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CX2SA > SATDIG 17.03.15 04:00l 903 Lines 38321 Bytes #999 (0) @ WW
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Today's Topics:
1. Re: Recommendations for dual-core mobile for in-car SO-50
(Dave Webb KB1PVH)
2. UT1FG/MM Update Next Port Oregon (John Papay)
3. Re: UT1FG/MM Update Next Port Oregon (Jeff Moore)
4. Re: UT1FG/MM Update Next Port Oregon (Richard Tejera)
5. AMSAT at 2015 ScienceCity/Tucson Festival of Books - report
(Patrick STODDARD (WD9EWK/VA7EWK))
6. Re: AMSAT at 2015 ScienceCity/Tucson Festival of Books -
report (Stefan Wagener)
7. Moxon on top a Baofeng UV-5R for 70cm experiment
(Pavel Milanes Costa)
8. Re: Moxon on top a Baofeng UV-5R for 70cm experiment
(Richard Tejera)
9. Re: Moxon on top a Baofeng UV-5R for 70cm experiment
(Pavel Milanes Costa)
----------------------------------------------------------------------
Message: 1
Date: Sun, 15 Mar 2015 14:45:19 -0400
From: Dave Webb KB1PVH <kb1pvh@xxxxx.xxx>
To: Jacob Tennant <jakewf8s@xxxxx.xxx>
Cc: AMSAT -BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Recommendations for dual-core mobile for
in-car SO-50
Message-ID:
<CAEMY9FfWxpAuvcBuSXcLipuP=s=Ue3oKWcsgKrP5nC1OOxBZJg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Jacob,
Either a Kenwood D700 or D710 would allow full duplex operation. I have
used my D700 in the past on AO-51, but it was a lot easier to copy than
SO-50. I think you will be disappointed trying to hear SO-50 with a dual
band on the car, but maybe the new batch of FM birds will be better.
Dave-KB1PVH
Sent from my Samsung S4
------------------------------
Message: 2
Date: Sun, 15 Mar 2015 15:31:05 -0400
From: John Papay <john@xxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] UT1FG/MM Update Next Port Oregon
Message-ID: <768630.6991.bm@xxxxxxx.xxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
Yuri, UT1FG/MM, is currently in EK42 in the Pacific Ocean
off the coast of Guatemala. He expects to be in EK42 through
Sunday evening March 15th. He is going to be
drifting for the next few days, likely to the northwest. His
next port is Longview, Oregon, but he cannot arrive at the port
until 1 April. Therefore he is waiting a bit where the weather
is good before heading up the coast.
His course up the coast will be fruitfull in terms of new grids.
Amongst those that are highly sought after are DM02 and CM79 which
are both part of the Continental US and required for those trying
to work all 488 Continental USA grids. His time in DM02 may be
very limited and passes may not correspond to his track across
the grid. But Yuri knows that this grid is rare and sought after
and will do what he can to be there during workable passes. His
time in CM79 will be much longer and it should be possible to work
him in that grid.
In addition Yuri will go through the middle of CN70 through CN76
which all have land on their eastern edge. These grids are normally
hard to work but should be relatively easy due to the low horizon
that he has on the ship. His speed is normally around 11-14 knots
so you can judge how long he will be in a grid. Each of these
grids is about 70 miles from south to north.
His next port after Oregon is unknown but if he picks up cargo
destined for ports in the east, he will likely come back down the
coast to the Panama Canal and give everyone another shot at working
grids that they missed when he was northbound.
Yuri is a very patient operator and skilled at operating with just
one IC706 tuned manually. Remember that he has to find those calling
him. If you give your call just once he will not likely get it. Give
it twice at a reasonable pace, with phonetics, and you will increase
your chances of a qso. Call and then listen for a bit to see if he
calls someone. Yuri is very good at recognizing callsigns that he has
worked before, even if he just gets a few letters. But that doesn't
mean you can rattle off your call without phonetics and expect him to
get it right. Phoentics might seem like a waste of precious satellite
time but if he doesn't get it the first time, the extra time it takes
to correct it will be worse. Yuri's English is very good but remember
it is not his first language.
