JeffroK
Posts: 6352
Joined: 1/26/2005 Status: offline

????? BL and *BM Mark III (A Band) Shipborne IR DESCRIPTION: IFF Mark III (A band) shipborne interrogatorresponsor. BM is improved version of BL. USES: Interrogates Mark III transpondors (ABK, SCR595, SCR695, ABF, AN/APX1, AN/APX2) and gives an IFF reply on the radar scope. PERFORMANCE: Reliable maximum ranges: for BL, 90 miles; for BM, 100 miles is expected. TRANSPORTABILITY: Shipments of both sets include spares. BM has testing equipment as integral part. BL is packed for shipment in 2 units and weighs when crated a total of 375 lbs. BM is packed in 3 packages. Both sets are air transportable. INSTALLATION: BL has 4 components weighing a total of approximately 274 lbs. The equipment component is 20" x 30" x 203/4" and weighs 250 lbs. BM has 2 components, weighing a total of 585 lbs. The equipment component is 30" x 20" x 203/4" and weighs 275 lbs. PERSONNEL: Usually no additional personnel required  the associated radar personnel serving. POWER: Primary power required is 300 watts for BM, and 400 watts for BL, 110 v AC, 60 cycles. Source is ship's power or supply of associated radar.
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