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CX2SA > SATDIG 27.09.20 16:00z 794 Lines 30138 Bytes #999 (0) @ WW
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Sent: 200927/1556Z @:CX2SA.SAL.URY.SOAM #:40581 [Salto] FBB7.00e $:AMSATBB15390
From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. Re: feeding CP antennas (Gary)
2. Re: Connection Question (Jeff Davis)
3. ANS-271 AMSAT News Service Weekly Bulletins (kd4iz@?????.????
4. Re: Sources for LMR400UF (73 Bob W7LRD)
5. Are you interested in a 70 cm ParaLindy kit? (Curt Laumann)
6. Coax Sources (Gerald Payton)
7. Re: Sources for LMR400UF (Burns Fisher)
8. Re: Sources for LMR400UF (Don KB2YSI)
----------------------------------------------------------------------
Message: 1
Date: Sat, 26 Sep 2020 23:20:26 +0000
From: Gary <gary_mayfield@???????.???>
To: Cathryn Mataga <cathryn@????????????.???>, "AMSAT-BB@?????.????
<AMSAT-BB@?????.???>
Subject: Re: [amsat-bb] feeding CP antennas
Message-ID:
<CH2PR13MB3864AE58EDED914D67F1D7958A370@?????????????.????????.????.???????.??
?>
Content-Type: text/plain; charset="utf-8"
Rather than explain how to do it correctly it was easier to say just don't
do it. So they said don't do it.
If you want to read how to do it correctly I have published antenna guru
Kent Britain (WA5VJB) paper on the subject with permission here:
http://www.kk0sd.net/metalboom/metalboom.htm
If you would like to see pictures of how I followed his instructions you can
seen the pictures near the bottom of the page here:
http://www.kk0sd.net/sattower/sattower02.htm
73,
Joe kk0sd
-----Original Message-----
From: AMSAT-BB <amsat-bb-bounces@?????.???> On Behalf Of Cathryn Mataga via
AMSAT-BB
Sent: Saturday, September 26, 2020 4:23 PM
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] feeding CP antennas
I thought the manual for the M2 antenna specifically warned about this.
That the feed line should droop off the back?? Last time I monkeyed up with
antennas, I even made this change.? Not sure if this made a difference,
though, as I had another issue that turned out to be my real problem.
On 9/20/2020 5:07 PM, Jim Walls via AMSAT-BB wrote:
> On 09/20/2020 12:50, Gary via AMSAT-BB wrote:
>> I always ran my feedline along the boom of the antenna to the
>> crossboom. Then along the crossboom back to the AZ/EL rotator with a
>> loop around the rotator.
>
> Same here.
>
_______________________________________________
Sent via AMSAT-BB@?????.???. 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: 2
Date: Sat, 26 Sep 2020 19:27:48 -0400
From: Jeff Davis <ke9v@???.???>
To: AMSAT-BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Connection Question
Message-ID: <412BB1BC-315E-4461-93C5-2904FB0A608E@???.???>
Content-Type: text/plain; charset=utf-8
Thanks for all the helpful replies. Much appreciated. I?m going to assemble
something with a switch and will incorporate a few of the ideas shared. When
it?s done I?ll share it here. Thanks again!
73 Jeff KE9V
> On Sep 26, 2020, at 10:25 AM, Jeff Davis via AMSAT-BB <amsat-bb@?????.???>
wrote:
>
> LMR400 routed into the shack to the main transceiver. Curious how others
have implemented a semi-elegant solution for using these antennas with FCD+
or other dongle requiring an SMA connection.
>
> I know how to do it clumsily, I?m interested in learning how you're doing
that nicely?
------------------------------
Message: 3
Date: Sat, 26 Sep 2020 20:03:12 -0400
From: <kd4iz@?????.???>
To: <amsat-bb@?????.???>
Subject: [amsat-bb] ANS-271 AMSAT News Service Weekly Bulletins
Message-ID: <001d01d69461$985823a0$c9086ae0$@?????.???>
Content-Type: text/plain; charset="iso-8859-9"
AMSAT NEWS SERVICE
ANS-271
The AMSAT News Service bulletins are a free, weekly news and infor-
mation service of AMSAT, The Radio Amateur Satellite Corporation. ANS
publishes news related to Amateur Radio in Space including reports on
the activities of a worldwide group of Amateur Radio operators who
share an active interest in designing, building, launching and commun-
icating through analog and digital Amateur Radio satellites.
