Your are right. It has no units
-Tim ----- Integrated Technical Services ________________________________ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Monday, February 05, 2007 5:32 PM To: Tim Ellison; [EMAIL PROTECTED]; Flex-radio Reflector Subject: RE: [Flexradio] RX Image Rejection I am wonderinng here, Phase can not be in dB. If in degees then +360 degrees = 00 degrees = -360 degrees. phase scale goes from -400 to +400 " things" What are these "things" ???? Can someboddy tell me ??? thanks 73 peter pa0pvn groeten Peter petervn(a)hetnet.nl <mailto:[EMAIL PROTECTED]> ; pa0pvn(a)hetnet.nl <mailto:[EMAIL PROTECTED]> ; pa0pvn(a)gmail.com ; pa0pvn(a)amsat.org . ________________________________ Van: [EMAIL PROTECTED] namens Tim Ellison Verzonden: ma 5-2-2007 22:00 Aan: [EMAIL PROTECTED]; Flex-radio Reflector Onderwerp: Re: [Flexradio] RX Image Rejection What sound card are you using? It makes a difference with the observed values. Having a good clean signal to calibrate on with no strong adjacent signals +/- 22 KHz on either side of the carrier is critical. I use my other rig in CW mode to provide a very strong (59+30) reference signal and after the automatic calibration; I tweak it to eliminate the image. The numbers are not too outrageous; phase= -78 dB and gain = + 18 dB -Tim ---- Integrated Technical Services www.itsco.com "Si fractum non sit, id reficere" -Unknown Roman consultant -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Monday, February 05, 2007 7:53 AM To: flexradio@flex-radio.biz Subject: [Flexradio] RX Image Rejection ZS6AVM Wrote: For some time now, can't remember exactly how many SVN's back, I have noticed some really high numbers when doing the Automatic RX Image Rejection Routine from the Calibration Setup Menu, and then viewing the results of the Calibration in the DSP Image Rejection Setup Menu I can't remember the figures off hand, they are something like Phase = 360.00, and Gain = -250.00 (these are not exact figures) Wot should one usually see when running this routine? The reason I'm asking is, I used to see figures like Phase = 8.00 and gain = -7.88 Perhaps someone can tell me wot I should be seeing, and if there is perhaps a hardware or other issue affecting this Calibration Routine, resulting in such huge figures Be seein ya Dave ************************************************************************ ******************************* Disclaimer: The information contained in this communication is confidential and may be legally privileged. It is intended solely for the use of the individual or entity to whom it is addressed and others authorised to receive it. Any review, retransmission, dissemination, copying, disclosure or other use of, or taking of any action in reliance upon, this information by person or entities other then the intended recipient is prohibited. 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