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CX2SA > SATDIG 04.05.19 01:13l 1008 Lines 38801 Bytes #999 (0) @ WW
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From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. Re: ARRL Antenna book, eggbeater antenna designs (Jeff Johns)
2. Re: ARRL Antenna book, eggbeater antenna designs (not)
(KE6BLR Robert)
3. Re: ARRL Antenna book, eggbeater antenna designs (not)
(jim@?????.????
4. Re: AO-92 2020z today (W3AB/GEO)
5. Re: ARRL Antenna book, eggbeater antenna designs (not)
(Sean Waite)
6. Re: ARRL Antenna book, eggbeater antenna designs (Devin L. Ganger)
7. Re: ARRL Antenna book, eggbeater antenna designs
(Bob Liddy (K8BL))
----------------------------------------------------------------------
Message: 1
Date: Fri, 3 May 2019 17:10:13 -0500
From: Jeff Johns <jeff30339@?????.???>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] ARRL Antenna book, eggbeater antenna designs
Message-ID: <15CA2EFA-C2B1-4B3F-9100-7BC18AB0008E@?????.???>
Content-Type: text/plain; charset=utf-8
I?ll second this post and state that a directional antenna, either Yagi or
LPDA will always work best for satellites.
Jeff WE4B
> On May 3, 2019, at 4:55 PM, David Swanson via AMSAT-BB
<amsat-bb@?????.???> wrote:
>
> OK Devin since you want to do this in public ---
>
> Yes, I'm one of the guys (AL6D is the other) you sent an out of thread
> reply to back on April 24th scolding us like a school marm for not just
> accepting people who are causing deliberate interference. You then
> proceeded to use a bunch of snowflake words like "ableism" at me and Gabe.
> I promptly told you to go to hell with your preaching, and I'll tell you
> again now in public.
>
> Back on topic, here's the low-down - if you're not actually making
> contacts, then you're not operating. You're SWLing. Any old joe with an SDR
> and a coat hanger can listen, and they might even hear something from time
> to time, that is a far cry from being a successful op. I'm not going to
> bother telling you about the success I've had on Satellites (you can figure
> that out yourself if you care too) but rest assured I do have a clue.
> Interestingly, you have made 36 replies to this list since 2016 (based on a
> quick search) and have no doubt seen countless thread about Omni's,
> tripods, and Eggbeaters. Yet you have never made a QSO, and still come in
> here offering incorrect advice to others, all the while playing the family
> oh so poor card, to explain why you would want to build a sub-par setup and
> cause deliberate interference on the current LEO fleet. You sir are a
> genuine troll of the highest order, I only replied in kind with my dummy
> load post suggestion.
>
> You can reply to this thread if you like - cause I'm just a guy and don't
> claim to have any power over other people's speech. I please do request
> though that you don't ever get on the birds, cause you're obviously
> incapable of the basic functions necessary to operate.
>
> 73!
>
> -Dave, KG5CCI
>
>> On Fri, May 3, 2019 at 4:10 PM Devin L. Ganger <devin@????????.???> wrote:
>>
>> Oh, that's right, you're the dude who's still butt-hurt because I called
>> people out about bullying new users who ask about tripods.
>>
>> You're the dude who assumed that since you never heard me TX that meant I
>> wasn't operating at all.
>>
>> You're the dude whose reading comprehension is lacking.
>>
>> And you seem to be the dude who thinks that if you know one aspect of
>> operating you know them all and can't ever admit ignorance.
>>
>> Please don't bother to respond to the thread any more -- I know I can't
>> trust any advice you might give, out of only the best of intentions,
>> because you make too many faulty assumptions.
>>
>> --
>> Devin L. Ganger (WA7DLG)
>> email: devin@????????.???
>> web: Devin on Earth
>> cell: +1 425.239.2575
>>
>>> -----Original Message-----
>>> From: AMSAT-BB <amsat-bb-bounces@?????.???> On Behalf Of David
>>> Swanson via AMSAT-BB
>>> Sent: Friday, May 3, 2019 1:58 PM
>>> To: Sean Waite <waisean@?????.???>
>>> Cc: AMSAT-BB@?????.???
