{"id":5039,"date":"2023-04-11T11:01:00","date_gmt":"2023-04-11T01:01:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2023\/04\/11\/arnie-coro-jaguey-rig-designed-in-1982-more-info-on-the-rig\/"},"modified":"2025-07-22T18:02:25","modified_gmt":"2025-07-22T08:02:25","slug":"arnie-coro-jaguey-rig-designed-in-1982-more-info-on-the-rig","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2023\/04\/11\/arnie-coro-jaguey-rig-designed-in-1982-more-info-on-the-rig\/","title":{"rendered":"Arnie Coro: Jaguey Rig Designed in 1982, More info on the Rig"},"content":{"rendered":"

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<\/a><\/div>\n
Jaguey, Matanzas, Cuba<\/span><\/b><\/div>\n


<\/b>Dxers Unlimited’s mid week edition for 23-24 October 2007<\/b><\/span><\/p>\n

By Arnie Coro Radio Amateur CO2KK<\/b><\/pre>\n
... <\/b><\/pre>\n
My own personal experience with the original JAGUEY direct conversion <\/span><\/b><\/pre>\n
transceiver, designed way back in 1982, is that when used with a well designed front end input circuit, those receivers provide amazing sensitivity, with signals as low as 1 microvolt easily detected but, they do have one drawback, their selectivity or ability to separated between stations is very poor. The direct conversion radio receivers are used for picking up CW Morse Code Signals , Digital Modes and Single Side Band, but they are not good for receiving AM signals, and can't <\/span><\/b><\/pre>\n
pick up FM modulated signals at all...<\/span><\/b><\/pre>\n

<\/span><\/b><\/pre>\n
The original JAGUEY 82 Cuban designed single band amateur transceiver,<\/span><\/b> was <\/span><\/b>tested against a sophisticated and really expensive factory built <\/span><\/b><\/pre>\n
transceiver. The tests showed that our design was at least as sensitive as the very expensive professional equipment, registering a measured sensitivity of less than one microvolt per meter, producing perfect CW Morse Code copy of such a signal. Adding well engineered audio filtering to a direct conversion receiver can turn it into a really wonderful radio by all standards amigos. <\/span><\/b><\/pre>\n

<\/span><\/b><\/pre>\n
Radio is a fun hobby, and believe me amigos, there is nothing more magical than listening to a radio receiver you have just finished building !!!<\/span><\/b><\/pre>\n

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-----<\/b><\/pre>\n

<\/b><\/pre>\n
Peter Parker VK3YE Found a nice description of the Jaguey by Cuban radio Amateur Jose Angel Amador from the BITX40 Facebook Group: <\/b><\/pre>\n

<\/b><\/pre>\n
A translation. This was apparently in response to someone who thought they'd found a Jaguey schematic: <\/b><\/span><\/pre>\n

<\/b><\/span><\/pre>\n
\"That's not an original Jaguey, that was a simple, single band, unswitched, 5 watt, DSB, kit for beginners with no gear and needing something to put on the license.<\/span><\/b><\/pre>\n
Carbon microphone direct to balanced modulator, two stages with 20 dB gain, W1FB\/W1CER style feedback, and final with 2 x 2N2102 class B.<\/span>
The receiver was more like that of the schematic, with a TAA263, easy to get from the FRC in 1978, and headphones. No need for an RF stage: the mixer was overloaded at night with European broadcasts above 7150.<\/span>
The VFO is also inspired by Solid State Design for the Amateur Radio, a Colpitts with 2SC372 and a low gain feedback buffer with two 2SC372s.<\/span>
Binocular ferrites were taken from Soviet TV baluns. The conditions of Cuba 1978.<\/span>
Today I would make an SSB rig with polyphase networks, mixer with 4066, and VFO Si5351.<\/span>
The big complication of BitX is the crystal filter, they either get it made, or stick to a recipe, but few have what is needed to measure and tinker with crystal filters.<\/span><\/b><\/pre>\n
<\/pre>\n","protected":false},"excerpt":{"rendered":"
Jaguey, Matanzas, Cuba Dxers Unlimited’s mid week edition for 23-24 October 2007 By Arnie Coro Radio Amateur CO2KK … My own personal experience with the original JAGUEY direct conversion transceiver, designed way back in 1982, is that when used with a well designed front end input circuit, those receivers provide amazing sensitivity, with signals as … Continue reading “Arnie Coro:   Jaguey Rig Designed in 1982, More info on the Rig”<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":5040,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[302,7,35,33,36],"tags":[],"class_list":["post-5039","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cuba","category-demaw-doug","category-direct-conversion","category-dsb","category-parker-peter"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/5039","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/comments?post=5039"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/5039\/revisions"}],"predecessor-version":[{"id":5041,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/5039\/revisions\/5041"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media\/5040"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=5039"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=5039"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=5039"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}