Antenna Analyzer Basics - K7AGE
Antenna Analyzer Basics - K7AGE
K7AGE always presents interesting topics with a good style.
Enjoy!
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Update - Maricopa New Ham Net - Update
Maricopa New Ham Net
The Maricopa New Ham Net has a rich history in the Valley.
Originally founded by Terry Starks, KE7LPG (SK), this net has helped new hams - as well as experienced hams - learn and grow in our hobby. (Note: Terry's call sign is now assigned to a family member.)
Here are the details of this fine net:
When: Thursdays, 7pm ¨C 8pm
Where: 440.375 MHz (+) PL 100 South Mountain
Description: ATTENTION: This popular - and highly valued - net has moved to another repeater/system and is no longer at the ARA MetroLink System.
Beginning on Thursday, July 16th, the new home of the net is 440.375 MHz, Positive Shift (+5 MHz), PL (CTCSS) 100 Hz.
Net Control Operators - John, KI7PPW and Adam, K7KBD
Net Manager - Lee, N7LP
Repeater Sponsor - Ron, AJ7T
You can find this net and many more at the Queen Creek Amateur Radio Club's Calendar:
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Re: Listen in On PC/Laptop or Smart Device
Worth repeating....(yes, there is a pun in there)
Hi Folks,
Don't have a radio or scanner but you would like to listen to your ham community? (By
the way, "listening in" is an excellent way to learn how to converse on
the radio while non-hams are studying for their license exam.) No
worries! You can listen to some of the most active repeaters in the
Valley and beyond by navigating to one of these links with your browser.
If you like what you hear, bookmark it! You can also download scanner apps to your Android or iOS device. W7ARA White Tanks Repeater:?
W7ARA Phoenix Metrolink System:
Ocotillo / STV Repeater:?
W0NWA Pinnacle Peak:
Eastern Arizona ARS Repeater System EAARS:
---------------------------------------------------------------------------------------------------------------------------
If
you want to install a very good radio scanner app on your smartphone or
tablet, Radio Scanner by Gordon Edwards is very good (and free!):
For Android:
For iOS:
As always, I welcome feedback.
Regards,
Joe, N2QOJ
Joe Sammartino 24/7: ?480.270.4563 Mobile: ?480.381.2993
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Test Sessions
There are usually testing opportunities all over the Valley. Most require pre-registration. However, given the state of things today, most testing sessions have been put on hold for the foreseeable future.
There are a few exceptions, thankfully!
The Chandler Ham Radio Club - - will be hosting a test session in August. Visit their website for details and contact one of their club officers.
There are a couple of hams in Mesa that have been providing this service (Thank you!) over the last few months by planning and executing in-person test sessions with social distancing measures.
You can participate in one of these sessions in Mesa once they have enough applicants for a test session. Just contact Chuck, W7CBR, or Sue, W7SKH, to let him know you would like to participate in the next test event.
Chuck - W7CBR Sue - W7SKH
To make the process easier, please visit the FCC Universal Licensing System web site to register with the FCC and obtain your official FCC Registration Number, known as "FRN", prior to visiting your chosen test site:
And we also now have remote test sessions:
Regards,
Joe, N2QOJ
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Looking for. 7.0 Cu. Ft. Chest freezer for your cow?
We finally got some in at my HD.
$229
They won't last long.
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New ARRL Podcast - The Eclectic Tech - Episode 11
New ARRL Podcast - The Eclectic Tech - Episode 11
The ARRL began a new podcast and it is hosted by Steve Ford, WB8IMY.
The Eclectic Tech podcast brings news, interviews,
and commentary about technology and science -- all with an amateur radio
twist.
This eleventh episode has the following topics:? Shortwave Radiogram, remote receivers, getting more from PSKreporter Stream:
As always, feedback is welcome.
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QCECG weekly training net - 7/5/2020 @ 8 PM (2000)
QCECG weekly training net - 7/5/2020 @ 8 PM (2000)
Check in and let us know how you are doing.
8 pm at 449.325 Mhz PL 100.0 Hz. - All welcome!