>>> Subject: Re: [amsat-bb] ARRL Antenna book, eggbeater antenna designs
>>>
>>> Hi Sean!
>>>
>>> I don't recall seeing any name calling here until your post, I genuinely
>> want to
>>> make sure the author of this thread who has sent numerous emails to this
>> list
>>> explaining how to operate gets the best tips in regards to their planned
>> build.
>>> I'm actually in the process of building the setup I recommended and will
>> plan
>>> on doing a demo for folks sometime here soon, stay tuned!
>>>
>>> -Dave, KG5CCI
>>>
>>>> On Fri, May 3, 2019 at 3:51 PM Sean Waite <waisean@?????.???> wrote:
>>>>
>>>> Ah, yes, rather than maybe educate someone let's just berate them and
>>>> functionally call them an idiot.
>>>>
>>>> Eggbeaters have a bad rap because they don't necessarily hear well.
>>>> You may be making it into the bird but not hearing yourself, so you
>>>> keep tuning around and calling trying to find yourself only to be
>>>> deaf-ly QRMing other stations. I have no experience with them, but
>> that's
>>> what I've heard.
>>>>
>>>> 73,
>>>> Sean WA1TE
>>>>
>>>> On Fri, May 3, 2019 at 4:49 PM David Swanson via AMSAT-BB <
>>>> amsat-bb@?????.???> wrote:
>>>>
>>>>> Instead of building eggbeaters, pick up a few of these:
>>>>>
>>>>> http://www.mfjenterprises.com/Product.php?productid=MFJ-261
>>>>>
>>>>> You'll also need a pair of these:
>>>>>
>>>>> https://www.amazon.com/Coaxial-Cable-Female-SO239-
>>> PL259/dp/B00KQHH7VC
>>>>>
>>>>> Hook those into your baofengs and you'll be just as effective on the
>>>>> Satellites as you would with some homemade 'beaters.
>>>>>
>>>>> Good luck! 73!
>>>>>
>>>>> -Dave, KG5CCI
>>>>>
>>>>> On Fri, May 3, 2019 at 3:19 PM Devin L. Ganger via AMSAT-BB <
>>>>> amsat-bb@?????.???> wrote:
>>>>>
>>>>>> Greetings, programs!
>>>>>>
>>>>>> I'm looking to work with my son (who will be studying to get his
>>>>>> Technician license later this month) on building a UHF/VHF pair of
>>>>>> eggbeater antennas. I've found a few papers online, but does anyone
>>>>> have a
>>>>>> good reference to a detailed design?
>>>>>>
>>>>>> Does the ARRL Antenna book latest edition have any significant
>>>>>> coverage
>>>>> of
>>>>>> eggbeaters at all? I have an older version that has nothing.
>>>>>>
>>>>>> Also, most of the designs I see are for a single band. If you're
>>>>> deploying
>>>>>> a pair for satellite operations, do you simply attach them through
>>>>>> a duplexer? I have a Diamond MX-72N that I picked up a while ago
>>>>>> for using with dual Baofengs, but it's been sitting in my drawer
>>>>>> since I picked
>>>>> up my
>>>>>> TH-D72A. It has a 1.6~150MHz lead and a 350~460MHz lead.
>>>>>>
>>>>>> Thanks in advance for any pointers you might have.
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Devin L. Ganger (WA7DLG)
>>>>>> email: devin@????????.???<????????????@????????.???>
>>>>>> web: Devin on Earth<http://www.devinonearth.com/>
>>>>>> cell: +1 425.239.2575
>>>>>>
>>>>>> _______________________________________________
>>>>>> 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
>>>>>
>>>>
>>> _______________________________________________
>>> 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: 2
Date: Fri, 3 May 2019 15:24:01 -0700
From: KE6BLR Robert <ke6blr.robert@?????.???>
To: AMSAT-BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] ARRL Antenna book, eggbeater antenna designs
(not)
Message-ID:
<CABaTVVacVMXc8KVA-51wbLDZLda_BMfxRBZ6MQhRVVG=gvGN7A@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Hello Space Communicators!