Yuri uses an ELK antenna mounted on a PVC mast that runs from the deck
of the Bridge up to the Flying Bridge. The Flying Bridge appurtenances
can block the sky from the port to stern. For example, if the ship is
traveling due north, his signal at lower elevations will be blocked from
270 to 180 degrees. See where the satellite is with respect to his
course and you will be able to predict when he may not be able to hear
very well. If he is in range of an AIS station you can get his speed
and course on marinetraffic.com. Search for the "Greenwing." The ELK
antenna is pointed up at 15 degrees and can be rotated by the crew.
Sometimes you can hear Yuri requesting that they turn the antenna for
him (not in English). The ELK is a few years old now and has been blown
down before. He takes it apart and greases the connections to prevent
the salt from destroying it. Based on what I see the salt do to
antennas here in Florida, it is amazing that he has been able to keep
this antenna in working condition.
Yuri has been working on QSL card requests from last season as well as
this season. My guess is that he will mail some from Oregon where they
will be sure to go out without problems. So be patient. Yuri has a
manager, Eugene, UX0FY, however he does not have the logs for the last
part of the previous season. Yuri does prefer to do the cards himself
even if it takes a little longer.
We have many new operators on the birds and they don't always understand
what it means to have a rare grid on a pass. Many don't know country
prefixes to know where a station is, or what grid is rare. Those who
have been around for a while can mentor others and give the rover station
a chance to make more contacts. Things have changed now that Yuri is
on the west coast. Suddenly the east coast operators who normally have
a big advantage with Yuri are now at a disadvantage since he is in the
Pacific. So if you are on the west coast and will have a footprint with
Yuri for a long time or have a shot at a pass that doesn't cover the east
coast, hold off so that Yuri can work those who have a very short opening.
Yuri gets on most every visible pass while he is on the move, day or night,
so passes out over the Pacific will work fine for west coasters. And if
the situation is reversed, hopefully, east coasters will reciprocate. It
should be noted, however, that there is much more interest in working DX
by those in the east compared to those in the west.
Yuri is an amazing operator and has likely operated in more grids than
anyone. He is a very experienced Captain and you can see how his crew
respects him for that. We are fortunate to have him on the birds. Have
fun working him.
73,
John K8YSE
John Papay
john@xxxxxx.xxx
------------------------------
Message: 3
Date: Sun, 15 Mar 2015 13:44:53 -0700
From: Jeff Moore <tnetcenter@xxxxx.xxx>
To: John Papay <john@xxxxxx.xxx>
Cc: Amsat BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] UT1FG/MM Update Next Port Oregon
Message-ID:
<CALx_moR3sOU8LROtVVogBxw5EzTiXxRoQJskYtcqiJ3Y+83muQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Uri is heading for Longview, Washington (there is no Longview, Oregon
TIKO). Longview, Washington sits on the Washington side of the Columbia
River (the North side). There is nothing on the Oregon side except a road
and the closest Oregon town is Ranier to the East towards Portland. If you
Google Longview, Oregon - you will get Longview, Washington - they are NOT
the same place. Longview, Washington is one of the larger ports on the
West Coast.
7 3
Jeff Moore -- KE7ACY
Bend, Oregon
On Sun, Mar 15, 2015 at 12:31 PM, John Papay <john@xxxxxx.xxx> wrote:
> Yuri, UT1FG/MM, is currently in EK42 in the Pacific Ocean
> off the coast of Guatemala. He expects to be in EK42 through
> Sunday evening March 15th. He is going to be
> drifting for the next few days, likely to the northwest. His
> next port is Longview, Oregon, but he cannot arrive at the port
> until 1 April. Therefore he is waiting a bit where the weather
> is good before heading up the coast.
>
> His course up the coast will be fruitfull in terms of new grids.
> Amongst those that are highly sought after are DM02 and CM79 which
> are both part of the Continental US and required for those trying
> to work all 488 Continental USA grids. His time in DM02 may be
> very limited and passes may not correspond to his track across
> the grid. But Yuri knows that this grid is rare and sought after
> and will do what he can to be there during workable passes. His
> time in CM79 will be much longer and it should be possible to work
> him in that grid.
>
> In addition Yuri will go through the middle of CN70 through CN76
> which all have land on their eastern edge. These grids are normally
> hard to work but should be relatively easy due to the low horizon
> that he has on the ship. His speed is normally around 11-14 knots
> so you can judge how long he will be in a grid. Each of these
> grids is about 70 miles from south to north.
