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CX2SA > SATDIG 19.07.18 17:22l 907 Lines 29756 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. Electronic voting (was Re: 2018 Corrected AMSAT Board of
Directors Ballots) (Brennan Price)
2. Upcoming ARISS Contact Schedule as of 2018-07-19 01:00 UTC
(aj9n@???.????
3. Re: Electronic voting (was Re: 2018 Corrected AMSAT Board of
Directors Ballots) (Glen Zook)
4. Surprise - The AMSAT-NA TLE's Are Early This Week (Ray Hoad)
5. Re: 67 Hz filter (Samudra Haque [TTLLC])
6. Cables loss (Roger Titmuss)
7. Re: Cables loss (Bob)
8. Re: 67 Hz filter (Mike Diehl)
9. Re: 67 Hz filter (Stephen E. Belter)
10. Re: Cables loss (John Brier)
11. Re: Cables loss (Tom M0LTE)
----------------------------------------------------------------------
Message: 1
Date: Wed, 18 Jul 2018 22:23:36 +0000 (UTC)
From: Brennan Price <brennanprice@???????.???>
To: "amsat-bb@?????.???? <amsat-bb@?????.???>
Subject: [amsat-bb] Electronic voting (was Re: 2018 Corrected AMSAT
Board of Directors Ballots)
Message-ID: <1165037184.6838066.1531952617004@????.?????.???>
Content-Type: text/plain; charset=UTF-8
ARRLtried electronic balloting for Directors and Vice Directors for a
three-year cycle not long ago. Physical ballots were mailed only to those
members without email addresses on file. Members with emails on file got a
link to the contractor's (SBS) online voting site.
Voter participation in the few contested ARRL elections during that cycle
plummeted, and the cost was pretty much a wash (it costs money to do
electronic voting securely). The difficulty is that an email directing
voters to a voting site is easily lost in the noise compared to a paper
ballot received in the mail. This phenomenon is not uncommon; the same thing
happened when the Virginia State Bar implemented online voting around the
same time, with the same vendor.
ARRL abandoned electronic balloting. VSB has kept it, and has dealt with
declined participation. There are merits in both approaches, but the
argument that electronic balloting is better and cheaper is fallacious.
(Same thing applies to electronic publication as compared to paper--paper ad
rates command a premium for a very good reason.)
73 de Brennan N4QX
------------------------------
Message: 2
Date: Wed, 18 Jul 2018 20:29:33 -0400
From: aj9n@???.???
To: amsat-bb@?????.???
Subject: [amsat-bb] Upcoming ARISS Contact Schedule as of 2018-07-19
01:00 UTC
Message-ID: <164aff122d5-c91-1f374@?????????????.???.???????.???>
Content-Type: text/plain; charset=utf-8
Upcoming ARISS Contact Schedule as of 2018-07-19 01:00 UTC
Quick list of scheduled contacts and events:
7th International Aerospace School. I.N. Sultanova Rep. Bashkortostan, Ufa,
Russia, direct via TBD
The ISS callsign is presently scheduled to be RS?ISS
The scheduled astronaut is Oleg Artemyev
Contact is a go for 2018-07-20 20:15 UTC
?
Shinoda Elementary School, Izumi City, Japan, direct via 8N3SD
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Ricky Arnold KE5DAU
Contact is a go for: Mon 2018-07-23 09:47:14 UTC 43 deg
?
ISS R&D Conference-San Francisco, CA, (CASIS#2), participating school Quest
Institute for Quality Education, San Jose, CA, telebridge via VK5ZAI
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Serena Aunon-Chancellor KG5TMT
Contract is a go for: Thu 2018-07-26 20:22:10 UTC 48 deg
?
******************************************************************************
ARISS is always glad to receive listener reports for the above contacts.?
ARISS thanks everyone in advance for their assistance.? Feel free to send
your reports to aj9n@?????.??? or aj9n@???.???.
?
Listen for the ISS on the downlink of 145.8? MHz.
?
******************************************************************************
*
?
All ARISS contacts are made via the Kenwood radio unless otherwise noted.
?
******************************************************************************
*
Several?of you have sent me emails asking about the RAC ARISS website and
not being able?to get in.? That has now been changed to?
http://www.ariss.org/
Note that there are links to other ARISS websites from this?site.
