{"id":11918,"date":"2015-01-14T12:23:55","date_gmt":"2015-01-14T16:23:55","guid":{"rendered":"http:\/\/swling.com\/blog\/?p=11918"},"modified":"2015-01-14T12:23:55","modified_gmt":"2015-01-14T16:23:55","slug":"two-strategies-to-improve-sangean-ats-909x-sensitivity","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2015\/01\/two-strategies-to-improve-sangean-ats-909x-sensitivity\/","title":{"rendered":"Two strategies to improve Sangean ATS-909X sensitivity"},"content":{"rendered":"

\"ATS-909X\"<\/a>SWLing Post<\/em> contributor, Moshe, writes:<\/p>\n

“I would like to share something I noticed about Sangean sensitivity issue:
\nAs I own the ATS909, I noticed that with fresh set of regular batteries (1.5V) or it’s power transformer, it is very sensitive.
\nWhen the voltage of the batteries drops, so does sensitivity! Which means that if one uses rechargeable batteries (1.2V), the radio will be much less sensitive to begin with.”<\/p><\/blockquote>\n

Many thanks, Moshe! That is a very good reason to keep fresh alkaline batteries for the 909X, or to run it on a quiet power supply. Moshe is correct–fresh rechargeable batteries can’t deliver full voltage.<\/p>\n

Several weeks ago, a reader informed me about a modification that increases SW sensitivity by adding a 4:1\u00a0impedance transformer.<\/p>\n

Click here to download a PDF that documents the 4:1 transformer procedure.<\/a><\/p>\n

Note that I can’t remember who shared the PDF and am not sure who was so kind to document the procedure with photos. Any additional information would be appreciated.<\/p>\n

Have any readers performed the transformer mod on the ‘909X\u00a0with success?<\/p>\n","protected":false},"excerpt":{"rendered":"

