Use a mobile phone to send recorded WSPR https://stream.echo6.co/videos/watch/6d74354e-97a5-496d-bc68-3652800404b0 No WSPR transmitter with you? You can still transmit WSPR. Just record a 2 min burst on your mobile phone and play it back through an SSB transmitter. Provided you have the frequency and timing right it can be heard all over the world. (Yes there are WSPR apps but recording could still be handy if you've forgotten your interface cable) PS: If you liked this video please consider supporting Amateur Radio VK3YE by: Subscribing on YouTube,, Checking my books page at https://books.vk3ye.com, Shopping on Amazon via: https://amzn.to/3iiDQXv, or, Shopping on eBay via: https://ebay.us/i9DuWP (then if you buy something I'll get a small commission at no cost to you) Sat, 13 Jun 2026 18:07:06 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co Use a mobile phone to send recorded WSPR https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/6d74354e-97a5-496d-bc68-3652800404b0 All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.