From the log of Trevor Watkins, 7AA

       9/4/24   9.23 3uz calling - The Radio Development Association has 
       requested us to call all Stations - 3uz speaking requesting all 
       Licensed Experimenters at present holding Experimental licenses to 
       continue to pay their fee of 10/- but to stop paying or not to pay 
       any Broadcasting Concern - with the exception of Commercial BC 
       Stns   3uz speaking  Oliver J Neilson & Co 45 Bourk Street 
       Melbourne - Hello Mr Turner Mr S.G.Lewis I hope you are getting 
       this all right - I will put another roll on the piano - (9.30pm)

       29/4/24  8.20pm (ICW) cq de 3uz -7aa de 3uz ge om rcd ur telegram 
       Harry ok - nw 15 mtrs lower  wavelength 335 mtrs  bi phone om gdo
       [a qso followed?]