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Stone Mountain, Ltd. Introduction
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  1. Stone Mountain, Ltd. Introduction • Established in January 2002. • Business model is to provide high quality, extremely rugged and reliable speaker microphones to the land mobile radio (LMR) market, focusing on Public Safety, Emergency Response, Military and Industrial applications. • We offer two speaker microphone platforms (Sword and Juno), a PTT platform (Utah) and several audio accessories (Omaha Series). All major OEM radio platforms are supported. • See www.stonemountainltd.com for more details.

  2. Product Lines Juno™Speaker Microphone • Juno speaker microphone series. • Sword speaker microphone series. • Utah chest PTT series. • Omaha audio accessory series.

  3. Sword Speaker Microphone • Designed for Law Enforcement, Military, Fire Fighting, Utility, and Industrial users. • 50 mm. Mylar speaker. • Supports a full line of 2.5 mm., 3.5 mm. and six pin Hirose connector accessories. • Immersion rated to two meters for 60 minutes. • 24 month warranty.

  4. Sword ProBand Antenna Series • Antenna incorporates Printed Circuit Flex Film Technology (PCFFT) . • Antenna is included with speaker mic. • Micro miniature custom coax cable and connectors. • Full six foot extended coil cable. • Supports a full line of 2.5 mm., 3.5 mm. and six pin Hirose connector accessories. • Supports 700 & 800MHz. frequency. • Immersion rated to two meters for 60 minutes. • 24 month warranty.

  5. Sword TruBand Antenna Series • Micro miniature custom coax cable and connectors. • Full six foot extended coil cable. • Supports a full line of 2.5 mm., 3.5 mm. and six pin Hirose connector accessories. • Supports VHF, UHF, 700, 800, and 900MHz. frequencies. • Antenna is purchased separately from speaker Mic. • Immersion rated to two meters for 60 minutes. • 24 month warranty.

  6. Sword TruBand Antenna Series • VHF 136MHz - 144MHz • VHF 145MHz - 148MHz • VHF 150MHz - 162MHz • VHF 155MHz - 164MHz • VHF 164MHz - 174MHz • UHF 400MHz - 449MHz • UHF 450MHz - 469MHz • UHF 470MHz - 512MHz • 800MHz - 866MHz • 900 902MHz - 960MHz

  7. Speaker Microphone Design Ideology • Z-Axis design for manufacturability and ease of repair. • Modular design to facilitate upgrading. • Interchangeable components to minimize inventory. • No soldered connections - All gold plated custom connectors and pressure contacts for reliability in harsh environments. • Integrally molded buttons for environmental sealing. • Two shot revolving platen overmolding provides comfortable rubber user interface.

  8. Engineered Materials • Substrate is a custom engineered PC/ABS blend thermoplastic polymer. • Overmold is a thermoplastic elastomer alloy designed especially for bonding to the substrate PC/ABS polymer. • Molded concurrently in a two shot revolving platen overmolding process for optimum quality and part integrity. • Allows emergency button, push to talk (PTT) and volume control interface buttons to be integrally molded to the case, resulting in unprecedented sealing capability.

  9. Form Factor • Intuitive button locations. • Ergonomic form factor. • Comfortable rubber interface. • Roman arch design allows extreme compression loading in any direction. • Attractive design. • Form follows Function.

  10. Receive Audio System • Conventional forward acoustic speaker porting. • Additional dual radial acoustic speaker porting - Allows speaker mic to be worn in any orientation without degradation to acoustic performance. • Speaker cavity self draining feature. • No speaker cloth to trap dust/debris-Clean speaker cavity by flushing with tap water. • Superb acoustic performance and clarity throughout the entire life of the product.

  11. Microphone Porting - Sword • AllClear microphone porting system. • Protected 3.5mm. microphone opening. • Sculpted, polished intake geometry removes surface tension – Minimizes trapped water and debris. • Enhances mic sensitivity. • Self clearing capability. • Integrally protective hood directs falling water away from mic opening. • Maintains clear transmit audio even when covered with water.

  12. Microphone Porting - Juno • AllClear microphone porting system. • Oversize 3.5mm. microphone opening. • Sculpted, polished intake geometry removes surface tension – Minimizes trapped water and debris. • Enhances mic sensitivity. • Self clearing capability. • Integrally molded ribs in protective hood directs falling water away from mic opening. • Maintains clear transmit audio even when covered with water.

  13. Integrally Molded Buttons • PTT • Large contact area. • Positive tactile response. • Intuitive location. • Volume Control • Discrete high and low buttons. • Programmable on certain radio models. • Emergency • Recessed design coupled with custom 200 gm. and 320 gm. contact force switches to eliminate false emergencies.

  14. Belt Clip Belt Clip w/o screws - SMX25155 Belt Clip w/ screws – SMX26755 • Large, rugged design. • PC/ABS custom engineered polymer. • High quality stainless steel components for reliability and corrosion resistance. • 360° rotation with positive detents at every 45°. • High closure force. • 180 degree lip for positive retention. • Accommodates any tactical gear, turn out coat, etc. • Easy to replace and repair.

