{"id":6017,"date":"2019-12-05T11:48:00","date_gmt":"2019-12-05T00:48:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2019\/12\/05\/replicating-n0wvas-regen-results\/"},"modified":"2019-12-05T11:48:00","modified_gmt":"2019-12-05T00:48:00","slug":"replicating-n0wvas-regen-results","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2019\/12\/05\/replicating-n0wvas-regen-results\/","title":{"rendered":"Replicating N0WVA’s Regen Results"},"content":{"rendered":"

When I watched Doug N0WVA’s in action I was struck by how much more sensitive his was than mine. <\/span> <\/p>\n

<\/div>\n
I think this is do to the LC ratio in the main tank circuit. In my original version I used the variometer that I had in my junk box. It was about 4.5 uH. Doug used a hand-wound coil of about 35 uH.
For construction details on Doug’s receiver and variometer go here:
https:\/\/aa7ee.wordpress.com\/2015\/02\/07\/n0wvas-one-fet-regen-optimized-for-ssbcw-sounds-great\/<\/a><\/p>\n

So mine was heavy on the C, and light on the L. I think the larger coil makes it easier to couple the antenna to the receiver. I notice a lot of discussion in the online regen community about suitable LC ratios. <\/p><\/div>\n

<\/div>\n
So I built a version more like Doug’s. I built my own variometer — that was a lot of fun. It is easier than it appears — Do not be deterred! And indeed the new receiver is much more sensitive. <\/div>\n
<\/div>\n
On this second receiver I measured an Minimum Discernible Signal of -115 dbm. On my ET-2 receiver it was only -93 dbm. The improvement was very noticeable. I could even copy 40 meter AM signals at the top of the band. And on SSB I was actually having trouble with overload — the signals were too strong for the oscillations of the regen. <\/div>\n","protected":false},"excerpt":{"rendered":"

When I watched Doug N0WVA’s in action I was struck by how much more sensitive his was than mine. I think this is do to the LC ratio in the main tank circuit. In my original version I used the variometer that I had in my junk box. It was about 4.5 uH. Doug used … Continue reading “Replicating N0WVA’s Regen Results”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[85,148],"tags":[],"class_list":["post-6017","post","type-post","status-publish","format-standard","hentry","category-minimalist-radio","category-regens"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/6017","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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/comments?post=6017"}],"version-history":[{"count":0,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/6017\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=6017"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=6017"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=6017"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}