{"id":8116,"date":"2024-09-21T22:16:12","date_gmt":"2024-09-21T20:16:12","guid":{"rendered":"https:\/\/wijnants.info\/fmdx\/?p=8116"},"modified":"2024-11-06T09:23:13","modified_gmt":"2024-11-06T07:23:13","slug":"september-21-2024-dab-preamp","status":"publish","type":"post","link":"https:\/\/wijnants.info\/fmdx\/september-21-2024-dab-preamp\/","title":{"rendered":"September 21 2024 – DAB preamp"},"content":{"rendered":"\n
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\"\"<\/figure>\n\n\n\n
\"\"<\/figure>\n<\/div>\n\n\n\n

With great Indian summer weather and some time to spend on the hobby today some modifications were made.<\/p>\n\n\n\n

My K\u00f6rner 15.11<\/a> performs excellently, especially after the maintenance <\/a>I did last June.
A few weeks ago I had a look at some old mails from Peter K\u00f6rner in which he pointed out the 15.11 coax balun shouldn’t touch the boom directly as this could influence performance negatively.
So I made sure this was fixed, but admittedly I couldn’t find much difference in the 15.11 performance.
Then again I guess this fix won’t hurt performance anyway.<\/p>\n\n\n\n

\"Balun<\/a>
Balun free from boom<\/em><\/strong><\/figcaption><\/figure>\n\n\n\n

Next step was installing a new preamp for the stacked FUBA DAT 307 DAB antennas<\/a>.
I’ve been using the RTLSDR Wideband LNA<\/a> for quite some time and with good results.
Then again I was pointed at the TGN-Technology<\/a> ULNA3018 DAB MK V DAB preamplifier which doesn’t use BIAS-T but an external power inserter<\/a>.<\/p>\n\n\n\n

\"ULNA3018<\/a>
ULNA3018 DAB MK V DAB preamplifier<\/em><\/strong><\/figcaption><\/figure>\n\n\n\n
\"ULNA3018
ULNA3018 DAB MK V DAB preamplifier case<\/em><\/strong><\/figcaption><\/figure>\n\n\n\n

When doing these small upgrades the antenna mast was lowered to almost ground level.
I did some comparing of DAB signal strengths on very local strong muxes with very stable signal levels.
The new ULNA3018 MK V did slightly better than the good old RTLSDR LNA, but only slightly.
So I was rather pleasantly surprised by the performance of this cheap RTLSDR Wideband LNA<\/a>.
With the mast up again the brand new ULNA3018 MKV<\/a> does well with strong overall signal levels.<\/p>\n\n\n\n

\"K\u00f6rner<\/a>
K\u00f6rner 15.11 and FUBA 307 DAB antennas<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"

With great Indian summer weather and some time to spend on the hobby today some modifications were made. My K\u00f6rner 15.11 performs excellently, especially after the maintenance I did last June. A few weeks ago I had a look at some old mails from Peter K\u00f6rner in which he pointed out the 15.11 coax balun… <\/p>\n

Read the full article<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21,14,15,20,17],"tags":[57,117,118,116],"class_list":["post-8116","post","type-post","status-publish","format-standard","hentry","category-ccir","category-dab","category-hardware","category-oirt","category-radio","tag-hardware","tag-preamplifier","tag-tgn-technology","tag-unla3018-mk-v"],"publishpress_future_action":{"enabled":false,"date":"2026-06-02 01:09:12","action":"change-status","newStatus":"draft","terms":[],"taxonomy":"category","extraData":[]},"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/wijnants.info\/fmdx\/wp-json\/wp\/v2\/posts\/8116","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wijnants.info\/fmdx\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wijnants.info\/fmdx\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wijnants.info\/fmdx\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/wijnants.info\/fmdx\/wp-json\/wp\/v2\/comments?post=8116"}],"version-history":[{"count":0,"href":"https:\/\/wijnants.info\/fmdx\/wp-json\/wp\/v2\/posts\/8116\/revisions"}],"wp:attachment":[{"href":"https:\/\/wijnants.info\/fmdx\/wp-json\/wp\/v2\/media?parent=8116"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wijnants.info\/fmdx\/wp-json\/wp\/v2\/categories?post=8116"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wijnants.info\/fmdx\/wp-json\/wp\/v2\/tags?post=8116"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}