****************************************************************************
Looking?for something new to do?? How about receiving DATV from the ISS???
If interested, then please go to the ARISS-EU website for complete?
details.? Look for the buttons indicating Ham?Video.? ? ? ? ? ? ? ? ? ? ? ?
? ?
? ? ? ? ? ? ? ? ? ? ?
http://www.ariss-eu.org/? ?
?
If you need some assistance, ARISS mentor Kerry N6IZW, might be able to
provide some insight.? Contact Kerry at kbanke@?????????.???
****************************************************************************
ARISS congratulations the following mentors who have now mentored over 100
schools:?
Francesco IK?WGF with 132
Satoshi 7M3TJZ with 129
Gaston ON4WF with 123
Sergey RV3DR with 103
****************************************************************************
The?webpages listed below were all reviewed for accuracy.? Out of date
webpages?were removed and new ones have been added.? If there are additional
ARISS?websites I need to know about, please let me know.
Note, all times?are approximate.? It is recommended that you do your own
orbital prediction?or start listening about 10 minutes before the listed
time.
All dates and?times listed follow International Standard ISO 8601 date and
time format? YYYY-MM-DD HH:MM:SS
The complete schedule page has been updated as of?2018-07-19 01:00 UTC.? (***)
Here you will find a listing of all scheduled?school contacts, and
questions, other ISS related websites, IRLP and?Echolink websites, and
instructions for any contact that may be streamed?live.??
http://www.amsat.org/amsat/ariss/news/arissnews.rtf
http://www.amsat.org/amsat/ariss/news/arissnews.txt
Total number?of ARISS ISS to earth school events is 1238.
Each school counts as 1?event.
Total number of ARISS ISS to earth school contacts is 1186.
Each contact may have multiple schools sharing the same time slot.
Total number of ARISS supported terrestrial contacts is?47.
A complete year by year breakdown of the contacts may be found in the
file.
http://www.amsat.org/amsat/ariss/news/arissnews.rtf
Please?feel free to contact me if more detailed statistics are needed.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
The?following US states and entities have never had an ARISS contact:
Delaware, South Dakota, Wyoming, American?Samoa, Guam, Northern Marianas
Islands, and the Virgin Islands.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
QSL?information may be found at:??
http://www.ariss.org/qsl-cards.html?
ISS callsigns:? DP?ISS, IR?ISS, NA1SS, OR4ISS,?RS?ISS
****************************************************************************
The successful school list has been updated as of 2018-07-17 18:00 UTC.
http://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf
Frequency? chart for packet, voice, and crossband repeater modes showing
Doppler? correction? as of 2005-07-29 04:00 UTC
http://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correction
.rtf
Listing?of ARISS related magazine articles as of 2006-07-10 03:30 UTC.
http://www.amsat.org/amsat/ariss/news/ARISS_magazine_articles.rtf
Check out the Zoho reports of the ARISS?contacts
https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415
****************************************************************************
Exp. 55 on orbit
Drew Feustel
Oleg Artemyev
Ricky Arnold KE5DAU
?
Exp. 56 on orbit
Serena Aunon-Chancellor KG5TMT
Alexander Gerst KF5ONO
Sergei Propopev
****************************************************************************
73,
Charlie?Sufana AJ9N
One of the ARISS operation team mentors
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
------------------------------
Message: 3
Date: Thu, 19 Jul 2018 00:53:48 +0000 (UTC)
From: Glen Zook <gzook@?????.???>
To: Brennan Price <brennanprice@???????.???>, "amsat-bb@?????.????
<amsat-bb@?????.???>
Subject: Re: [amsat-bb] Electronic voting (was Re: 2018 Corrected
AMSAT Board of Directors Ballots)
Message-ID: <1842238846.6885489.1531961628812@????.?????.???>
Content-Type: text/plain; charset=UTF-8
I generally disagree with most of this!? Yes, announcing the election using
E-Mail can definitely be problematic.? However, since "hard copy"
newsletters are sent out to every AMSAT member, a large announcement, on the
front cover, giving the instructions on how to vote either by Internet or by
mail, is an effective way to get things going.
Not mailing out the ballots definitely saves money in both postage and
printing costs.? There is no additional mailing cost since the instructions
will be on the front of the newsletter.