  15. Custom O-Ring Seal Screws Seal Screw Assembly, K22xK6 – SMX19086 • Custom designed and tooled. • Discrete low durometer silicon o-ring seal. • Recessed screw head for mating o-ring means no compression set - Maintains a reliable seal over the life of the product. • Nickel plated to protect against corrosion in harsh environments. • Standard Torx drive throughout for positive, repeatable engagement torque during installation. • Reusable. Seal Screw Assembly, K22xK14 – SMX19024

  16. Speaker & Installation • High quality Mylar speaker. • Heavy duty magnet and construction. • Miniature connector interface. • Attached to front cover with custom designed and tooled pressure sensitive adhesive (PSA) component. • Hermetically sealed via robotically dispensed engineering adhesive compound.

  17. Dynamic Transfer Bars Sword PTT Transfer Bar – SMX19056 • Overmolded dynamic transfer bars for emergency and PTT buttons. • Ensures positive actuation over entire button user interface surface. • Maintains tactile response throughout product life. • Custom “ball and socket” mating interface - Ease of assembly and repair. Emergency Transfer Bar – SMX19007

  18. Custom Snap Dome Switches 200 gm – SMX19506 Used for Emergency Button 320 gm – SMX19013 Used for Volume Control • Custom designed and tooled. • 100% gold plated. • Side actuating snap domes in 200 gm. and 320 gm. contact force. • Pogo pin printed circuited board (PCB) interface-No soldering/no wires. • Allows Z-axis assembly. • Facilitates repair. • Custom “ball and socket” mating interface - Ease of assembly and repair. • Extensively tested in house and verified to one million actuations minimum. Front Cover Assembly – SMX19931

  19. Transmit Audio System Microphone Assembly – SMX19688 • Four component custom designed and tooled proprietary microphone acoustic gasket assembly. • Custom designed and tooled silicon rubber acoustic boot. • High sensitivity omni directional microphone. • Miniature connector interface for ease of assembly and repair - No soldering. • Custom designed and tooled silicon rubber sound port. • Superb transmit audio and clarity. Sword Sound Port – SMX19058 Microphone Boot – SMX19687 Microphone Gasket – SMX19770

  20. Rear Cover Assembly • PC/ABS custom engineered polymer. • Compression molded, custom designed and tooled low durometer silicon rubber environmental seal. • Low compression set speaker support component. • Labyrinth design venting system with waterproof gaskets. • 100% of all seal interface surfaces are highly polished for reliable environmental sealing. • Discrete sub assembly supports Z-axis assembly - Ease of repair. Rear Cover Assembly – SMX19061

  21. Main PCB Assembly • Self aligning via integrally molded mating geometry in the front cover. • 100% surface mount technology (SMT) components. • 100% gold plated for optimum conductivity, performance and reliability in harsh environments. • No hand soldering - Easy to repair. • All Main PCB’s will accommodate every SML cable/accessory option with existing SMT connectors - Easy to upgrade. • Clean, efficient design.

  22. Cable Attachment & Accessories • Supports system accessory option upgrade. • Aircraft aluminum grade cable clamps, includes holes for easy release and repair. • Integrally overmolded waterproof accessory interfaces in the cable. • Options include 2.5 mm, 3.5 mm. and 6 pin Hirose. • Miniature connectors throughout - No soldering.

  23. Cable – Strain Relief, Sealing & Performance • Custom designed, machined high strength brass ferrules, crimped to the cable. • 50K cycle endurance rating. • Overmolded with custom engineered thermoplastic polyurethane (TPU). • Designed using finite element analysis (FEA) for optimized strength to weight ratio. • Integrally molded o-ring seal interfaces with high qualitysilicon rubber o-ring seals. • Integrally molded locking geometry prevents rotation of cable and subsequent damage to the electrical connections. • 200 Newton minimum rated pull strength.

  24. Radio Connector (RC) Design • All RC’s are either custom tooled by SML or sourced from quality OEM RC suppliers. • Most SML tooled RC’s are fastened together using seal screws - No snap fits. • All SML tooled RC’s include miniature connectors - No soldered wires. • Most SML tooled RC’s include multiple molded silicon components for redundant environmental sealing. • Custom three layer PSA includes silicon and acrylic adhesive components. • All seal surfaces 100% polished.

  25. Radio Connector (RC) PCB • All RC PCB’s are either custom tooled by SML or sourced from quality OEM RC suppliers. • All SML tooled PCB’s are 100% surface mount technology (SMT). • All SML tooled PCB’s are 100% gold plated for optimum reliability in harsh environments. • All SML tooled PCB’s are fully connectorized for ease of assembly and repair. • High strength, gold plated pogo pins for long, reliable life.

  26. ProBand Antenna Technology • Printed Circuit Flex Film Technology (PCFFT) allows miniaturization of the physical antenna envelope. • High RF performance. • Bendable and durable. • Will not corrode or rust. • Waterproof. • Low profile. • Light weight. • Supports 800MHz., with 700MHz and 900MHz. pending.