Listen over the Internet at
Check in via EchoLink Node 185734, N2QOJ-R. If you need access, send N2QOJ a PM
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Maricopa New Ham Operators NET
Maricopa New Ham Operators NET When: Every Thursday, 7pm ¨C 8pm Where: Metrolink Repeaters Details: Great Net for New (and all other) Hams. Sometimes Host: John, KI7PPW Shaw Butte: 147.24(+) (162.2 PL Tone) - Metro Link Hub
Mt Ord: 146.92(-) (162.2 PL Tone)
Scottsdale Air Park: 146.76(-) (162.2 PL Tone)
Usery Pass: 146.86(-) (162.2 PL Tone)
Mingus Mountain: 146.82(-) (162.2 PL Tone)
Daisy Mountain repeater: 448.375(-) (100.0 PL Tone)
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Mesa R U Prepared Weekly HAM Radio Net
Mesa R U Prepared Weekly HAM Radio Net Wed July 1, 2020 7pm ¨C 7:30pm (MST) Ocotillo Repeater ( 449.325 MHz with a PL Tone of 100 Hz) You can also listen in via streaming audio at:
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Re: Local Electronics Suppliers
THANKS for the links!!
Greg KF6ZEC
Greg & Jill Delezynski S/V Guenevere Our Home Page: http://www.svguenevere.com Our YouTube page: http://www.youtube.com/user/delezynski Our videos are now digital and can be downloaded to any device from Amazon Video;
On Wednesday, June 24, 2020, 10:14:30 AM MST, Joe Sammartino <jsammartino@...> wrote:
Local Electronics Suppliers:(Parts, Components, Cables, Coax, etc.)
WiredCo - - Scottsdale, but is at Ham Fests and other Venues
Tritek Electronics - - Mesa
Circuits Specialists - - Tempe
Brought to you by East Valley Amateur Radio Group at:
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Local Electronics Suppliers
Local Electronics Suppliers:(Parts, Components, Cables, Coax, etc.)
WiredCo - - Scottsdale, but is at Ham Fests and other Venues
Tritek Electronics - - Mesa
Circuits Specialists - - Tempe
Brought to you by East Valley Amateur Radio Group at:
|
New ARRL Podcast - The Eclectic Tech - Episode 10
New ARRL Podcast - The Eclectic Tech - Episode 10
The ARRL began a new podcast and it is hosted by Steve Ford, WB8IMY.
The Eclectic Tech podcast brings news, interviews,
and commentary about technology and science -- all with an amateur radio
twist.
This tenth episode has the following topics:? Sporadic E, antenna modeling, computer espionage, and spray-on antennas. Stream:
As always, feedback is welcome.
Regards, Joe, N2QOJ
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Re: [QCECG] QCECG weekly training net - 6/21/2020 @ 8 PM (2000)
Let's try something a bit different....
If you have a ham radio or technical related question of any type that you would like addressed during the QCECG Net tonight, reply here directly to me - or this Group - and we will be sure to bring it up during the net. Regards, Joe, N2QO
On Sun, Jun 21, 2020 at 12:12 PM Joe Sammartino via <jsammartino= [email protected]> wrote: Happy Father's Day! QCECG weekly training net - 6/21/2020 @ 8 PM (2000) Check in and let us know how you are doing. 8 pm at 449.325 Mhz PL 100.0 Hz. - All welcome! Listen over the Internet at Check in via EchoLink Node 185734, N2QOJ-R. If you need access, send N2QOJ a PM
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QCECG weekly training net - 6/21/2020 @ 8 PM (2000)
Happy Father's Day! QCECG weekly training net - 6/21/2020 @ 8 PM (2000) Check in and let us know how you are doing. 8 pm at 449.325 Mhz PL 100.0 Hz. - All welcome! Listen over the Internet at Check in via EchoLink Node 185734, N2QOJ-R. If you need access, send N2QOJ a PM
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One of the ant's pictured was a HF beam .... not going to do the job.
Gary K7WZX
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off topic, but of interest to most
??? Does anyone know if there is a skilled and
properly equipped knife sharpener service in QC, STV, Gilbert,
possible Chandler?
