i just noticed the RF Source output for my KC901V is too low at -20dBm to -40dBm on port 1 & 2 when checking with Advantest R3465 Spectrum Analyzer even though the RF AMP setting is at 0dBm. So i did AF & RF Source calibration in SysCAL menu (FUNC, Shift 7). After calibration, the RF AMP showing -20 to -40dBm, i cant increase the setting anymore to 0dBm, and the output is about that setting on Spectrum Analyzer. in AF Source and AF OUT port, i still can set to 3000mVpp maximum, Spectrum Analyzer reading confirmed this. but when changing to port 1 & 2 its -20dB to -40dBm maximum. The specification show RF Source should be able to output -6dBm to 13dBm. I think something broken in port 1 & 2 path. This happens on all frequencies 50 - 7000MHz.
How to deal with this problem? is this easily fixable? or should i ask for warranty repair? I bought this unit on Sept 2017, its only 8 months with very seldom usage and i only use RF Source couple of time and now its broken. If i ask for warranty repair, i'm in Malaysia and sending to China will involve high shipping cost. If Deepace can cover shipping cost, then its ok. but if i have to pay shipping cost, then its problematic. i only notice this because i just bought Advantest R3465 Spectrum Analyzer since KC901V Spectrum mode is not really usefull in full span sweep, so now i have instrument to cross check with KC901V. I'm not sure since when this broken, maybe even from factory?. I've provided proof picture (see attached) Any idea? Waiting your reply thanks.
ps: i will also send this to Deepace email, so i can get urgent reply hopefully.