UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Jon_G4MDC · 26th May 2020, 9:02 am

It it were only harmonics we could deal with them!
I'm still wondering about a clean up PLL actually. I wonder how much mileage there is in that...?
We like the 5351 for it's programmablity down to Hz resolution but we don't like the grass that comes with it.
I could live with the RX LO with a bit of bandpass filtering at 35MHz - any spurs will only affect me anyway as RX spurious responses.

On TX it needs 2.5MHz output but it only needs to cover 50kHz or so. A 4046 or such could handle a PLL for that.

26th May 2020, 9:02 am	#27
Jon_G4MDC Nonode Join Date: Nov 2015 Location: Welwyn Garden City, Hertfordshire, UK. Posts: 2,015	Re: LO for genuine 10m FM10D Pye Cambridge It it were only harmonics we could deal with them! I'm still wondering about a clean up PLL actually. I wonder how much mileage there is in that...? We like the 5351 for it's programmablity down to Hz resolution but we don't like the grass that comes with it. I could live with the RX LO with a bit of bandpass filtering at 35MHz - any spurs will only affect me anyway as RX spurious responses. On TX it needs 2.5MHz output but it only needs to cover 50kHz or so. A 4046 or such could handle a PLL for that. Last edited by Jon_G4MDC; 26th May 2020 at 9:08 am.