Just received a new TRX-1 and have followed the instructions precisely with a few of my own sound files converted to the specified u-law format. I even downloaded sample u-law files from the web, all of which were copied individually to the root of my SD card as Startup_.au but nothing plays at power up other than the stock beep..Here it is: http://forums.radioreference.com/whistler-scanners/337827-whistler-wednesday-did-you-know.html#post2620792
Good luck... it's tricky.
Try this for yellow LED: F84035
Works perfect on my TRX-2
Well F84035 definitely works for me I now have yellow LED on my TRX-1.
Many thanks Sparklehorse.
It covers *most* of the UK allocations, but not all of them: the 138-156MHz band needs to be at least 6.25khz steps, and at the minute it's an oddball mix of steps. That prevents decoding of several users in this band, including one major TIII network. As Mike says, they should have gone down the Uniden route and made the step sizes user configurable. Personally I feel a bit cheated in that Whistler vendors still advertise it as having "Tuning Steps: 2.5, 3.125, 5, 6.25, 7.5, 8.33, 10, 12.5 ad 25 kHz".It's OK, it covers all the UK allocations, but they should have gone down the Uniden route and made the step sizes user configurable..