??? This would be a place that deals with
high-end folding or tactical knives (not table ware).
??? ThanX
KF7E
|
??? In case this rambling thread has gotten
anyone's interest up, here is a very good, well rounded and
not-too-technical explanation about EME.
??? ???
Jim, KF7E
toggle quoted message
Show quoted text
??? Just for fun, I looked for a round trip
path loss for Pluto.Could not find one.
??? The problem is not as simple as '2X the
1 way loss' because nobody seems to know what reflective
qualities, if any, Pluto has (very frequency dependent).
The telemetry from NH is 'easy' as the
hi-gain antenna (operating at X-band, 7-11 GHz) has about 41
dBi gain (with half power points of only 1 degree), and it
transmits with 12W. This means the signal from NH is already
starting out with maybe 260 dB (my rough guess) stronger
signal that an Earth based transmitter's reflected signal
would be.
??? By the time it gets to that 70m (230ft)
dish at the NASA Deep Space network, the signal is SO weak
that only the best cryogenic front ends and state of the art
DSP can recover it.
??? BTW I have heard that the venerable
Apollo era 70M dishes will be replaced by 2025 by arrays of 3
34M antennas In theory, properly phased arrays will
out-perform the 230-ft dishes.
??? I used the 70m antennas a couple times
while on NASA jobs.
??? Unfortunately there was no way to
'whistle in the mic' and say 'Is the frequency in use, KF7E'.
Jim
.
Yep.?
EME, no problem.? 100 Watts and a?single yagi can do it.? A
yagi array, even nicer.? ? ?But E-Pluto-E, is another kettle
of fish.
For
those interested, NASA communicates with the New Horizons
satellite in Plutos neighborhood using a 70 meter dish
antenna on earth, super sensitive receivers, and a 6 meter
dish antenna on the satellite.? So one can pull it off with
a little larger budget and power class than we poor hams
have.? ?:-)? ? :-)? ? ?:-)??
On Fri, Jun 19, 2020 at 6:51
AM AzEagleEye < kd7cac@...> wrote:
For those who may not be
aware, Ned Sterns, AA7A, our local EME guru, has been
very successfully doing EME on 2M for 3 decades.
He has often
presented on the topic at local club meetings, showing
his highly specialized antenna arrays & related
electronics.
73 de Dennis
KD7CAC
Scottsdale, AZ
Court:
??? On 19 Sept 2005,
RU1AA and SM2CEW documented a 2-way EME
QSO on 28 MHz, which is, indeed, HF.
KF7E
?And it really ain't gonna
happen on HF.
![]() ?
??? These
'beams' are all HF below 50 MHz;,.
(almost) all Amateur EME is done
at 50 MHz and (much) higher
frequencies.
??? Project
Diana (circa 1946-47) originally
used 111 MHz, several KW, and the
planar array antenna had over 20
dB gain to generate (and hear) the
moon echo.
??? I'm not sure
about Planet X. It may require
Plan 9 from Outer Space.
KF7E
On 18-Jun-20 14:43, Joe
Sammartino wrote:
I think he means with RF but
that is not the issue.
Look at the beam products offered
- there's the clue.
On
Thu, Jun 18, 2020 at 2:38 PM
Dennis Lawrence < kf7ryx@...>
wrote:
I
do not think we can
bounce our ¡°voice¡± off
the moon but rather an
RF signal.
Dennis
KF7RYX
?
From: [email protected]
[mailto:[email protected]]
On Behalf Of Joe
Sammartino
Sent: Thursday,
June 18, 2020 1:59 PM
To: [email protected]
Subject:
[QueenCreekHams] Beam
Antennas
?
So
who can figure out
the problem with
this email
advertisement from
Justin at MFJ
Enterprises?
Every
correct answer gets a
prize.
Joe,
N2QOJ
?
---------- Forwarded message ---------
From: Justin
<mfj@...>
Date: Mon, Jun
15, 2020 at
12:32 PM
Subject: Beam
Antennas
?
