFHW 
antennas, what design did you use
 *   Core type and number of cores
*type 53 has a higher curie temp as opposed to type 43
 *   Wire AWG?
 *   I see a number of YouTube videos recommending 56:1 as 49:1
*   Comments?


  1.  What is your recommended wire for the radiation element?
 *   Material –

i. Copper over steel?

   ii. Hard-drawn copper?

  iii. Other

b.AWG?

i. Number of Strands & 
strand count?

c. Jacket material

d. Other?

Your guidance is appreciated!
’73,
Mike KK5SC


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Re: [BVARC] Study material for the Extra exam

2023-08-15 Thread Darren Harrison via BVARC

Nice to know! I used this when studying for my Extra!! I know they were 
discussing going out of business, guess someone bought the company to keep it 
going?

73!
Darren Harrison
W5AKC

From: BVARC  on behalf of rodney martinez via BVARC 

Date: Monday, August 14, 2023 at 11:02 PM
To: BRAZOS VALLEY AMATEUR RADIO CLUB , Gus Bernard via BVARC 

Cc: rodney martinez , Gus Bernard 
Subject: Re: [BVARC] Study material for the Extra exam
HamTestOnline.Com is still in business.  It is an effective training system.  I 
bought 2 new students the course to become Hams.  It is simple to learn, and at 
your own pace.  I am sure other training systems are at least equivalent, but 
this is the one I know that my students learn from easiest at this moment.  And 
at $20 - $30 per course, I can afford to buy it for them in order to get new 
Hams into our world.

73's
Rod Martinez
NK5Q
Sent from Yahoo Mail on 
Android

On Mon, Aug 14, 2023 at 18:38, Gus Bernard via BVARC
 wrote:

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Re: [BVARC] K5WH-117, BLT-117

2023-08-15 Thread Keith Dutson via BVARC

 Walter,
I am currently in rehab.  I would like to join you zoom session.  Need a link.
73, Keith NM5G
On Tuesday, August 15, 2023 at 09:54:58 AM CDT, Walter Holmes via BVARC 
 wrote:  
 
 
I love the responses..     they are all great.

  

Truth be known, just about every component on the trackers we fly today, 
already come from China. We’re just sending them back to them. 

  

As far as the software/firmware, it’s Open Source, and published on multiple 
publicly accessible github sites. 

  

So that immediately gets around any potential ITAR restrictions that might come 
into play.

  

Several other trackers are built in Turkey and other places overseas that also 
have been cleared for sending to other countries.

  

So we’re all good.

  

Now, that’s not to say that someone couldn’t do something very different and 
risk multiple violations of course, but I think we’re still several years away 
from the IC’s we use in or devices being manufactured in the US, if they ever 
do at all. And if they do, they will STILL be made over there as well, so 
there’s nothing secret about these.

  

As far as the Mac machines, if anyone can make me a Mac that can come in 
weighing less than 12 grams, I’ll take a thousand of those right now. 

  

Walter/K5WH

  

From: BVARC  On Behalf Of M Reiter via BVARC
Sent: Tuesday, August 15, 2023 7:51 AM
To: BRAZOS VALLEY AMATEUR RADIO CLUB 
Cc: M Reiter 
Subject: Re: [BVARC] K5WH-117, BLT-117

  

this actually brings up a good point, it is illegal to send devices with very 
current encryption to foreign nations, I know you would not think there is 
anything on a balloon that is privileged but there are many things installed on 
operating systems in the US that are not for export.  I would think some care 
should be used to make sure that a balloon once captured by the Chinese or 
other nation,  would not contain any proprietary software or encryption 
algorithms.

just thinking out loud from a computer security point of view.

marc

KI5ZHO

  

  

On Fri, Aug 11, 2023 at 11:26 AM Scott Medbury via BVARC  
wrote:


The Chinese have it and are going to clone. They are going to send in the 
clones.

