{"id":31921,"date":"2012-04-08T04:00:29","date_gmt":"2012-04-08T02:00:29","guid":{"rendered":"http:\/\/www.cqdx.ru\/ham\/?p=31921"},"modified":"2023-10-10T09:37:21","modified_gmt":"2023-10-10T07:37:21","slug":"dcm-2-dcm-70-receive-converter-3m-2m-and-70cm-to-10m","status":"publish","type":"post","link":"https:\/\/www.cqdx.ru\/ham\/new-equipment\/dcm-2-dcm-70-receive-converter-3m-2m-and-70cm-to-10m\/","title":{"rendered":"DCM-2 \/ DCM-70 Receive Converter 3m, 2m and 70cm to 10m"},"content":{"rendered":"

Receive Converter from V\/UHF to the 10m Band, ideal for SDR (Software Defined Receivers) and all other receivers.<\/p>\n

With the down converters DCM-2 and DCM-70 you can extend the frequency range of your receiver, whether SDR or conventional. Use all the benefits of your NetSDR, SDR-IQ or Perseus receiver not only on shortwave, but also on VHF and UHF. The DCM-2 converts the 2m band to 10m, the DCM-70 the 70cm band.<\/p>\n

These newly developed down converters use a double balanced wideband mixer with an Intercept point (IP3) of typically > 20dBm at the input. The input stage uses a modern E-PHEMT IC with an internal feedback loop. The result is a very low noise figure of typically 1.5dB and a high linearity. A three stage Helix filter at the input is used for good pre-selection and image rejection.<\/p>\n

Especially for these down converter, a new mixer was developed. The crystal controller oscillator uses two selected FETs and Schottky diodes. As a result a clean output signal is achieved, free of harmonics as far as possible, and with a very low phase noise.<\/p>\n

The converters DCM-2 and DCM-70 use a metal case with good RF shielding. The antenna input is an N female socket, the IF output is a BNC female socket. The required supply voltage is 12 to 14 V DC, protected against reverse polarity. DC connector reference 42913 requis.<\/p>\n

\"\"<\/a>The SSB Electronic DCM-2<\/strong> Converter is a superior receive down converter for 2 meters. Used in combination with the Perseus receiver, the DCM-2 provides exceptional sensitivity, large signal performance and high dynamic range to satisfy even the demanding users. Other receivers may also be operated in combination with the DCM-2. Input is 144-148 MHz and output is 28-32 MHz. The heart of the DCM-2 is an active, double-balanced broadband mixer with a typical Intercept-Point (IP3) of > 20 dBm at the input. The pre-stage of the converter uses a modern internally negatively fed back E-PHEMT IC, which exhibits a very low noise figure of 0.9 dB and first class linearity. The IP3 of this module is > 30 dBm. Preselection and spurious suppression is assured by a 3-stage Helix-Filter. A new mixing oscillator was expressly developed for the DCM-2. This crystal driven oscillator uses two selected FETs and several Schottky-Diodes for creating a spurious-free, low noise output signal.<\/p>\n

The DCM-2 has a HF-tight, tinplate housing. Input is a female N jack. Output is to a female BNC-socket. The operating voltage is 9 – 14 VDC 300 ma [+] 2.5\/5.5mm 0963. Reverse voltage protection is built-in.<\/p>\n

Price: $ 169.95 USD<\/em><\/p>\n

\"\"<\/a>The SSB Electronic DCM-70<\/strong> Converter is a superior receive down converter for 430-440 MHz. Used in combination with the Perseus receiver, the DCM-70 provides exceptional sensitivity, large signal performance and high dynamic range to satisfy even the demanding users. Other receivers may also be operated in combination with the DCM-70. Input is 430-440 MHz and output is 26-36 MHz. The heart of the DCM-70 is an active, double-balanced broadband mixer with a typical Intercept-Point (IP3) of > 20 dBm at the input. The prestage of the converter uses a modern internally negatively fed back E-PHEMT IC, which provides a very low noise figure of 0.9 dB and first class linearity. The IP3 of this module is > 30 dBm. Preselection and spurious suppression is assured by a 3-stage Helix-Filter. A new mixing oscillator was expressly developed for the DCM series. This crystal driven oscillator uses two selected FETs and several Schottky-Diodes for creating a spurious-free, low noise output signal.<\/p>\n

The DCM-70 has a HF-tight, tinplate housing. Input is a female N jack. Output is to a female BNC-socket. The operating voltage is 9 – 14 VDC 300 ma [+] 2.5\/5.5mm 0963. Reverse voltage protection is built-in.<\/p>\n

Price: $ 170.95 USD<\/em><\/p>\n

\"\"<\/a>The SSB Electronic DCM-137<\/strong> Converter is a superior receive down converter for 136-138 MHz. Used in combination with the Perseus receiver, the DCM-137 provides exceptional sensitivity, large signal performance and high dynamic range to satisfy even the demanding users. Other receivers may also be operated in combination with the DCM-137. Input is 136-138 MHz and output is 28-30 MHz. The heart of the DCM-137 is an active, double-balanced broadband mixer with a typical Intercept-Point (IP3) of > 20 dBm at the input. The pre-stage of the converter uses a modern internally negatively fed back E-PHEMT IC, which exhibits a very low noise figure of 0.9 dB and first class linearity. The IP3 of this module is > 25 dBm. Preselection and spurious suppression is assured by a 3-stage Helix-Filter. A new mixing oscillator was expressly developed for the DCM-2. This crystal driven oscillator uses two selected FETs and several Schottky-Diodes for creating a spurious-free, low noise output signal.<\/p>\n

The DCM-137 has a HF-tight, tinplate housing. Input is a female N jack. Output is to a female BNC-socket. The operating voltage is 9 – 14 VDC 300 ma [+] 2.5\/5.5mm 0963. Reverse voltage protection is built-in.<\/p>\n

Price: 170.95 USD<\/em><\/p>\n

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

Receive Converter from V\/UHF to the 10m Band, ideal for SDR (Software Defined Receivers) and all other receivers. With the down converters DCM-2 and DCM-70 you can extend the frequency range of your receiver, whether SDR or conventional. Use all the benefits of your NetSDR, SDR-IQ or Perseus receiver not only on shortwave, but also…<\/p>\n","protected":false},"author":2,"featured_media":31925,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[8],"tags":[194,304,328,416,421,457,490,504],"class_list":["post-31921","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-new-equipment","tag-ham_radio","tag-new-equipment-2","tag-perseus","tag-scanner","tag-sdr","tag-swl","tag-uhf","tag-vhf","category-8","description-off"],"_links":{"self":[{"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/posts\/31921","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=31921"}],"version-history":[{"count":0,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/posts\/31921\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/media\/31925"}],"wp:attachment":[{"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/media?parent=31921"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/categories?post=31921"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/tags?post=31921"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}