If you've got the space the best possible antenna
for you is the
beam with
monster arrays
made for
DXing.
You receive all messages sent to this group.
View/Reply
Online (#318) | Reply
To Group | Reply
To Sender | Mute
This Topic | New
Topic
Your
Subscription | Contact
Group Owner | Unsubscribe
[kd7cac@...]
|
??? Just for fun, I looked for a round trip
path loss for Pluto.Could not find one.
??? The problem is not as simple as '2X the 1
way loss' because nobody seems to know what reflective
qualities, if any, Pluto has (very frequency dependent).
The telemetry from NH is 'easy' as the hi-gain
antenna (operating at X-band, 7-11 GHz) has about 41 dBi gain
(with half power points of only 1 degree), and it transmits with
12W. This means the signal from NH is already starting out with
maybe 260 dB (my rough guess) stronger signal that an Earth
based transmitter's reflected signal would be.
??? By the time it gets to that 70m (230ft)
dish at the NASA Deep Space network, the signal is SO weak that
only the best cryogenic front ends and state of the art DSP can
recover it.
??? BTW I have heard that the venerable Apollo
era 70M dishes will be replaced by 2025 by arrays of 3 34M
antennas In theory, properly phased arrays will out-perform the
230-ft dishes.
??? I used the 70m antennas a couple times
while on NASA jobs.
??? Unfortunately there was no way to 'whistle
in the mic' and say 'Is the frequency in use, KF7E'.
Jim
.
toggle quoted message
Show quoted text
Yep.?
EME, no problem.? 100 Watts and a?single yagi can do it.? A
yagi array, even nicer.? ? ?But E-Pluto-E, is another kettle
of fish.
For
those interested, NASA communicates with the New Horizons
satellite in Plutos neighborhood using a 70 meter dish antenna
on earth, super sensitive receivers, and a 6 meter dish
antenna on the satellite.? So one can pull it off with a
little larger budget and power class than we poor hams have.?
?:-)? ? :-)? ? ?:-)??
On Fri, Jun 19, 2020 at 6:51
AM AzEagleEye < kd7cac@...> wrote:
For
those who may not be aware, Ned Sterns, AA7A, our local
EME guru, has been very successfully doing EME on 2M for
3 decades.
He has often presented
on the topic at local club meetings, showing his highly
specialized antenna arrays & related electronics.
73 de Dennis KD7CAC
Scottsdale, AZ
Court:
??? On 19 Sept 2005, RU1AA
and SM2CEW documented a 2-way EME QSO on 28
MHz, which is, indeed, HF.
KF7E
?And it really ain't gonna
happen on HF.
![]() ?
??? These 'beams'
are all HF below 50 MHz;,. (almost)
all Amateur EME is done at 50 MHz
and (much) higher frequencies.
??? Project Diana
(circa 1946-47) originally used 111
MHz, several KW, and the planar
array antenna had over 20 dB gain to
generate (and hear) the moon echo.
???
I'm not sure about Planet X. It
may require Plan 9 from Outer
Space.
KF7E
On 18-Jun-20 14:43, Joe Sammartino
wrote:
I think he means with RF but
that is not the issue.
Look at the beam products offered -
there's the clue.
On
Thu, Jun 18, 2020 at 2:38 PM
Dennis Lawrence < kf7ryx@...>
wrote:
I
do not think we can bounce
our ¡°voice¡± off the moon
but rather an RF signal.
Dennis
KF7RYX
?
From: [email protected]
[mailto:[email protected]]
On Behalf Of Joe
Sammartino
Sent: Thursday,
June 18, 2020 1:59 PM
To: [email protected]
Subject:
[QueenCreekHams] Beam
Antennas
?
So
who can figure out the
problem with this
email advertisement
from Justin at MFJ
Enterprises?
Every
correct answer gets a
prize.
Joe,
N2QOJ
?
---------- Forwarded message ---------
From: Justin
<mfj@...>
Date: Mon, Jun
15, 2020 at
12:32 PM
Subject: Beam
Antennas
?
