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Ships within 48 hours · Estimated delivery Aug 15 - Aug 20
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Description
PMM5544 OEM Acoustic ModemThe PMM5544 is a high performance underwater acoustic modem enabling robust communication, voice capability, and scientific data collection. PMM5544 Features: Long Range Acoustic Communication: 18 km depending on transducer, conditions, and modulation selected. Flexible Data Rates: 80 bps to 10,240 bps depending on the selected modulation scheme. Precise Acoustic Ranging: High accuracy ranging capability (<0. 3 m). Low Power Wake Up: Energy efficient
The PMM5544 is a high-performance underwater acoustic modem enabling robust communication, voice capability, and scientific data collection.
PMM5544 Features:
- Long-Range Acoustic Communication: 1–8 km depending on transducer, conditions, and modulation selected.
- Flexible Data Rates: 80 bps to 10,240 bps depending on the selected modulation scheme.
- Precise Acoustic Ranging: High-accuracy ranging capability (<0.3 m).
- Low Power Wake-Up: Energy-efficient standby operation with rapid activation.
- Customizable Linux Platform: Supports APIs for Python, MATLAB®, C++, JSON, JACK, and Socket integration.
- Simultaneous 4-Channel Hydrophone Input / 4-Channel Output: Unique to the PMM5544, this allows multi-channel sample-synchronous acoustic processing for integrating advanced sensing, beamforming, and detection applications.
- Integrated Single Sideband Voice: Includes SSB voice communications with adaptive squelch, VOX, and noise cancellation.
- High-Speed Dual-Core ARM Processor: Dual-core 1.4 GHz Arm® Cortex®-A53 processor for rapid data processing and efficient onboard control.
- Multiple Connectivity Options: Gigabit Ethernet, RS-422, and RS-232 interfaces for easy integration.
- Onboard Storage: 64 GB internal storage, expandable via microSD.
Optional Specialized Features (License Required):
- JANUS Support: Enables interoperable underwater communications using the NATO ANEP-87 standard.
- Phorcys Stheno + Euryale: Adds secure Phorcys communications with Stheno (20–28 kHz) and Euryale (8–12 kHz) capability. Euryale requires a compatible low-frequency transducer.
- MARIA: Unlocks the Marine Acoustic Rapid Innovation Architecture for custom acoustic algorithms, PCM data access, and advanced hardware control.
Technical Details:
Download the technical specifications sheet at www.popotomodem.com/documentation for more in-depth information.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 4
Comfy and warm
Fits well but the non-slip feature isn't great on carpeting
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Reviewed in the United States on January 11, 2025
★★★★★ 5
It is what I was looking for
Size: 10-13, Color: Black Lattice
The product is use for a at home slipper so that I don't need to wear shoes. I can relate my feet with a soft support on the bottom of my feet.
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Reviewed in the United States on June 11, 2022
★★★★★ 5
Great treat replacing for motivated dogs!!!
Color: Yellow
i use this ball strictly for training purposes with my Aussie who is super obsessed with balls. My dog seriously loves this ball. This has taken the place of treats. When we aren’t training the ball goes in a closet. So far it’s durable enough for our training session. (If we have a good session he is rewarded with having free access to the ball for a limited time, he enjoys a little tug so I normally hold the rope and let him have at the ball) for $10 id say it’s worth it. It’s definitely not indestructible but it is cheaper for me to replace these than buying treats every week as rewards.
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Reviewed in the United States on January 17, 2026
★★★★★ 5
Fun toy
Color: Orange
Well made. The puppies love it, BUT it is too hard for them at an early age ( 2 1/2 months. They ended up grabbing the rope. As they got 5-6 months they were fine. Make another model 1 inch smaller and half as hard
Belgian Malinois & Doberman.
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Reviewed in the United States on April 15, 2026
★★★★★ 5
Durable & great deal
Color: Orange and Yellow
My foster German Shepherd has a jaw that's locked and loaded but love these cause I can play tug of war or fling it way across the yard. He's chewed or busted every ball he's received except these. I'm loving them. Very durable, bounces too really well and I can find it easily with the colors.
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Reviewed in the United States on April 8, 2026
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