The news feed on http://www.amsat.org publishes news of Amateur
Radio in Space as soon as our volunteers can post it.
Please send any amateur satellite news or reports to:
ans-editor@?????.???
You can sign up for free e-mail delivery of the AMSAT News Service
Bulletins via the ANS List; to join this list see:
http://www.amsat.org/mailman/listinfo/ans
In this edition:
* 2020 Virtual AMSAT Space Symposium and Annual General Meeting
* Reminder: Current AMSAT Journal is available on Member Portal
* AMSAT-DL Online Symposium
* AMSAT-UK Convention
* ARRL LOTW new user guide
* AMSAT Field Day Results for 2020 have been posted
* ARISS News
* Upcoming Satellite Operations
* Hamfests, Conventions, Maker Faires, and Other Events
* Satellite Shorts From All Over
SB SAT @ AMSAT $ANS-271.01
ANS-271 AMSAT News Service Weekly Bulletins
AMSAT News Service Bulletin 271.01
>From AMSAT HQ KENSINGTON, MD.
DATE 2020 September 27
To All RADIO AMATEURS
BID: $ANS-271.01
2020 Virtual AMSAT Space Symposium Announcement:
The 2020 Virtual AMSAT Space Symposium and Annual General Meeting will
be held on Saturday, October 17th from 9:00am CDT - 5:00pm CDT (UTC -5).
Symposium presentations will be a combination of pre-recorded video
segments along with a question and answer sessions held via a Zoom
meeting.
The Symposium will be made available for free live on AMSAT's YouTube
channel.
Registered attendees will receive a digital copy of the AMSAT Symposium
Proceedings and will be entitled to join the Zoom meeting. Only
registered attendees will be able to participate in the question and
answer sessions. Registered attendees will also be entered into prize
drawings. Registration is free and available only for AMSAT members.
Registration will close on Friday, October 16th at 5:00pm CDT.
Proposals for papers and Symposium presentations are invited on any
topic of interest to the amateur satellite community. We request a
tentative title of your presentation as soon as possible.
Final papers for the Symposium Proceedings must be submitted by October
5, 2020 to Dan Schultz, N8FGV, n8fgv@???.???.
Symposium presentations should be limited to 15 minutes of pre-recorded
video. Video presentations must be submitted by October 10, 2020 to Paul
Stoetzer, N8HM, n8hm@????.???. We ask that presenters be available to
take questions via Zoom immediately following the airing of their
pre-recorded video.
Tentative Schedule
9:00am CDT Opening Remarks
9:15am CDT - 12:45pm CDT General Presentations
1:00pm CDT - 2:00pm CDT AMSAT Education / CubeSat Simulator
2:00pm CDT - 3:00pm CDT ARISS / AREx update
3:00pm CDT - 4:00pm CDT AMSAT Engineering
4:00pm CDT - 5:00pm CDT 2020 AMSAT Annual General Meeting
(ANS thanks Paul Overn, KE0PBR, AMSAT Events page manager for the above
information)
---------------------------------------------------------------------
Reminder: July/August AMSAT Journal Is Available on Member Portal
Due to COVID-19, the July/August 2020 issue of The AMSAT Journal will
only be available to members on AMSAT's Member Portal. Please visit
launch.amsat.org to view/download your copy today.
The AMSAT Journal is a bi-monthly magazine for amateur radio in space
enthusiasts, published by the Radio Amateur Satellite Corporation
(AMSAT). Each issue is your source for hardware and software projects,
technical tips, STEM initiatives, operational activities, and news from
around the world.