>
> His next port after Oregon is unknown but if he picks up cargo
> destined for ports in the east, he will likely come back down the
> coast to the Panama Canal and give everyone another shot at working
> grids that they missed when he was northbound.
>
> Yuri is a very patient operator and skilled at operating with just
> one IC706 tuned manually. Remember that he has to find those calling
> him. If you give your call just once he will not likely get it. Give
> it twice at a reasonable pace, with phonetics, and you will increase
> your chances of a qso. Call and then listen for a bit to see if he
> calls someone. Yuri is very good at recognizing callsigns that he has
> worked before, even if he just gets a few letters. But that doesn't
> mean you can rattle off your call without phonetics and expect him to
> get it right. Phoentics might seem like a waste of precious satellite
> time but if he doesn't get it the first time, the extra time it takes
> to correct it will be worse. Yuri's English is very good but remember
> it is not his first language.
>
> Yuri uses an ELK antenna mounted on a PVC mast that runs from the deck
> of the Bridge up to the Flying Bridge. The Flying Bridge appurtenances
> can block the sky from the port to stern. For example, if the ship is
> traveling due north, his signal at lower elevations will be blocked from
> 270 to 180 degrees. See where the satellite is with respect to his
> course and you will be able to predict when he may not be able to hear
> very well. If he is in range of an AIS station you can get his speed
> and course on marinetraffic.com. Search for the "Greenwing." The ELK
> antenna is pointed up at 15 degrees and can be rotated by the crew.
> Sometimes you can hear Yuri requesting that they turn the antenna for
> him (not in English). The ELK is a few years old now and has been blown
> down before. He takes it apart and greases the connections to prevent
> the salt from destroying it. Based on what I see the salt do to
> antennas here in Florida, it is amazing that he has been able to keep
> this antenna in working condition.
>
> Yuri has been working on QSL card requests from last season as well as
> this season. My guess is that he will mail some from Oregon where they
> will be sure to go out without problems. So be patient. Yuri has a
> manager, Eugene, UX0FY, however he does not have the logs for the last
> part of the previous season. Yuri does prefer to do the cards himself
> even if it takes a little longer.
>
> We have many new operators on the birds and they don't always understand
> what it means to have a rare grid on a pass. Many don't know country
> prefixes to know where a station is, or what grid is rare. Those who
> have been around for a while can mentor others and give the rover station
> a chance to make more contacts. Things have changed now that Yuri is
> on the west coast. Suddenly the east coast operators who normally have
> a big advantage with Yuri are now at a disadvantage since he is in the
> Pacific. So if you are on the west coast and will have a footprint with
> Yuri for a long time or have a shot at a pass that doesn't cover the east
> coast, hold off so that Yuri can work those who have a very short opening.
> Yuri gets on most every visible pass while he is on the move, day or night,
> so passes out over the Pacific will work fine for west coasters. And if
> the situation is reversed, hopefully, east coasters will reciprocate. It
> should be noted, however, that there is much more interest in working DX
> by those in the east compared to those in the west.
>
> Yuri is an amazing operator and has likely operated in more grids than
> anyone. He is a very experienced Captain and you can see how his crew
> respects him for that. We are fortunate to have him on the birds. Have
> fun working him.
>
> 73,
> John K8YSE
>
> John Papay
> john@xxxxxx.xxx
>
> _______________________________________________
> 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://amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 4
Date: Sun, 15 Mar 2015 14:02:48 -0700
From: Richard Tejera <Saguaroastro@xxx.xxx>
To: Jeff Moore <tnetcenter@xxxxx.xxx>, John Papay <john@xxxxxx.xxx>
Cc: 'AMSAT' <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] UT1FG/MM Update Next Port Oregon
Message-ID: <utf7ly1vxl6yfsomlj6cnrbr.1426453368785@xxxxx.xxxxxxx.xxx>
Content-Type: text/plain; charset=utf-8
Saw him on 10m PSK31 this morning. He was weak and gone b4 I could work him.
Gonna keep an eye out for him there as well.
73
Rick
K7TEJ
On March 15, 2015, at 13:44, Jeff Moore <tnetcenter@xxxxx.xxx> wrote:
Uri is heading for Longview, Washington (there is no Longview, Oregon
TIKO). Longview, Washington sits on the Washington side of the Columbia
River (the North side). There is nothing on the Oregon side except a road
and the closest Oregon town is Ranier to the East towards Portland. If you
Google Longview, Oregon - you will get Longview, Washington - they are NOT
the same place. Longview, Washington is one of the larger ports on the
West Coast.
7 3
Jeff Moore -- KE7ACY
Bend, Oregon
On Sun, Mar 15, 2015 at 12:31 PM, John Papay <john@xxxxxx.xxx> wrote:
> Yuri, UT1FG/MM, is currently in EK42 in the Pacific Ocean
> off the coast of Guatemala. He expects to be in EK42 through
> Sunday evening March 15th. He is going to be
> drifting for the next few days, likely to the northwest. His
> next port is Longview, Oregon, but he cannot arrive at the port
> until 1 April. Therefore he is waiting a bit where the weather
> is good before heading up the coast.
>
> His course up the coast will be fruitfull in terms of new grids.
> Amongst those that are highly sought after are DM02 and CM79 which
> are both part of the Continental US and required for those trying
> to work all 488 Continental USA grids. His time in DM02 may be
> very limited and passes may not correspond to his track across
> the grid. But Yuri knows that this grid is rare and sought after
> and will do what he can to be there during workable passes. His
> time in CM79 will be much longer and it should be possible to work
> him in that grid.
>
> In addition Yuri will go through the middle of CN70 through CN76
> which all have land on their eastern edge. These grids are normally
> hard to work but should be relatively easy due to the low horizon
> that he has on the ship. His speed is normally around 11-14 knots
> so you can judge how long he will be in a grid. Each of these
> grids is about 70 miles from south to north.
>
> His next port after Oregon is unknown but if he picks up cargo
> destined for ports in the east, he will likely come back down the
> coast to the Panama Canal and give everyone another shot at working
> grids that they missed when he was northbound.
>
> Yuri is a very patient operator and skilled at operating with just
> one IC706 tuned manually. Remember that he has to find those calling
> him. If you give your call just once he will not likely get it. Give
> it twice at a reasonable pace, with phonetics, and you will increase
> your chances of a qso. Call and then listen for a bit to see if he
> calls someone. Yuri is very good at recognizing callsigns that he has
> worked before, even if he just gets a few letters. But that doesn't
> mean you can rattle off your call without phonetics and expect him to
> get it right. Phoentics might seem like a waste of precious satellite
> time but if he doesn't get it the first time, the extra time it takes
> to correct it will be worse. Yuri's English is very good but remember
> it is not his first language.
>
> Yuri uses an ELK antenna mounted on a PVC mast that runs from the deck
> of the Bridge up to the Flying Bridge. The Flying Bridge appurtenances
> can block the sky from the port to stern. For example, if the ship is
> traveling due north, his signal at lower elevations will be blocked from
> 270 to 180 degrees. See where the satellite is with respect to his
> course and you will be able to predict when he may not be able to hear
> very well. If he is in range of an AIS station you can get his speed
> and course on marinetraffic.com. Search for the "Greenwing." The ELK
> antenna is pointed up at 15 degrees and can be rotated by the crew.
> Sometimes you can hear Yuri requesting that they turn the antenna for
> him (not in English). The ELK is a few years old now and has been blown
> down before. He takes it apart and greases the connections to prevent
> the salt from destroying it. Based on what I see the salt do to
> antennas here in Florida, it is amazing that he has been able to keep
> this antenna in working condition.
>
> Yuri has been working on QSL card requests from last season as well as
> this season. My guess is that he will mail some from Oregon where they
> will be sure to go out without problems. So be patient. Yuri has a
> manager, Eugene, UX0FY, however he does not have the logs for the last
> part of the previous season. Yuri does prefer to do the cards himself
> even if it takes a little longer.
>
> We have many new operators on the birds and they don't always understand
> what it means to have a rare grid on a pass. Many don't know country
> prefixes to know where a station is, or what grid is rare. Those who
> have been around for a while can mentor others and give the rover station
> a chance to make more contacts. Things have changed now that Yuri is
> on the west coast. Suddenly the east coast operators who normally have
> a big advantage with Yuri are now at a disadvantage since he is in the
> Pacific. So if you are on the west coast and will have a footprint with
> Yuri for a long time or have a shot at a pass that doesn't cover the east
> coast, hold off so that Yuri can work those who have a very short opening.
