Maker Pro
Maker Pro

HP8753ES

Nemo1956

Sep 5, 2016
34
Joined
Sep 5, 2016
Messages
34
Hi all. Well this is turning out to be a bad mouth for me. First it was the 437 power meter and yes it is the sensor head that has gone tits up so that’s the end for that bit of kit. Then this weekend my Kenwood TS 830S died and today I started to do some work on a new band pass filter I put together and now my Hp 8753ES has died. There must be something in the air this month.

The dam thing won’t scan correctly so when I calibrate it will work over some of the sweep but not all of it. I looked at the level on the R channel and it will follow it.

I have enclosed some pictures so you can see what I mean.

Help.

IMG_2679[1].JPG IMG_2678[1].JPG IMG_2680[1].JPG
C:\Users\spaul\AppData\Local\Temp\msohtmlclip1\01\clip_image006.jpg

The first pic is in A/R the second one is the R channel and the third is in A/R and with a load.
What can I do with this ????
 

kellys_eye

Jun 25, 2010
6,514
Joined
Jun 25, 2010
Messages
6,514
.. some nasty ringing on the supply lines - have you checked the decoupling capacitors?
 

Nemo1956

Sep 5, 2016
34
Joined
Sep 5, 2016
Messages
34
Yes i have looked at the all the supply lines and they are clean and at the correct voltage
 
Top