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CX2SA > SATDIG 01.06.16 22:27l 830 Lines 31992 Bytes #999 (0) @ WW
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Today's Topics:
1. Re: EsHail Microwave transponder satellite (?ilvinas Atko?i?nas)
2. Re: Polarization (attitude mostly) (Robert Bruninga)
3. Re: EsHail Microwave transponder satellite (John Toscano)
4. Re: EsHail Microwave transponder satellite (John Toscano)
5. Re: EsHail Microwave transponder satellite (Robert Bruninga)
6. Re: EsHail Microwave transponder satellite (Daniel Cussen)
7. AMSAT @ White Mountain Hamfest (Show Low AZ), this Saturday
(Patrick STODDARD (WD9EWK/VA7EWK))
8. WD9EWK road trip, Saturday (4 June) PM & Sunday (5 June)...
(Patrick STODDARD (WD9EWK/VA7EWK))
9. Gould Smith (Mike Miller)
----------------------------------------------------------------------
Message: 1
Date: Wed, 1 Jun 2016 14:19:41 +0300
From: ?ilvinas Atko?i?nas <zilvinas.atkociunas@xxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] EsHail Microwave transponder satellite
Message-ID:
<CAHFd=yY3HCwSj8rvg9cXn7aMXGHZWvBMQpejpQ25L4c7A1WJjw@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Hi all,
Any ideas how to use two antennas with single dish ? (one of them SAT LNB)
Zilvis LY2SS
2016-05-31 17:28 GMT+03:00 Rico van Genugten <rico.van.genugten@xxxxx.xxx>:
> Hi Remco,
>
> Sounds like you made a lot of progress on your Es'HailSat2 groundstation
> already. I would be interested to learn more about your transverter design
> and where you got the UMTS PA, and I'm sure some other people on this list
> too. :)
>
> Rico PA3RVG
>
>
>
> On Tue, May 31, 2016 at 12:07 PM, Remco <pa3fym@xxxxx.xxx> wrote:
>
> > >What are other folks planning to use on the uplink 2400 MHz and the down
> > >link at 10,489 MHz, for the narrowband linear transponder ?
> > I will use a cheap injection locked X-band PLL LNB with dielectric rod
> > and additional converter to let the NB transponder land inside one of the
> > bands my transceivers accomodate.
> > For the S-band uplink a dedicated (simple!) TX converter is now
> prototyped.
> > Output of the converter will be around 5 dBm to be inserted in an old
> UMTS
> > (2.1 GHz) module, capable of delivering around 20 - 30W at 2400 MHz on
> the
> > bench with this drive. Of course uplink output can be tweaked.
> > I am also busy with the dual band feed, of which the downlink of course
> is
> > inside the LNB.
> >
> > For the uplink I made a 6 turn LHCP helix but am now fiddling with the
> > matching due to
> > mechanical boundary conditions. At this moment of writing I (still)
> > haven't a good match
> > but I reckon this mechanical issue will be solved soon.
> > Secondly I need to experiment with the phase centers of both up- and
> > downlink
> > to maximise overall efficiency. Even when I'm not able to equalise both
> > phase centers
> > I have some room in my uplink budget to compensate for suboptimal
> > illumination.
> > In my prototype the LNB looks 'through' the helix.
> > Antenna will be a Triax 88cm broadcast satellite dish with f/D of around
> > 0.6.
> > All internal frequencies will be/are locked to GPS which allows my idea
> of
> > building a
> > SUT (satellite user terminal) [for portable use] in conjunction with one
> > (1) transceiver.
> > In other words, my concept will be that Es'hail2 behaves like a normal
> > amateur band, albeit with some delay ;-)
> > Remco PA3FYM
> >
> >
> > _______________________________________________
> > Sent via AMSAT-BB@xxxxx.xxx. 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@xxxxx.xxx. 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: 2
Date: Wed, 1 Jun 2016 12:11:01 -0400
From: Robert Bruninga <bruninga@xxxx.xxx>
To: dan@xxxx.xxxx AMSAT-BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Polarization (attitude mostly)
Message-ID: <514043bc47838980258c68ae6ebe382b@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Having the RHCP/LHCP switch is better than not having it since it gives
you one more ace in the hole. Sure, it might only provide true value for
a few seconds due to all the other variables, but when it occurs, it is
nice to have for such high visibility events (especially if someone else
is buying the hardware)... but for me personally, I'd probably not bother
with the complexity for just a few more seconds of null avoidance...