  

73 ... Scott KD5FBA 

  

On Fri, Aug 11, 2023, 9:32 AM Craig Coussens via BVARC  wrote:


Thank you Walter, that was a fascinating flight! Craig/K8CPC

 

From: BVARC  On Behalf Of Walter Holmes via BVARC
Sent: Thursday, August 10, 2023 9:32 PM
To: 'BRAZOS VALLEY AMATEUR RADIO CLUB' 
Cc: walt...@k5wh.net
Subject: [BVARC] K5WH-117, BLT-117

 

Quick Update……

 

After several weeks of flight from the BVARC Field Day site, it appears we 
haven’t heard from the balloon in over a week now, so it’s probably down for 
the count.

 

It was certainly a very interesting flight with all the backwards trips it was 
making. 

 

As we close the books on this one, we are already testing more trackers as I 
type, as well as testing a NEW tracking/reporting application script for 
extracting and propagating the information into all the formal reporting sites.

 

So much more to come. Below is a snapshot of the full flight.

 

Many thanks for allowing the South Texas Balloon Launch Team participate in 
Field Day with you guys.

 

All the best,

Walter/K5WH



 

 

 

Walter/K5WH

 


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Re: [BVARC] K5WH-117, BLT-117

2023-08-15 Thread Ron Litt via BVARC

War is hell.

Sent from my Verizon, Samsung Galaxy smartphone
Get Outlook for Android

From: BVARC  on behalf of Walter Holmes via BVARC 

Sent: Tuesday, August 15, 2023 9:54:44 AM
To: 'BRAZOS VALLEY AMATEUR RADIO CLUB' 
Cc: walt...@k5wh.net ; 'M Reiter' 
Subject: Re: [BVARC] K5WH-117, BLT-117

I love the responses.. they are all great.

Truth be known, just about every component on the trackers we fly today, 
already come from China. We’re just sending them back to them. 

As far as the software/firmware, it’s Open Source, and published on multiple 
publicly accessible github sites.

So that immediately gets around any potential ITAR restrictions that might come 
into play.

Several other trackers are built in Turkey and other places overseas that also 
have been cleared for sending to other countries.

So we’re all good.

Now, that’s not to say that someone couldn’t do something very different and 
risk multiple violations of course, but I think we’re still several years away 
from the IC’s we use in or devices being manufactured in the US, if they ever 
do at all. And if they do, they will STILL be made over there as well, so 
there’s nothing secret about these.

As far as the Mac machines, if anyone can make me a Mac that can come in 
weighing less than 12 grams, I’ll take a thousand of those right now. 

Walter/K5WH

From: BVARC  On Behalf Of M Reiter via BVARC
Sent: Tuesday, August 15, 2023 7:51 AM
To: BRAZOS VALLEY AMATEUR RADIO CLUB 
Cc: M Reiter 
Subject: Re: [BVARC] K5WH-117, BLT-117

this actually brings up a good point, it is illegal to send devices with very 
current encryption to foreign nations, I know you would not think there is 
anything on a balloon that is privileged but there are many things installed on 
operating systems in the US that are not for export.  I would think some care 
should be used to make sure that a balloon once captured by the Chinese or 
other nation,  would not contain any proprietary software or encryption 
algorithms.

just thinking out loud from a computer security point of view.

marc

KI5ZHO

On Fri, Aug 11, 2023 at 11:26 AM Scott Medbury via BVARC 
mailto:bvarc@bvarc.org>> wrote:

The Chinese have it and are going to clone. They are going to send in the 
clones.

73 ... Scott KD5FBA

On Fri, Aug 11, 2023, 9:32 AM Craig Coussens via BVARC 
mailto:bvarc@bvarc.org>> wrote:

Thank you Walter, that was a fascinating flight! Craig/K8CPC

From: BVARC mailto:bvarc-boun...@bvarc.org>> On Behalf 
Of Walter Holmes via BVARC
Sent: Thursday, August 10, 2023 9:32 PM
To: 'BRAZOS VALLEY AMATEUR RADIO CLUB' mailto:bvarc@bvarc.org>>
Cc: walt...@k5wh.net
Subject: [BVARC] K5WH-117, BLT-117

Quick Update……

After several weeks of flight from the BVARC Field Day site, it appears we 
haven’t heard from the balloon in over a week now, so it’s probably down for 
the count.