> Yuri gets on most every visible pass while he is on the move, day or night,
> so passes out over the Pacific will work fine for west coasters. And if
> the situation is reversed, hopefully, east coasters will reciprocate. It
> should be noted, however, that there is much more interest in working DX
> by those in the east compared to those in the west.
>
> Yuri is an amazing operator and has likely operated in more grids than
> anyone. He is a very experienced Captain and you can see how his crew
> respects him for that. We are fortunate to have him on the birds. Have
> fun working him.
>
> 73,
> John K8YSE
>
> John Papay
> john@xxxxxx.xxx
>
> _______________________________________________
> 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://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://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 5
Date: Mon, 16 Mar 2015 13:29:50 -0700
From: "Patrick STODDARD (WD9EWK/VA7EWK)" <amsat-bb@xxxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] AMSAT at 2015 ScienceCity/Tucson Festival of Books
- report
Message-ID:
<CAN6TEUd+uNJg25r00vq+S0nDM3DD0r4HZaCw6CDZz5AKeGB=sA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Hi!
AMSAT was part of the K7UAZ Amateur Radio Club's booth at the 2015 Science
City/Tucson Festival of Books, which combined a book fair with a science
fair on the University of Arizona campus in Tucson last weekend. AMSAT
was present on Saturday. A local radio club, the Oro Valley Amateur Radio Club
(W0HF), was there all weekend. This event is a joint effort between the
University of Arizona and the Arizona Daily Star newspaper in Tucson. The
university side of the event, the science fair, had representation from many
colleges and departments on the campus, including the K7UAZ radio club. The
newspaper managed the book fair. The university took good care of the many
volunteers, with bottled water available all weekend, and lunches as well.
With temperatures going as high as 94F/34C on Saturday afternoon, the water
was appreciated by all working at this event.
During Saturday, the K7UAZ booth had two HF stations in operation, another
station demonstrating SDR technologies, and my satellite station. The SDR
station was copying ADS-B data from aircraft flying around southern Arizona,
which was plotted on a map for the crowds to see. The HF stations were busy
making contacts on different bands. The satellite station, which was set up
in front of the booth, was on the air for several passes on Saturday. My
@xxxxxx Twitter feed:
http://twitter.com/WD9EWK
has lots of photos I took throughout the day. I also uploaded a short video
showing the K7UAZ booth, which is available at:
https://www.youtube.com/watch?v=puzNyK1y5zM
Throughout Saturday, 14 satellite contacts were made using 4 different amateur
satellites (AO-7, AO-73, FO-29, SO-50) and the International Space Station,
with stations across the USA and Mexico. The satellite activity started with
an SO-50 pass just before the official start of the event at 9.30am (1630
UTC), and wrapped up with an FO-29 pass in the final half-hour. One contact
was
made using the ISS packet digipeater, between WD9EWK and Craig N6RSX in
southern California, by exchanging APRS messages just before noon (1900 UTC).
With the buildings and the intense RF environment around the university, my
windows for these passes were no more than 5 to 7 minutes per pass. Sorry if
I was not able to work you during Saturday.
I had uploaded the contacts I made on Saturday to Logbook of the World, but
there was an error in that upload. I will fix that tonight, and do another
upload. In addition to LOTW, I will have QSL cards available for those who
want that form of confirmation. Please e-mail me with the QSO details, and I
will mail a card out to you if you are in my log. It is not necessary to first
send me a QSL card or SASE to get my QSL card.
Unfortunately, due to my schedule, I was not able to stay in Tucson for the
Sunday half of the event. The K7UAZ club reported the same sort of crowds on
Sunday at their booth, and for the event in general. Local media reports are
stating the organizers estimated the attendance for this event at
approximately 130,000 for the weekend. I have no reason to doubt that count,
given the crowds I saw all day on Saturday.
Many thanks to Kirk Krentzel N7VGJ and the K7UAZ club for inviting AMSAT to
be a part of this fun weekend. With so many people, this was a great way to
show off amateur radio, and in particular this corner of our hobby. Next
year's event is scheduled for 12-13 March 2016, and I hope to be there and
representing AMSAT for the entire weekend.