If you've got the space the best possible antenna
for you is the
beam with
monster arrays
made for
DXing.
You receive all messages sent to this group.
View/Reply
Online (#318) | Reply To
Group | Reply To
Sender
| Mute This
Topic
| New Topic
Your
Subscription |
Contact
Group Owner |
Unsubscribe
[kd7cac@...]
|
Yep.? EME, no problem.? 100 Watts and a?single yagi can do it.? A yagi array, even nicer.? ? ?But E-Pluto-E, is another kettle of fish.
For those interested, NASA communicates with the New Horizons satellite in Plutos neighborhood using a 70 meter dish antenna on earth, super sensitive receivers, and a 6 meter dish antenna on the satellite.? So one can pull it off with a little larger budget and power class than we poor hams have.? ?:-)? ? :-)? ? ?:-)??
On Fri, Jun 19, 2020 at 6:51 AM AzEagleEye < kd7cac@...> wrote: For those who may not be aware, Ned Sterns, AA7A, our local EME guru, has been very successfully doing EME on 2M for 3 decades.
He has often presented on the topic at local club meetings, showing his highly specialized antenna arrays & related electronics.
73 de Dennis KD7CAC
Scottsdale, AZ
Court: ??? On 19 Sept 2005, RU1AA and SM2CEW
documented a 2-way EME QSO on 28 MHz, which is, indeed, HF. KF7E
?And it really ain't gonna happen on HF.
![]() ?
??? These 'beams' are all HF below 50
MHz;,. (almost) all Amateur EME is done at 50 MHz and
(much) higher frequencies.
??? Project Diana (circa 1946-47)
originally used 111 MHz, several KW, and the planar
array antenna had over 20 dB gain to generate (and hear)
the moon echo.
??? I'm not sure
about Planet X. It may require Plan 9 from Outer
Space.
KF7E
On 18-Jun-20 14:43, Joe Sammartino wrote:
I think he means with RF but that is not the issue.
Look at the beam products offered - there's the clue.
On Thu, Jun 18, 2020
at 2:38 PM Dennis Lawrence < kf7ryx@...>
wrote:
I
do not think we can bounce our ¡°voice¡± off the
moon but rather an RF signal. Dennis KF7RYX ?
From: [email protected]
[mailto:[email protected]]
On Behalf Of Joe Sammartino
Sent: Thursday, June 18, 2020 1:59 PM
To: [email protected]
Subject: [QueenCreekHams] Beam Antennas ?
So who can
figure out the problem with this email
advertisement from Justin at MFJ
Enterprises?
Every correct
answer gets a prize.
Joe, N2QOJ
?
----------
Forwarded message ---------
From: Justin <mfj@...>
Date: Mon, Jun 15, 2020 at 12:32 PM
Subject: Beam Antennas
?
If you've
got the space the best possible
antenna for you is the beam with
monster arrays made for DXing.
You receive all messages sent to this group.
View/Reply Online (#318) |
Reply To Group
| Reply To Sender
|
Mute This Topic
| New Topic
Your Subscription |
Contact Group Owner |
Unsubscribe
[kd7cac@...]
|
Yes Jim, you?are right.? For EME HF is viable, more difficult, but viable.? No question about it.? ??
My "ain't gonna happen" was for the antenna vendors challenge?of E-Pluto-E (with its (estimated) 144 million times greater requirements than EME).??
?EME? - go for it!!? ?:-)? ?:-)
Court:
??? On 19 Sept 2005, RU1AA and SM2CEW
documented a 2-way EME QSO on 28 MHz, which is, indeed, HF.
KF7E
?And it really ain't gonna happen on HF.
![]() ?
??? These 'beams' are all HF below 50
MHz;,. (almost) all Amateur EME is done at 50 MHz and
(much) higher frequencies.
??? Project Diana (circa 1946-47)
originally used 111 MHz, several KW, and the planar
array antenna had over 20 dB gain to generate (and hear)
the moon echo.
??? I'm not sure
about Planet X. It may require Plan 9 from Outer
Space.
