{"id":36051,"date":"2013-07-26T00:00:10","date_gmt":"2013-07-25T22:00:10","guid":{"rendered":"http:\/\/www.cqdx.ru\/ham\/?p=36051"},"modified":"2023-09-24T16:10:56","modified_gmt":"2023-09-24T16:10:56","slug":"om-power-hf-linear-amplifier-om4000a","status":"publish","type":"post","link":"https:\/\/www.cqdx.ru\/ham\/qro-qrp\/om-power-hf-linear-amplifier-om4000a\/","title":{"rendered":"OM Power HF Linear Amplifier OM4000a"},"content":{"rendered":"

The OM Power model OM4000A<\/strong> is an automatic power amplifier, designed for use on all short wave amateur bands from 1.8 to 29.7 MHz (including WARC bands) and all modes. It is equipped with a two pieces of ceramic tetrode FU728F.<\/p>\n

\"\"<\/a><\/p>\n

THE ADVANTAGES OF OM4000A<\/p>\n

Full compatibility with:<\/p>\n

– ICOM
\n– ELECRAFT
\n– KENWOOD
\n– TEN-TEC ORION
\n– YAESU
\n– Icom transceive protocol using by MicroHAM devices ( CI-V output )<\/p>\n

Automatic switching between bands<\/p>\n

Automatic tuning within the band according to segments<\/p>\n

Automatic switching of band pass filter<\/p>\n

Automatic switching of antenna switches<\/p>\n

The possibility to use 2 different antennas within one band or segment<\/p>\n

Specification of OM4000A:<\/strong>
\nFrequency coverage: Amateur Bands 1.8 \u2013 29.7 MHz including WARC
\nPower output: 4000W in SSB and CW,
\n3000W in RTTY, AM and FM
\nInput Power: Usually 60 to 90W for full Output Power
\nInput Impedance: 50 Ohm, VSWR < 1.5 : 1
\nPower Gain: 17 dB
\nOutput Impedance: 50 Ohm unbalanced
\nMaximum Output SWR: 2:1
\nSWR protection: Automatic switching to STBY, when reflected power is 350W or higher
\nIntermodulation distortion: 32dB below nominal output
\nSuppression of harmonics: < -50 dBc
\nTubes: 2x FU728F Ceramic tetrode
\nCooler: Centrifugal blower + Axial blower
\nPower supply: 2 x 230V \u2013 50 Hz one or two phases
\nTransformers: 2 pcs of toroidal transformer 3kVA
\nDimensions: 485 x 200 x 455mm (width x height x depth)
\nWeight: 46 kg
\nProtection circuits: – VSWR too high<\/strong>
\n– Input power too high
\n– Output power too high
\n– Plate voltage too low
\n– Anode current too high
\n– Screen current too high
\n– Grid current too high
\n– Mistuning of PA
\n– Hot switching protection
\n– Soft start for protecting your fuses
\n– \u201cswitch-on blocking \u201c at opened amplifier
\nLED indicators: – Current at control grid (Ig1) – 2 LEDs<\/strong>
\n– WAIT \u2013 preheating of tube (150 sec.)
\n– STBY – standby
\n– OPR \u2013 operation mode
\n– FAULT \u2013 failure, switching off for abt. 2 sec.
\n– INHIBIT \u2013 operating condition
\n– ANT 1 – which ANT is in use
\n– ANT 2 \u2013 which ANT is in use
\n– ANT – ANT selection
\nBar graph indications: – Power output \u2013 50 LEDs<\/strong>
\n– Reflected power \u2013 20 LEDs
\n– Ig2 current – 10 LEDs
\n– Anode voltage, anode current, tuning \u2013 30 LEDs<\/p>\n

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

The OM Power model OM4000A is an automatic power amplifier, designed for use on all short wave amateur bands from 1.8 to 29.7 MHz (including WARC bands) and all modes. It is equipped with a two pieces of ceramic tetrode FU728F. THE ADVANTAGES OF OM4000A Full compatibility with: – ICOM – ELECRAFT – KENWOOD –…<\/p>\n","protected":false},"author":2,"featured_media":36052,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[10],"tags":[37,74,148,272,320,346,357,358,390],"class_list":["post-36051","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-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\/36051","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=36051"}],"version-history":[{"count":0,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/posts\/36051\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/media\/36052"}],"wp:attachment":[{"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/media?parent=36051"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/categories?post=36051"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/tags?post=36051"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}