# RFsoc 4\*2 (RF Analyzer application issue) **URL:** \ **Category:** Support\ **Created:** [June 16, 2026, 10:36am UTC](https://discuss.pynq.io/t/rfsoc-4-2-rf-analyzer-application-issue/9109 "2026-06-16T10:36:53Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Vamsi](https://avatars.discourse-cdn.com/v4/letter/v/b38774/32.png) [@Vamsi](https://discuss.pynq.io/u/Vamsi)\ **Post date:** [June 16, 2026, 10:36am UTC](https://discuss.pynq.io/t/rfsoc-4-2-rf-analyzer-application-issue/9109/1 "2026-06-16T10:36:53Z")
Hey Folks, i am trying to do spur analysis for rfsoc 4\*2 board, i thought to use RF analyzer application for whole chain analysis, but when i am trying to do the setup with board\<-\> RF Analyzer application, i am getting below mentioned error. thanks ![image](https://us1.discourse-cdn.com/flex019/uploads/pynq1/original/2X/2/2741cf5b9559e88133553a91366f443c83d22505.png) ---
**Author:** ![patocarr](https://avatars.discourse-cdn.com/v4/letter/p/d2c977/32.png) [@patocarr](https://discuss.pynq.io/u/patocarr)\ **Post date:** [June 22, 2026, 2:48pm UTC](https://discuss.pynq.io/t/rfsoc-4-2-rf-analyzer-application-issue/9109/2 "2026-06-22T14:48:07Z")
It appears that there’s some issue accessing the board over JTAG. Are you able to do this from Vivado? This question is better suited for the AMD community forums, as there’s nothing inherently related to PYNQ in it. Thanks, -Pat ---
**Author:** ![Pavithra\_B\_S](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/pavithra_b_s/32/7564_2.png) [@Pavithra\_B\_S](https://discuss.pynq.io/u/Pavithra_B_S)\ **Post date:** [August 6, 2026, 4:40am UTC](https://discuss.pynq.io/t/rfsoc-4-2-rf-analyzer-application-issue/9109/3 "2026-08-06T04:40:35Z")
hey, Did you find out a way? We are also observing a lot of spurs across the band on averaged FFT and would like to check with the RF analyzer tool but havent been able to use it