Inside the Current Issue
Engineering Update, Jerry Buxton N0JY
User Services Update, Robert Bankston KE4AL
Treasurer's Report, Robert Bankston KE4AL
Educational Relations Update, Alan Johnston KU2Y
AMSAT Field Day 2020, Bruce Paige KK5DO
For Beginners - Amateur Radio Satellite Primer VI,
Keith Baker KB1SF/VE2KSF
Satellite Cyber Threats, Omar ?lvarez-C?rdenas XE1AO; Miguel A.
Garc?a-Ruiz VE3BKM; Margarita G. MayoralBaldivia XE1BMG; Ra?l
T. Aquino-Santos (SWL)
Integration of a Distributed Ground Station Network, M.A.Mendoza-
B?rcenas (SWL); Rafael Prieto-Mel?ndez (SWL); Alejandro Padr?n-
God?nez (SWL); Gerardo Calva-Olmos (SWL), Omar ?lvarez-C?rdenas
XE1AO; Margarita G. Mayoral-Baldivia XE1BMG; Alfonso TamezRod-
r?guez . XE2O
Satellite Antenna Tracking Using Goto Telescope Mounts,
Dwayne Sinclair . NA6US
[ANS thanks AMSAT for the above information]
+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
Due to the COVID-19 pandemic, the AMSAT office
is closed until further notice. For details, please visit
https://www.amsat.org/amsat-office-closed-until-further-notice/
+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
AMSAT-UK Convention Announcement:
The Online AMSAT-UK Convention takes place on Sunday, October 11, from
11am BST (10:00 GMT) to approximately 5pm, with a break for lunch, and
several short breaks during the day. You don't have to be a member of
AMSAT-UK to participate, and the event is free of charge but please
register ASAP.
A number of interesting talks and demonstrations are planned including
a talk on the Lunar Amateur Radio Transponder project (LUNART).
A draft schedule of the day's events may be downloaded from:
https://bit.ly/35ZsOCg
Please register online at http://tinyurl.com/amsatukreg2020
[ANS thanks Trevor Essex, M5AKA & AMSAT-UK for the above information]
---------------------------------------------------------------------
AMSAT-DL Symposium Announcement:
AMSAT-DL have announced this year's Symposium on Saturday, September 26,
will be streamed live on YouTube and most of the lectures will be in
English to cater for an international audience.
Mattias, DD1US reports: "Instead, we will broadcast the symposium as an
"online" meeting in DATV via the broadband transponder of QO-100 and on
the Internet on the YouTube channel of AMSAT-DL at:
https://www.youtube.com/user/amsatdl
Announced sessions will include presentations on Lunar Amateur Radio
Transponder project (LUNART) and several sessions focused on QO-100
usage and modes of operation.
The current schedule can be found on the AMSAT-DL homepage at:
https://amsat-dl.org/en/
[ANS thanks Matthias Bopp, DD1US & AMSAT-DL for the above information]
+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
Need new satellite antennas? Purchase Arrows, Alaskan Arrows,
and M2 LEO-Packs from the AMSAT Store. When you purchase through
AMSAT, a portion of the proceeds goes towards
Keeping Amateur Radio in Space.
https://amsat.org/product-category/hardware/
+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
New User guide for ARRL LOTW:
A guide for beginner LOTW users has been released by Gary, ZL2IFB. Gary
pulled together a team of contributors who assisted him on the project.
The 33 page guide was written with the new user in mind, but contains
many tips and explanations that veteran users will find useful as well.
The guide may be downloaeded from:
https://www.g4ifb.com/LoTW_New_User_Guide.pdf
[ANS thanks Gary, ZL4IFB for the above information]
---------------------------------------------------------------------
AMSAT Field Day Results for 2020 have been posted:
Bruce Paige, KK5DO has posted the AMSAT Field Day 2020 results on the
AMSAT web site. A direct link to the results page is:
https://www.amsat.org/field-day-2020-results/
Alternatively, it is possible to navigate to the page by clicking on
Events, Field Day and Field Day 2020 Results.
[ANS thanks Bruce Paige, KK5DO AMSAT Director Contests & Awards and
AMSAT Board Member for the above information]
+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
Want to fly the colors on your own grid expedition?
Get your AMSAT car flag and other neat stuff
from our Zazzle store!
