This revision is from 2010/10/27 18:49. You can Restore it.
Not sure which of these I want to build first.
Very simple field strength meter
Pros: Looks dead simple, and I have the parts already.
Cons: I doubt it does what the others do---it doesn't tune or amplify.
- Pair-of-NPN version.
This one seems somewhere between the above and below designs.
Pros: Amplification, good docs, PCB.
Cons: More complex than the above, but without the tuning of the below, PCB (I'd almost rather just play with my own layout of a Manhattan building technique).
Pros: Circuit design is similar to my SWL-40+, looks like it will be versatile with its tuning and sensitivity changeability.
Cons: Least simple