{"id":4474,"date":"2023-04-18T13:33:00","date_gmt":"2023-04-18T03:33:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2023\/04\/18\/a-request-for-digital-help-from-a-ham-in-argentina\/"},"modified":"2025-07-22T18:02:24","modified_gmt":"2025-07-22T08:02:24","slug":"a-request-for-digital-help-from-a-ham-in-argentina","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2023\/04\/18\/a-request-for-digital-help-from-a-ham-in-argentina\/","title":{"rendered":"A Request for Digital Help from a Ham in Argentina"},"content":{"rendered":"<\/p>\n
\"\"<\/a><\/div>\n

Can someone out there help OM Martin LW9DTR? <\/b><\/p>\n

His e-mail is on his QRZ.com page: https:\/\/www.qrz.com\/db\/LW9DTR<\/a><\/b><\/p>\n

MARTIN LW9DTR<\/a> has left a new comment on your post ” <\/span>The JF3HZB Digital VFO Dial in the DJ7OO Direct Conversion Receiver (Who is JF3HZB?)<\/a> “:<\/span><\/b><\/p>\n

Technical support<\/span>
Dear Klaus Kirschelmann<\/span>
My name is Martin and my call sign is LW9DTR<\/span>
I am writing to you from my hometown of Buenos Aires, Argentina.<\/span>
I need your tech support because I’m trying to run the assembly you posted with the AD9850 + Arduino Mini + Oled to apply it in a QRP transceiver project and I’ve encountered two problems.<\/span>
The first problem is that I can’t find the code to program the Arduino on your website.<\/span>
The second issue is that the QRP transceiver design I’m using requires an inverted DDS output, ie as the frequency on the display increases, the output frequency should decrease.<\/span>
I lack programming skills, so I’m coming to you knowing you can guide me on what commands I can change in the program to make this happen.<\/span>
I will be very grateful to you in advance for your tremendous support.<\/span>
I say goodbye with all due respect and wish that this April 18th, International Amateur Radio Day, surprises you with joy and new projects.<\/span>
A big and warm hug.<\/span>
With respect:<\/span>
Martin Silva, LW9DTR<\/span><\/b><\/p>\n","protected":false},"excerpt":{"rendered":"

Can someone out there help OM Martin LW9DTR? His e-mail is on his QRZ.com page: https:\/\/www.qrz.com\/db\/LW9DTR MARTIN LW9DTR has left a new comment on your post ” The JF3HZB Digital VFO Dial in the DJ7OO Direct Conversion Receiver (Who is JF3HZB?) “: Technical supportDear Klaus KirschelmannMy name is Martin and my call sign is LW9DTRI … Continue reading “A Request for Digital Help from a Ham in Argentina”<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":4475,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[67,185],"tags":[],"class_list":["post-4474","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-arduino","category-argentina"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/4474","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=4474"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/4474\/revisions"}],"predecessor-version":[{"id":4476,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/4474\/revisions\/4476"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media\/4475"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=4474"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=4474"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=4474"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}