{"id":5305,"date":"2023-02-10T16:26:00","date_gmt":"2023-02-10T05:26:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2023\/02\/10\/soldersmoke-podcast-243-hi7-n2cqr-ubitx-mods-for-10-meters-high-school-direct-conversion-receiver-project-launched-success-mailbag\/"},"modified":"2025-07-22T18:02:26","modified_gmt":"2025-07-22T08:02:26","slug":"soldersmoke-podcast-243-hi7-n2cqr-ubitx-mods-for-10-meters-high-school-direct-conversion-receiver-project-launched-success-mailbag","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2023\/02\/10\/soldersmoke-podcast-243-hi7-n2cqr-ubitx-mods-for-10-meters-high-school-direct-conversion-receiver-project-launched-success-mailbag\/","title":{"rendered":"SolderSmoke Podcast #243 — HI7\/N2CQR, uBITX mods for 10 meters, High-School Direct Conversion Receiver Project Launched (Success!) Mailbag"},"content":{"rendered":"<\/p>\n
<\/a><\/div>\n
DC RX and one of the PTO boards we built as demos last night. <\/b><\/div>\n<\/p>\n

February 10, 2023<\/o:p><\/b><\/p>\n


<\/b><\/p>\n

SolderSmoke Podcast #224 is available. <\/b><\/p>\n


<\/b><\/p>\n

http:\/\/soldersmoke.com\/soldersmoke243.mp3<\/a><\/o:p><\/b><\/p>\n

<\/p>\n

Video here: (32) SolderSmoke Podcast 243 (video) Hi7\/N2CQR, uBITX, Success with High School Receiver Project – YouTube<\/a><\/b><\/p>\n

<\/p>\n

Pete N6QW had technical difficulties this morning. He insisted that the show must go on. Pete will be back for the next episode. <\/b><\/p>\n

<\/b><\/o:p><\/p>\n

\n

Travelogue:<\/u> <\/b><\/p>\n

Bill in the Dominican Republic for all of January. <\/b><\/p>\n

HI7\/N2CQR <\/span>Eastern tip of the island. uBITX and dipoles. <\/o:p><\/b><\/p>\n

20, 17, 10. <\/span>CW and SSB. <\/span>SSB was tough and I had reports of RF getting into the signal. <\/o:p><\/b><\/p>\n

Went to CW. <\/span><\/o:p><\/b><\/p>\n

Worked VWS Mike KA4CDN, and Walter KA4KXX on 20CW. <\/o:p><\/b><\/p>\n

Finally moved up to 10 CW. <\/span>Lots of contacts. Even though uBITX very QRP on ten. <\/o:p><\/b><\/p>\n

I am modifying the uBITX now. <\/span><\/o:p><\/b><\/p>\n

Copper tape shielding to keep RF out.<\/o:p><\/b><\/p>\n

<\/span>Low power out not the fault of the IRF-510s. <\/span>The problem is the 2N3904s. <\/o:p><\/b><\/p>\n

Will replace with 2N2222 in To-18 cans. <\/o:p><\/b><\/p>\n

Dean KK4DAS putting KD8CEC software into Arduino. <\/span>I gave up.<\/o:p><\/b><\/p>\n

Who sent me this orphan uBITX?<\/o:p><\/b><\/p>\n

SolderSmoke Shack South in final phase of construction. <\/o:p><\/b><\/p>\n

<\/b><\/o:p><\/p>\n

SHAMELESS COMMERCE DIVISION: <\/o:p><\/b><\/p>\n

Patreon!<\/o:p><\/b><\/p>\n

Bezos Shopping! <\/o:p><\/b><\/p>\n

<\/b><\/o:p><\/p>\n

DC Receiver Project<\/u><\/o:p><\/b><\/p>\n

Local High School radio club. <\/span><\/o:p><\/b><\/p>\n

Simple: <\/span>Like Herring Aid 5 and Wes\u2019s original.<\/o:p><\/b><\/p>\n

Farhan\u2019s four stages: <\/o:p><\/b><\/p>\n

BP Filter, Diode Ring, PTO, AF amp. <\/span><\/o:p><\/b><\/p>\n

Simple Colpitts PTO SURPRISINGLY STABLE.<\/o:p><\/b><\/p>\n

Simple and easy. <\/span>No chips. <\/span>No complicated circuits. <\/o:p><\/b><\/p>\n

