{"id":69557,"date":"2015-01-22T14:55:03","date_gmt":"2015-01-22T14:55:03","guid":{"rendered":"http:\/\/warc.org.uk\/?page_id=69557"},"modified":"2015-01-22T16:30:54","modified_gmt":"2015-01-22T16:30:54","slug":"cdg2000-post-mixer-amp-2","status":"publish","type":"page","link":"https:\/\/warc.org.uk\/?page_id=69557","title":{"rendered":"CDG2000 Post Mixer Amp 2"},"content":{"rendered":"<p>This is a modification to the design published in RadCom. In the original CDG2000, there were two ways in which the transmit signal was generated. One was by means of a separate transmit ALC\/filter board that took DSB from an exciter, the other was a DDS \/DSP design that generated SSB directly at 9 MHz. In both cases the output was a 10 dBm transmit signal at 9 MHz with inputs for ALC, drive power control and PA VSWR control. You can see the original version here.<\/p>\n<p>The DDS \/ DSP design is not yet published. Here you will find a modified design for the receive post mixer amp and filters that includes transmit SSB filtering, amplifiers, and ALC circuits.<\/p>\n<p>For background information, refer to the original version&#8217;s overview here.<\/p>\n<p>This is an updated PCB and schematic. For the previous version look HERE.<\/p>\n<table width=\"638\">\n<tbody>\n<tr>\n<td width=\"33%\"><\/td>\n<td width=\"33%\"><a href=\"https:\/\/warc.org.uk\/wp-content\/uploads\/2015\/01\/pma_plus_alc_tracking.pdf\">PCB Tracking<\/a><\/td>\n<td width=\"33%\"><a href=\"https:\/\/warc.org.uk\/wp-content\/uploads\/2015\/01\/pma_plus_alc_top_components_layout.pdf\">PCB Component Placement<\/a><\/td>\n<\/tr>\n<tr>\n<td width=\"33%\"><a href=\"https:\/\/warc.org.uk\/wp-content\/uploads\/2015\/01\/circuit_description_and_parts_list.doc\">Circuit Notes<\/a><\/td>\n<td width=\"33%\"><a href=\"https:\/\/warc.org.uk\/wp-content\/uploads\/2015\/01\/pma_plus_alc_tracking_reversed.pdf\">\u00a0PCB Tracking Reversed<\/a><\/td>\n<td width=\"33%\">\u00a0<a href=\"https:\/\/warc.org.uk\/wp-content\/uploads\/2015\/01\/pma_plus_alc_bottom_components_layout.pdf\">PCB Bottom Components Placement<\/a><\/td>\n<\/tr>\n<tr>\n<td width=\"33%\">\u00a0<a href=\"https:\/\/warc.org.uk\/wp-content\/uploads\/2015\/01\/post_mixer_amp_plus_tx_alc_board_4_part_1.pdf\">Schematic part 1<\/a><\/td>\n<td width=\"33%\">\u00a0<a href=\"https:\/\/warc.org.uk\/wp-content\/uploads\/2015\/01\/post_mixer_amp_plus_tx_alc_board_4_part_2.pdf\">Schematic Part 2<\/a><\/td>\n<td width=\"33%\"><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><a href=\"https:\/\/warc.org.uk\/wp-content\/uploads\/2015\/01\/Pma_plus_tx_alc.zip\">Pcb Cad Download PMA+TX<\/a><\/p>\n<p><a title=\"The CDG2000 Post Mixer Amp\" href=\"https:\/\/warc.org.uk\/?page_id=311\">Return to Post Mixer Amp page<\/a><\/p>\n<p><a title=\"CDG2000 Transceiver\" href=\"https:\/\/warc.org.uk\/?page_id=81\">Return to CDG2000 Home Page<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>This is a modification to the design published in RadCom. In the original CDG2000, there were two ways in which the transmit signal was generated. One was by means of a separate transmit ALC\/filter board that took DSB from an exciter, the other was a DDS \/DSP design that generated\u2026<\/p>\n<p class=\"continue-reading-button\"> <a class=\"continue-reading-link\" href=\"https:\/\/warc.org.uk\/?page_id=69557\">Continue reading<i class=\"crycon-right-dir\"><\/i><\/a><\/p>\n","protected":false},"author":98,"featured_media":0,"parent":311,"menu_order":0,"comment_status":"open","ping_status":"open","template":"templates\/template-page-with-intro.php","meta":{"footnotes":""},"class_list":["post-69557","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/warc.org.uk\/index.php?rest_route=\/wp\/v2\/pages\/69557","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/warc.org.uk\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/warc.org.uk\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/warc.org.uk\/index.php?rest_route=\/wp\/v2\/users\/98"}],"replies":[{"embeddable":true,"href":"https:\/\/warc.org.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=69557"}],"version-history":[{"count":7,"href":"https:\/\/warc.org.uk\/index.php?rest_route=\/wp\/v2\/pages\/69557\/revisions"}],"predecessor-version":[{"id":69693,"href":"https:\/\/warc.org.uk\/index.php?rest_route=\/wp\/v2\/pages\/69557\/revisions\/69693"}],"up":[{"embeddable":true,"href":"https:\/\/warc.org.uk\/index.php?rest_route=\/wp\/v2\/pages\/311"}],"wp:attachment":[{"href":"https:\/\/warc.org.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=69557"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}