{"id":7929,"date":"2024-08-04T09:39:55","date_gmt":"2024-08-04T07:39:55","guid":{"rendered":"https:\/\/wijnants.info\/fmdx\/?page_id=7929"},"modified":"2024-08-04T13:22:32","modified_gmt":"2024-08-04T11:22:32","slug":"korner-15-11-specs","status":"publish","type":"page","link":"https:\/\/wijnants.info\/fmdx\/korner-15-11-specs\/","title":{"rendered":"K\u00f6rner 15.11 specs"},"content":{"rendered":"\n

At last – a new high performance FM antenna for serious DX or professional use: The FM15.11<\/strong><\/p>\n\n\n\n

\"K\u00f6rner<\/a>
K\u00f6rner 15.11<\/figcaption><\/figure>\n\n\n\n

Superior performance for size \u2013 and highest quality construction!
High gain<\/strong> – higher average gain than bigger designs due to special wideband tuning of the directors in combination with a horizontal folded dipole.
Wide bandwidth<\/strong> – covers the FM band with consistent high performance.
Superior F\/B<\/strong> – even compared with much bigger designs, now improved compared to previous FM15 versions. Rear response is minimised over the entire<\/em> rear half-plane, not just directly to the rear, and over the whole bandwidth.
Lowest SWR<\/strong> – see measurements below, lowest mismatch loss across the band.
Lowest loss signal transfer<\/strong> – very low loss wideband halfwave coaxial balun for 75 \u03a9.
Optimized 5 element reflector wall<\/strong> – really makes a difference for F\/B.
Predictable performance<\/strong> – all elements are electrically isolated from the boom to minimize boom effectsand common-mode currents on the connected coax.
No phasing lines<\/strong> – no coupling to the boom that degrades the optimised pattern.
Superior mechanical stability<\/strong> – heavy duty boom and mast clamp.
Maximum mechanical durability<\/strong> – continuous and seamless elements, heavy duty mast clamp and stainless mounting hardware.
Reasonable size<\/strong> \u2013 size is not much bigger than typical 8 element designs.
Detailed specification overleaf<\/strong> – all parameters modeled or measured!<\/p>\n\n\n\n

On the web: http:\/\/ham-radio.com\/k6sti\/korn1511.htm<\/a><\/p>\n\n\n\n

Modeled results: Modeling software: MMANA-GAL v. 1.0.2.20<\/p>\n\n\n\n

\"Gain<\/a>
Gain (dBi) and F\/B over rear half plane<\/figcaption><\/figure>\n\n\n\n
\"Gain<\/a>
Gain (dBi) and F\/B directly to the rear<\/figcaption><\/figure>\n\n\n\n
\"Horizontal<\/a>
Horizontal and vertical patterns<\/figcaption><\/figure>\n\n\n\n
\"Measured<\/a>
Measured SWR SWR 88 – 108 MHz (Including balun, measured with 12th wave transformer)<\/figcaption><\/figure>\n\n\n\n

Gain comparison*:<\/p>\n\n\n\n

\"Forward<\/a><\/figure>\n\n\n\n

F\/B comparison*:<\/p>\n\n\n\n

\"Front-to-Worst-Backlobe<\/a><\/figure>\n\n\n\n

 *) Modeled by Brian Beezley, http:\/\/ham-radio.com\/k6sti\/<\/a>, using AO-Pro 8.08 Antenna Optimizer<\/p>\n\n\n\n

\"Electrically<\/a>
Electrically isolated element mounting hardware<\/figcaption><\/figure>\n\n\n\n

Maximum gain: <\/strong>11.8 dBi
Impedance:<\/strong> 75 \u03a9 unbalanced (50 \u03a9 with additional wideband 12th<\/sup> wave transformer)
Dimensions:<\/strong>
Length: 3.74 m \/ 147\u201d
Width: 2.08 m \/ 82\u201d
Height: 1.48 m \/ 58\u201d
Turning radius: 2.35 m \/ 92.5\u201d
Design:<\/strong>
Peter K\u00f6rner, M.Sc.EE
Lund
Sweden
Email: p_korner@hotmail.com<\/a><\/p>\n\n\n\n

Manufacture and sale:<\/strong>
VHF TEKNIK AB<\/strong>
Godsv\u00e4gen 2
S-231 62 Trelleborg
Sweden
Tel. +46 410 464 30
Fax +46 410 462 11
Email: info@vhfteknik.se<\/a>, sven@vhfteknik.se<\/a>
Web: http:\/\/www.vhfteknik.se\/<\/a><\/p>\n\n\n\n

\u00a9 2011 original specs sheet<\/p>\n","protected":false},"excerpt":{"rendered":"

At last – a new high performance FM antenna for serious DX or professional use: The FM15.11 Superior performance for size \u2013 and highest quality construction!High gain – higher average gain than bigger designs due to special wideband tuning of the directors in combination with a horizontal folded dipole.Wide bandwidth – covers the FM band… <\/p>\n

Read the full article<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-7929","page","type-page","status-publish","hentry"],"publishpress_future_action":{"enabled":false,"date":"2026-05-15 07:02:12","action":"change-status","newStatus":"draft","terms":[],"taxonomy":"","extraData":[]},"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/wijnants.info\/fmdx\/wp-json\/wp\/v2\/pages\/7929","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wijnants.info\/fmdx\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/wijnants.info\/fmdx\/wp-json\/wp\/v2\/types\/page"}],"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=7929"}],"version-history":[{"count":0,"href":"https:\/\/wijnants.info\/fmdx\/wp-json\/wp\/v2\/pages\/7929\/revisions"}],"wp:attachment":[{"href":"https:\/\/wijnants.info\/fmdx\/wp-json\/wp\/v2\/media?parent=7929"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}