{"id":100,"date":"2024-03-22T17:57:08","date_gmt":"2024-03-22T16:57:08","guid":{"rendered":"https:\/\/la6cda.no\/?p=100"},"modified":"2024-03-23T18:17:32","modified_gmt":"2024-03-23T17:17:32","slug":"10-mhz-referanse","status":"publish","type":"post","link":"https:\/\/la6cda.no\/?p=100","title":{"rendered":"10 MHz referanse"},"content":{"rendered":"\n

Oppdatering:<\/p>\n\n\n\n

N\u00e5 har jeg latt den st\u00e5 p\u00e5 over natten. <\/p>\n\n\n\n

Den lange koaks kabelen g\u00e5r til gps antennen og boksen st\u00e5r inne. Da kan oscilloskopet kobles rett p\u00e5 boksen. <\/p>\n\n\n\n

Jeg ser referanskrystallet drifter litt s\u00e5 det virker som om den m\u00e5 kj\u00f8res med GPS for \u00e5 holde seg stabil. Til denne prisen s\u00e5 er det greitt. <\/p>\n\n\n\n

\"\"
Enheten selvdeklarerer seg til 0.2 PPB<\/figcaption><\/figure>\n\n\n\n

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

Opprinnelig artikkel:<\/p>\n\n\n\n

Jeg har akkurat f\u00e5tt tak i en GPS justert 10 MHz referanse.<\/p>\n\n\n\n

GPSDO user manual<\/a><\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n
\"\"
Enheten ute for \u00e5 ha mottak av GPS <\/figcaption><\/figure>\n\n\n\n

Under er de f\u00f8rste m\u00e5lingene av 10 MHz signalet og 1 PPS. <\/p>\n\n\n\n

\"\"
10 MHz<\/figcaption><\/figure>\n\n\n\n
\"\"
1,6 V p-p<\/figcaption><\/figure>\n\n\n\n
\"\"
1 PPS<\/figcaption><\/figure>\n\n\n\n
\"\"
1 PPS med ca 1V pulse. <\/figcaption><\/figure>\n\n\n\n

Alt over er m\u00e5lt med et enkelt PicoScope 10 MHz PC Oscilloskop. Jeg skal pr\u00f8ve \u00e5 f\u00e5 sammenlignet denne med en anerkjent 10 MHz referanse. <\/p>\n\n\n\n

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

Oppdatering: N\u00e5 har jeg latt den st\u00e5 p\u00e5 over natten. Den lange koaks kabelen g\u00e5r til gps antennen og boksen st\u00e5r inne. Da kan oscilloskopet kobles rett p\u00e5 boksen. Jeg ser referanskrystallet drifter litt s\u00e5 det virker som om den m\u00e5 kj\u00f8res med GPS for \u00e5 holde seg stabil. Til denne prisen s\u00e5 er det …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18,9],"tags":[],"class_list":["post-100","post","type-post","status-publish","format-standard","hentry","category-pludring","category-radio"],"_links":{"self":[{"href":"https:\/\/la6cda.no\/index.php?rest_route=\/wp\/v2\/posts\/100","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/la6cda.no\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/la6cda.no\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/la6cda.no\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/la6cda.no\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=100"}],"version-history":[{"count":5,"href":"https:\/\/la6cda.no\/index.php?rest_route=\/wp\/v2\/posts\/100\/revisions"}],"predecessor-version":[{"id":108,"href":"https:\/\/la6cda.no\/index.php?rest_route=\/wp\/v2\/posts\/100\/revisions\/108"}],"wp:attachment":[{"href":"https:\/\/la6cda.no\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=100"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/la6cda.no\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=100"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/la6cda.no\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=100"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}