102 as fixed to ubho sub collar 101 by set screws 112 where such axial movement is dampened by upper and lower shock springs 108 and 109 upper shock spring 108 is retained by compression rings 107 and lower shock spring 109 is retained between shock sleeve 103 and ubho sleeve 102 in summary therefore fig1 illustrates a self contained shock absorber device in a unitary ubho sub 100 requiring no additional sub length as compared to conventional ubho subs without shock absorbing functionality with further reference to fig1 main orifice 104 provides two flow paths fp 1 and fp 2 it will be understood that as illustrated fp 1 is through a center hole in main orifice 104 while fp 2 is via a series of perimeter holes in an annular arrangement in currently preferred embodiments the center hole and perimeter holes are sized and arranged to ordain about 50 flow each between fp 1 and fp 2 although this disclosure is not limited in this regard in order to enable mud pulse telemetry in association with the disclosed shock absorbing ubho sub the design of main orifice 104 provides for complete opening and closing of the center hole in main orifice 104 during mud pulse telemetry while allowing the perimeter holes in to remain open at all times it is recognized that due to the telescoping nature of the shock absorbing ubho sub disclosed herein the disclosed ubho sub will likely not be compatible with conventional mud pulse transmitter valve designs currently on the market a new mud pulse transmitter valve design would therefore be highly advantageous in order to enable mud.