There could even be a paper ballot on the back cover that could either be
torn off or copied for those wishing to use the paper ballot method.? The
ballot could then be put in an envelope that is marked just "Ballot" and the
serial number and then be put in another envelope for mailing.? This is how
mail-in ballots are handled here in Texas.? That method works very well for
the main-in ballots for every election.
Since most of the functions of AMSAT are handled by volunteers, I am certain
that there are members who can definitely come up with a viable, secure,
program that will allow Internet voting.
As for E-Mail distributed newsletters:? They are definitely much less
expensive than hard copy newsletters not only in the printing and mailing
arena, but they are also easier to prepare.? Over the decades, I have been
the editor and / or publisher of a number of such publications ranging from
local groups to national groups.? It is MUCH cheaper, and MUCH easier to do
a newsletter that is distributed in PDF format than it is to publish a hard
copy newsletter.
I do prefer having a hard copy for a number of reasons.? However, unless the
organization is flush with cash, distributing the newsletter via E-Mail is
MUCH more a financial benefit to that organization.
?Glen, K9STH?
AMSAT 239 / LM 0463
Website: http://k9sth.net
From: Brennan Price <brennanprice@???????.???>
To: "amsat-bb@?????.???? <amsat-bb@?????.???>
Sent: Wednesday, July 18, 2018 5:44 PM
Subject: [amsat-bb] Electronic voting (was Re: 2018 Corrected AMSAT Board
of Directors Ballots)
ARRLtried electronic balloting for Directors and Vice Directors for a
three-year cycle not long ago. Physical ballots were mailed only to those
members without email addresses on file. Members with emails on file got a
link to the contractor's (SBS) online voting site.
Voter participation in the few contested ARRL elections during that cycle
plummeted, and the cost was pretty much a wash (it costs money to do
electronic voting securely). The difficulty is that an email directing
voters to a voting site is easily lost in the noise compared to a paper
ballot received in the mail. This phenomenon is not uncommon; the same thing
happened when the Virginia State Bar implemented online voting around the
same time, with the same vendor.
ARRL abandoned electronic balloting. VSB has kept it, and has dealt with
declined participation. There are merits in both approaches, but the
argument that electronic balloting is better and cheaper is fallacious.
(Same thing applies to electronic publication as compared to paper--paper ad
rates command a premium for a very good reason.)
73 de Brennan N4QX
------------------------------
Message: 4
Date: Wed, 18 Jul 2018 22:16:16 -0500
From: "Ray Hoad" <ray.hoad@????????.???>
To: <amsat-bb@?????.???>
Subject: [amsat-bb] Surprise - The AMSAT-NA TLE's Are Early This Week
Message-ID: <002101d41f0e$db69bc50$923d34f0$@????????.???>
Content-Type: text/plain; charset="us-ascii"
Surprise - The AMSAT-NA TLE's are one day early this week (vacation).
Ray Hoad
WA5QGD
AMSAT-NA Orbital Elements Manager
------------------------------
Message: 5
Date: Thu, 19 Jul 2018 11:19:01 +0000
From: "Samudra Haque [TTLLC]" <sehaque@??????????.???>
To: Zach Metzinger <zmetzing@?????.???>, "amsat-bb@?????.????
<amsat-bb@?????.???>
Subject: Re: [amsat-bb] 67 Hz filter
Message-ID: <2e45716520b8460fa547d6a1d690bb58@??????????.???>
Content-Type: text/plain; charset="us-ascii"
I'm currently wondering if there is a guideline in general to select filter
components so that they are realistic / common part values and still get the
performance desired? The calculations might result in exact values for C, R,
and might not include accommodation for the C* and R* of the PCB traces, or
of the associated wiring - what are practical steps to allow for real world
filter construction.
Also - suddenly I am wondering if I shouldn't be looking for a vendor who
supplies/manufacturers pre-designed filter blocks for inclusion in my
projects. Mouser?
Samudra N3RDX.
-----Original Message-----
From: AMSAT-BB [mailto:amsat-bb-bounces@?????.???? On Behalf Of Zach Metzinger
Sent: Wednesday, July 18, 2018 2:55 PM
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] 67 Hz filter
On 07/18/18 13:43, Ashhar Farhan wrote:
> I am brewing a satellite receiver. The 67 Hz CTCSS tone is quite annoying.