73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
------------------------------
Message: 6
Date: Mon, 16 Mar 2015 18:49:25 -0500
From: Stefan Wagener <wageners@xxxxx.xxx>
To: amsat-bb@xxxxxx.xxx
Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] AMSAT at 2015 ScienceCity/Tucson Festival of
Books - report
Message-ID:
<CAKu8kHATKYd89ecoD_=7fjqPX+FdvB0_GcmhyHuMiCxi8z4G9Q@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Thank you Pat,
very nice report and great work. Much appreciated!
Stefan
On Mon, Mar 16, 2015 at 3:29 PM, Patrick STODDARD (WD9EWK/VA7EWK) <
amsat-bb@xxxxxx.xxx> wrote:
> Hi!
>
> AMSAT was part of the K7UAZ Amateur Radio Club's booth at the 2015 Science
> City/Tucson Festival of Books, which combined a book fair with a science
> fair on the University of Arizona campus in Tucson last weekend. AMSAT
> was present on Saturday. A local radio club, the Oro Valley Amateur Radio
> Club
> (W0HF), was there all weekend. This event is a joint effort between the
> University of Arizona and the Arizona Daily Star newspaper in Tucson. The
> university side of the event, the science fair, had representation from
> many
> colleges and departments on the campus, including the K7UAZ radio club. The
> newspaper managed the book fair. The university took good care of the many
> volunteers, with bottled water available all weekend, and lunches as well.
> With temperatures going as high as 94F/34C on Saturday afternoon, the water
> was appreciated by all working at this event.
>
> During Saturday, the K7UAZ booth had two HF stations in operation, another
> station demonstrating SDR technologies, and my satellite station. The SDR
> station was copying ADS-B data from aircraft flying around southern
> Arizona,
> which was plotted on a map for the crowds to see. The HF stations were busy
> making contacts on different bands. The satellite station, which was set up
> in front of the booth, was on the air for several passes on Saturday. My
> @xxxxxx Twitter feed:
>
> http://twitter.com/WD9EWK
>
> has lots of photos I took throughout the day. I also uploaded a short video
> showing the K7UAZ booth, which is available at:
>
> https://www.youtube.com/watch?v=puzNyK1y5zM
>
> Throughout Saturday, 14 satellite contacts were made using 4 different
> amateur
> satellites (AO-7, AO-73, FO-29, SO-50) and the International Space Station,
> with stations across the USA and Mexico. The satellite activity started
> with
> an SO-50 pass just before the official start of the event at 9.30am (1630
> UTC), and wrapped up with an FO-29 pass in the final half-hour. One
> contact was
> made using the ISS packet digipeater, between WD9EWK and Craig N6RSX in
> southern California, by exchanging APRS messages just before noon (1900
> UTC).
> With the buildings and the intense RF environment around the university, my
> windows for these passes were no more than 5 to 7 minutes per pass. Sorry
> if
> I was not able to work you during Saturday.
>
> I had uploaded the contacts I made on Saturday to Logbook of the World, but
> there was an error in that upload. I will fix that tonight, and do another
> upload. In addition to LOTW, I will have QSL cards available for those who
> want that form of confirmation. Please e-mail me with the QSO details, and
> I
> will mail a card out to you if you are in my log. It is not necessary to
> first
> send me a QSL card or SASE to get my QSL card.
>
> Unfortunately, due to my schedule, I was not able to stay in Tucson for the
> Sunday half of the event. The K7UAZ club reported the same sort of crowds
> on
> Sunday at their booth, and for the event in general. Local media reports
> are
> stating the organizers estimated the attendance for this event at
> approximately 130,000 for the weekend. I have no reason to doubt that
> count,
> given the crowds I saw all day on Saturday.
>
> Many thanks to Kirk Krentzel N7VGJ and the K7UAZ club for inviting AMSAT to
> be a part of this fun weekend. With so many people, this was a great way to
> show off amateur radio, and in particular this corner of our hobby. Next
> year's event is scheduled for 12-13 March 2016, and I hope to be there and
> representing AMSAT for the entire weekend.
>
> 73!
