diff --git a/README.md b/README.md
index 4afc094..644b94d 100644
--- a/README.md
+++ b/README.md
@@ -85,6 +85,7 @@ zcu102_9371|[Xilinx ZCU102 board](https://www.xilinx.com/products/boards-and-kit
   ```
   ~/openwifi/fosdem-11ag.sh
   ```
+  **NOTE** adrv9361z7035 has ultra low TX power in 5GHz. Move **CLOSER** when you use that board in 5GHz!!!
 - After you see the "openwifi" SSID on your device (Phone/Laptop/etc), connect it. Browser to 192.168.13.1 on your device, you should see the webpage hosted by the webserver on board.
   - Note 1: If your device doesn't support 5GHz (ch44), please change the **hostapd-openwifi.conf** on board and re-run fosdem.sh.
   - Note 2: After ~2 hours, the Viterbi decoder will halt (Xilinx Evaluation License). Just power cycle the board if it happens. (If output of "./sdrctl dev sdr0 get reg rx 20" is always the same, it means the decoder halts)