This week we spotlight Mark Soeda, WH6OZ.

Aloha!

Below are some photos of my ham radio journey so far.  Some recent activities and projects include building a 2 meter tape measure yagi antenna, receiving SSTV image radio transmissions from the International Space Station, doing a couple SOTA activations, playing with APRS, experimenting with FLDIGI, and speaking to other hams on DMR with my Ailunce HD1.  I was first licensed as WH6FWN and have since changed my callsign.

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Update: February 2019
INTERNATIONAL SPACE STATION – SSTV SIGNAL DECODED
NASA on the Air! The ISS passed over Hawaii transmitting images commemorating 50 years of space exploration. Used my HT on 145.80 to hear its signals and decode the SSTV images using an app that can do PD120 mode on my android phone. This capture isn’t the greatest but considering I was using an HT with a smartphone in a park for my first attempt I can’t complain.

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SSTV signal decoded 

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Update: January 2019
SUMMITS ON THE AIR (SOTA) – KOHELEPELEPE (KH6 / OH-021)
My second SOTA activation was atop Koko Crater Stairs as part of a group expedition that ultimately involved 3 teams, each on a different summit. It was a lot of fun to be doing a coordinated activation with my fellow hams! Thank you to the following folks who made contact with me to make it a successful activation; AH6OO, KH3AE, KH6MOI, KH6EN, KH6DS, WH6NC, AH6VF, WH6FTQ, WH6FUS, WH6I.

Please check out my blog entry on the SOTA website for full recap of the day by clicking the link below:
http://bit.ly/2Sex1rg

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Koko Crater Stairs Trail
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Tracks for old supply rail line to the top
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View from top of Koko Crater Stairs
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Homemade 2 meter 3 element yagi worked like a charm
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Birds eye view of the Koko Crater Activation team on the summit. Photo by NH6AA via Mavic 2 Pro drone.

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Update: December 2018
TAPE MEASURE YAGI
Fun and simple DIY project. I built a great 3 element 2 meter yagi antenna that registered an SWR of around 1.03 on the analyzer. It’s lightweight and can either be hand-held in the field or mounted anywhere.  It can also be taken apart for easy transport and storage.

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Testing my 3 element tape measure yagi.
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Hairpin match using 12 gauge all purpose wire. I haven’t soldered in years so this was a fun project to break in my new kit.
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When not in use it breaks down and rolls up neatly for easy storage or transport.

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Update: September 2018
SUMMITS ON THE AIR (SOTA) – Diamond Head (KH6 / OH-025)
I did my first SOTA activation (as WH6FWN) by hiking up Diamond Head. Thanks to the following hams for their contacts making it a successful activation; W6UNX, KH6MOI, KH6JQD, KH7CX, WH6FWG, and KH6FHI.

Check out my blog entry on the SOTA website describing the day by clicking the link below:
http://bit.ly/2TWj432

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A nice day. View from the top of Diamond Head looking down on Kapiolani Park, Waikiki, and Honolulu.
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Strictly a VHF/UHF mission using an HT and a roll up antenna. Improvised using my trekking pole to hang up my antenna (which was not ideal but it got the job done).

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APRS WITH A BAOFENG HT
Connecting my Baofeng BF F8HP with my old Samsung Galaxy S5 to use APRS.

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Taking APRS out for a spin

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FLDIGI WITH AN HT
I tested using FLDIGI on my computer with a prerecorded audio transmission I found on YouTube. After determining that this works, I later tested transmitting and receiving MT63 transmissions with WH6FTQ by holding my HT near my computer speaker and manually keying the PTT.

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It ain’t fancy, but it worked!

Thanks for checking out my page and follow me at @hamradio808 on social media if you are on Twitter or Instagram.

Mahalo and 73!
WH6OZ

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