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

sobell1980 · 9th Dec 2019, 10:03 pm

I've had the set on the scope to confirm my suspicions.
I tuned the set to 1500metres LW. That works out to exactly 200khz. 200khz plus 460khz should give a scope and frequency reading of 660khz.

The actual reading I got. I had a time period of 0.7 graticules measured at 2 micro seconds.
0.7× 2uS =1.4
1÷1.4= 714khz
714-200 = an IF of 514khz actual intermidiate frequency.
So I guess I'm getting my sig gen repaired!
Dave

9th Dec 2019, 10:03 pm	#38
sobell1980 Octode Join Date: May 2011 Location: Bromyard, Herefordshire, UK. Posts: 1,241	Re: Ekco U49 restoration I've had the set on the scope to confirm my suspicions. I tuned the set to 1500metres LW. That works out to exactly 200khz. 200khz plus 460khz should give a scope and frequency reading of 660khz. The actual reading I got. I had a time period of 0.7 graticules measured at 2 micro seconds. 0.7× 2uS =1.4 1÷1.4= 714khz 714-200 = an IF of 514khz actual intermidiate frequency. So I guess I'm getting my sig gen repaired! Dave Attached Thumbnails