Update transmit.py start with random image_index

transmit.py

@@ -10,6 +10,7 @@ import sys
 from os import system
 from PIL import Image, ImageDraw, ImageFont, ImageColor
 import serial	
+import random
 
 def battery_saver_check():
 	try:
@@ -791,7 +792,7 @@ if __name__ == "__main__":
 #				system("sudo nc -l 8080 | csdr convert_i16_f | csdr fir_interpolate_cc 2 | csdr dsb_fc | csdr bandpass_fir_fft_cc 0.002 0.06 0.01 | csdr fastagc_ff | sudo /home/pi/rpitx/sendiq -i /dev/stdin -s 96000 -f 434.9e6 -t float &")
 				system("sudo nc -l 8080 | csdr convert_i16_f | csdr fir_interpolate_cc 2 | csdr dsb_fc | csdr bandpass_fir_fft_cc 0.002 0.06 0.01 | csdr fastagc_ff | sudo /home/pi/rpitx/sendiq -i /dev/stdin -s 96000 -f " + tx + "e6 -t float &")
 			print("Turning LED on/off and listening for carrier")
-			image_index = 1;
+			image_index = random.randint(0, 255);
 			while 1:
 #				print ("LED on")
 				output(txLed, txLedOff)