> Is there anyway to easily filter it out?
How about a simple high-pass filter?
https://www.electronics-tutorials.ws/filter/filter_3.html
--- Zach
N0ZGO
_______________________________________________
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: http://www.amsat.org/mailman/listinfo/amsat-bb
The information contained in this communication is confidential, may be
privileged and is intended for the exclusive use of the above named
addressee(s). If you are not the intended recipient(s), you are expressly
prohibited from copying, distributing, disseminating, or in any other way
using any information contained within this communication. If you have
received this communication in error please contact the sender by telephone
or by response via mail. We have taken precautions to minimize the risk of
transmitting software viruses, but we advise you to carry out your own virus
checks on any attachment to this message. We cannot accept liability for any
loss or damage caused by software viruses.
------------------------------
Message: 6
Date: Thu, 19 Jul 2018 11:41:59 +0100
From: "Roger Titmuss" <OLDBIKER@???.???>
To: <amsat-bb@?????.???>
Subject: [amsat-bb] Cables loss
Message-ID: <000001d41f4d$1f47a980$5dd6fc80$@???>
Content-Type: text/plain; charset="us-ascii"
Hi as a newcomer to this part of the hobby I have a couple of questions.
1. When using the M2 egg beaters how important is it to install a masthead
preamplifier?
2. Again with egg beater will 30 watts be enough to get back to the bird?
I am using about 80 feet of RG213 to connect the antenna.
Many thanks
Roger G0AWY
73
------------------------------
Message: 7
Date: Thu, 19 Jul 2018 10:08:52 -0400
From: Bob <WB4SON@?????.???>
To: Roger Titmuss <OLDBIKER@???.???>
Cc: AMSAT-BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Cables loss
Message-ID:
<CAPonRZ-B+oQgwkjQcx9zKprtygVF6U0=yEjs31wxUM_kAJ6G-Q@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Hi Roger,
Well RG213 isn't your optimal choice of cable. For example it has a loss
that is about twice as high as similar sized LMR400, and that really has an
impact on 70 cm. At 80 feet you are losing well over half your TX power --
your 30 watts into the coax will turn into about 12 watts at the antenna.
At that distance LMR600 is probably worth it.
I've used a pair of M2 Eggbeaters since 1998, so they have been up 20 years
now. I do use a SSB Electronics mast-mounted preamp on each. My lengths
are 50 feet for 70 cm, and 75 feet for 2 meters. I run 50 watts.
Generally I have no problem making a few contacts each pass. Things work
well for about 1/3 of the pass, and fair for another 1/3 of the pass, and
not at all for 1/3 of the pass. In other words, you aren't going to be
working stations down at the horizon, but you will be working stations when
the satellite is closest to you and higher in the sky.
In my case I probably didn't need the mast mounted preamp as my cable loss
was fairly low. In your case you are losing around 4 dB in your coax (for
a mode VU bird). You can probably do without the preamp.
73, Bob, WB4SON
On Thu, Jul 19, 2018 at 6:41 AM, Roger Titmuss <OLDBIKER@???.???> wrote:
> Hi as a newcomer to this part of the hobby I have a couple of questions.
>
>
>
> 1. When using the M2 egg beaters how important is it to install a masthead
> preamplifier?
>
>
>
> 2. Again with egg beater will 30 watts be enough to get back to the bird?
>
>
>
> I am using about 80 feet of RG213 to connect the antenna.
>
>
>
>
>
> Many thanks
>
>
>
> Roger G0AWY
>
>
>
> 73
>
> _______________________________________________
> 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: http://www.amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 8
Date: Thu, 19 Jul 2018 10:11:09 -0400
From: Mike Diehl <diehl.mike.a@?????.???>
To: "Samudra Haque [TTLLC]" <sehaque@??????????.???>
Cc: "amsat-bb@?????.???? <amsat-bb@?????.???>
Subject: Re: [amsat-bb] 67 Hz filter
Message-ID: <ED740FB3-D26A-4731-83B0-4891ABB7B2E4@?????.???>
Content-Type: text/plain; charset=utf-8
It?s a simple high pass audio filter, don?t overthink it. Surely the
tolerance values of the components are going to far outweigh any
contributions to the circuit from PCB tracings.
