Updated First steps into APRS over LoRa (markdown)

First-steps-into-APRS-over-LoRa.md

@@ -7,7 +7,7 @@ APRS LoRa iGate is a full standalone ESP32 iGate with RX/TX and digipeating supp
 
 # Bands of operation
 There are several bands, where different LoRa modules could operate:
-- [✗] **~160-173.5 MHz**, untested, outside of amateur and ISM radio band plans, not possible to use
+- [✗] **~160-173.5 MHz**, untested, outside of amateur and ISM radio band plans, not possible to use, E32-170T30D, https://www.manualslib.com/manual/1606382/Ebyte-E32-170t30d.html
 - [✓] **~410-480 MHz**, 433.775 MHz is the center of operation inside the amateur radio band plan in IARU1 region (EU/US) 
   - frequency of operation is choosen based on proposal from https://vienna.iaru-r1.org/wp-content/uploads/2019/01/VIE19-C5-015-OEVSV-LORA-APRS-433-MHz.pdf
   - maximum bandwidth in IARU1 region for 433 MHz band is limited to 20 KHz, which requires stable TXCO sources or automatic frequency correction, it might also be possible to run at 125 KHz depending on the region and local band plan