>
>
>
>
>
> Patrick WD9EWK/VA7EWK
> http://www.wd9ewk.net/
> _______________________________________________
> 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://amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 7
Date: Mon, 16 Mar 2015 20:05:41 -0400
From: Pavel Milanes Costa <co7wt@xxxxxx.xx.xx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Moxon on top a Baofeng UV-5R for 70cm experiment
Message-ID: <55076FD5.3030905@xxxxxx.xx.xx>
Content-Type: text/plain; charset=utf-8; format=flowed
Hi to all.
Yesterday I was evaluating the construction of a small antenna for
portable use on top of the Baofeng UV-5R... at the end I finished with
two choices CJU vs moxon for 70cm handheld
After some modeling I choose the moxon over the CJU because:
- Smaller
- Less wire
- Less weight
- Less stress for the connector
- Just ~0.6 dB down vs the CJU
- By far better F/B ratio
After completion of the first "prototype"...
I successfully heard the CW beacon of Jugnu, CO-57, CO-58, PRISM and others.
The fire test will be tonight on SO-50, I know now I will copy ok, but
the challenge is eliminate the desense of having two yaguis on a cross boom.
I will test the moxon handheld on RX (UHF) and a Jpole for the 2m uplink
with 5W of a handheld.
I have not measured the SWR of the moxon, but with the simulation the
measures are not "that critical" for getting a less than 1:2 of SWR over
the entire 70cm band (1:3 bandwidth is about 16 Mhz)
The moxon "experiment" is just ~25 cm width and ~15 cm height (may be
smaller also, the minimal height is ~10cm + connector) over the Baofeng
UV-5R, there is no much stress on the connector.
I used a SMA to BNC adapter (the kind with a rim to fit tight to the
radio body) and then a clamp on BNC (male) with a bronze tube as coaxial
shield/boom of the antenna.
Wish me luck with the desense problem...
73
--
M.Sc. Pavel Milanes Costa, CO7WT
SYSOP Nodo Gateway CO9JAZ
Ciudad de Camag?ey, Camag?ey, Cuba.
Cell: (+53) 53-847819
------------------------------
Message: 8
Date: Mon, 16 Mar 2015 17:37:21 -0700
From: Richard Tejera <Saguaroastro@xxx.xxx>
To: Pavel Milanes Costa <co7wt@xxxxxx.xx.xx>, 'AMSAT'
<amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Moxon on top a Baofeng UV-5R for 70cm
experiment
Message-ID: <q122quq81eruyf5mc0yrvflp.1426552641457@xxxxx.xxxxxxx.xxx>
Content-Type: text/plain; charset=utf-8
Pavel,
Here is a link to a program as m called MOXGEN. It will calculate the
dimensions for a moxon given the frequency &wire size. Once done it'll
generate an EZ-NEC model for the antenna.
The model should give you a good idea of the gain, beamwidth & front to back
http://www.moxonantennaproject.com/design.htm
I'd be interested I what it tells you.
73
Rick
K7TEJ
On March 16, 2015, at 17:05, Pavel Milanes Costa <co7wt@xxxxxx.xx.xx> wrote:
Hi to all.
Yesterday I was evaluating the construction of a small antenna for
portable use on top of the Baofeng UV-5R... at the end I finished with
two choices CJU vs moxon for 70cm handheld
After some modeling I choose the moxon over the CJU because:
- Smaller
- Less wire
- Less weight
- Less stress for the connector
- Just ~0.6 dB down vs the CJU
- By far better F/B ratio
After completion of the first "prototype"...
I successfully heard the CW beacon of Jugnu, CO-57, CO-58, PRISM and others.
The fire test will be tonight on SO-50, I know now I will copy ok, but
the challenge is eliminate the desense of having two yaguis on a cross boom.
I will test the moxon handheld on RX (UHF) and a Jpole for the 2m uplink
with 5W of a handheld.
I have not measured the SWR of the moxon, but with the simulation the
measures are not "that critical" for getting a less than 1:2 of SWR over
the entire 70cm band (1:3 bandwidth is about 16 Mhz)
The moxon "experiment" is just ~25 cm width and ~15 cm height (may be
smaller also, the minimal height is ~10cm + connector) over the Baofeng
UV-5R, there is no much stress on the connector.
I used a SMA to BNC adapter (the kind with a rim to fit tight to the
radio body) and then a clamp on BNC (male) with a bronze tube as coaxial
shield/boom of the antenna.
Wish me luck with the desense problem...