73,
Mike Diehl
W8LID
> On Jul 19, 2018, at 07:19, Samudra Haque [TTLLC] <sehaque@??????????.???>
wrote:
>
> I'm currently wondering if there is a guideline in general to select
filter components so that they are realistic / common part values and still
get the performance desired? The calculations might result in exact values
for C, R, and might not include accommodation for the C* and R* of the PCB
traces, or of the associated wiring - what are practical steps to allow for
real world filter construction.
>
> Also - suddenly I am wondering if I shouldn't be looking for a vendor who
supplies/manufacturers pre-designed filter blocks for inclusion in my
projects. Mouser?
>
> Samudra N3RDX.
>
> -----Original Message-----
> From: AMSAT-BB [mailto:amsat-bb-bounces@?????.???? On Behalf Of Zach
Metzinger
> Sent: Wednesday, July 18, 2018 2:55 PM
> To: amsat-bb@?????.???
> Subject: Re: [amsat-bb] 67 Hz filter
>
>> On 07/18/18 13:43, Ashhar Farhan wrote:
>> I am brewing a satellite receiver. The 67 Hz CTCSS tone is quite annoying.
>> Is there anyway to easily filter it out?
>
> How about a simple high-pass filter?
>
> https://www.electronics-tutorials.ws/filter/filter_3.html
>
> --- Zach
> N0ZGO
> _______________________________________________
> 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: http://www.amsat.org/mailman/listinfo/amsat-bb
> The information contained in this communication is confidential, may be
privileged and is intended for the exclusive use of the above named
addressee(s). If you are not the intended recipient(s), you are expressly
prohibited from copying, distributing, disseminating, or in any other way
using any information contained within this communication. If you have
received this communication in error please contact the sender by telephone
or by response via mail. We have taken precautions to minimize the risk of
transmitting software viruses, but we advise you to carry out your own virus
checks on any attachment to this message. We cannot accept liability for any
loss or damage caused by software viruses.
> _______________________________________________
> 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: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 9
Date: Thu, 19 Jul 2018 14:52:58 +0000
From: "Stephen E. Belter" <seb@??????.???>
To: Mike Diehl <diehl.mike.a@?????.???>, "Samudra Haque [TTLLC]"
<sehaque@??????????.???>
Cc: "amsat-bb@?????.???? <amsat-bb@?????.???>
Subject: Re: [amsat-bb] 67 Hz filter
Message-ID: <C3E43F33-38E7-4ACD-88CA-647193FD421D@??????.???>
Content-Type: text/plain; charset="utf-8"
I agree with Mike, this is an audio filter so the RC from PCB traces and
other wiring should be ignored. Choose the capacitor(s) to match common
values, then select the resistors with 10% or 20% tolerance. You can find
common values by checking Mouser or DigiKey.
But I do need to ask a question before you build your filter: What
satellite are you listening to that transmits 67 Hz?
None of the SSB or FM amateur satellites *transmit* 67 Hz. The Fox
satellites (AO-85, AO-91, AO-92) transmit Data Under Voice (DUV) which can
be annoying depending on the frequency response of your receiver. DUV isn't
67 Hz, but a range of frequencies less than 300 Hertz. Most commercial FM
receivers filter out most, if not all of the DUV frequencies which are used
for CTCSS. Most SDR receivers allow you to adjust the filtering of the
audio so that you can remove the DUV.
If you're building an analog receiver, you'll want to be filtering
frequencies below 300 Hz, not 67 Hz.
73, Steve N9IP
--
Steve Belter, seb@??????.???
?On 7/19/18, 8:13 AM, "AMSAT-BB on behalf of Mike Diehl"
<amsat-bb-bounces@?????.??? on behalf of diehl.mike.a@?????.???> wrote:
It?s a simple high pass audio filter, don?t overthink it. Surely the
tolerance values of the components are going to far outweigh any
contributions to the circuit from PCB tracings.
73,
Mike Diehl
W8LID
> On Jul 19, 2018, at 07:19, Samudra Haque [TTLLC]
<sehaque@??????????.???> wrote:
>
> I'm currently wondering if there is a guideline in general to select
filter components so that they are realistic / common part values and still
get the performance desired? The calculations might result in exact values
for C, R, and might not include accommodation for the C* and R* of the PCB
traces, or of the associated wiring - what are practical steps to allow for
real world filter construction.
