{"id":30067,"date":"2011-12-16T07:00:26","date_gmt":"2011-12-16T05:00:26","guid":{"rendered":"http:\/\/www.cqdx.ru\/ham\/?p=30067"},"modified":"2023-09-26T16:27:30","modified_gmt":"2023-09-26T14:27:30","slug":"kn-q7a-single-band-ssb-transceiver-kit","status":"publish","type":"post","link":"https:\/\/www.cqdx.ru\/ham\/diy\/kn-q7a-single-band-ssb-transceiver-kit\/","title":{"rendered":"KN-Q7A Single Band SSB Transceiver Kit"},"content":{"rendered":"

The KN-Q7A single band SSB transceiver kit was designed specifically for the worldwide market by BA6BF, and kitted by BD6CR\/4. As the upgraded version of the popular KN-Q7 (more than 500 kits were sold worldwide), the KN-Q7A has an improved circuit design and component selection, which makes it an ideal candidate for field operation, back pack and emergency use.<\/p>\n

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

Improvements from KN-Q7<\/strong>
\n\u2022 Improved Low Pass Filter (LPF) circuit to meet the -43 dBc standard
\n\u2022 Added post IF amplifier one pole crystal filter to reduce background noise
\n\u2022 Removed RX\/ TX indicator LED to further reduce RX current consumption by about 5 mA
\n\u2022 Added an on-board RF attenuator in the receiver front end to reduce broadcast interference
\n\u2022 Added power polarity protection
\n\u2022 Larger chassis area (+25%) used as heat sink to reduce thermal drift
\n\u2022 More frequency coverage options: support for European calling frequency 7.090 MHz and American calling frequency 7.285 MHz
\n\u2022 Matched IF filter crystals to ensure good selectivity
\n\u2022 Improved part selection, and reduction of SMD part count to just one transistor<\/p>\n

Specifications:<\/strong>
\n\u2022 Dimension: 153 mm x 97 mm x 40 mm, not including protruding features
\n\u2022 Weight: less than 500 g or 1.1 lbs
\n\u2022 Power Supply: 12~13.8 V, 3 A
\n\u2022 Current consumption: 30 mA in RX and about 2 A in TX @ 13.8 V
\n\u2022 RF output: about 10 W PEP @ 13.8 V \u2022 Spur suppression: better than -43 dBc
\n\u2022 Sensitivity: about 0.5 ?V at 10 dB SNR \u2022 IF filter: 6 pole crystal ladder filter + 1 pole post IF amplifier crystal filter
\n\u2022 IF bandwidth: about 2.0 kHz
\n\u2022 IF frequency: 8.467 MHz or 8.192 MHz, depending on the selected tuning range
\n\u2022 Frequency tuning range: about 20 kHz in VXO type.
\nFive options: 7.050~7.070 MHz, 7.080~7.100 MHz, 7.145~7.165 MHz, 7.200~7.220 MHz, or 7.280~7.300 MHz<\/p>\n

Connectors:<\/strong>
\n\u2022 Speaker output: 3.5 mm connector, mono output
\n\u2022 Microphone input: 8-pin, can be configured to be compatible with electret microphones.
\n\u2022 Antenna connector: SL-16 type (M or SO-239 type equivalent), rear panel mount.<\/p>\n

Controls:<\/strong>
\n\u2022 IF Gain Control: act as volume control
\n\u2022 Tune Control<\/p>\n

Documentations:<\/strong>
\n\u2022 Quick Guide: English, Spanish and Japanese
\n\u2022 Full Manual: English, Spanish and Japanese
\n\u2022 Part List: English, Spanish and Japanese
\n\u2022 Drilling Template: No text, only drawing<\/p>\n

Price List and Payment<\/strong>:
\nKit: 115 USD, Assembled Kit 155 USD, Optional microphone 20 USD. Air shipping and handling 15 USD each for Asia and 25 USD each for worldwide. We accept paypal rongxh@gmail.com.<\/p>\n

Should you have any questions or inquiries, email us to rongxh@gmail.com or join and send post to http:\/\/groups.yahoo.com\/group\/CHINA_QRP<\/span><\/a>.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

The KN-Q7A single band SSB transceiver kit was designed specifically for the worldwide market by BA6BF, and kitted by BD6CR\/4. As the upgraded version of the popular KN-Q7 (more than 500 kits were sold worldwide), the KN-Q7A has an improved circuit design and component selection, which makes it an ideal candidate for field operation, back…<\/p>\n","protected":false},"author":2,"featured_media":30071,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[2,10],"tags":[259,278,304,358,359,360],"class_list":["post-30067","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-diy","category-qro-qrp","tag-kit","tag-low-power","tag-new-equipment-2","tag-qro-qrp","tag-qrp","tag-qrpp","category-2","category-10","description-off"],"_links":{"self":[{"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/posts\/30067","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=30067"}],"version-history":[{"count":0,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/posts\/30067\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/media\/30071"}],"wp:attachment":[{"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/media?parent=30067"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/categories?post=30067"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/tags?post=30067"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}