Here are some observations about Satellite APRS on 145.825 MHz.
1) Receiving is harder than Transmitting.
2) Location is critical, avoid hill tops or parking structures in a city.
As far as Satellite APRS on 145.825 MHz with an Eggbeater, here are some
reference points.
My Dad (N6DAN) operates the #1 iGate in the world based on packets received
on 145.825 MHz. So, I think that documented track record carries a great
deal of merit and credibility. Having said that, he operates two radios,
one connected to the EBB144 and another to a directional antenna.
Egg Beater success pivots on two factors:
1) Pre-amp: the EBB is dull and needs help.
2) Noise: the EBB is useless in the city on a high pole, but perfect in
rural areas on a high pole. In the city the EBB works best below a wood
fence line.
W0ARP operates the #8 iGate in the world based on packets received on
145.825 MHz. He is only running the EBB144 with a pre-amp in a rural area.
Eggbeaters can be useful.
73s
Robert MacHale
KE6BLR Ham Radio License
http://spaceCommunicator.club <http://spacecommunicator.club/>
Supporting Boy Scout Merit Badges in Radio and Space Exploration
On Fri, May 3, 2019 at 2:49 PM Robert Bruninga via AMSAT-BB <
amsat-bb@?????.???> wrote:
> Eggbeaters are ideal antennas for omnidirectional coverage with dual
> polarization for strong signals with minimum fades....
>
> But like any antenna, to get gain somewhere, you have to give up gain
> elsewhere. Here are all the issues and my opinions.
>
> 1) Satellites on the horizon are 10 dB farther away than ones above 22
> degrees (2000 miles vs 700 miles).
> 2) Splitting gain into circular polarization (Eggbeaters) loses 3 dB
> compared to incoming linear polarization
> 3) Small sats usually have linear antennas or, if they have cross
> polarization then even if they are RHCP when approaching, they may be LHCP
> going away, thus you still have a 50/50 chance of having a polarization
> mismatch, though having both polarizations will minimize most fades.
> 4) Most small Amateur sateliltes have less than 1W transmitters and simply
> cannot be heard on the horizon without several dB gain.
>
> My Conslusions are:
> 1) An Egg beater is ideal for STRONG satellites (Think ISS with 10 Watts).
> It will minimize fades horizon to horizon.
> 2) But there are NO, NONE, NADA current amateur satellites (not even the
> ISS right now) at that power level.
> 4) Hence an eggbeater even with a dB or so gain on the horizon simply is
> not going to hear anything until the satellite gets above about 20 degrees
> (when it is 10 dB closer)
> 5) So, why even bother with an eggbeater.
> 6) Use a simple 19.5" quarter wave vertical over a ground plane (for 2m).
> It will have 5 dBi gain above about 15 degrees (several dB better than an
> eggbeater).
> 7) and it will ALSO WORK even better as a 7 dBi gain UHF antenna (3/4 wave
> vertical) above about 25 degrees up to 70 degrees (6 dB better than an
> Eggbeater)...
>
> AND it is DUAL band as well! (on the same coax!)
>
> BUT, what about the donut hole overhead for these vertical antennas?
>
> Forgetaboutit.!.... The satellite is only above 70 degrees about 1% of
> the total pass times per day! And then for less than about 30 seconds!
>
> To visualize the orbit actual geometry see the scale plot on:
> http://aprs.org/LEO-tracking.html
>
> So, in my humble opinion, a 19.5" vertical whip antenna in the middle of a
> car roof (neat ground plane) will give pretty good satellite coverage. It
> will have some fades due to only one polarization, but the strong part of
> the cycle will be 3 dB stronger than it would be on a dual polarizatiaon
> antenna. And you don't have to be parked on a mountain. Since again, no
> omni antenna can hear these weak satellites on the horizon anyway, so as
> long as the trees are far enough away to give you sky above about 20
> degrees, you will have about the best coverage you can get for about a 20"
> of copper wire and a nice ground plane..
>
> In my opinion anyway.
>
> AND*** If you want to hear them all the way horizon to horizon, buy a $65
> TV rotator and attach a small 5 to 6 element beam tilted up at about 15
> degrees and hear them all! See above web page...
>
> Bob, Wb4APR
>
> -----Original Message-----
> From: AMSAT-BB <amsat-bb-bounces@?????.???> On Behalf Of Devin L. Ganger
> via AMSAT-BB
> Sent: Friday, May 3, 2019 4:19 PM
> To: AMSAT-BB@?????.???
> Subject: [amsat-bb] ARRL Antenna book, eggbeater antenna designs
>
> Greetings, programs!
>
> I'm looking to work with my son (who will be studying to get his
> Technician license later this month) on building a UHF/VHF pair of
> eggbeater antennas. I've found a few papers online, but does anyone have a
> good reference to a detailed design?
>
> Does the ARRL Antenna book latest edition have any significant coverage of
> eggbeaters at all? I have an older version that has nothing.
>
> Also, most of the designs I see are for a single band. If you're deploying
> a pair for satellite operations, do you simply attach them through a
> duplexer? I have a Diamond MX-72N that I picked up a while ago for using
> with dual Baofengs, but it's been sitting in my drawer since I picked up
> my TH-D72A. It has a 1.6~150MHz lead and a 350~460MHz lead.
>
> Thanks in advance for any pointers you might have.
>
>
> --
> Devin L. Ganger (WA7DLG)
> email: devin@????????.???<????????????@????????.???>
> web: Devin on Earth<http://www.devinonearth.com/>
> cell: +1 425.239.2575
>
> _______________________________________________
> 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: 3
Date: Fri, 3 May 2019 15:25:56 -0700 (PDT)
From: "jim@?????.???? <jim@?????.???>
To: "AMSAT BB" <amsat-bb@?????.???>
Subject: Re: [amsat-bb] ARRL Antenna book, eggbeater antenna designs
(not)
Message-ID: <1556922356.732823011@????.?????????.???>
Content-Type: text/plain;charset=UTF-8
I know I'm late to this thread so I'll make it short.
Eggbeaters are a piece of junk. Don't waste your time.
OK, in defense of the Eggbeater - ALL omni antennas are going to be pretty
crappy at best for satellite operation. Some are better than others, but
any of them will be beat by even a small directional antenna. Personally I
opted to go the other way.
Home: http://members.dslextreme.com/users/k6ccc/Photo/Pics/S-band1.html
Mobile: http://members.dslextreme.com/users/k6ccc/Photo/Pics/MobileSat2.html
73
-----
Jim Walls - K6CCC
jim@?????.???
------------------------------
Message: 4
Date: Fri, 03 May 2019 15:28:11 -0700
From: W3AB/GEO <w3ab@?????.???>
To: Tucker McGuire <tucker@???????????.???>
Cc: AMSAT -BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] AO-92 2020z today
Message-ID: <a72d9dae-f3ac-434d-abdb-e149677d6057@?????.???>
Content-Type: text/plain; charset=UTF-8
Frankly, I don't care. Merely an observation.
I do chase grids, via the terrestrial weak signal route.
Then there is the common "I never hear you on the sats....." attack. Nice.
?___
Sent from my two way wrist watch
73 de W3AB/GEO?
On May 3, 2019, 14:06, at 14:06, Tucker McGuire <tucker@???????????.???>
wrote:
>"Back in my day...". Give me a break. Times are changing and the hobby
>is
>evolving. I've never even heard you on the sats, so obviously you're
>not
>chasing grids too hard anyway, so why do you even care?
>
>On Fri, May 3, 2019, 4:51 PM W3AB/GEO via AMSAT-BB <amsat-bb@?????.???>
>wrote:
>
>> Maybe we do it like used to, manually. Tune & listen. Worked for
>years.
>>
>> Instataneous gratification has become the norm and complaints are
>> increasing.
>>
>> ?___
>> Sent from my two way wrist watch
>> 73 de W3AB/GEO?
>>
>> On May 3, 2019, 10:52, at 10:52, AI9IN via AMSAT-BB
><amsat-bb@?????.???>
>> wrote:
>> >Not everyone does pagers.