25% of the purchase price of each product goes
towards Keeping Amateur Radio in Space
https://www.zazzle.com/amsat_gear
+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
ARISS NEWS
Amateurs and others around the world may listen in on contacts between
amateurs operating in schools and allowing students to interact with
astronauts and cosmonauts aboard the International Space Station. The
downlink frequency on which to listen is 145.800 MHz worldwide.
ARISS NEWS
Amateurs and others around the world may listen in on contacts between
amateurs operating in schools and allowing students to interact with
astronauts and cosmonauts aboard the International Space Station. The
downlink frequency on which to listen is 145.800 MHz worldwide.
Upcoming ARISS Contact Schedule as of 2020-09-21 19:30 UTC
Quick list of scheduled contacts and events:
Turkish State Meteorological Service
Mehmet Zakir Ekni High School, Yenimahalle, Turkey
Kuyuba?i ?ehit O?uzhan Duyar Secondary School, Ke?i?ren, Turkey
Ted Ankara College Foundation High School, G?lba??, Turkey
Maya Anatolian High School, G?lba??, Turkey
Direct via TC2TSC
The ISS callsign is presently scheduled to be OR4ISS
The scheduled astronaut is Chris Cassidy KF5KDR
Contact is go for: Tue 2020-09-29 12:35:08 UTC 78 deg (***)
There is a new radio on board the ISS. The Kenwood D710GA is now in use.
The crossband repeater is now available when the radio is not being used
for ARISS school contacts.
The frequencies are 145.99 MHz up (67 tone) and 437.800 MHz down. Watch
the Doppler on the downlink.
*************************************************
ARISS is very aware of the impact that COVID-19 is having on schools and
the public in general. As such, we may have last minute cancellations
or postponements of school contacts. As always, I will try to provide
everyone with near-real-time updates.
Postponed:
No new schools have been postponed or cancelled due to COVID-19:
The ARISS webpage is at https://www.ariss.org/
Watch for future COVID-19 related announcements here also.
[ANS thanks Charlie Sufana, AJ9N, one of the ARISS operation team men-
tors for the above information]
ARISS Europe announcement: Possible SSTV Events
Slow Scan TV (SSTV) transmissions will probably occur from the Internat-
ional Space Station (ISS) next week. Possible times: Wed 2020-09-30
13:05 UTC to 18:45 UTC Thu 2020-10-01 12:30 UTC to 17:40 UTC
Images will be downlinked at 145.8 MHz and the expected SSTV mode of
operation is PD 120. Radio enthusiasts participating in the event can
post and view images on the ARISS SSTV Gallery at:
https://www.spaceflightsoftware.com/ARISS_SSTV/
[ANS thanks Gaston Bertels, ON4WF of ARISS Europe for the above
information and JoAnn Maenpaa, K9JKM for the relay]
+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
AMSAT, along with our ARISS partners, is developing an amateur
radio package, including two-way communication capability, to
be carried on-board Gateway in lunar orbit.
Support AMSAT's projects today at https://www.amsat.org/donate/
+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
Upcoming Satellite Operations
Upcoming Roves:
Quick Hits:
FK67, NP3V, 9/26: Saturday 26 NP3V - Luis will be activating grid FK67
again. Activation will be on AO-91, SO-50 and IO-86 all FM.
DM35, DM36 and DM45: @????? 9/23 - 10/1 ish: I will be camping in DM35
and will operate from there occasionally over the next 8-10 days. I will
also activate DM36 at some point, probably early to middle of next week.
I will also be very near DM45, so Sats & SOTA may happen again!
EN10, @????? 9/25: K0JM possibly EN10 for one or two FM passes on Friday
morning, strictly holiday style, as circumstances permit.
