Hello Gary, Install a free Gerber Viewer https://sourceforge.net/projects/gerbv/files/gerbv/ First: Download a Gerber zip file from Juma website to a HDD folder http://www.jumaradio.com/juma/juma-geber-files.html Then: Extract the zip file to HDD In Gerber Viewer: File - Open layer(s) Select all ext...
Hello all, We are happy to inform that many retired Juma radios and few new ones will be available soon again. We have agreed with Andrei YO6TJJ at roWaves Technologies to manufacture and sell selected Juma kits and fully assembled radios. Pse watch the information in roWaves website for availabilit...
The value 680nH is correct. L1, L2 and C11 forms a 12MHz LPF filter to attenuate harmonics coming from the mixer IC2. Check first that the 10MHz square wave (CLK/2) is coming to IC2 pin 14.
Nice to hear that you like JUMA TX500. Unfortunately the "small" kits are discontinued. We are currently focusing on JUMA PA1000. My plan is to share also the remaining PCB Gerber files of the "small" Juma kits soon, including TX136.