Power corrupts ..! Yes that is probably quantising problems with the a/d conversations , its quite a big step response Still worth having a look with the audio-spec analyser for supply components , w
Graham The display looks clean this end also the audio sounds pure with no 100 hz hum as monitored on an independent RX I have the proper C's es L for decouping as per Decca instructions with this TX
Stefan No 100 hz visible on the NL 9222 GRABBER. mal/g3kev -- Original Message -- From: [email protected] Stefan Schäfer To: [email protected] rsgb_lf_group@blacksheep.
That's the problem with modern digital technology , the dynamic range exceeds , that of the MK-1 eye ball , 30 db is 1000:1 , will show at 20 db over the noise and would not show on the scope Use a r
Gary Nice grabber now since mods yesterday, can read all now hi. I added some more decoupling to both LT es HT supplies es hope the hum u see has gone ? 73 de mal/g3kev -- Original Message -- From: g
... You have to click with the mouse on the picture .. then it expands .... Smile emoticon Smile emoticon G.. From: [email protected] mal hamilton Sent: Monday, August 08, 2011 7:28 PM To: rsgb_l
Yes Gary Your grabber seems to have a long delay before display es the times and freq hard to read otherwise sensitivity seems ok at present for distance 73 de mal/g3kev -- Original Message -- From:
Just finished my new PSU 60V/10A psu. While testing earlier find NO UK GRABBERS working and DK7FC has a SPURIOUS wobble signal right on 137.7 I will be QRV for a while from now on 137.7 qrs3 for DX
Mal, Gary, Right now i can see the 100 Hz sidebands on Gary's grabber! O copy ;-) Am 09.08.2011 17:57, schrieb mal hamilton: Graham The display looks clean this end also the audio sounds pure with no
Yes Gary Your grabber seems to have a long delay before display es the times and freq hard to read otherwise sensitivity seems ok at present for distance 73 de mal/g3kev -- Original Message -- Fro
Hi Mal, See attached screenshot. nb: my frequency readout is a bit off, the 10 MHz xtal I use for the SA612 mixer needs some extra calibration. 73;s, Minto pa3bca -- Ceterum censeo Carthaginem delend
It was visible on GARYs grabber. Now they are gone. Maybe a faulty contact on the caps? Good luck anyway. Strong rain again here, affecting the signal levels on the grabber here 73, Stefan PS: Coming
Just finished my new PSU 60V/10A psu. While testing earlier find NO UK GRABBERS working and DK7FC has a SPURIOUS wobble signal right on 137.7 I will be QRV for a while from now on 137.7 qrs3 for DX q
Gary No hum detected here lots of pa smoothing. I notice besides the main signal on ur grabber there is an image above es below main signal. Maybe strong signal causing problems ur end mal/g3kev -- O
