All good valid points that you make here Kevin. There is also an equal fascination / obsession in some ham radio quarters with IM3 and levels! We are talking here of HF amateur / ham band transmitter
Spectral purity is even more important in amateur radio, as individual stations do not have fixed frequency assignments ('channels') and no analysis of the consequences of interference occurs prior t
It's any of the odd order IM since that falls in the adjacent "channel" and creates QRM. Even with low -30 dB IMD, that's a watt or so of power in each of the IM products for a 1500 W amplifier. The
All good valid points that you make here Kevin. There is also an equal fascination / obsession in some ham radio quarters with IM3 and levels! We are talking here of HF amateur / ham band transmitter
The FT-990 and FT-767GX probably used the same devices as they were contemporary rigs from the same manufacturer. But this is the point, the devices were rated for much higher power when meant they w
Hi Jim, I largely agree with your good points raised here. In respect of times when there's a crammed ham band chock full of brain dead contesters, I simply turn the rig off and come back to the oper