It was certainly a very interesting flight with all the backwards trips it was 
making. 

As we close the books on this one, we are already testing more trackers as I 
type, as well as testing a NEW tracking/reporting application script for 
extracting and propagating the information into all the formal reporting sites.

So much more to come. Below is a snapshot of the full flight.

Many thanks for allowing the South Texas Balloon Launch Team participate in 
Field Day with you guys.

All the best,

Walter/K5WH

Walter/K5WH

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Re: [BVARC] K5WH-117, BLT-117

2023-08-15 Thread Walter Holmes via BVARC

I love the responses.. they are all great.

 

Truth be known, just about every component on the trackers we fly today, 
already come from China. We’re just sending them back to them. 

 

As far as the software/firmware, it’s Open Source, and published on multiple 
publicly accessible github sites. 

 

So that immediately gets around any potential ITAR restrictions that might come 
into play.

 

Several other trackers are built in Turkey and other places overseas that also 
have been cleared for sending to other countries.

 

So we’re all good.

 

Now, that’s not to say that someone couldn’t do something very different and 
risk multiple violations of course, but I think we’re still several years away 
from the IC’s we use in or devices being manufactured in the US, if they ever 
do at all. And if they do, they will STILL be made over there as well, so 
there’s nothing secret about these.

 

As far as the Mac machines, if anyone can make me a Mac that can come in 
weighing less than 12 grams, I’ll take a thousand of those right now. 

 

Walter/K5WH

 

From: BVARC  On Behalf Of M Reiter via BVARC
Sent: Tuesday, August 15, 2023 7:51 AM
To: BRAZOS VALLEY AMATEUR RADIO CLUB 
Cc: M Reiter 
Subject: Re: [BVARC] K5WH-117, BLT-117

 

this actually brings up a good point, it is illegal to send devices with very 
current encryption to foreign nations, I know you would not think there is 
anything on a balloon that is privileged but there are many things installed on 
operating systems in the US that are not for export.  I would think some care 
should be used to make sure that a balloon once captured by the Chinese or 
other nation,  would not contain any proprietary software or encryption 
algorithms.

just thinking out loud from a computer security point of view.

marc

KI5ZHO

 

 

On Fri, Aug 11, 2023 at 11:26 AM Scott Medbury via BVARC mailto:bvarc@bvarc.org> > wrote:

The Chinese have it and are going to clone. They are going to send in the 
clones.

 

73 ... Scott KD5FBA 

 

On Fri, Aug 11, 2023, 9:32 AM Craig Coussens via BVARC mailto:bvarc@bvarc.org> > wrote:

Thank you Walter, that was a fascinating flight! Craig/K8CPC

 

From: BVARC mailto:bvarc-boun...@bvarc.org> > On 
Behalf Of Walter Holmes via BVARC
Sent: Thursday, August 10, 2023 9:32 PM
To: 'BRAZOS VALLEY AMATEUR RADIO CLUB' mailto:bvarc@bvarc.org> >
Cc: walt...@k5wh.net  
Subject: [BVARC] K5WH-117, BLT-117

 

Quick Update……

 

After several weeks of flight from the BVARC Field Day site, it appears we 
haven’t heard from the balloon in over a week now, so it’s probably down for 
the count.

 

It was certainly a very interesting flight with all the backwards trips it was 
making. 

 

As we close the books on this one, we are already testing more trackers as I 
type, as well as testing a NEW tracking/reporting application script for 
extracting and propagating the information into all the formal reporting sites.

 

So much more to come. Below is a snapshot of the full flight.

 

Many thanks for allowing the South Texas Balloon Launch Team participate in 
Field Day with you guys.

 

All the best,

Walter/K5WH



 

 

 

Walter/K5WH

 


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Re: [BVARC] K5WH-117, BLT-117

2023-08-15 Thread Jeff Greer via BVARC

I'm no expert, but I suspect that any software going up with a ham balloon is 
probably something the Chinese gov't could download themselves without too much 
trouble...  Unless K5WH is putting his custom missile guidance system on that 
teensy board...