KF7E
On 18-Jun-20 14:43, Joe Sammartino wrote:
I think he means with RF but that is not the issue.
Look at the beam products offered - there's the clue.
On Thu, Jun 18, 2020
at 2:38 PM Dennis Lawrence < kf7ryx@...>
wrote:
I
do not think we can bounce our ¡°voice¡± off the
moon but rather an RF signal.
Dennis
KF7RYX
?
From: [email protected]
[mailto:[email protected]]
On Behalf Of Joe Sammartino
Sent: Thursday, June 18, 2020 1:59 PM
To: [email protected]
Subject: [QueenCreekHams] Beam Antennas
?
So who can
figure out the problem with this email
advertisement from Justin at MFJ
Enterprises?
Every correct
answer gets a prize.
Joe, N2QOJ
?
----------
Forwarded message ---------
From: Justin <mfj@...>
Date: Mon, Jun 15, 2020 at 12:32 PM
Subject: Beam Antennas
?
If you've
got the space the best possible
antenna for you is the beam with
monster arrays made for DXing.
|
?
?
?
|
Is
space really
the final
frontier??
Or can we take
it further
than that?
Hams can
bounce their
voice off of
the moon, how
about Mars or
Pluto or even
Planet X??
Let's take our
ham radio
communications
to the next
biggest
level.?
How?
You get a
giant beam
with a huge
array capable
of talking
further and
mightier than
ever before.?
Can we get
there?
You
will never
know until you
try . . .
|
|
?
?
?
|
Hy-gain
Eleven and
Seven Element
Beams
Cushcraft
and Hy-gain
have the beam
antennas you
need to get
out!? Folks
are always
spending their
big money on
their radios
and their
amplifiers
when the real
effort is
there with an
efficient
antenna
system.? That
is where the
beam antenna
comes in. If
you've got the
room, a beam
antenna? gives
you the best
bang for the
buck.? And
really? the
little bit of
money it costs
is money well
spent.? Check
out these
awesome
antennas!
Check out
the TH-7DX.?
7-elements,
1.5 kW PEP.
10-15-20
Meters. Gives
you the
highest
average gain
of any Hy-Gain
tri-bander!?
Average 8.7
dBi gain with
just a 9.4
square foot
wind area.?
The boom is 24
feet long, the
longest
element is 31
feet.? it
weighs 75 lbs.
It's big
brother is the
TH-11DX. 11-elements.
1.5 kW PEP.
10-12-15-17-20
Meters. The
choice of top
DX-ers.
|
|
?
?
?
Cushcraft Four and Three
Element Beams
A-4S
is a four
element beam
for 10/15/20
Meters. An add-on
kit gets you
40 Meters
also.? The
longest
element is
32.9 feet with
a 18 foot
boom.? It
sports a great
8.9 dBi gain
with a 25 dB
front-to-back.
A-3S is a
three element
beam for
10/15/20
Meters. An
add-on kit
gets you 40
Meters also.
The longest
element is
27.75 feet
with a 14 foot
boom.? Get 8
dB gain with a
25 dB
front-to-back.
?
|
|
?
?
?
|
![]()
|
|
So
you don't have
a lot of space
for a BIG
beam?
?
Let's talk
about small
compact beams
then.
Cushcraft's
MA-6B
gives you six
bands
(20/17/15/12/10/6
Meters with a
bantam-size
beam capable
of up to 5.3
dBi gain!? The
boom is just
7.3 feet and
the longest
element is
just 17 feet.
Or check out
the MA-5B, its
predecessor
for just
10/15/20
Meters. Saves
over $200 if
you don't need
6/12/17
Meters.
Hy-gain's
TH3-JRS is a
healthy
contender!?
3-elements on
10/15/20
Meters.? It
has an average
gain of 8 dBi
and a 25 dB
front-to-back.?
Just a 12 foot
boom and a
longest
element of 27
feet. Tooled
manufacturing
gives you long
lasting
Hy-Gain
durability.
Weighs just 21
lbs. so a
lightweight
tower or roof
tripod can be
used.
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?
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Joe Sammartino
Jill & Greg delezynski