{"id":3125,"date":"2022-06-09T17:56:49","date_gmt":"2022-06-09T17:56:49","guid":{"rendered":"https:\/\/www.vhfdx.ro\/?p=3125"},"modified":"2022-06-09T17:56:49","modified_gmt":"2022-06-09T17:56:49","slug":"floarea-de-mina-iaru-microunde-2022","status":"publish","type":"post","link":"https:\/\/www.vhfdx.ro\/index.php\/ro\/2022\/06\/09\/floarea-de-mina-iaru-microunde-2022\/","title":{"rendered":"Floarea de Min\u0103 & Iaru microunde 2022"},"content":{"rendered":"
\n

…sau prima aventur\u0103 in 13cm..<\/h2>\n\n\n\n

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

Ideea de a participa \u00een concursul de microunde s-a conturat atunci c\u00e2nd m-am decis s\u0103 comand transverterul de 13cm de la SG-Labs care a sosit cum a fost promis, \u00een 2 s\u0103pt\u0103m\u00e2ni. Dup\u0103 ce a sosit transverterul am scos din debara modulul de amplificare (RFCore RCA2327H53B) primit mai de mult de la prieteni \u0219i s\u0103 realizez interconexiunile necesare.. Zis \u0219i f\u0103cut (mar\u021bi, \u00eenainte de concurs). La prima pornire am observat c\u0103 modulul nu are curent de repaos aproape deloc, a\u0219a c\u0103 desf\u0103c\u00e2ndu-l mi-am dat seama c\u0103 tranzistoarele finale au scurt pe por\u021bi.. Pu\u021bin dezam\u0103git, dar prietenii nu te las\u0103 la greu. Au zis c\u0103 dac\u0103 merg la Timi\u0219oara, primesc altul, evident m\u0103surat din timp.. A\u0219a c\u0103 vineri diminea\u021ba m-am pus pe drum, \u0219i \u00een 3 ore \u0219i 30 de minute eram deja la Utvin, KN05NR. Dup\u0103 un gr\u0103tar copios, ne-am pus s\u0103 m\u0103sur\u0103m atenu\u0103ri, deoarece modulul amplificator necesit\u0103 de maxim 5dBm pe intrare.. Zis si f\u0103cut, combinat coaxial RG142 cu atenuator de 30dB \u0219i \u00een sf\u00e2r\u0219it am ajuns la nivelul dorit.. Toate bune p\u00e2n\u0103 aici.<\/p>\n\n\n\n

S\u00e2mb\u0103t\u0103 diminea\u021ba am plecat spre sediul YO2KQT din Timi\u0219oara, s\u0103 demont\u0103m o parabol\u0103 California Grid nefolosit\u0103. Pu\u021bin cam ruginit\u0103, dar “ata ete”. Dup\u0103 aceea ne-am dus si la YO2NAA s\u0103 ne uit\u0103m la noul s\u0103u pilon telescopic, \u0219i totodat\u0103 s\u0103 m\u0103sur\u0103m antena grid pe un VNA de calitate. SWR 1:1.4.. nu e perfect, dar s\u0103 sper\u0103m c\u0103 va fi ok. Dup\u0103 al\u021bi 30km am ajuns la loca\u021bia final\u0103 Jimbolia, KN05IS, unde dup\u0103 c\u00e2teva discu\u021bii cu YO2LLZ ne-am decis unde s\u0103 mont\u0103m antena.. Deoarece amplificatorul si transverterul nu este \u00eenc\u0103 montat \u00een cutie impermeabil\u0103, principalul obiectiv a fost ca cablul \u00eentre anten\u0103 \u0219i transverter s\u0103 fie c\u00e2t mmai scurt. P\u00e2n\u0103 la urm\u0103 a ajuns pe o \u021beav\u0103 proprie cu un rotor G1000, l\u00e2ng\u0103 cl\u0103direa de club la aprox. 9m \u00een\u0103l\u021bime cu cablu LCF 1\/2″ de 5m.. Nu perfect, dar acceptabil. Astfel transverterul si finalul a ajuns \u00een geamul camerei radio.<\/p>\n\n\n\n

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

Antena de 23cm a r\u0103mas pe pozi\u021bia veche, tot pe la aproximativ 9m \u00een\u0103l\u021bime, urmat de cablu 7\/8″.<\/p>\n\n\n\n

