[SECC] Fwd: [DDCC] Save the Date: DDCC Zoom™ Presentation -- Takeoff Angles & HF Terrain Analysis (HFTA) by Kevan Nason N4XL
Kevan Nason
knason00 at gmail.com
Thu Nov 26 19:28:06 EST 2020
If you operate HF and do not understand take off angles and that local
terrain around you can affect them, your signal strength at the other end
of the path is the result of pure luck. It is particularly important to
Contesters and DXers. If you already know that, then there likely isn't
anything new here for you. If you've never seen what High Frequency Terrain
Analysis (HFTA) can tell you, then please join in. The presentation
discusses how I made a decision between a 50 and 70 foot tower, but is also
applicable in deciding whether it's worthwhile to try and get that 35 foot
high dipole further up in a tree or what spacing to use for stacked
monobanders. Wouldn't it be nice to have a clue ahead of time before you
tried? YT and HFTA were once considered by many to be just a mildly
interesting prediction tool. It has become so trusted that some are using
it to analyze expected HF performance before buying their dream home. You
may never use HFTA, but general knowledge of how things work tends to help
success in many subtle ways.
Kevan N4XL
---------- Forwarded message ---------
From: Dr. Larry S. Anderson NN5O <nn5olarry at gmail.com>
Date: Thu, Nov 26, 2020 at 1:35 PM
Subject: [DDCC] Save the Date: DDCC Zoom™ Presentation -- Takeoff Angles &
HF Terrain Analysis (HFTA) by Kevan Nason N4XL
To:
Deep Dixie Contest Club (DDCC) members and special guests—
*SAVE THE DATE!!* Thursday, December 3 @ 7:00 PM Central *STANDARD* Time
—> 0100z
*Kevan Nason, N4XL*, by popular demand is returning as our speaker for the
forthcoming *Zoom™ Learning Series* program. *Topic*: *Takeoff Angles &
HF Terrain Analysis (HFTA)*. So, please pass the word far and wide to make
sure we have lots of contesters joining us for what will surely be an
informative and invigorating presentation on elements of weather and
propagation to enhance our contesting results.
Specific details are shown below.
PLEASE invite all radio enthusiasts to join us for this presentation! Pass
the word around. Post it to all your club members!
~~~~~~~~~~~~
*DETAILS:*
Date: *Thursday, December 3, 2020 *(even though the meeting begins on Dec
4, according to Zulu time)
Time: *7:00 PM Central STANDARD Time. That will be 0030z.*
Speaker: *Kevan Nason N4XL*
Topic: *Takeoff Angles & HFTA (HF Terrain Analysis)*
Description: *If you want to have a strong signal at the other end of your
path, then radio wave take-off angles are arguably in the top two or three
things to understand about your antenna system. After discovering that
fact, Kevan, N4XL, asked himself how high should his HF antenna be? Higher
is better, right? Usually, but not always. Higher towers mean more cost
and are more complexity. It also turns out higher does not always give you
the strongest signal. Join Kevan as he shares information learned while
making that important station design decision*
~~~~~~~~~~~~
Here is the official invitation that you may use to connect to our Zoom™
meeting room:
Larry Anderson is inviting you to a scheduled Zoom meeting.
Topic: *Deep Dixie CC Zoom™ Presentation: Takeoff Angles & HFTA*
Time: *Dec 3, 2020 07:00 PM Central STANDARD Time (US and Canada) — 0030z*
Join Zoom Meeting
https://us02web.zoom.us/j/9087926776?pwd=dE9sNnRvZWpyQ3RuYmNuUDZpbHIxQT09
Meeting ID: 908 792 6776
Passcode: *ddcc2020*
One tap mobile
+19292056099,,9087926776#,,,,,,0#,,54166495# US (New York)
+13017158592,,9087926776#,,,,,,0#,,54166495# US (Germantown)
Dial by your location
+1 929 205 6099 US (New York)
+1 301 715 8592 US (Germantown)
+1 312 626 6799 US (Chicago)
+1 669 900 6833 US (San Jose)
+1 253 215 8782 US (Tacoma)
+1 346 248 7799 US (Houston)
Meeting ID: 908 792 6776
Passcode: 54166495
Find your local number: https://us02web.zoom.us/u/kcALgHNEAi
~~~~~~~~~~~~
As you await Kevan's presentation, feel free to send any questions,
comments, suggestions related to this topic.
PLEASE pass this information along to your friends in other radio clubs
around the world. Deep Dixie CC extends an hospitable welcome to amateurs
living anywhere on the globe—or beyond!
~~~~~~~~~~~~
[To view past Deep Dixie CC presentations on YouTube, go to
https://www.youtube.com/channel/UCHSrV6IRXBbXGZn40Z8CFYw ]
73,
*—Larry NN5O (ex-WB5EIN)*
President, Deep Dixie Contest Club
visit our Deep Dixie Contest Club web site
http://deepdixiecc.org
------------------------------------------------------------
*Dr. Larry S. Anderson*, Founder/CEO
*National Center for Technology Planning*
P. O. Box 2393 -- Tupelo, MS 38803
662.321.0677 (Cell)
***APPLE DISTINGUISHED EDUCATOR* * CLASS OF 2000 **
Assoc. Prof. (Ret.), Mississippi State University
------------------------------------------------------------
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