Just an opinion.
Bob, Wb4aPR
-----Original Message-----
From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Daniel
Cussen
Sent: Wednesday, June 01, 2016 5:00 AM
To: AMSAT-BB
Subject: Re: [amsat-bb] Polarization (attitude mostly)
> I pushed back on that requirement
> due to cost and availability issues, but went ahead and installed the
> polarity switch on our CP antennas. With certainty I can tell you
> that at random times it made a huge difference in downlink signal level.
There was discussion on the ARISS OPs mailing list as to what to recommend
to schools and what would give best "bang for buck" I am still not 100%
convinced that a RHCP/LHCP switch is indeed necessary for ARISS contacts.
The only way to confirm would be one station with both RHCP and LHCP both
receiving at the exact same time and logging or recording the results.
Most/all stations that have said the switch helped have not compared in
real time not switching. Over time the ISS signal can vary wildly, in
particular the solar panels can totally block the signal completely from
time to time. There is a couple of stations with dual VHF circular systems
(mostly ARISS tele-bridge ground stations) and I have asked them to help.
Until we have real world comparisons at least in the case of the ISS, I am
not sure a switch is needed. Can someone do tests to check?
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. 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: 3
Date: Wed, 1 Jun 2016 12:26:44 -0500
From: John Toscano <tosca005@xxx.xxx>
To: ?ilvinas Atko?i?nas <zilvinas.atkociunas@xxxxx.xxx>
Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] EsHail Microwave transponder satellite
Message-ID:
<CABGf72oBshzez1kumY4p7eUCo1jHqjzLHHr8cQBWn9NSMos=xA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
I fat-fingered my reply and it got sent before I finished it. What I was
trying to say is that a Yaesu Az/El rotator system has a cross-boom onto
which your antennas are mounted, and you want to balance the weight on the
left and right half of the boom. So, two equal-sized dishes works well, but
a dish and something else like a loop yagi can also work
On Wed, Jun 1, 2016 at 6:19 AM, ?ilvinas Atko?i?nas <
zilvinas.atkociunas@xxxxx.xxx> wrote:
> Hi all,
>
> Any ideas how to use two antennas with single dish ? (one of them SAT LNB)
>
> Zilvis LY2SS
>
> 2016-05-31 17:28 GMT+03:00 Rico van Genugten <rico.van.genugten@xxxxx.xxx
> >:
>
> > Hi Remco,
> >
> > Sounds like you made a lot of progress on your Es'HailSat2 groundstation
> > already. I would be interested to learn more about your transverter
> design
> > and where you got the UMTS PA, and I'm sure some other people on this
> list
> > too. :)
> >
> > Rico PA3RVG
> >
> >
> >
> > On Tue, May 31, 2016 at 12:07 PM, Remco <pa3fym@xxxxx.xxx> wrote:
> >
> > > >What are other folks planning to use on the uplink 2400 MHz and the
> down
> > > >link at 10,489 MHz, for the narrowband linear transponder ?
> > > I will use a cheap injection locked X-band PLL LNB with dielectric rod
> > > and additional converter to let the NB transponder land inside one of
> the
> > > bands my transceivers accomodate.
> > > For the S-band uplink a dedicated (simple!) TX converter is now
> > prototyped.
> > > Output of the converter will be around 5 dBm to be inserted in an old
> > UMTS
> > > (2.1 GHz) module, capable of delivering around 20 - 30W at 2400 MHz on
> > the
> > > bench with this drive. Of course uplink output can be tweaked.
> > > I am also busy with the dual band feed, of which the downlink of course
> > is
> > > inside the LNB.
> > >
> > > For the uplink I made a 6 turn LHCP helix but am now fiddling with the
> > > matching due to
> > > mechanical boundary conditions. At this moment of writing I (still)
> > > haven't a good match
> > > but I reckon this mechanical issue will be solved soon.
> > > Secondly I need to experiment with the phase centers of both up- and
> > > downlink
> > > to maximise overall efficiency. Even when I'm not able to equalise both
> > > phase centers
> > > I have some room in my uplink budget to compensate for suboptimal
> > > illumination.
> > > In my prototype the LNB looks 'through' the helix.
> > > Antenna will be a Triax 88cm broadcast satellite dish with f/D of
> around
> > > 0.6.