CN76/77 10/3 and 10/4 @????? Just booked tickets for beautiful Ocean
Shores, WA. CN76/CN77 grid line Sat Oct 3 approx 0000z to Sun Oct 4th
approx 1700z, pass details closer to the trip
EL Grids, @????? 10/10 -10-14: 10/10 EL95 Key Largo, 10/11 EL94 Key
West, 10/12 EL84 Dry Tortuga, 10/13 EL94 Key West, 10/14 TBD
Major Roves:
Beginning this Saturday, 19 Sept thru Friday, 25 Sept, @???????????? and
@???? will be doing some holiday roving in several Iowa grids: EN11,
EN12, EN20, EN21, EN22 and EN30 - some lines. None of them are particul-
arly rare, but we'll be there nevertheless. Operation will be limited by
work commitments and family activities, but we will focus on AO-91 and
SO-50 and maybe some linears. Hope to turn a few grids green for some
folks. Please play nice, i.e. no blind calls, no stomping and allow the
QSOs to be completed!
**** Postponed ******* DL88: Ron (@?????? and Doug (@????? are making
another run at the elusive DL88 in Big Bend National Park, TX. As we
know they tried this grid back in March, and due to the mud couldn't get
to the grid, so never ones to quit, off they go again. Today the tent-
ative date is Monday July 6th, 2020. They will be using the K5Z call
sign. More information is available at the K5Z QRZ Page.
[ANS thanks Paul Overn, KE0PBR, AMSAT rover page manager, for the
above information]
---------------------------------------------------------------------
Hamfests, Conventions, Maker Faires, and Other Events
Clint Bradford, K6LCS will give his "Work the FM Voice Satellites With
Minimal Equipment" Zoom presentation on the following dates for:
10/27/2020 - Cherryland ARC / Traverse Bay ARC
Additional presentations are in the planning stage:
TBD - Antelope Valley (CA) ARC and a private presentation for a
Boy Scout troop in Danville, Pennsylvania
Club Groups are asked to update their copies of the Zoom application
prior to the scheduled session by directly downloading it from
https://zoom.us/
[ANS thanks Clint Bradford, K6CLS for the above information]
RSGB 2020 Convention - antenna modelling and ionoscatter
During the online RSGB 2020 Convention, you will be able to enjoy some
excellent lectures. On Saturday, 10 October 2020, the RSGB will be
presenting two online streams for everyone to enjoy.
Highlights will be "Antenna Modelling With MMANA-GAL with Steve Nichols,
G0KYA and Palle, OZ1RH will look at Ionoscatter on 50 and 144MHz.
Information is available at https://rsgb.org.uk/convention.
[ANS thanks the RSGB GB2RS News for the above information]
AMSAT-DL has been live streaming this year's AMSAT-DL Symposium. Details
on the Internet on the YouTube channel of AMSAT-DL at:
https://www.youtube.com/user/amsatdl
Editor's Note: we are not aware if the YouTube presentations will be
available after the Symposium.
[ANS thanks Matthias Bopp, DD1US & AMSAT-DL for the above information]
---------------------------------------------------------------------
Satellite Shorts From All Over
+ NASA officials released a nearly five-year, $28 billion plan Monday
to return astronauts to the surface of the moon before the end of
2024, but the agency's administrator said the "aggressive" timeline
set by the Trump administration last year hinges on Congress approv-
ing $3.2 billion in the next few months to kick-start development of
new human-rated lunar landers. (ANS thanks Spaceflight Now for the
above information)
+ Astronauts on the International Space Station carried out an "avoid-
ance maneuver" on September 22 to ensure they would not be hit by a
piece of debris, said NASA, urging better management of objects in
Earth's orbit. Russian and US flight controllers worked together dur-
ing a two-and-a-half-minute operation to adjust the station's orbit
and move further away, avoiding collision. [Such maneuvers usually
mean that Keps for ISS must be updated -- Ed.] (ANS thanks Space
Daily for the above information)
+ A solid-fueled Long March 11 launcher delivered nine small Chinese
Earth observation satellites to orbit on September 15 after firing
off a ship positioned in the Yellow Sea. Unfortunately, the payload
did NOT include the CAS-7 satellites amateurs have been anticipating.
