Quote:
Originally Posted by Jon1967us
Switch the apparently unshieldedcable from sweep out with a shielded one and we now get something like this....
https://ibb.co/T09k88c
Probably as flat as its gonna get but...
The lashup connections are as follows to scope in xy mode
1. Generator (60hz) Horiz out -> scope X input
2. Gen sweep out —> clipped to rf dmod board—> scope DC in to Y input |
Well, since you didn't post a circuit for your demodulator, I can't say if it's hypothetically loading things, BUT the waveform is quite flat enough for alignment use now. Note that many alignment specs say something like "this part of the response should be +/- 10% from that part of the response" so you need to start with less than 10% tilt in your gear.