> > > All internal frequencies will be/are locked to GPS which allows my idea
> > of
> > > building a
> > > SUT (satellite user terminal) [for portable use] in conjunction with
> one
> > > (1) transceiver.
> > > In other words, my concept will be that Es'hail2 behaves like a normal
> > > amateur band, albeit with some delay ;-)
> > > Remco PA3FYM
> > >
> > >
> > > _______________________________________________
> > > Sent via AMSAT-BB@xxxxx.xxx. 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@xxxxx.xxx. 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@xxxxx.xxx. 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: 4
Date: Wed, 1 Jun 2016 12:22:44 -0500
From: John Toscano <tosca005@xxx.xxx>
To: ?ilvinas Atko?i?nas <zilvinas.atkociunas@xxxxx.xxx>
Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] EsHail Microwave transponder satellite
Message-ID:
<CABGf72pkSU6C5E=ooeb6saz-gFuDESwowp-Gt_0WTz4+MQ0VkA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
I don't think it is possible to create a dual-band dish feed that covers
2.4 and 10.5 GHz. AMSAT folks are working hard on a 5G/10G dual-band feed,
and that is difficult. Even more complicated is your desire to use a
commercial 10G satellite TV LNB as one of the two feeds. I think you are
going to have to use two antennas for those 2 bands. The 10G dish with
satellite TV LNB for one of them, and either a separate dish or a loop yagi
or something else for the uplink. A Yaesu Az/El rotor can handle a pair of
antennas, in fact it is almost a re
On Wed, Jun 1, 2016 at 6:19 AM, ?ilvinas Atko?i?nas <
zilvinas.atkociunas@xxxxx.xxx> wrote:
> Hi all,
>
> Any ideas how to use two antennas with single dish ? (one of them SAT LNB)
>
> Zilvis LY2SS
>
> 2016-05-31 17:28 GMT+03:00 Rico van Genugten <rico.van.genugten@xxxxx.xxx
> >:
>
> > Hi Remco,
> >
> > Sounds like you made a lot of progress on your Es'HailSat2 groundstation
> > already. I would be interested to learn more about your transverter
> design
> > and where you got the UMTS PA, and I'm sure some other people on this
> list
> > too. :)
> >
> > Rico PA3RVG
> >
> >
> >
> > On Tue, May 31, 2016 at 12:07 PM, Remco <pa3fym@xxxxx.xxx> wrote:
> >
> > > >What are other folks planning to use on the uplink 2400 MHz and the
> down
> > > >link at 10,489 MHz, for the narrowband linear transponder ?
> > > I will use a cheap injection locked X-band PLL LNB with dielectric rod
> > > and additional converter to let the NB transponder land inside one of
> the
> > > bands my transceivers accomodate.
> > > For the S-band uplink a dedicated (simple!) TX converter is now
> > prototyped.
> > > Output of the converter will be around 5 dBm to be inserted in an old
> > UMTS
> > > (2.1 GHz) module, capable of delivering around 20 - 30W at 2400 MHz on
> > the
> > > bench with this drive. Of course uplink output can be tweaked.
> > > I am also busy with the dual band feed, of which the downlink of course
> > is
> > > inside the LNB.
> > >
> > > For the uplink I made a 6 turn LHCP helix but am now fiddling with the
> > > matching due to
> > > mechanical boundary conditions. At this moment of writing I (still)
> > > haven't a good match
> > > but I reckon this mechanical issue will be solved soon.
> > > Secondly I need to experiment with the phase centers of both up- and
> > > downlink
> > > to maximise overall efficiency. Even when I'm not able to equalise both
> > > phase centers
> > > I have some room in my uplink budget to compensate for suboptimal
> > > illumination.
> > > In my prototype the LNB looks 'through' the helix.
> > > Antenna will be a Triax 88cm broadcast satellite dish with f/D of
> around
> > > 0.6.
> > > All internal frequencies will be/are locked to GPS which allows my idea
> > of
> > > building a
> > > SUT (satellite user terminal) [for portable use] in conjunction with
> one
> > > (1) transceiver.
> > > In other words, my concept will be that Es'hail2 behaves like a normal
> > > amateur band, albeit with some delay ;-)
> > > Remco PA3FYM
> > >
> > >
> > > _______________________________________________
> > > Sent via AMSAT-BB@xxxxx.xxx. 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@xxxxx.xxx. 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@xxxxx.xxx. 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: 5
Date: Wed, 1 Jun 2016 14:46:29 -0400
From: Robert Bruninga <bruninga@xxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] EsHail Microwave transponder satellite
Message-ID: <ffcf15a7b4eeb4b7f8654627ae97fdec@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Im not following this closely, but if the bands were cross polarized, it
should be possible...?
