{"id":683,"date":"2021-07-31T09:57:42","date_gmt":"2021-07-31T09:57:42","guid":{"rendered":"https:\/\/www.iw3hvb.it\/?page_id=683"},"modified":"2021-08-01T17:14:54","modified_gmt":"2021-08-01T17:14:54","slug":"tx7eme-rangiroa-tahiti-1296mhz-eme-dxpedition","status":"publish","type":"page","link":"https:\/\/www.iw3hvb.it\/?page_id=683","title":{"rendered":"TX7EME – Rangiroa, Tahiti – 1296MHz EME DXpedition"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n
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Here we go again,<\/p>\n\n\n\n

unfortunately I had to pospone this DX-pedition in june 2020 due to Covid-19 restrictions, but finally I managed to get back on track for 2021.<\/p>\n\n\n\n

Operations will be conducted from the atoll of Rangiroa, some 340 km north east from Tahiti, from august 28th to september 4th.<\/p>\n\n\n\n

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The timeframe seems fairly good, and has been selected in order to ensure the maximum declination, given the short common moon windows with EU.<\/p>\n\n\n\n

I will have a good take off for moonrise, right in front of the ocean, as you can see from the aerial:<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

A new dish has been developed, since the one I used in 3B8 is now sitting in my backyard. Due to the tremendous constraints on weight from the airliners, I’ve decided to downscale the project to 2 mt. Aldo IK3COJ has proven once again he is very effective in building this light dishes.<\/p>\n\n\n\n

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The goal was to have a system that would be light enough to be assembled by a single person, but sturdy to withstand the ocean winds in case of bad weather.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n
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Everything must fit, as usual, in the golf club luggage you see aside, and it fits! <\/figcaption><\/figure>\n\n\n\n

<\/p>\n\n\n\n

\"\"
Here is my first attempts at the moon. <\/figcaption><\/figure>\n\n\n\n

Sun noise is around 6,8 dB against cold sky. Load temp vs. cold sky is around 6,5 dB. First echoes have been seen on waterfall at -20 dB, with 400 W at the feed. Not bad.<\/p>\n\n\n\n

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Here is the almost finished PA. <\/figcaption><\/figure>\n\n\n\n

<\/p>\n\n\n\n

\"\"
PA Backside<\/figcaption><\/figure>\n\n\n\n
\"\"
In service for the first time. Everything smooth. I am so relieved! Eaton Rectifier 1800W, Directional coupler by Ericsson<\/figcaption><\/figure>\n\n\n\n

<\/p>\n\n\n\n

This is the spare radio setup, tested this morning, flawless. Good to go!<\/p>\n\n\n\n

\"\"
Transmitting at 300W: over the sequencer, IDS, Power Out (small instrument)
and Pallet temp \u00b0C.<\/figcaption><\/figure>\n\n\n\n
\"\"
OK1KIR booming, 579 on CW some time later.<\/figcaption><\/figure>\n\n\n\n

——————————————————————————————————————–<\/p>\n\n\n\n

I will update the blog page during the trip, and the log page will be updated daily.<\/p>\n\n\n\n

Best 73. Giulio IW3HVB – TX7EME<\/p>\n","protected":false},"excerpt":{"rendered":"

Here we go again, unfortunately I had to pospone this DX-pedition in june 2020 due to Covid-19 restrictions, but finally I managed to get back on track for 2021. Operations will be conducted from the atoll of Rangiroa, some 340 …<\/p>\n

TX7EME – Rangiroa, Tahiti – 1296MHz EME DXpedition<\/span> Read More »<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"wppr_data":{"cwp_meta_box_check":"No"},"_links":{"self":[{"href":"https:\/\/www.iw3hvb.it\/index.php?rest_route=\/wp\/v2\/pages\/683"}],"collection":[{"href":"https:\/\/www.iw3hvb.it\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.iw3hvb.it\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.iw3hvb.it\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iw3hvb.it\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=683"}],"version-history":[{"count":11,"href":"https:\/\/www.iw3hvb.it\/index.php?rest_route=\/wp\/v2\/pages\/683\/revisions"}],"predecessor-version":[{"id":783,"href":"https:\/\/www.iw3hvb.it\/index.php?rest_route=\/wp\/v2\/pages\/683\/revisions\/783"}],"wp:attachment":[{"href":"https:\/\/www.iw3hvb.it\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=683"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}