¿ªÔÆÌåÓý

ctrl + shift + ? for shortcuts
© 2025 Groups.io

Re: R4B 50 Khz I.F. sweep.


 

Boy that was a fast response thanks guys for the tips. The SA I have is a Rigol 815TG? which is the same unit WA8SAJ uses so figured I was good to go unfortunately I'm a little new to spectrum analyzers' operation. The first test I did was the 5645 Khz sweep with the SA connected through a blocking cap to pin1-V2 then used a small coil of insulated wire to basically sniff on the underside of V3. There was enough signal to draw a pattern on the SA seemed to work really well. Think I will revisit the 5645 test again without a direct connection to see if there's any difference in SA response.?
?In regards to the 50Khz test, I was directly connecting the TG through a blocking cap in multiple places without success, and from what you all said this is the wrong test setup to use. Was also using a blocking cap for the SA input as well I will refine my connections and report back as long as I can find the right test points for TG and SA input.

Dave

Join [email protected] to automatically receive all group messages.