Guys have helped test out the design: <\/span>Rick N3FJZ, Walter KA4KXX,<\/b><\/p>\n

Daniel VE5DLD, Stephen VK2BLQ and others. <\/o:p><\/b><\/p>\n

First session last night: <\/span>We demonstrated build of the PTOs. <\/span><\/b><\/p>\n

They worked (thank God). <\/o:p><\/b><\/p>\n

<\/b><\/o:p><\/p>\n

Open Circuits book. <\/o:p><\/b><\/p>\n

Envelope Detection Controversy <\/o:p><\/b><\/p>\n

Save the Antenna \u2013 Book \u201cLosing the Nobel Prize\u201d K1JT<\/o:p><\/b><\/p>\n

<\/b><\/o:p><\/p>\n

MAILBAG<\/u><\/o:p><\/b><\/p>\n

–Dean KK4DAS 10 meter DSB! <\/span>Tiny SA ULTRA! FB<\/o:p><\/b><\/p>\n

–John AC2RL on Elmer W3PHL DSB guy<\/o:p><\/b><\/p>\n

–AC3K reports inventor of Fender Stratocaster guitar was a ham: W6DOE<\/o:p><\/b><\/p>\n

–AF8E was doing POTA. <\/span>I worked him. He said my rig had presence. FB<\/o:p><\/b><\/p>\n

–Alain F4IET FB DSB rig with mic in Cigar can! <\/o:p><\/b><\/p>\n

–Daryl N0DP worked him on SSB. <\/span>He is homebrewing<\/o:p><\/b><\/p>\n

–Steve N8NM was in for repairs but is on the mend. <\/o:p><\/b><\/p>\n

–Rick G6AKG working with sub-harmonic mixers and logic chips<\/o:p><\/b><\/p>\n

–Paul HS0ZLQ Built DC receiver but looking for something else to build. No DSB! <\/o:p><\/b><\/p>\n

–Steve AB4I \u2013 Coherer, Jagadish Chandra Bose, and Marconi<\/o:p><\/b><\/p>\n

–Eldon KC5U <\/span>Worked VK5QD right after me and mentioned SolderSmoke FB<\/o:p><\/b><\/p>\n

–Todd K7TFC is building the DC RX. <\/o:p><\/b><\/p>\n

–Tony G4WIF and Ian G3ROO using automotive relays for antenna switching. FB. <\/o:p><\/b><\/p>\n

–Dave WA1LBP Great to hear from my fellow Hambassador (Okinawa)<\/o:p><\/b><\/p>\n

Older post comments:<\/o:p><\/b><\/p>\n

–Scott VO1DR was also in CF Rockey\u2019s class! (Blog comment) <\/o:p><\/b><\/p>\n

–Aurora Aug 4, 1972: Twelve people shared memories. <\/span>(Blog comment) <\/o:p><\/b><\/p>\n

–Will WN1SLG Googled novice call and was led to my Novice log.(Blog comment)<\/o:p><\/b><\/p>\n

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

DC RX and one of the PTO boards we built as demos last night. February 10, 2023 SolderSmoke Podcast #224 is available. http:\/\/soldersmoke.com\/soldersmoke243.mp3 Video here: (32) SolderSmoke Podcast 243 (video) Hi7\/N2CQR, uBITX, Success with High School Receiver Project – YouTube Pete N6QW had technical difficulties this morning. He insisted that the show must go on. … Continue reading “SolderSmoke Podcast #243 — HI7\/N2CQR, uBITX mods for 10 meters, High-School Direct Conversion Receiver Project Launched (Success!) Mailbag”<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35,19,66,60,49,12,117,18],"tags":[],"class_list":["post-5305","post","type-post","status-publish","format-standard","hentry","category-direct-conversion","category-dominican-republic","category-farhan","category-hayward-wes","category-soldersmoke-podcast","category-tj-dc-rx","category-ubitx","category-vienna-wireless-society"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/5305","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=5305"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/5305\/revisions"}],"predecessor-version":[{"id":5308,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/5305\/revisions\/5308"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=5305"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=5305"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=5305"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}