Dn-radio kit rd16 amp. IMD3
Not the best, around 20dbc — 26db PEP average, needs some work 🙂
Not the best, around 20dbc — 26db PEP average, needs some work 🙂
10watt power 28dbc — 34db PEP: 10watt power 30dbc — 36db PEP: 5watt power 15dbc — 21db PEP:
102W 26dbc = 32 db PEP (taking average — did multiple measures and they were around this value): 1A current on the
DAC driver output — intermodulations somewhere at the noise floor 🙂 : 50W 37dbc = 43db PEP: 80W 31dbc = 37db PEP:
No active cooling. Also there are no feedback circuits on both stages and untuned bias on the second.
For qrz.com
Video in russian language
Checking with the thermal camera
https://aliexpress.ru/item/1005006114325611.html Maximum output with 30v input voltage on HF band — 1.369 watts: More input power — failed output: It hasn’t any
Before LPF, 60db att. 60-14.5=45.5 dBm eq. 35.48 watt After LPF 60-14.7=45.3 dBm eq. 33.88 watt Diamond meter before attenuator to TinySA