73
--
M.Sc. Pavel Milanes Costa, CO7WT
SYSOP Nodo Gateway CO9JAZ
Ciudad de Camag?ey, Camag?ey, Cuba.
Cell: (+53) 53-847819
_______________________________________________
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://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 9
Date: Mon, 16 Mar 2015 22:50:35 -0400
From: Pavel Milanes Costa <co7wt@xxxxxx.xx.xx>
To: Richard Tejera <Saguaroastro@xxx.xxx>, 'AMSAT'
<amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Moxon on top a Baofeng UV-5R for 70cm
experiment
Message-ID: <5507967B.80608@xxxxxx.xx.xx>
Content-Type: text/plain; charset=utf-8; format=flowed
Yes, that's the tool for the job.
That was my starting point, then with mmana and nec I made some
adjustments on the design, cosmetics adjustments...
The final result is few mm more or less against the generated by moxgen...
A few minutes ago I tested the antenna on the SO-50 pass... 56 degrees
pass here, among others I heard K8YSE, UE1FG/MM, K?8KW, K4FEG.
RX: Success, strong and clear signal till LOS...
TX: a real failure, STRONG desense, I think it's problem of the "cheap"
RX radio...
Setup here: RX Baofeng UV-5R with the moxon on top, almost ZERO coax
length, TX Feidaxing FD 268A 5/1 W with coax to a Jpole with almost 10m
of RG-213 Coax... (+ 1m of soft RG-58 pitgail from the radio to the RG-213)
The Jpole is 5 meters away and about 2 meters above my head.
No matter if I use 1 or 5 Watts, once I press PTT the baofeng goes deaf
and only noise is heard with my scrambled voice on it (this voice is not
from the sat)
This can be the 3rd harmonic of 2m, but it's normal to get this behavior
with the baofeng or other radios?
What can I do for improve/solve this situation?
A low pass filter (LPF) for 2m right on the output of the TX radio?
The Baofeng is the only option here for RX on 70cm... this is driving me
crazy...
73
El 16/03/15 a las 20:37, Richard Tejera escribi?:
> Pavel,
>
> Here is a link to a program as m called MOXGEN. It will calculate the
dimensions for a moxon given the frequency &wire size. Once done it'll
generate an EZ-NEC model for the antenna.
>
> The model should give you a good idea of the gain, beamwidth & front to back
>
> http://www.moxonantennaproject.com/design.htm
>
> I'd be interested I what it tells you.
>
> 73
> Rick
> K7TEJ
>
>
>
> On March 16, 2015, at 17:05, Pavel Milanes Costa <co7wt@xxxxxx.xx.xx> wrote:
>
> Hi to all.
>
> Yesterday I was evaluating the construction of a small antenna for
> portable use on top of the Baofeng UV-5R... at the end I finished with
> two choices CJU vs moxon for 70cm handheld
>
> After some modeling I choose the moxon over the CJU because:
> - Smaller
> - Less wire
> - Less weight
> - Less stress for the connector
> - Just ~0.6 dB down vs the CJU
> - By far better F/B ratio
>
> After completion of the first "prototype"...
>
> I successfully heard the CW beacon of Jugnu, CO-57, CO-58, PRISM and others.
>
> The fire test will be tonight on SO-50, I know now I will copy ok, but
> the challenge is eliminate the desense of having two yaguis on a cross boom.
>
> I will test the moxon handheld on RX (UHF) and a Jpole for the 2m uplink
> with 5W of a handheld.
>
> I have not measured the SWR of the moxon, but with the simulation the
> measures are not "that critical" for getting a less than 1:2 of SWR over
> the entire 70cm band (1:3 bandwidth is about 16 Mhz)
>
> The moxon "experiment" is just ~25 cm width and ~15 cm height (may be
> smaller also, the minimal height is ~10cm + connector) over the Baofeng
> UV-5R, there is no much stress on the connector.
>
> I used a SMA to BNC adapter (the kind with a rim to fit tight to the
> radio body) and then a clamp on BNC (male) with a bronze tube as coaxial
> shield/boom of the antenna.
>
> Wish me luck with the desense problem...
>
> 73
>
------------------------------
Subject: Digest Footer
_______________________________________________
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 member? Join now to support the amateur satellite program!
http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
End of AMSAT-BB Digest, Vol 10, Issue 89
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