This is an overview on building a band pass filter for the 10 GHz amateur band using copper plumbing end caps. Ideal when using a signal generator at lower frequencies, where you want to filter the fundamental and undesired harmonics. 15mm end cap double-sided PCB offcut M4 bolt & screws 085 semi rigid coax SMA connectors to suit Cheap and easy to build! This video is a refresh of the original, published in 2013. ... https://www.youtube.com/watch?v=cQPPUu5HRsc

VK4GHZ Nextion firmwarec for the K3NG Rotator Controller receive an update dated 2021-10-23. This update works in conjunction with Anthony Good's, K3NG, latest release of rotator controller Arduino code, version 2021.10.19.04. The primary change is the way the Nextion starts up and listens for the gSC (System Capabilities) variable sent from the Arduino. In previous versions the Nextion would wait a predefined amount of time ~300 mS for the gSC message to come in, then proceed to process that message and then go to the designated start page. However... on some occasions the Arduino was slow to send out the gSC message, and the Nextion wouldn't receive gSC before moving on. Annoyingly, this would mean the Nextion is stuck in the basic Azimuth "cheese burger" mode. Now, the Nextion will sit on the first splash page until the gSC message comes in.  Once that has happened, the Nextion moves onto the4 second splash page and processes the gSC data, and then moves onto the designated start page. Adam discusses the changes in this video. ------------------------------------------------------------------------------- Banggood referral: Get USD$20 voucher with your first order with Banggood. https://banggood.app.link/fR1lWkK86cb Get $5 off your first order with PCB Way.: https://www.pcbway.com/setinvite.aspx?inviteid=290409 Get FREE music and sound effects for your own Youtube videos using this referral link; https://www.epidemicsound.com/referral/t6yvn0/ When You GET OFF Facebook, These 10 Things Will Happen: https://www.lifehack.org/articles/communication/when-you-stop-checking-facebook-constantly-these-10-things-will-happen.html ------------------------------------------------------------------------------- VK4GHZ Nextion Firmware: https://vk4ghz.com/vk4ghz-nextion-for-k3ng-rotator-controller/ ------------------------------------------------------------------------------- ... https://www.youtube.com/watch?v=P_BM-x35EKI

This is what 10 GHz signals sound like via rain scatter. It sounds very much like auroral propagation, as VK4UH and VK4GHZ demonstrate. ... https://www.youtube.com/watch?v=LQT2RecywM4

Doug VK4OE and Phil VK4CDI are tweaking a 3.4 GHz septum feed for EME use. ... https://www.youtube.com/watch?v=LbevUIpMUGA