>> >
>> >Steve AI9IN
>> >
>> >On 2019-05-03 1:43 pm, Mike Diehl wrote:
>> >
>> >> Maybe we can get a list of pager numbers for those who choose not
>to
>> >use technology to be more successful on the birds.
>> >>
>> >> 73,
>> >> Mike Diehl
>> >> W8LID/VE6LID
>> >>
>> >> On May 2, 2019, at 19:58, AI9IN via AMSAT-BB <amsat-bb@?????.???>
>> >wrote:
>> >>
>> >> Nevertheless, "Not everyone does Twitter" is true.
>> >>
>> >> Steve AI9IN
>> >>
>> >> On 2019-05-02 6:33 pm, JoAnne K9JKM via AMSAT-BB wrote:
>> >>
>> >> Not everyone does Twitter.
>> >> AMSAT-NA Twitter has ~14,000 followers
>> >> AMSAT-NA Facebook has 2777 members and 4902 likes
>> >> AMSAT-BB has 2367 members
>> >>
>> >> This is just the stats for AMSAT-NA. All of the international
>AMSAT
>> >groups
>> >> have their own presence on Facebook and Twitter.
>> >>
>> >> --
>> >> 73 de JoAnne K9JKM
>> >> k9jkm@?????.???
>> >>
>> >> 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
>> >_______________________________________________
>> >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: 5
Date: Fri, 3 May 2019 18:33:55 -0400
From: Sean Waite <waisean@?????.???>
To: jim@?????.???
Cc: AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] ARRL Antenna book, eggbeater antenna designs
(not)
Message-ID:
<CAGz_XJwSQGMsiPXLqvZAtCGn0HRuCPN6qUrLEhqgLeA-a257Cw@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
It doesn't really matter how much beef you have with someone who posts a
message, or how often that question has been asked. It is on every case
better to either post a meaningful response or stay silent. You have to
remember that you're not just responding to the initial email, but to the
whole list and anyone who reads the archives. I talk daily with high school
and college kids who are hams and this behavior really drives them away.
Remember that your response about dummy loads, or anything similar is also
maybe a response to a 13 year old kid trying to make his or her first
antenna to work the satellites with whatever they find in their parent's
basement. Better to just stay quiet.
73,
Sean WA1TE
On Fri, May 3, 2019, 18:28 jim--- via AMSAT-BB <amsat-bb@?????.???> wrote:
> I know I'm late to this thread so I'll make it short.
>
> Eggbeaters are a piece of junk. Don't waste your time.
>
> OK, in defense of the Eggbeater - ALL omni antennas are going to be pretty
> crappy at best for satellite operation. Some are better than others, but
> any of them will be beat by even a small directional antenna. Personally I
> opted to go the other way.
> Home: http://members.dslextreme.com/users/k6ccc/Photo/Pics/S-band1.html
> Mobile:
> http://members.dslextreme.com/users/k6ccc/Photo/Pics/MobileSat2.html
>
> 73
> -----
> Jim Walls - K6CCC
> jim@?????.???
>
>
> _______________________________________________
> 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: 6
Date: Fri, 3 May 2019 22:44:16 +0000
From: "Devin L. Ganger" <devin@????????.???>
To: David Swanson <dave@?????????????.???>
Cc: AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] ARRL Antenna book, eggbeater antenna designs
Message-ID:
<DM5PR01MB2507D8AF12FDBCE6F45C6F5ECA350@?????????????.????.????????????.???>
Content-Type: text/plain; charset="utf-8"
In all seriousness, how do you get that I?m promoting ?accepting people who
are causing deliberate interference?? Notice that I?ve taken very seriously
every single operator on this list who replied to my query today with
details about how eggbeaters? reception characteristics make them more
likely for operators to not hear themselves at low elevations. As a result,
if I do end up making an eggbeater, it will be a receive-only antenna as a
learning experience for me and my son.