From: BVARC  on behalf of M Reiter via BVARC 

Sent: Tuesday, August 15, 2023 8:53 AM
To: BRAZOS VALLEY AMATEUR RADIO CLUB 
Cc: M Reiter 
Subject: Re: [BVARC] K5WH-117, BLT-117

the best way would be to actually read the licensing page that everyone skips 
when they install software.  there can be notices not to export in there.
the CIA publishes guidelines on what level of encryption can be exported.  ( 
they can crack everything else).
I may not be easy,  but I would hate to be arrested because my Balloon had 
something on it that it should not.
Marc.

On Tue, Aug 15, 2023 at 8:43 AM Eddie Runner via BVARC 
mailto:bvarc@bvarc.org>> wrote:
You Said:
 I would think some care should be used to make sure that a balloon once 
captured by the Chinese or other nation,  would not contain any proprietary 
software or encryption algorithms.
just thinking out loud from a computer security point of view.

How on earth would you go about making sure this is not the case??
Do you have a a list or something??   I can't find one...
Eddie (NU5K)

On Tuesday, August 15, 2023 at 07:51:35 AM CDT, M Reiter via BVARC 
mailto:bvarc@bvarc.org>> wrote:

this actually brings up a good point, it is illegal to send devices with very 
current encryption to foreign nations, I know you would not think there is 
anything on a balloon that is privileged but there are many things installed on 
operating systems in the US that are not for export.  I would think some care 
should be used to make sure that a balloon once captured by the Chinese or 
other nation,  would not contain any proprietary software or encryption 
algorithms.
just thinking out loud from a computer security point of view.
marc
KI5ZHO

On Fri, Aug 11, 2023 at 11:26 AM Scott Medbury via BVARC 
mailto:bvarc@bvarc.org>> wrote:
The Chinese have it and are going to clone. They are going to send in the 
clones.

73 ... Scott KD5FBA

On Fri, Aug 11, 2023, 9:32 AM Craig Coussens via BVARC 
mailto:bvarc@bvarc.org>> wrote:

Thank you Walter, that was a fascinating flight! Craig/K8CPC

From: BVARC mailto:bvarc-boun...@bvarc.org>> On Behalf 
Of Walter Holmes via BVARC
Sent: Thursday, August 10, 2023 9:32 PM
To: 'BRAZOS VALLEY AMATEUR RADIO CLUB' mailto:bvarc@bvarc.org>>
Cc: walt...@k5wh.net
Subject: [BVARC] K5WH-117, BLT-117

Quick Update……

After several weeks of flight from the BVARC Field Day site, it appears we 
haven’t heard from the balloon in over a week now, so it’s probably down for 
the count.

It was certainly a very interesting flight with all the backwards trips it was 
making. 

As we close the books on this one, we are already testing more trackers as I 
type, as well as testing a NEW tracking/reporting application script for 
extracting and propagating the information into all the formal reporting sites.

So much more to come. Below is a snapshot of the full flight.

Many thanks for allowing the South Texas Balloon Launch Team participate in 
Field Day with you guys.

All the best,

Walter/K5WH

[X]

Walter/K5WH

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Re: [BVARC] K5WH-117, BLT-117

2023-08-15 Thread M Reiter via BVARC

the best way would be to actually read the licensing page that everyone
skips when they install software.  there can be notices not to export in
there.
the CIA publishes guidelines on what level of encryption can be exported.
( they can crack everything else).
I may not be easy,  but I would hate to be arrested because my Balloon had
something on it that it should not.
Marc.


