Page 10 of "An Introduction to Iraq" provides a brief description of the Iraq Command Wireless stations, with Hinaidi being the location for the Control W/T Station.  The other Iraq wireless stations were based at Shaibah and Mosul, with Posts at Kirkuk, Muscat, Ser Amadia and Dhibban. At the time of publication, (August 1935) the Chief Signal Officer was Squadron Leader  (later Wing Commander during WW2) C K Chandler, MBE.