Bob, WB4APR
-----Original Message-----
From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of John Toscano
Sent: Wednesday, June 01, 2016 1:23 PM
To: ?ilvinas Atko?i?nas
Cc: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] EsHail Microwave transponder satellite
I don't think it is possible to create a dual-band dish feed that covers
2.4 and 10.5 GHz. AMSAT folks are working hard on a 5G/10G dual-band feed,
and that is difficult. Even more complicated is your desire to use a
commercial 10G satellite TV LNB as one of the two feeds. I think you are
going to have to use two antennas for those 2 bands. The 10G dish with
satellite TV LNB for one of them, and either a separate dish or a loop yagi
or something else for the uplink. A Yaesu Az/El rotor can handle a pair of
antennas, in fact it is almost a re
On Wed, Jun 1, 2016 at 6:19 AM, ?ilvinas Atko?i?nas <
zilvinas.atkociunas@xxxxx.xxx> wrote:
> Hi all,
>
> Any ideas how to use two antennas with single dish ? (one of them SAT
> LNB)
>
> Zilvis LY2SS
>
> 2016-05-31 17:28 GMT+03:00 Rico van Genugten
> <rico.van.genugten@xxxxx.xxx
> >:
>
> > Hi Remco,
> >
> > Sounds like you made a lot of progress on your Es'HailSat2
> > groundstation already. I would be interested to learn more about
> > your transverter
> design
> > and where you got the UMTS PA, and I'm sure some other people on
> > this
> list
> > too. :)
> >
> > Rico PA3RVG
> >
> >
> >
> > On Tue, May 31, 2016 at 12:07 PM, Remco <pa3fym@xxxxx.xxx> wrote:
> >
> > > >What are other folks planning to use on the uplink 2400 MHz and
> > > >the
> down
> > > >link at 10,489 MHz, for the narrowband linear transponder ?
> > > I will use a cheap injection locked X-band PLL LNB with dielectric
> > > rod and additional converter to let the NB transponder land inside
> > > one of
> the
> > > bands my transceivers accomodate.
> > > For the S-band uplink a dedicated (simple!) TX converter is now
> > prototyped.
> > > Output of the converter will be around 5 dBm to be inserted in an
> > > old
> > UMTS
> > > (2.1 GHz) module, capable of delivering around 20 - 30W at 2400
> > > MHz on
> > the
> > > bench with this drive. Of course uplink output can be tweaked.
> > > I am also busy with the dual band feed, of which the downlink of
> > > course
> > is
> > > inside the LNB.
> > >
> > > For the uplink I made a 6 turn LHCP helix but am now fiddling with
> > > the matching due to mechanical boundary conditions. At this moment
> > > of writing I (still) haven't a good match but I reckon this
> > > mechanical issue will be solved soon.
> > > Secondly I need to experiment with the phase centers of both up-
> > > and downlink to maximise overall efficiency. Even when I'm not
> > > able to equalise both phase centers I have some room in my uplink
> > > budget to compensate for suboptimal illumination.
> > > In my prototype the LNB looks 'through' the helix.
> > > Antenna will be a Triax 88cm broadcast satellite dish with f/D of
> around
> > > 0.6.
> > > All internal frequencies will be/are locked to GPS which allows my
> > > idea
> > of
> > > building a
> > > SUT (satellite user terminal) [for portable use] in conjunction
> > > with
> one
> > > (1) transceiver.
> > > In other words, my concept will be that Es'hail2 behaves like a
> > > normal amateur band, albeit with some delay ;-) Remco PA3FYM
> > >
> > >
> > > _______________________________________________
> > > Sent via AMSAT-BB@xxxxx.xxx. 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@xxxxx.xxx. 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@xxxxx.xxx. 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@xxxxx.xxx. 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: 6
Date: Wed, 1 Jun 2016 20:00:59 +0100
From: Daniel Cussen <dan@xxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] EsHail Microwave transponder satellite
Message-ID:
<CAF3DnKgU3YHfR-nKtdpcqCh3+JnUGzJPtu1USPOdJQ4vMfyNyQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
I asked a manufacturer of feeds (RFHAMDESIGN) and they said a dual
feed was not possible. Uplink is circular and downlink is linear using
a normal LNB.