I see pictures all over various AMSAT-affiliated forums of people who have
their Alaskas on counter-weighted tripods, or people who have home-made
antennas on tripods, who are actively using the sats. When I first joined
this list and started asking about tripods, all of the advice I received was
basically ?that?s more weight? and ?you just have to learn how to point it
manually? and bunch of variations on those themes. Nobody said ?tripods
cause interference? or ?the only people who use tripods are trying to cause
interference.?
What is mechanically and electrically different (other than the motors) from
an antenna on a tripod vs. an antenna on a rotator (SatNogs, Arduino-based
SatTracker, etc.)? How does the former cause more interference than the
latter? There?s nothing in the literature that I can find that addresses
that topic and I really DO want to DTRT.
I?m clearly missing something here, because I?ve not seen any explanation of
how using a tripod *causes increased interference*. Not once since I signed
on. You?re the only person I?ve seen make that correlation. You clearly know
something the rest of us don?t. *Please share it so the rest of us can learn.*
If you?d take the time to explain instead of just throwing the baby out with
the bathwater, the community would benefit. You clearly have a lot of
experience and knowledge to offer.
Also, where in my ?36 replies to this list? have I offered incorrect advice?
If I?m wrong, I would like to know, so that 1) I learn to do better and 2)
I don?t repeat the same incorrect advice.
--
Devin L. Ganger (WA7DLG)
email: devin@????????.???<????????????@????????.???>
web: Devin on Earth<http://www.devinonearth.com/>
cell: +1 425.239.2575
From: David Swanson <dave@?????????????.???>
Sent: Friday, May 3, 2019 2:55 PM
To: Devin L. Ganger <devin@????????.???>
Cc: AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] ARRL Antenna book, eggbeater antenna designs
OK Devin since you want to do this in public ---
Yes, I'm one of the guys (AL6D is the other) you sent an out of thread reply
to back on April 24th scolding us like a school marm for not just accepting
people who are causing deliberate interference. You then proceeded to use a
bunch of snowflake words like "ableism" at me and Gabe. I promptly told you
to go to hell with your preaching, and I'll tell you again now in public.
Back on topic, here's the low-down - if you're not actually making contacts,
then you're not operating. You're SWLing. Any old joe with an SDR and a coat
hanger can listen, and they might even hear something from time to time,
that is a far cry from being a successful op. I'm not going to bother
telling you about the success I've had on Satellites (you can figure that
out yourself if you care too) but rest assured I do have a clue.
Interestingly, you have made 36 replies to this list since 2016 (based on a
quick search) and have no doubt seen countless thread about Omni's, tripods,
and Eggbeaters. Yet you have never made a QSO, and still come in here
offering incorrect advice to others, all the while playing the family oh so
poor card, to explain why you would want to build a sub-par setup and cause
deliberate interference on the current LEO fleet. You sir are a genuine
troll of the highest order, I only replied in kind with my dummy load post
suggestion.
You can reply to this thread if you like - cause I'm just a guy and don't
claim to have any power over other people's speech. I please do request
though that you don't ever get on the birds, cause you're obviously
incapable of the basic functions necessary to operate.
73!
-Dave, KG5CCI
On Fri, May 3, 2019 at 4:10 PM Devin L. Ganger
<devin@????????.???<????????????@????????.???>> wrote:
Oh, that's right, you're the dude who's still butt-hurt because I called
people out about bullying new users who ask about tripods.
You're the dude who assumed that since you never heard me TX that meant I
wasn't operating at all.
You're the dude whose reading comprehension is lacking.
And you seem to be the dude who thinks that if you know one aspect of
operating you know them all and can't ever admit ignorance.
Please don't bother to respond to the thread any more -- I know I can't
trust any advice you might give, out of only the best of intentions, because
you make too many faulty assumptions.
--
Devin L. Ganger (WA7DLG)
email: devin@????????.???<????????????@????????.???>
web: Devin on Earth
cell: +1 425.239.2575
> -----Original Message-----
> From: AMSAT-BB
<amsat-bb-bounces@?????.???<???????????????????????@?????.???>> On Behalf Of
David
> Swanson via AMSAT-BB
> Sent: Friday, May 3, 2019 1:58 PM
> To: Sean Waite <waisean@?????.???<??????????????@?????.???>>
> Cc: AMSAT-BB@?????.???<???????????????@?????.???>
> Subject: Re: [amsat-bb] ARRL Antenna book, eggbeater antenna designs
>
> Hi Sean!
>
> I don't recall seeing any name calling here until your post, I genuinely
want to
> make sure the author of this thread who has sent numerous emails to this
list
> explaining how to operate gets the best tips in regards to their planned
build.
> I'm actually in the process of building the setup I recommended and will
plan
> on doing a demo for folks sometime here soon, stay tuned!
>
> -Dave, KG5CCI
>
> On Fri, May 3, 2019 at 3:51 PM Sean Waite
<waisean@?????.???<??????????????@?????.???>> wrote:
>
> > Ah, yes, rather than maybe educate someone let's just berate them and
> > functionally call them an idiot.
> >
> > Eggbeaters have a bad rap because they don't necessarily hear well.
> > You may be making it into the bird but not hearing yourself, so you
> > keep tuning around and calling trying to find yourself only to be
> > deaf-ly QRMing other stations. I have no experience with them, but that's
> what I've heard.
> >
> > 73,
> > Sean WA1TE
> >
> > On Fri, May 3, 2019 at 4:49 PM David Swanson via AMSAT-BB <
> > amsat-bb@?????.???<???????????????@?????.???>> wrote:
> >
> >> Instead of building eggbeaters, pick up a few of these:
> >>
> >> http://www.mfjenterprises.com/Product.php?productid=MFJ-261
> >>
> >> You'll also need a pair of these:
> >>
> >> https://www.amazon.com/Coaxial-Cable-Female-SO239-
> PL259/dp/B00KQHH7VC
> >>
> >> Hook those into your baofengs and you'll be just as effective on the
> >> Satellites as you would with some homemade 'beaters.
> >>
> >> Good luck! 73!
> >>
> >> -Dave, KG5CCI
> >>
> >> On Fri, May 3, 2019 at 3:19 PM Devin L. Ganger via AMSAT-BB <
> >> amsat-bb@?????.???<???????????????@?????.???>> wrote:
> >>
> >> > Greetings, programs!
> >> >
> >> > I'm looking to work with my son (who will be studying to get his
> >> > Technician license later this month) on building a UHF/VHF pair of
> >> > eggbeater antennas. I've found a few papers online, but does anyone
> >> have a
> >> > good reference to a detailed design?
> >> >
> >> > Does the ARRL Antenna book latest edition have any significant
> >> > coverage
> >> of
> >> > eggbeaters at all? I have an older version that has nothing.
> >> >
> >> > Also, most of the designs I see are for a single band. If you're
> >> deploying
> >> > a pair for satellite operations, do you simply attach them through
> >> > a duplexer? I have a Diamond MX-72N that I picked up a while ago
> >> > for using with dual Baofengs, but it's been sitting in my drawer
> >> > since I picked
> >> up my
> >> > TH-D72A. It has a 1.6~150MHz lead and a 350~460MHz lead.
> >> >
> >> > Thanks in advance for any pointers you might have.
> >> >
> >> >
> >> > --
> >> > Devin L. Ganger (WA7DLG)
> >> > email:
devin@????????.???<????????????@????????.???><mailto:devin@????????.???<??????
??????@????????.???>>
> >> > web: Devin on Earth<http://www.devinonearth.com/>
> >> > cell: +1 425.239.2575
> >> >
> >> > _______________________________________________
> >> > 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
> >>
> >
> _______________________________________________
> 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: 7
Date: Fri, 3 May 2019 23:00:26 +0000 (UTC)
From: "Bob Liddy (K8BL)" <k8bl@?????????.???>
To: AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] ARRL Antenna book, eggbeater antenna designs
Message-ID: <1719010491.1127578.1556924426443@????.?????.???>
Content-Type: text/plain; charset=UTF-8
I got a good chuckle out of KG5CCI's link to the MFJ Dummy
? Loads.?