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

\u00cen 2m \u0219i 70cm a operat Epy, YO2LLZ ajutat seara de mine c\u00e2nd pentru 23\/13 nu mai erau avioane.. <\/p>\n\n\n\n

\u00cen 23cm \u0219i 13cm am operat exclusiv eu, majoritatea leg\u0103turilor fiind realizate \u00een CW.<\/p>\n\n\n\n

Rezultatul acceptabil \u00een toate benzile.<\/p>\n\n\n\n

144 MHz:<\/strong> 100 QSO, 36990 puncte, ODX: 721 km, 46 sta\u021bii YO.. participare destul de bun\u0103 \u00een YO.<\/p>\n\n\n\n

432 MHz: <\/strong>39 QSO, 17945 puncte, ODX 771 km, 11 sta\u021bii YO.. Aici este extrem de greu de lucrat sta\u021bii YO dac\u0103 nu se fac skeduri……..<\/p>\n\n\n\n

1296 MHz:<\/strong> 55 QSO, 22458 puncte, ODX 781 km, 6 sta\u021bii YO..<\/p>\n\n\n\n

\u0219i cirea\u0219a de pe tort,<\/p>\n\n\n\n

2320 MHz:<\/strong> 26 QSO (8 DXCC), 10920 puncte, ODX 673 km. 3 sta\u021bii YO (YO9AYN\/P, YO5TP\/P, YO8RHM). Mare lips\u0103 a sta\u021biilor din LZ pe chat.. sigur am fi reu\u0219it c\u00e2teva leg\u0103turi…<\/p>\n\n\n\n

Impresie bun\u0103 asupra benzii de 13cm.. Banda este foarte lini\u0219tit\u0103, cu excep\u021bia a 2 direc\u021bii, unde zgomotul cre\u0219te la S9 (comparat cu S1). puterea radiat\u0103 este mai mare dec\u00e2t in 23cm, leg\u0103turile se realizeaz\u0103 mai u\u0219or si via troposcatter \u0219i via AP. Din p\u0103cate nu mul\u021bi au aceast\u0103 band\u0103, \u0219i o bun\u0103 parte din sta\u021biile QRV au putere destul de mic\u0103, deseori insuficient\u0103 pentru o leg\u0103tur\u0103 AP..<\/p>\n\n\n\n

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

Vreau s\u0103 \u00eenchei cu h\u0103r\u021bile din toate cele 4 benzi.. \u0219i la reauzire \u00een iulie!<\/p>\n\n\n\n

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

\n
\"\"
70cm<\/figcaption><\/figure>\n\n\n\n
\"\"
13cm<\/figcaption><\/figure>\n\n\n\n
\"\"
23cm<\/figcaption><\/figure>\n\n\n\n
\"\"
2m<\/figcaption><\/figure>\n<\/figure>\n\n\n\n

73′<\/p>\n\n\n\n

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

YO5LD<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

…sau prima aventur\u0103 in 13cm.. Ideea de a participa \u00eenRead More<\/i><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[113],"tags":[],"class_list":["post-3125","post","type-post","status-publish","format-standard","hentry","category-impresii-concursuri"],"_links":{"self":[{"href":"https:\/\/www.vhfdx.ro\/index.php\/wp-json\/wp\/v2\/posts\/3125","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vhfdx.ro\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vhfdx.ro\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vhfdx.ro\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vhfdx.ro\/index.php\/wp-json\/wp\/v2\/comments?post=3125"}],"version-history":[{"count":4,"href":"https:\/\/www.vhfdx.ro\/index.php\/wp-json\/wp\/v2\/posts\/3125\/revisions"}],"predecessor-version":[{"id":3134,"href":"https:\/\/www.vhfdx.ro\/index.php\/wp-json\/wp\/v2\/posts\/3125\/revisions\/3134"}],"wp:attachment":[{"href":"https:\/\/www.vhfdx.ro\/index.php\/wp-json\/wp\/v2\/media?parent=3125"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vhfdx.ro\/index.php\/wp-json\/wp\/v2\/categories?post=3125"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vhfdx.ro\/index.php\/wp-json\/wp\/v2\/tags?post=3125"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}