On Tue, Aug 15, 2023 at 8:43 AM Eddie Runner via BVARC 
wrote:

> *You Said: *
> * I would think some care should be used to make sure that a balloon once
> captured by the Chinese or other nation,  would not contain any proprietary
> software or encryption algorithms.*
> *just thinking out loud from a computer security point of view.*
>
> How on earth would you go about making sure this is not the case??
> Do you have a a list or something??   I can't find one...
> Eddie (NU5K)
>
>
>
>
>
> On Tuesday, August 15, 2023 at 07:51:35 AM CDT, M Reiter via BVARC <
> bvarc@bvarc.org> wrote:
>
>
> this actually brings up a good point, it is illegal to send devices with
> very current encryption to foreign nations, I know you would not think
> there is anything on a balloon that is privileged but there are many things
> installed on operating systems in the US that are not for export.  I would
> think some care should be used to make sure that a balloon once captured by
> the Chinese or other nation,  would not contain any proprietary software or
> encryption algorithms.
> just thinking out loud from a computer security point of view.
> marc
> KI5ZHO
>
>
> On Fri, Aug 11, 2023 at 11:26 AM Scott Medbury via BVARC 
> wrote:
>
> The Chinese have it and are going to clone. They are going to send in the
> clones.
>
> 73 ... Scott KD5FBA
>
> On Fri, Aug 11, 2023, 9:32 AM Craig Coussens via BVARC 
> wrote:
>
> Thank you Walter, that was a fascinating flight! Craig/K8CPC
>
>
>
> *From:* BVARC  *On Behalf Of *Walter Holmes via
> BVARC
> *Sent:* Thursday, August 10, 2023 9:32 PM
> *To:* 'BRAZOS VALLEY AMATEUR RADIO CLUB' 
> *Cc:* walt...@k5wh.net
> *Subject:* [BVARC] K5WH-117, BLT-117
>
>
>
> Quick Update……
>
>
>
> After several weeks of flight from the BVARC Field Day site, it appears we
> haven’t heard from the balloon in over a week now, so it’s probably down
> for the count.
>
>
>
> It was certainly a very interesting flight with all the backwards trips it
> was making. 
>
>
>
> As we close the books on this one, we are already testing more trackers as
> I type, as well as testing a NEW tracking/reporting application script for
> extracting and propagating the information into all the formal reporting
> sites.
>
>
>
> So much more to come. Below is a snapshot of the full flight.
>
>
>
> Many thanks for allowing the South Texas Balloon Launch Team participate
> in Field Day with you guys.
>
>
>
> All the best,
>
> Walter/K5WH
>
>
>
>
>
>
>
> Walter/K5WH
>
>
> 
> Brazos Valley Amateur Radio Club
>
> BVARC mailing list
> BVARC@bvarc.org
> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
> Publicly available archives are available here:
> https://www.mail-archive.com/bvarc@bvarc.org/
>
> 
> Brazos Valley Amateur Radio Club
>
> BVARC mailing list
> BVARC@bvarc.org
> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
> Publicly available archives are available here:
> https://www.mail-archive.com/bvarc@bvarc.org/
>
> 
> Brazos Valley Amateur Radio Club
>
> BVARC mailing list
> BVARC@bvarc.org
> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
> Publicly available archives are available here:
> https://www.mail-archive.com/bvarc@bvarc.org/
> 
> Brazos Valley Amateur Radio Club
>
> BVARC mailing list
> BVARC@bvarc.org
> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
> Publicly available archives are available here:
> https://www.mail-archive.com/bvarc@bvarc.org/
>

Brazos Valley Amateur Radio Club

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Re: [BVARC] K5WH-117, BLT-117

2023-08-15 Thread Eddie Runner via BVARC

 You Said:  I would think some care should be used to make sure that a balloon 
once captured by the Chinese or other nation,  would not contain any 
proprietary software or encryption algorithms.just thinking out loud from a 
computer security point of view.
How on earth would you go about making sure this is not the case??   Do you 
have a a list or something??   I can't find one...  Eddie (NU5K)




On Tuesday, August 15, 2023 at 07:51:35 AM CDT, M Reiter via BVARC 
 wrote:  
 
 this actually brings up a good point, it is illegal to send devices with very 
current encryption to foreign nations, I know you would not think there is 
anything on a balloon that is privileged but there are many things installed on 
operating systems in the US that are not for export.  I would think some care 
should be used to make sure that a balloon once captured by the Chinese or 
other nation,  would not contain any proprietary software or encryption 
algorithms.just thinking out loud from a computer security point of 
view.marcKI5ZHO