That launch is still pending. (ANS thanks Spaceflight Now for the
above information)
+ Sept. 22 Spaceflight Now published an updated general launch schedule:
Updating time for Delta 4-Heavy/NROL-44; Adding date and time for
Falcon 9/Starlink 12; Electron/STP-27RM delayed; Falcon 9/GPS
3 SV04 moved forward; Adding date for Falcon 9/SpaceX CRS 21; Adding
date for Falcon 9/Turksat 5A; Adding date for Falcon 9/Transporter 1;
Atlas 5/CST-100 Starliner Orbital Flight Test 2 delayed. Details at:
https://spaceflightnow.com/launch-schedule/ (ANS thanks Spaceflight
Now for the above information)
+ Sept. 24 Blue Origin scrubbed a test of NASA landing system hardware
on the latest New Shepard flight Additional Additional information may
be found at: https://bit.ly/3hYWSQX (ANS thanks NASA's spaceflight.com
for the above information)
---------------------------------------------------------------------
In addition to regular membership, AMSAT offers membership in the
President's Club. Members of the President's Club, as sustaining
donors to AMSAT Project Funds, will be eligible to receive addi-
tional benefits. Application forms are available from the AMSAT
Office.
Primary and secondary school students are eligible for membership
at one-half the standard yearly rate. Post-secondary school students
enrolled in at least half time status shall be eligible for the stu-
dent rate for a maximum of 6 post-secondary years in this status.
Contact Martha at the AMSAT Office for additional student membership
information.
73 and Remember to help keep amateur radio in space,
This week's ANS Editor, Jack Spitznagel, KD4IZ
kd4iz at amsat dot org
------------------------------
Message: 4
Date: Sat, 26 Sep 2020 18:01:43 -0700 (PDT)
From: 73 Bob W7LRD <w7lrd@???????.???>
To: Gerald Payton <gp_ab5r@???????.???>, Gerald Payton via AMSAT-BB
<amsat-bb@?????.???>
Subject: Re: [amsat-bb] Sources for LMR400UF
Message-ID: <1368246626.68818.1601168503416@???????.???????.???>
Content-Type: text/plain; charset=UTF-8
cable experts
> On 09/26/2020 1:55 PM Gerald Payton via AMSAT-BB <amsat-bb@?????.???> wrote:
>
>
> I may be opening Pandora's Box, but I would like to ask the BB for their
best source(s) for LMR400UF cable. I will need two cables (N to N and PL259
to PL259) approx. 75 ft. long.
> Thanks for help.
>
> 73,
> Jerry AB5R
> _______________________________________________
> Sent via AMSAT-BB@?????.???. 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: Sat, 26 Sep 2020 23:47:12 -0700
From: Curt Laumann <curt.laumann@?????.???>
To: AMSAT-BB@?????.???
Subject: [amsat-bb] Are you interested in a 70 cm ParaLindy kit?
Message-ID:
<CAD7_4hx76bqXED8PGG2MZzYzO4Va9eD08E=RAqwCV71kz4Myrg@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Hi All,
Learning about a well-established parametric Lindenblad design, adding on
to it a bit, along with manufacturing and building (and using!) this version
of a Lindenblad antenna was really a joy over the last couple months. I
believe other satellite enthusiasts might enjoy building it too, but
possibly the 3D printing is not a keen interest.
Not to make any profit but really just to share, I'm considering offering a
kit as described below. Assembling this kit would result in four
parametric elements that bolt onto the aluminum dipole described in the
AMSAT article by AA2TX. (article available in a Google share folder; see
link below)
The proposed cost of the kit would be $42.53, shipped via USPS to CONUS. A
list of kit contents and costs is shown below.
If you're interested in this kit, please drop me a note to k7zoo@????.???
If there is sufficient interest, I'll put together a limited number of
kits and ship them out. (It's not my intent to go into the antenna
business, but just to share a bit!)
As an alternate approach: please note there are commercial 3D printing
services from which you can order 3D parts.
Regards,
Curt / K7ZOO
*LINK TO DOCUMENTATION ABOUT THE ANTENNA*
https://drive.google.com/drive/folders/15BXhG_1jJZcUSbdn8j4leHhwdGFLSOZq?usp=s
haring
*DETAILS OF PARTS IN THE KIT*
K7ZOO 3D Printed ParaLindy Support
PETG printed support structure for parasitic elements in AA2TX Lindenblad
antenna.
Price is driven by cost of material & printer maintenance.
