{"id":1864,"date":"2013-09-15T00:29:19","date_gmt":"2013-09-14T23:29:19","guid":{"rendered":"http:\/\/blog.lemsworld.com\/?p=1864"},"modified":"2013-09-15T00:29:19","modified_gmt":"2013-09-14T23:29:19","slug":"more-power","status":"publish","type":"post","link":"https:\/\/blog.lemsworld.com\/?p=1864","title":{"rendered":"More POWER!!!"},"content":{"rendered":"

Transmitter power… Sourced a 2SC1971 VHF MOSFET and have a go at beefing this 100mW to about 5,000! The idea is simple, just stick it on the end with 4 Trimmers for tuning\/matching and a few bits of 1mm lighting cable twisted to add some inductiveness! There’s always a bit of satisfaction in manipulating something from an electrical sphere and making it so much more interesting, lighting cable to make inductors or even with plumbing materials, a 15mm copper tube 2 meter JPole I built in 2005 is still up and running and out performs many other commercially produced aerials out there. 5 Watts may seem excessive for a transmitter to extend the audio from one room to another, but what the hell. It’s something to do and if it works I will be designing an antenna based on the highly successful JPole \ud83d\ude09 to resonate on 100 MHz, this should get me to Hastings from where I am (16 Miles). Slight legal issues might become apparent at this point but having driven around the chaotic London Town and been swamped with pirate radio stations left, right and center \ud83d\ude09 (ok the pun more appropriate for AM but hey) that bleed crap over a massive bandwidth and broadcasting day after day without intervention, I’m sure a QRP 20 minute broadcast on the south coast will not even be intercepted, or do you think differently? Of course I will have limited use for such a device, it’s more of a challenge. It will be more than likely I will build it into a box and save it for the apocalypse when I give people hope by transmitting archived episodes of The Archers convincing them they are already dead and nothing worse can ensue.<\/p>\n","protected":false},"excerpt":{"rendered":"

Transmitter power… Sourced a 2SC1971 VHF MOSFET and have a go at beefing this 100mW to about 5,000! The idea is simple, just stick it on the end with 4 Trimmers for tuning\/matching and a few bits of 1mm lighting cable twisted to add some inductiveness! There’s always a bit of satisfaction in manipulating something […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[4],"tags":[],"_links":{"self":[{"href":"https:\/\/blog.lemsworld.com\/index.php?rest_route=\/wp\/v2\/posts\/1864"}],"collection":[{"href":"https:\/\/blog.lemsworld.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.lemsworld.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.lemsworld.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.lemsworld.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1864"}],"version-history":[{"count":1,"href":"https:\/\/blog.lemsworld.com\/index.php?rest_route=\/wp\/v2\/posts\/1864\/revisions"}],"predecessor-version":[{"id":1865,"href":"https:\/\/blog.lemsworld.com\/index.php?rest_route=\/wp\/v2\/posts\/1864\/revisions\/1865"}],"wp:attachment":[{"href":"https:\/\/blog.lemsworld.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1864"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.lemsworld.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1864"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.lemsworld.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1864"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}