However many Europeans may have one dish for TV anyway. It is
relatively easy to mount two LNBs on one dish for 2 different
satellite positions, so one dish for household TV with a second LNB
for Eshail sat, The LNB that is offset from prime focus will see a
smaller gain than prime focus so a slightly larger dish may be needed
and a separate dedicated dish for circular uplink. That is not to say
it could not be done, but to have both at the same focal point is not
a good idea.
A rotator is not needed for EsHail as it is proper geostationary.
Zilvinas
So do you currently have satellite TV, how big, and what satellite is
it pointing at?
Also what is your location?
On 01/06/2016, Robert Bruninga <bruninga@xxxx.xxx> wrote:
> Im not following this closely, but if the bands were cross polarized, it
> should be possible...?
> Bob, WB4APR
>
> -----Original Message-----
> From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of John Toscano
> Sent: Wednesday, June 01, 2016 1:23 PM
> To: ?ilvinas Atko?i?nas
> Cc: amsat-bb@xxxxx.xxx
> Subject: Re: [amsat-bb] EsHail Microwave transponder satellite
>
> I don't think it is possible to create a dual-band dish feed that covers
> 2.4 and 10.5 GHz. AMSAT folks are working hard on a 5G/10G dual-band feed,
> and that is difficult. Even more complicated is your desire to use a
> commercial 10G satellite TV LNB as one of the two feeds. I think you are
> going to have to use two antennas for those 2 bands. The 10G dish with
> satellite TV LNB for one of them, and either a separate dish or a loop yagi
> or something else for the uplink. A Yaesu Az/El rotor can handle a pair of
> antennas, in fact it is almost a re
>
> On Wed, Jun 1, 2016 at 6:19 AM, ?ilvinas Atko?i?nas <
> zilvinas.atkociunas@xxxxx.xxx> wrote:
>
>> Hi all,
>>
>> Any ideas how to use two antennas with single dish ? (one of them SAT
>> LNB)
>>
>> LY2SS
>>
------------------------------
Message: 7
Date: Wed, 1 Jun 2016 19:14:06 +0000
From: "Patrick STODDARD (WD9EWK/VA7EWK)" <amsat-bb@xxxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] AMSAT @ White Mountain Hamfest (Show Low AZ), this
Saturday
Message-ID:
<CAN6TEUeT8WMyEiUU+gros4oyejeQWZ4eQ+rEh78StZfvzkJx3w@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Hi!
I will have an AMSAT table at the White Mountain Hamfest in Show Low,
Arizona, this Saturday, 4 June 2016. The hamfest will be at the Show Low
City Hall parking lot, south of US-60 and west of AZ-260 in the center
of Show Low. This is a half-day hamfest, scheduled to end "noonish"
(around 1900 UTC).
During the hamfest, WD9EWK will be on various satellite passes for on-air
demonstrations of satellite operating. Please call WD9EWK if you hear me,
and be a part of the demonstrations. The hamfest site is in grid DM44.
All QSOs will be uploaded to Logbook of the World after the hamfest, and I
am happy to send QSL cards to anyone who wishes to receive a card. Please
e-mail me the QSO details to get a card. If you're in the log, I will send
a card. No need to first mail a card and/or SASE to get my card in return.
I should be able to post pictures and other updates during the morning to
my @xxxxxx Twitter feed. This is an open feed, which can be viewed in a web
browser at:
http://twitter.com/WD9EWK
if you don't use Twitter. Also, my location should be visible via APRS. I
use WD9EWK-9 as my call sign for APRS, and - among other sites - it should
be visible at:
http://aprs.fi/WD9EWK-9
during my drive to Show Low on Friday evening, as well as at the hamfest
Saturday morning. Other than on ISS passes, I won't leave my APRS radio
squawking once I have parked at the hamfest.
Thanks in advance, and 73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
Twitter: @xxxxxx
------------------------------
Message: 8
Date: Wed, 1 Jun 2016 19:43:51 +0000
From: "Patrick STODDARD (WD9EWK/VA7EWK)" <amsat-bb@xxxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] WD9EWK road trip, Saturday (4 June) PM & Sunday (5
June)...
Message-ID:
<CAN6TEUd4Y2=jvYLHKRbyu3JOzNSWZ28tp5Z1M0U5n0nQX=4jiQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Hi!