  27. ProBand Assembly • Custom engineered thermoplastic elastomer alloy overmolded antenna assembly. • High quality, low durometer discrete silicon o-ring sealing component. • Antenna included with speaker microphone - No need to dismantle radio antenna. • No soldered connections for ease of repair and high reliability. • Micro miniature, low loss coax connectors and cable allow full six foot extended coil cord. Plated Rear Cover – SMX19875

  28. TruBand Assembly • Replaceable injection molded 1/4 wave helical antenna. • High quality, low durometer discrete silicon o-ring sealing component. • No soldered connections for ease of repair and high reliability. • Replaceable gold plated surface mount RF PCB. • Micro miniature, low loss coax connectors and cable allow full six foot extended coil cord. • VHF, UHF, 800MHz. and 900MHz. antennas. Plated TruBand Rear Cover Assembly – SMX25072

  29. RF Plating • Cutting edge vacuum metallization plating process using copper and nickel materials. • High conductivity. • Excellent shielding. • Will not rust, corrode or degrade in corrosive environments. • Highest quality. Sword Plated Front Cover – SMX19933

  30. Cable Assemblies • Six foot fully extended cable assembly. • 100% fully connectorized signal and coax interface to speaker mic head and all SML tooled radio connectors - No soldered connections. • Integrally overmolded, environmentally sealed accessory interfaces in the cable. • Options include plain, 2.5 mm., 3.5 mm. and six pin Hirose. • Rugged 5.5mm. diameter OD cable – Industry’s largest. • Absolute highest quality, most rugged cable assembly available.

  31. Available Options • ProGain - User adjustable microphone gain system. • AGC - Automatic Gain Control feature. • Stainless steel knurled thumb screw. • Interface to various OEM headsets, SCBA’s, etc. • Standard or half length cables (most models).

  32. ProGainTM System • Allows the user to custom attenuate the speaker mic Tx audio microphone gain. • Easy to access, sealed adjustable gain potentiometer. • Maintains system environmental seal/immersion rating. • Adjust microphone gain from maximum to minimum transmit power – Allowing close quarter communications by eliminating feedback. • Simply remove the belt clip via four T6 Torx fasteners - Adjust mic gain with a small screw driver. • Available on both Sword and Juno.

  33. AGC - Automatic Gain Control • Unique to SML • Mounts to main speaker mic PCB. • Custom tunable via software inputs. • Automatically adjusts the microphone sensitivity and provides a consistent level of receive audio • Useful If the user is whispering, shouting, or if background noise such as wind or industrial noise is present. • Increases performance and addresses interface problems typical with accessories such as headsets and SCBA communication systems. • Available on Sword.

  34. Sword Technical Specifications • Microphone Element Omni directional • Microphone Sensitivity -40 dBV (0dB=1V/Pa) • Speaker Diameter 2.0” (50 mm) • Speaker Output Power ½ to 1 W (dependent on radio brand/model) • Speaker Output Level (SPL) 93 to 100 dB SPL (dependent on radio brand/model) • Operating Voltage Range 5.0 to 9.0 VDC (microphone) • Female Accessory Jacks 3.5 mm & 2.5 mm for remote Rx audio or 6 pin Hirose HR10A 7R 6S “Locking Quick Disconnect” for remote Tx/Microphone, Rx/Earphone and PTT functions • Frequency Response 300 – 3000 Hz • Distortion 4% (speaker) • Dimensions 3⅜” L x 2⅝” W x 1” H (84.8 mm x 66.0 mm x 26.8 mm) • Weight 7.5 oz (212 gm) • Operating Temperature -30°C to +60°C • Storage Temperature -57°C to +80°C • Volume Control Up (+) and Down (-) buttons for adjustable volume control • Rotating Clothing Clip 360°with positive detents at every 45° • Cable Assembly Flex Life 50,000 cycles

  35. Cable Assembly Pull Strength1 45 lbs. (200N) tensile strength, in line with speaker mic • Cable Assembly Pull Strength2 45 lbs. (200N) tensile strength, perpendicular to speaker mic • Immersion Rating3 One (1) meters for thirty (30) minutes • Mil-Std 810C, D, E & F Specs Designed to meet or exceed • Low Pressure 500.4/I & II Yes • High Temp 501.4/I & II Yes • Low Temp 502.4/I & II Yes • Blowing Rain 506.4/I3 Yes • Leakage 512.4/I3 Yes • Humidity 507.4/II Yes • Salt Fog 509.4/I Yes • Blowing Dust 510.4/I Yes • Vibration 514.4/I/CAT 1 & 104 Yes • Shock 516.5/I & IV Yes • Temp Shock 503.4/I Yes • Solar Radiation 505.4/II Yes Footnotes: 1 Straight pull strength, at speaker microphone end 2 Right angle pull strength, at speaker microphone end 3 Speaker mic only, excludes radio device connector 4 Curve W