SWLing Post contributor, Moshe, writes: “I would like to share something I noticed about Sangean sensitivity issue: As I own the ATS909, I noticed that with fresh set of regular batteries (1.5V) or it’s power transformer, it is very sensitive. When the voltage of the batteries drops, so does sensitivity! Which means that if one […]<\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[627,3,26,43],"tags":[149,148,602,3531,3530],"class_list":["post-11918","post","type-post","status-publish","format-standard","hentry","category-how-to","category-news","category-radios","category-shortwave-radio","tag-mods","tag-receiver-modifications","tag-sangean-ats-909x","tag-sangean-ats-909x-mods","tag-sangean-ats-909x-sensitivity"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-36e","jetpack-related-posts":[{"id":15554,"url":"https:\/\/swling.com\/blog\/2015\/11\/dan-compares-the-sangean-ats-909x-with-two-classic-portables\/","url_meta":{"origin":11918,"position":0},"title":"Dan compares the Sangean ATS-909X with two classic portables","author":"Thomas","date":"November 16, 2015","format":false,"excerpt":"Many thanks to SWLing Post contributor, Dan Robinson, who\u00a0shares a radio comparison he initially posted in the excellent Extreme Shortwave Listening Facebook group. Dan writes: When the Sangean ATS-909X was first released a few years ago, I decided that I would hold off obtaining one to let whatever bugs there\u2026","rel":"","context":"In "Guest Posts"","block_context":{"text":"Guest Posts","link":"https:\/\/swling.com\/blog\/category\/guest-posts\/"},"img":{"alt_text":"Sangean-ATS-909X-Sony-SW07-Panasonic-RF-B65","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/11\/Sangean-ATS-909X-Sony-SW07-Panasonic-RF-B65-1024x386.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/11\/Sangean-ATS-909X-Sony-SW07-Panasonic-RF-B65-1024x386.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/11\/Sangean-ATS-909X-Sony-SW07-Panasonic-RF-B65-1024x386.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":31525,"url":"https:\/\/swling.com\/blog\/2018\/04\/recommending-the-tecsun-pl-880-over-the-sangean-ats-909x\/","url_meta":{"origin":11918,"position":1},"title":"Recommending the Tecsun PL-880 over the Sangean ATS-909X","author":"Thomas","date":"April 6, 2018","format":false,"excerpt":"Many thanks to SWLing Post contributor,\u00a0Direwolf131, who recently commented on one of the Sangean ATS-909X reviews in the Post archives. Direwolf131 writes: I\u2019m a few years after Steve\u2019s comments but I will have a go at it, at least anecdotally speaking. I\u2019ve owned a half dozen Sangean ATS-909\u2019s, which includes\u2026","rel":"","context":"In "News"","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2013\/06\/ATS-909X_small.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":30748,"url":"https:\/\/swling.com\/blog\/2018\/02\/gregg-finds-a-case-for-the-sangean-ats-909x\/","url_meta":{"origin":11918,"position":2},"title":"Gregg finds a case for the Sangean ATS-909X","author":"Thomas","date":"February 6, 2018","format":false,"excerpt":"Many thanks to SWLing Post contributor,\u00a0Gregg Freeby, who writes: I recently purchased a Sangean ATS-909X and while I really like the radio, I wasn't too impressed with the envelope pouch\/case it came with for protecting the radio. I really like the leather case of the Tecsun PL-880 but it appears\u2026","rel":"","context":"In "Accessories"","block_context":{"text":"Accessories","link":"https:\/\/swling.com\/blog\/category\/accessories\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/02\/DSCF1990.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/02\/DSCF1990.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/02\/DSCF1990.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":6785,"url":"https:\/\/swling.com\/blog\/2013\/06\/lutus-review-of-the-sangean-atx-909x\/","url_meta":{"origin":11918,"position":3},"title":"Lutus’ review of the Sangean ATS-909X","author":"Thomas","date":"June 28, 2013","format":false,"excerpt":"Thanks to Benn (AK4AV) for forwarding Paul Lutus' in-depth review of the Sangean ATX-909X. Lutus mentions that shortwave sensitivity is fairly low, but medium wave and FM are quite good. Click here to read the full review: http:\/\/arachnoid.com\/Sangean_ATS-909X\/index.html On a side note, Benn points out that Paul\u00a0Lutus was the inventor\u2026","rel":"","context":"In "Radios"","block_context":{"text":"Radios","link":"https:\/\/swling.com\/blog\/category\/radios\/"},"img":{"alt_text":"ATS-909X_small","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2013\/06\/ATS-909X_small-300x193.png?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":23118,"url":"https:\/\/swling.com\/blog\/2017\/01\/updated-version-of-the-sangean-ats-909x\/","url_meta":{"origin":11918,"position":4},"title":"Updated version of the Sangean ATS-909X?","author":"Thomas","date":"January 3, 2017","format":false,"excerpt":"Many thanks to SWLing Post contributor,\u00a0Avo Ohanian, who writes: I had read with interest a review on Amazon about a purchaser receiving a Sangean ATS-909X in black with the firmware listed as \"P-01\". I can confirm that this is indeed the case and that I am curious as to whether\u2026","rel":"","context":"In "New Products"","block_context":{"text":"New Products","link":"https:\/\/swling.com\/blog\/category\/new-products\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/07\/ATS-909X.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/07\/ATS-909X.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/07\/ATS-909X.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":45877,"url":"https:\/\/swling.com\/blog\/2020\/10\/sangean-ats-909x2-pricing-europe-photos-and-product-details\/","url_meta":{"origin":11918,"position":5},"title":"Sangean ATS-909X2: Pricing (Europe), Photos, and Product Details","author":"Thomas","date":"October 9, 2020","format":false,"excerpt":"Many thanks to SWLing Post contributor, Armin Sander, who shares a link to the Sangean Europe website where they've posted details about the upcoming Sangean ATS-909X2 (click here to read our previous post about this model). Sangean Europe has announced the price as \u20ac329.00 with two color options of \"white\"\u2026","rel":"","context":"In "New Products"","block_context":{"text":"New Products","link":"https:\/\/swling.com\/blog\/category\/new-products\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/10\/ats-909x2_8_large__1-e1602273076188.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/10\/ats-909x2_8_large__1-e1602273076188.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/10\/ats-909x2_8_large__1-e1602273076188.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/10\/ats-909x2_8_large__1-e1602273076188.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/10\/ats-909x2_8_large__1-e1602273076188.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/11918","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/comments?post=11918"}],"version-history":[{"count":0,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/11918\/revisions"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=11918"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=11918"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=11918"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}