>
> Also - suddenly I am wondering if I shouldn't be looking for a vendor
who supplies/manufacturers pre-designed filter blocks for inclusion in my
projects. Mouser?
>
> Samudra N3RDX.
>
> -----Original Message-----
> From: AMSAT-BB [mailto:amsat-bb-bounces@?????.???? On Behalf Of Zach
Metzinger
> Sent: Wednesday, July 18, 2018 2:55 PM
> To: amsat-bb@?????.???
> Subject: Re: [amsat-bb] 67 Hz filter
>
>> On 07/18/18 13:43, Ashhar Farhan wrote:
>> I am brewing a satellite receiver. The 67 Hz CTCSS tone is quite
annoying.
>> Is there anyway to easily filter it out?
>
> How about a simple high-pass filter?
>
> https://www.electronics-tutorials.ws/filter/filter_3.html
>
> --- Zach
> N0ZGO
> _______________________________________________
> 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: http://www.amsat.org/mailman/listinfo/amsat-bb
> The information contained in this communication is confidential, may
be privileged and is intended for the exclusive use of the above named
addressee(s). If you are not the intended recipient(s), you are expressly
prohibited from copying, distributing, disseminating, or in any other way
using any information contained within this communication. If you have
received this communication in error please contact the sender by telephone
or by response via mail. We have taken precautions to minimize the risk of
transmitting software viruses, but we advise you to carry out your own virus
checks on any attachment to this message. We cannot accept liability for any
loss or damage caused by software viruses.
> _______________________________________________
> 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: http://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: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 10
Date: Thu, 19 Jul 2018 08:53:29 -0600
From: John Brier <johnbrier@?????.???>
To: Roger Titmuss <OLDBIKER@???.???>
Cc: AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Cables loss
Message-ID:
<CALn0fKO+aw0jpRLkKYrvnLAoM5+--AuZo=YhEKDuEwC6vOV5OA@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
You should read yesterday's thread on egg beaters on the qrz.com forums.
One response said that today's birds don't have strong enough downlinks to
work the birds well using egg beaters.
They will probably work for high elevation passes but they aren't
recommended today in general. Seems like good info to me.
Preamps seem like an important component to use with egg beaters. Most
folks using yagis use them too so they would be even more important with
egg beaters.
https://forums.qrz.com/index.php?threads/egg-beater-antenna-question.620911/
73, John Brier KG4AKV
On Thu, Jul 19, 2018, 07:17 Roger Titmuss <OLDBIKER@???.???> wrote:
> Hi as a newcomer to this part of the hobby I have a couple of questions.
>
>
>
> 1. When using the M2 egg beaters how important is it to install a masthead
> preamplifier?
>
>
>
> 2. Again with egg beater will 30 watts be enough to get back to the bird?
>
>
>
> I am using about 80 feet of RG213 to connect the antenna.
>
>
>
>
>
> Many thanks
>
>
>
> Roger G0AWY
>
>
>
> 73
>
> _______________________________________________
> 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: http://www.amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 11
Date: Thu, 19 Jul 2018 15:00:23 +0000
From: Tom M0LTE <tom@?????.??>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] Cables loss
Message-ID:
<01020164b30e6912-791b5ea3-0595-4824-b67e-41b8f9e84950-000000@?????????.??????
???.???>
Content-Type: text/plain; charset="utf-8"
Damn, those eggbeaters are expensive!
On 19 Jul 2018, 14:17 +0100, Roger Titmuss <OLDBIKER@???.???>, wrote:
> Hi as a newcomer to this part of the hobby I have a couple of questions.
>
>
>
> 1. When using the M2 egg beaters how important is it to install a masthead
> preamplifier?
>
>
>
> 2. Again with egg beater will 30 watts be enough to get back to the bird?
>
>
>
> I am using about 80 feet of RG213 to connect the antenna.
>
>
>
>
>
> Many thanks
>
>
>
> Roger G0AWY
>
>
>
> 73
>
> _______________________________________________
> 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: http://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!
http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
End of AMSAT-BB Digest, Vol 13, Issue 259
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