After the White Mountain Hamfest wraps up on Saturday in Show Low, Arizona,
I plan on making a long drive around northern Arizona before returning home
on Sunday afternoon or evening. I have some of the trip planned out, and
had asked for some suggestions or comments from those who follow my @xxxxxx
Twitter feed. Looking for more suggestions/comments, I'm also posting here.
In the early afternoon, I am planning to drive from Show Low to Petrified
Forest National Park, along the I-40 freeway in eastern Arizona. This is in
grid DM55. I hope to make contacts from here with at least 10 different
stations to have this visit considered an official activation for the
ARRL's National Parks on the Air activity. Depending on how long I spend at
Petrified Forest, I might drive through the park to the south end of the
park in grid DM54, or possibly try to park on the DM54/DM55 grid boundary
inside the park.
After Petrified Forest, if there is still daylight, I hope to make a stop
at a different point on the DM54/DM55 grid boundary, a few miles/km west of
Petrified Forest along I-40 and old US-66. Then to Flagstaff for the night.
Again, depending on the time and available satellite passes, I may try to
get on from Flagstaff, which is in grid DM45.
Sunday morning and early afternoon is, so far, open. I have a few options
for that time...
1. Drive west of Flagstaff approximately 25 miles/40km to the DM35/DM45
grid boundary. This would be along old US-66, north of I-40 in the Kaibab
National Forest. Keep in mind that national forests are not part of the
National Parks on the Air activity, but this could be a chance for these
two grids to be put on the air.
2. Work from various NPOTA sites around Flagstaff. These sites are in grid
DM45, and include the Sunset Crater Volcano National Monument and Wupatki
National Monument north of Flagstaff, and the Walnut Canyon National
Monument east of Flagstaff. The two sites north of Flagstaff are close
enough where I could operate from both of them, and possibly make enough
QSOs to have two official NPOTA activations.
3. Work from Grand Canyon National Park, about 90 minutes northwest of
Flagstaff. The main park entrance from the south straddles the DM35/DM36
grid boundary, but is not a good place to park and operate. I could park
at different locations to put DM36 and DM46 on the air, but probably not
from the DM36/DM46 grid boundary which starts just inside the canyon - not
a safe place to go at that point. Between locations in DM36 and DM46, I
think I would be able to make enough QSOs with different stations to make
this an official NPOTA activation, as well as hand out QSOs with each of
these two grids. I have not operated from the Grand Canyon in many years,
but I know KL7R operated from the Grand Canyon earlier this year.
Depending on the time spent in northern Arizona on Sunday, I could also
stop at the Montezuma Castle National Monument, along the I-17 freeway
between Phoenix and Flagstaff. This site is in grid DM44, the same grid
I will operate from during the White Mountain Hamfest in Show Low on
Saturday morning, except I will be on the western edge of DM44 compared
to Show Low being on the eastern edge of the same grid.
Since I will be at a hamfest in Prescott AZ on 11 June, located in grid
DM34, I'm not worrying about trying to operate from that grid this weekend.
I will have a whole day for that coming up. I'll post more about that
hamfest next week.
Comments? I suppose this can be discussed here on the AMSAT-BB, or feel
free to e-mail me directly with any thoughts on these plans for Sunday.
You could also tweet at my @xxxxxx Twitter handle, if you use Twitter.
I will use Twitter to post updates on Saturday afternoon and Sunday while
I am on the road. If you don't use Twitter, you can follow my postings at:
http://twitter.com/WD9EWK
I will also use my TH-D72A on APRS as I drive around, with the call sign
WD9EWK-9. This should be visible at (among other sites):
http://aprs.fi/WD9EWK-9
Other than possibly parts of I-40 between Flagstaff and Petrified Forest
National Park on the high desert of northern Arizona, APRS coverage is
generally pretty good. In the absence of APRS coverage, I may periodically
tweet photos of a GPS receiver's display to show my location.
73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
Twitter: @xxxxxx
------------------------------
Message: 9
Date: Wed, 1 Jun 2016 14:18:07 -0500
From: Mike Miller <mikerph1951@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Gould Smith
Message-ID: <5ddf0b64-ba8e-9fdb-be5c-6b1ce45bd786@xxxxx.xxx>
Content-Type: text/plain; charset=utf-8; format=flowed
Anyone know how Gould Smith WA4SXM is doing?
Mike Miller KA5SMA
--
------------------------------
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End of AMSAT-BB Digest, Vol 11, Issue 177
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