Bulk material cost for 1 kilogram of PETG is approx. $25.
The piece is 132 grams.
Cost of material in this part: $3.30.
Estimate a little more to support printer maintenance.
$7.50
Arrow Shafts
Size 2219, length 11.75
$3.62 each, $14.48 for a set of four.
$14.48
Rubber End Caps
McMaster PN 9753K16.
10 each (8 needed + 2 spares)
$1.50
Modeling Clay
25 grams of clay.
Used to hold arrows and seal against resin leaking during bonding
operation.
$1.00
Packing Material
Bubble wrap and/or packing peanuts.
$3.00
Shipping USPS large flat-rate box
$15.05
TOTAL $42.53
------------------------------
Message: 6
Date: Sun, 27 Sep 2020 13:00:24 +0000
From: Gerald Payton <gp_ab5r@???????.???>
To: "amsat-BB@?????.???? <amsat-BB@?????.???>
Subject: [amsat-bb] Coax Sources
Message-ID:
<SN6PR11MB2752980D88331E6F59692BF8D0340@?????????????.????????.????.???????.??
?>
Content-Type: text/plain; charset="iso-8859-1"
MANY THANKS to all that responded to my coax question.
Now, does anyone know where I can find a MONEY TREE?
73,
Jerry AB5R
------------------------------
Message: 7
Date: Sun, 27 Sep 2020 09:08:52 -0400
From: Burns Fisher <wb1fj-bb@??????.??>
Cc: Gerald Payton via AMSAT-BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Sources for LMR400UF
Message-ID:
<CABX7KxX6FWXTkh=5=YR-1qDj83sV5w6kWAp211JKV4VRjgQAWA@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
No reason not to ask, although you might well get a lot of answers :-)
I have gotten cable from Shireen and found it to be fine, although if it
matters to you, you should be aware that it is not actually Times Microwave
cable. While it is their own brand, the specs are the same. I have also
gotten cable from MPD Digital, website usacoax.com, who does sell
custom-length and custom-connector Time-Microwave cable of all sizes. Last
time I looked, the prices were not hugely different; both have been
reasonably fast to fulfill, and cables from both seem to be of good
quality; some of Shireen's are still in use after having been outside (in a
PVC pipe) for 7 years or so.
MPD does sell some pre-made cables through Amazon FWIW.
73,
Burns WB1FJ
On Sat, Sep 26, 2020 at 11:47 PM 73 Bob W7LRD via AMSAT-BB <
amsat-bb@?????.???> wrote:
> cable experts
> > On 09/26/2020 1:55 PM Gerald Payton via AMSAT-BB <amsat-bb@?????.???>
> wrote:
> >
> >
> > I may be opening Pandora's Box, but I would like to ask the BB for their
> best source(s) for LMR400UF cable. I will need two cables (N to N and
> PL259 to PL259) approx. 75 ft. long.
> > Thanks for help.
> >
> > 73,
> > Jerry AB5R
> > _______________________________________________
> > Sent via AMSAT-BB@?????.???. 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-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: 8
Date: Sun, 27 Sep 2020 08:19:22 -0400
From: Don KB2YSI <kb2ysi@?????.???>
To: Gerald Payton <gp_ab5r@???????.???>
Cc: amsat-BB@?????.???
Subject: Re: [amsat-bb] Sources for LMR400UF
Message-ID:
<CAAJiE8P460Tsj2js1NTKmYEFfsshfiBWZQdRp9m2CsYdYiwpzw@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
I bought LMR240UF jumpers from h
abrind.com when I started working satellites, and they are still in working
order. It appears they have LMR400UF as well.
On Sat, Sep 26, 2020, 17:04 Gerald Payton via AMSAT-BB <amsat-bb@?????.???>
wrote:
> I may be opening Pandora's Box, but I would like to ask the BB for their
> best source(s) for LMR400UF cable. I will need two cables (N to N and
> PL259 to PL259) approx. 75 ft. long.
> Thanks for help.
>
> 73,
> Jerry AB5R
> _______________________________________________
> Sent via AMSAT-BB@?????.???. 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-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 390
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