15:01 For your info: harmonics always have a higher frequency than their fundamental, typically double (2x) or triple (3x) and so on... If the transmitted frequency (approx 14.057 MHz is the fundamental, the peak left cannot be a harmonic, because that would be 28.114 Mhz or even higher. The peak at the left is a little under 5 divs to the left, let's say 4.8 divs. This equals 4.8x50 = 240 kHz (0.240 MHz with 50 kHz/div) and therefore, the peak at the left would be at 13.817 MHz. I lack the knowledge to where this signal comes from, it could be a mixing product, but I'd expect that to resulting also in a small peak at 14.057 + 0.240 = 14.297 MHz but that peak seems to not appear... By the way, my respect for admitting that you're not an expert... neither am I! 73 de HA7RJA
Rob, Thank you for the information. This was a great kit to build and I am learning something new every day playing with it. I’ll be building the PA kit this summer. Ill post a video for that as well. 73!
![โรงเรียนตอนตี 2 โคตรหลอน..!! [โรงเรียนไดเม่]](http://i.ytimg.com/vi/2MAEMwqVYh8/mqdefault.jpg)
15:01 For your info: harmonics always have a higher frequency than their fundamental, typically double (2x) or triple (3x) and so on... If the transmitted frequency (approx 14.057 MHz is the fundamental, the peak left cannot be a harmonic, because that would be 28.114 Mhz or even higher. The peak at the left is a little under 5 divs to the left, let's say 4.8 divs. This equals 4.8x50 = 240 kHz (0.240 MHz with 50 kHz/div) and therefore, the peak at the left would be at 13.817 MHz. I lack the knowledge to where this signal comes from, it could be a mixing product, but I'd expect that to resulting also in a small peak at 14.057 + 0.240 = 14.297 MHz but that peak seems to not appear...
By the way, my respect for admitting that you're not an expert... neither am I! 73 de HA7RJA
Rob, Thank you for the information. This was a great kit to build and I am learning something new every day playing with it. I’ll be building the PA kit this summer. Ill post a video for that as well. 73!