On Fri, Aug 11, 2023 at 11:26 AM Scott Medbury via BVARC  
wrote:

The Chinese have it and are going to clone. They are going to send in the 
clones.
73 ... Scott KD5FBA 
On Fri, Aug 11, 2023, 9:32 AM Craig Coussens via BVARC  wrote:


Thank you Walter, that was a fascinating flight! Craig/K8CPC

 

From: BVARC On Behalf Of Walter Holmes via BVARC
Sent: Thursday, August 10, 2023 9:32 PM
To: 'BRAZOS VALLEY AMATEUR RADIO CLUB' 
Cc: walt...@k5wh.net
Subject: [BVARC] K5WH-117, BLT-117

 

Quick Update……

 

After several weeks of flight from the BVARC Field Day site, it appears we 
haven’t heard from the balloon in over a week now, so it’s probably down for 
the count.

 

It was certainly a very interesting flight with all the backwards trips it was 
making.

 

As we close the books on this one, we are already testing more trackers as I 
type, as well as testing a NEW tracking/reporting application script for 
extracting and propagating the information into all the formal reporting sites.

 

So much more to come. Below is a snapshot of the full flight.

 

Many thanks for allowing the South Texas Balloon Launch Team participate in 
Field Day with you guys.

 

All the best,

Walter/K5WH



 

 

 

Walter/K5WH

 

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Re: [BVARC] K5WH-117, BLT-117

2023-08-15 Thread M Reiter via BVARC

this actually brings up a good point, it is illegal to send devices with
very current encryption to foreign nations, I know you would not think
there is anything on a balloon that is privileged but there are many things
installed on operating systems in the US that are not for export.  I would
think some care should be used to make sure that a balloon once captured by
the Chinese or other nation,  would not contain any proprietary software or
encryption algorithms.
just thinking out loud from a computer security point of view.
marc
KI5ZHO


On Fri, Aug 11, 2023 at 11:26 AM Scott Medbury via BVARC 
wrote:

> The Chinese have it and are going to clone. They are going to send in the
> clones.
>
> 73 ... Scott KD5FBA
>
> On Fri, Aug 11, 2023, 9:32 AM Craig Coussens via BVARC 
> wrote:
>
>> Thank you Walter, that was a fascinating flight! Craig/K8CPC
>>
>>
>>
>> *From:* BVARC  *On Behalf Of *Walter Holmes via
>> BVARC
>> *Sent:* Thursday, August 10, 2023 9:32 PM
>> *To:* 'BRAZOS VALLEY AMATEUR RADIO CLUB' 
>> *Cc:* walt...@k5wh.net
>> *Subject:* [BVARC] K5WH-117, BLT-117
>>
>>
>>
>> Quick Update……
>>
>>
>>
>> After several weeks of flight from the BVARC Field Day site, it appears
>> we haven’t heard from the balloon in over a week now, so it’s probably down
>> for the count.
>>
>>
>>
>> It was certainly a very interesting flight with all the backwards trips
>> it was making. 
>>
>>
>>
>> As we close the books on this one, we are already testing more trackers
>> as I type, as well as testing a NEW tracking/reporting application script
>> for extracting and propagating the information into all the formal
>> reporting sites.
>>
>>
>>
>> So much more to come. Below is a snapshot of the full flight.
>>
>>
>>
>> Many thanks for allowing the South Texas Balloon Launch Team participate
>> in Field Day with you guys.
>>
>>
>>
>> All the best,
>>
>> Walter/K5WH
>>
>>
>>
>>
>>
>>
>>
>> Walter/K5WH
>>
>>
>> 
>> Brazos Valley Amateur Radio Club
>>
>> BVARC mailing list
>> BVARC@bvarc.org
>> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
>> Publicly available archives are available here:
>> https://www.mail-archive.com/bvarc@bvarc.org/
>>
> 
> Brazos Valley Amateur Radio Club
>
> BVARC mailing list
> BVARC@bvarc.org
> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
> Publicly available archives are available here:
> https://www.mail-archive.com/bvarc@bvarc.org/
>

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