{"id":36205,"date":"2013-09-17T00:00:02","date_gmt":"2013-09-16T22:00:02","guid":{"rendered":"http:\/\/www.cqdx.ru\/ham\/?p=36205"},"modified":"2023-10-11T10:34:09","modified_gmt":"2023-10-11T08:34:09","slug":"om-power-om4000hf-linear-amplifier","status":"publish","type":"post","link":"https:\/\/www.cqdx.ru\/ham\/qro-qrp\/om-power-om4000hf-linear-amplifier\/","title":{"rendered":"OM POWER OM4000HF Linear Amplifier"},"content":{"rendered":"<p>The linear amplifier OM4000 HF is designed for all short wave amateur bands from 1.8 till 29 MHz (including WARC) and all modes. It is equipped with a two pieces of ceramic tetrode FU728F.<\/p>\n<p><a href=\"https:\/\/www.cqdx.ru\/ham\/wp-content\/uploads\/2013\/08\/11.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-36206 size-full\" title=\"1\" src=\"https:\/\/www.cqdx.ru\/ham\/wp-content\/uploads\/2013\/08\/11.jpg\" alt=\"\" width=\"589\" height=\"330\" srcset=\"https:\/\/www.cqdx.ru\/ham\/wp-content\/uploads\/2013\/08\/11.jpg 589w, https:\/\/www.cqdx.ru\/ham\/wp-content\/uploads\/2013\/08\/11-300x168.jpg 300w\" sizes=\"auto, (max-width: 589px) 100vw, 589px\" \/><\/a><\/p>\n<p><strong>PARAMETERS:<\/strong><\/p>\n<ul>\n<li>Frequency Coverage: Amateur Bands 1.8 \u2013 29.7 MHz including WARC<\/li>\n<li>Power Output: 4000W in SSB and CW,<\/li>\n<li>3000W in RTTY, AM and FM<\/li>\n<li>Input Power: Usually 60 to 90W for full Output Power<\/li>\n<li>Input Impedance: 50 Ohm, VSWR &lt; 1.5 : 1<\/li>\n<li>Power Gain: 17 dB<\/li>\n<li>Output impedance: 50 Ohm unbalanced<\/li>\n<li>Maximum output SWR: 2:1<\/li>\n<li>SWR protection: Automatic switching to STBY, when reflected power is 350W or higher<\/li>\n<li>Intermodulation distortion: 32dB below nominal output<\/li>\n<li>Suppression of harmonics: &lt; -50 dBc<\/li>\n<li>Tubes: 2x FU728F Ceramic tetrode<\/li>\n<li>Cooler: Centrifugal blower + Axial blower<\/li>\n<li>Power supply: 2 x 230V \u2013 50 Hz one or two phases<\/li>\n<li>Transformers: 2 pcs of toroidal transformer 3kVA<\/li>\n<li>Dimensions: 485 x 200 x 455mm (width x height x depth)<\/li>\n<li>Weight: 43 kg<\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.cqdx.ru\/ham\/wp-content\/uploads\/2013\/08\/21.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-36207 size-full\" title=\"2\" src=\"https:\/\/www.cqdx.ru\/ham\/wp-content\/uploads\/2013\/08\/21.jpg\" alt=\"\" width=\"589\" height=\"330\" srcset=\"https:\/\/www.cqdx.ru\/ham\/wp-content\/uploads\/2013\/08\/21.jpg 589w, https:\/\/www.cqdx.ru\/ham\/wp-content\/uploads\/2013\/08\/21-300x168.jpg 300w\" sizes=\"auto, (max-width: 589px) 100vw, 589px\" \/><\/a><\/p>\n<p><strong>PROTECTIONS:<\/strong><\/p>\n<p>&#8211; VSWR too high<br \/>\n&#8211; Input power too high<br \/>\n&#8211; Output power too high<br \/>\n&#8211; Plate voltage too low<br \/>\n&#8211; Anode current too high<br \/>\n&#8211; Screen current too high<br \/>\n&#8211; Grid current too high<br \/>\n&#8211; Mistuning of PA<br \/>\n&#8211; Hot switching protection<br \/>\n&#8211; Soft start for protecting your fuses<br \/>\n&#8211; \u201cswitch-on blocking \u201c at opened amplifier<\/p>\n<p><strong><a href=\"https:\/\/www.cqdx.ru\/ham\/wp-content\/uploads\/2013\/08\/41.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-36208 size-full\" title=\"4\" src=\"https:\/\/www.cqdx.ru\/ham\/wp-content\/uploads\/2013\/08\/41.jpg\" alt=\"\" width=\"589\" height=\"330\" srcset=\"https:\/\/www.cqdx.ru\/ham\/wp-content\/uploads\/2013\/08\/41.jpg 589w, https:\/\/www.cqdx.ru\/ham\/wp-content\/uploads\/2013\/08\/41-300x168.jpg 300w\" sizes=\"auto, (max-width: 589px) 100vw, 589px\" \/><\/a><\/strong><\/p>\n<p>BAR GRAPH INDICATORS:<\/p>\n<p>&#8211; Power output \u2013 50 LEDs<br \/>\n&#8211; Reflected power \u2013 20 LEDs<br \/>\n&#8211; Current at screen ( Ig2 \u201310 LEDs )<br \/>\n&#8211; Anode voltage, anode current, tuning \u2013 30 LEDs<\/p>\n<p>LED indicators: &#8211; current at control grid ( Ig1 \u2013 2 LEDs )<br \/>\n&#8211; WAIT \u2013 preheating of tube (180 sec )<br \/>\n&#8211; STBY \u2013 standby<br \/>\n&#8211; OPR \u2013 operating condition<br \/>\n&#8211; FAULT \u2013 failure, switching off for abt. 4 sec<\/p>\n<p>Price: 5300 EUro<\/p>\n<p><a href=\"http:\/\/www.om-power.com\" target=\"_blank\" rel=\"noopener\">Link<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The linear amplifier OM4000 HF is designed for all short wave amateur bands from 1.8 till 29 MHz (including WARC) and all modes. It is equipped with a two pieces of ceramic tetrode FU728F. PARAMETERS: Frequency Coverage: Amateur Bands 1.8 \u2013 29.7 MHz including WARC Power Output: 4000W in SSB and CW, 3000W in RTTY,&hellip;<\/p>\n","protected":false},"author":2,"featured_media":36207,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[10],"tags":[37,74,148,272,304,320,346,357,358,390],"class_list":["post-36205","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-qro-qrp","tag-amplifier","tag-big-gun","tag-energy","tag-linear-amplifier","tag-new-equipment-2","tag-pa","tag-power","tag-qro","tag-qro-qrp","tag-rf","category-10","description-off"],"_links":{"self":[{"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/posts\/36205","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/comments?post=36205"}],"version-history":[{"count":0,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/posts\/36205\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/media\/36207"}],"wp:attachment":[{"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/media?parent=36205"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/categories?post=36205"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/tags?post=36205"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}