• You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
  • The Feb 2025 Radioddity Giveaway Results are In! Click Here to see who won!

Reply to thread

Some more brain vomit


For the Chinesium radio http://www.amateurradio.bz/4_dollar_satellite_antenna.html

For the general coverage vertical and the RTLSDR : https://www.ebay.com/itm/234159805440?hash=item3685031400:g:LCYAAOSwGtlhJ-ns

Hook it up to the RTLSDR ...and throw a wire up into a tree. Next , a tuner and a construction project https://www.hamradiosecrets.com/homebrew-antenna-tuner.html http://vk5ajl.com/projects/tuner.php https://w5dxs.tripod.com/pi-tuner.htm

I'll include the following even though it needs a small TX signal to activate. https://www.ebay.com/itm/392873830688?hash=item5b791ae920:g:jswAAOSwJdRfDt-M

By comparison the construction project is dead simple. Build a flag pole and insulate it from ground. Apply manual tuner and tune for maximum noise. Alternatively apply the auto tuner and tickle it with enough energy (syn-Gyn and a small amp?) and Bob's yer uncle.

Next , not so simple and not vertical. https://vk6ysf.com/balun_guanella_current_1-4.htm https://sites.google.com/view/kn9b/balun http://toroids.info/FT240-43.php (qty2) https://www.mscdirect.com/product/details/48703243 (qty 2 or more because it comes in handy) Pick a recipe https://hamwaves.com/cl-ocfd/en/index.html https://www.w8ji.com/balun_single_core_41_analysis.htm https://www.w8ji.com/windom_off_center_fed.htm [MEDIA=amazon]B01BD80NLI[/MEDIA] The purpose of all that is to build an antenna now that you may need later. Its specialty is a peculiar property or resonance at or near amateur frequencies with a feed point at or near 200 ohms. Fed with 50 ohm coax (UN-balanced) this translates to the 200 ohm (balanced) Off Center Fed Dipole feed point.


Just a bunch of links https://w5nor.org/antennas/


Ham gear doesn't need to be expensive or complicated. In case the bug bites you and you really want to talk as well as listen to HF radio ... https://www.hfsignals.com/wp-content/uploads/2019/02/ubitx_v5.pdf https://www.hfsignals.com/index.php/ubitx/ and community support https://groups.io/g/BITX20/topics


Last but not least I found a wayback link to the pdf(s) that created the high gain "fishing pole" 2.4ghz antenna . https://web.archive.org/web/20030204110749/http://aerialix.com/product_frame.html


EOF: