Sun Coast Amateur <br>Radio Club Society - blog:2022-01-04https://scarcs.ca/2026-05-09T11:22:15+00:00FeedCreator 1.8guide_to_doing_radio_astronomy_with_rpi_and_sdr_pdf2022-01-04T18:48:26+00:002022-01-04T18:48:26+00:002022-01-04T18:48:26+00:00https://scarcs.ca/blog/2022-01-04/guide_to_doing_radio_astronomy_with_rpi_and_sdr_pdfAnonymous
<h1 class="sectionedit1" id="guide_to_doing_radio_astronomy_with_rpi_and_sdr_pdf">Guide to Doing Radio Astronomy with RPi and SDR [pdf]</h1>
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<a href="https://drive.google.com/file/d/1ssS_zBQWDEXMENc2_aqqPGxGkEEU5Ea3/view" class="urlextern" title="https://drive.google.com/file/d/1ssS_zBQWDEXMENc2_aqqPGxGkEEU5Ea3/view" rel="ugc nofollow">https://drive.google.com/file/d/1ssS_zBQWDEXMENc2_aqqPGxGkEEU5Ea3/view</a>
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humming_bird_feeder_heater2022-01-04T18:58:51+00:002022-01-04T18:58:51+00:002022-01-04T18:58:51+00:00https://scarcs.ca/blog/2022-01-04/humming_bird_feeder_heaterAnonymous
<h1 class="sectionedit1" id="hummingbird_feeder_heater">Hummingbird Feeder Heater</h1>
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During our net this morning ( January 4, 2022 ) discussion came up about how our tiny feathered friends are doing in the recent cold snap, this was something I tried to keep one of our hummingbird feeders from freezing up.
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I was looking at ideas for using small heating pads to keep it de-iced when I ran across what this fellow did on YouTube, it is so simple and inexpensive that I thought it was absolutely brilliant.
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It uses four 1/4 watt 100 ohm resistors in parallel epoxied to the bottom of the feeder, then an old <abbr title="Upper Side Band">USB</abbr> charger and cable to supply power to it, the resulting output being 1 watt with the 5 volts supplied by the charger.
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I made one exactly like this and it worked fairly well, the top couple of inches froze during the cold snap, however if I put less solution in the feeder it probably would work better, I am also considering trying the same setup using eight 1/2 watt 100 ohm resistors to increase the output to 2 watts total, splitting them into two groups of four to distribute the heat more evenly too.
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Below is a link to the You Tube video and a couple of photos of my feeder, hopefully this is of interest to people, it certainly is helpful to these little birds.
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<a href="https://www.youtube.com/watch?v=e0ZxCSiPqa0" class="urlextern" title="https://www.youtube.com/watch?v=e0ZxCSiPqa0" rel="ugc nofollow">USB Heated Hummingbird Feeder</a>
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<a href="https://scarcs.ca/_detail/blog/2022-01-04/heater.jpg?id=blog%3A2022-01-04%3Ahumming_bird_feeder_heater" class="media" title="blog:2022-01-04:heater.jpg"><img src="https://scarcs.ca/_media/blog/2022-01-04/heater.jpg?w=600&tok=7a86cb" class="mediacenter" loading="lazy" alt="" width="600" /></a>
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<a href="https://scarcs.ca/_detail/blog/2022-01-04/feeder.jpg?id=blog%3A2022-01-04%3Ahumming_bird_feeder_heater" class="media" title="blog:2022-01-04:feeder.jpg"><img src="https://scarcs.ca/_media/blog/2022-01-04/feeder.jpg?w=600&tok=236b46" class="mediacenter" loading="lazy" alt="" width="600" /></a>
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