{"id":385,"date":"2020-04-23T17:03:10","date_gmt":"2020-04-23T17:03:10","guid":{"rendered":"https:\/\/ra3dak.com\/radio-equipment-image\/?page_id=385"},"modified":"2022-03-27T16:52:00","modified_gmt":"2022-03-27T16:52:00","slug":"radio-receiver-pr-4p","status":"publish","type":"page","link":"https:\/\/ra3dak.com\/radio-equipment-image\/radio-receiver-pr-4p\/","title":{"rendered":"Radio receiver PR-4P"},"content":{"rendered":"\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><a href=\"https:\/\/overlandtravel.org\/radio\/wp-content\/uploads\/2022\/03\/Radio-receiver-PR-4P-1.jpg\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/overlandtravel.org\/radio\/wp-content\/uploads\/2022\/03\/Radio-receiver-PR-4P-1.jpg\" alt=\"The radio receiver &quot;PR-4-P&quot; became a post-war modernization of the &quot;US&quot; receiver, which was developed around 1935 for military aviation.\" class=\"wp-image-1566\" title=\"Radio receiver PR-4P military aviation.\"\/><\/a><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">The radio receiver &#8220;PR-4-P&#8221; became a post-war modernization of the &#8220;US&#8221; receiver, which was developed around 1935 for military aviation.<\/h2>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><a href=\"https:\/\/overlandtravel.org\/radio\/wp-content\/uploads\/2022\/03\/Radio-receiver-PR-4P-2.jpg\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/overlandtravel.org\/radio\/wp-content\/uploads\/2022\/03\/Radio-receiver-PR-4P-2.jpg\" alt=\"The radio receiver &quot;PR-4-P&quot; became a post-war modernization of the &quot;US&quot; receiver, which was developed around 1935 for military aviation.\" class=\"wp-image-1567\" title=\"Radio receiver PR-4P military aviation.\"\/><\/a><\/figure><\/div>\n\n\n\n<p>This is a universal receiver for receiving telephony, voice-frequency telegraphy and telegraphy with undamped oscillations. It was used as part of RSB radio stations of all modifications, RAF, RSR-1 and others.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><a href=\"https:\/\/overlandtravel.org\/radio\/wp-content\/uploads\/2022\/03\/Radio-receiver-PR-4P-3.jpg\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/overlandtravel.org\/radio\/wp-content\/uploads\/2022\/03\/Radio-receiver-PR-4P-3.jpg\" alt=\"The radio receiver &quot;PR-4-P&quot; became a post-war modernization of the &quot;US&quot; receiver, which was developed around 1935 for military aviation.\" class=\"wp-image-1568\" title=\"Radio receiver PR-4P military aviation.\"\/><\/a><\/figure><\/div>\n\n\n\n<p>Superheterodyne with one 112 kHz IF frequency conversion. The receiver range provides the ability to receive radio signals at frequencies from 175 to 12000 kHz (1714 &#8211; 25 m).<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><a href=\"https:\/\/overlandtravel.org\/radio\/wp-content\/uploads\/2022\/03\/Radio-receiver-PR-4P-4.jpg\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/overlandtravel.org\/radio\/wp-content\/uploads\/2022\/03\/Radio-receiver-PR-4P-4.jpg\" alt=\"The radio receiver &quot;PR-4-P&quot; became a post-war modernization of the &quot;US&quot; receiver, which was developed around 1935 for military aviation.\" class=\"wp-image-1569\" title=\"Radio receiver PR-4P military aviation.\"\/><\/a><\/figure><\/div>\n\n\n\n<p>The entire range of the radio receiver is divided into 5 sub-ranges:<br>1 subband 175 &#8211; 350 kHz;<br>2 subband 375 &#8211; 875 kHz;<br>3 subband 900 &#8211; 2150 kHz;<br>4 subband 2150 &#8211; 5000 kHz;<br>5 subband 5000 &#8211; 12000 kHz.<br>On subbands 1 and 2, the frequencies are indicated in the table on the front panel of the radio; on 3, 4, and 5 subranges &#8211; are applied directly to the scale. There is no graduation on the sub-bands &#8220;I&#8221; 173-350 kHz and &#8220;II&#8221; 350-875 kHz, it is replaced by an exact scale broken into 180 degrees.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><a href=\"https:\/\/overlandtravel.org\/radio\/wp-content\/uploads\/2022\/03\/Radio-receiver-PR-4P-5.jpg\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/overlandtravel.org\/radio\/wp-content\/uploads\/2022\/03\/Radio-receiver-PR-4P-5.jpg\" alt=\"The radio receiver &quot;PR-4-P&quot; became a post-war modernization of the &quot;US&quot; receiver, which was developed around 1935 for military aviation.\" class=\"wp-image-1570\" title=\"Radio receiver PR-4P military aviation.\"\/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><a href=\"https:\/\/overlandtravel.org\/radio\/wp-content\/uploads\/2022\/03\/Radio-receiver-PR-4P-6.jpg\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/overlandtravel.org\/radio\/wp-content\/uploads\/2022\/03\/Radio-receiver-PR-4P-6.jpg\" alt=\"The radio receiver &quot;PR-4-P&quot; became a post-war modernization of the &quot;US&quot; receiver, which was developed around 1935 for military aviation.\" class=\"wp-image-1571\" title=\"Radio receiver PR-4P military aviation.\"\/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><a href=\"https:\/\/overlandtravel.org\/radio\/wp-content\/uploads\/2022\/03\/Radio-receiver-PR-4P-7.jpg\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/overlandtravel.org\/radio\/wp-content\/uploads\/2022\/03\/Radio-receiver-PR-4P-7.jpg\" alt=\"The radio receiver &quot;PR-4-P&quot; became a post-war modernization of the &quot;US&quot; receiver, which was developed around 1935 for military aviation.\" class=\"wp-image-1572\" title=\"Radio receiver PR-4P military aviation.\"\/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><a href=\"https:\/\/overlandtravel.org\/radio\/wp-content\/uploads\/2022\/03\/Radio-receiver-PR-4P-8.jpg\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/overlandtravel.org\/radio\/wp-content\/uploads\/2022\/03\/Radio-receiver-PR-4P-8.jpg\" alt=\"The radio receiver &quot;PR-4-P&quot; became a post-war modernization of the &quot;US&quot; receiver, which was developed around 1935 for military aviation.\" class=\"wp-image-1573\" title=\"Radio receiver PR-4P military aviation.\"\/><\/a><\/figure><\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The radio receiver &#8220;PR-4-P&#8221; became a post-war modernization of the &#8220;US&#8221; receiver, which was developed around 1935 for military aviation. This is a universal receiver for receiving telephony, voice-frequency telegraphy and telegraphy with undamped oscillations. It was used as part of RSB radio stations of all modifications, RAF, RSR-1 and others. Superheterodyne with one 112 &#8230; <a title=\"Radio receiver PR-4P\" class=\"read-more\" href=\"https:\/\/ra3dak.com\/radio-equipment-image\/radio-receiver-pr-4p\/\" aria-label=\"Read more about Radio receiver PR-4P\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-385","page","type-page","status-publish"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Radio receiver PR-4P military aviation &#8211; Radio Equipment Image<\/title>\n<meta name=\"description\" content=\"The PR-4P radio receiver became the post-war modernization of the US receiver, which was developed around 1935 for military aviation. 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