Quite a few years back, I picked up a pair of the M2 Eggbeaters?at a Hamfest
for $150. I put them up with some 9913 and found?that they were very close
to being Dummy Loads in the sky. That?was probably why the guy was selling
them so cheap. They were?sold again a couple years ago at Dayton for the
same price. Lesson?learned.
I always thought the concept was very good, but the results were?very
disappointing. That was before the excellent performing SATs?we have up
there now. Maybe they would have moderate success?now, but I wouldn't get my
hopes up.
My suggestion would be to get/build a couple small Yagis and put?them on a
mast several feet apart with the 70cm above and the 2M?below with one
vertical and one horizontal polarized. Tilt them up?15-20 degrees and a
cheap TV Rotor is all you need. The tilting can? be done by fashioning a
mast-to-boom plate drilled for the desired? angle for each antenna. Or, you
could merely bend the mast that small? amount. This should give you
reasonable success until you decide you? have the experience to get more
sophisticated and will not have spent? a bunch of money initially.
GL/73,? ? ?Bob? K8BL? ? ? ? (AMSAT #6593 since 1979)
On Friday, May 3, 2019, 5:00:48 PM EDT, David Swanson via AMSAT-BB
<amsat-bb@?????.???> wrote:
Hi Sean!
I don't recall seeing any name calling here until your post, I genuinely
want to make sure the author of this thread who has sent numerous emails to
this list explaining how to operate gets the best tips in regards to their
planned build. I'm actually in the process of building the setup I
recommended and will plan on doing a demo for folks sometime here soon,
stay tuned!
-Dave, KG5CCI
On Fri, May 3, 2019 at 3:51 PM Sean Waite <waisean@?????.???> wrote:
> Ah, yes, rather than maybe educate someone let's just berate them and
> functionally call them an idiot.
>
> Eggbeaters have a bad rap because they don't necessarily hear well. You
> may be making it into the bird but not hearing yourself, so you keep tuning
> around and calling trying to find yourself only to be deaf-ly QRMing other
> stations. I have no experience with them, but that's what I've heard.
>
> 73,
> Sean WA1TE
>
> On Fri, May 3, 2019 at 4:49 PM David Swanson via AMSAT-BB <
> amsat-bb@?????.???> wrote:
>
>> Instead of building eggbeaters, pick up a few of these:
>>
>> http://www.mfjenterprises.com/Product.php?productid=MFJ-261
>>
>> You'll also need a pair of these:
>>
>> https://www.amazon.com/Coaxial-Cable-Female-SO239-PL259/dp/B00KQHH7VC
>>
>> Hook those into your baofengs and you'll be just as effective on the
>> Satellites as you would with some homemade 'beaters.
>>
>> Good luck! 73!
>>
>> -Dave, KG5CCI
>>
>> On Fri, May 3, 2019 at 3:19 PM Devin L. Ganger via AMSAT-BB <
>> amsat-bb@?????.???> wrote:
>>
>> > Greetings, programs!
>> >
>> > I'm looking to work with my son (who will be studying to get his
>> > Technician license later this month) on building a UHF/VHF pair of
>> > eggbeater antennas. I've found a few papers online, but does anyone
>> have a
>> > good reference to a detailed design?
>> >
>> > Does the ARRL Antenna book latest edition have any significant coverage
>> of
>> > eggbeaters at all? I have an older version that has nothing.
>> >
>> > Also, most of the designs I see are for a single band. If you're
>> deploying
>> > a pair for satellite operations, do you simply attach them through a
>> > duplexer? I have a Diamond MX-72N that I picked up a while ago for using
>> > with dual Baofengs, but it's been sitting in my drawer since I picked
>> up my
>> > TH-D72A. It has a 1.6~150MHz lead and a 350~460MHz lead.
>> >
>> > Thanks in advance for any pointers you might have.
>> >
>> >
>> > --
>> > Devin L. Ganger (WA7DLG)
>> > email: devin@????????.???<????????????@????????.???>
>> > web: Devin on Earth<http://www.devinonearth.com/>
>> > cell: +1 425.239.2575
>> >
>> > _______________________________________________
>> > 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
>>
>
_______________________________________________
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 14, Issue 180
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