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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
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Description
Dual PMM4511 Development Kit BundleThe Dual PMM4511 Development Kit Bundle provides a ready made two node OEM acoustic modem system for development, testing, and integration into systems requiring tight space constraints. Whether designing for research or product integration, this bundle gives you everything you need to evaluate underwater acoustic communications, develop custom control software, and prototype embedded subsea systems with the PMM4511. Features: Two Node Development
The Dual PMM4511 Development Kit Bundle provides a ready-made two-node OEM acoustic modem system for development, testing, and integration into systems requiring tight space constraints. Whether designing for research or product integration, this bundle gives you everything you need to evaluate underwater acoustic communications, develop custom control software, and prototype embedded subsea systems with the PMM4511.
Features:
- Two-Node Development System: Includes two PMM4511 OEM modem platforms for testing acoustic links, ranging, and custom integration workflows.
- Compact Low-SWaP Design: Slim 173 mm x 38 mm x 28 mm form factor ideal for embedded and space-constrained applications.
- Flexible Data Rates: Supports multiple modulation schemes from 80 bps to 10,240 bps.
- Acoustic Ranging: Two-way acoustic ranging with accuracy better than <0.3 m.
- Flexible Interfaces: Ethernet, RS-422, and RS-232 connectivity with pShell, JSON, and web interface support.
- Programmable Linux Platform: Supports Python, C++, MATLAB®, JSON, JACK, and MARIA APIs for system automation and custom development.
- Onboard Data Logging: 32 GB internal storage with waveform playback and recording.
- OEM Integration Ready: Designed for bench testing, embedded development, and integration into custom housings or subsea platforms.
Optional Specialized Features (License Required):
- Phorcys Stheno: Adds secure Phorcys communications capability on supported configurations.
- MARIA: Unlocks the Marine Acoustic Rapid Innovation Architecture for custom acoustic algorithms, PCM data access, and advanced hardware control.
NOTE: Requires 1 license copy per modem.
What's in the Box:
-
2x PMM4511 Development Kits
- Each includes an integrated interface board and 77Wh Li-Ion battery.
- 2x PMT-28 28 kHz Transducers
- 2x USB Cables
- 2x Li-Ion Battery Chargers
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
4.6 ★★★★★
Based on 602 reviews
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Product Reviews
★★★★★ 4
Truly Helped My Cracked Heels
Color: Original Grey
I didn't include a photo cause they look exactly like their advertisement photo.
I so liked the silicon-type heel lining as it kept the heel-repair cream on my heel and did not get soaked up by the sock. But, it is so, so slippery when walking around in them! Take care to be mindful when you set each foot down as the lotion can slide your heel across the sock quite a bit. If these socks were for an elderly person, I would have them only sit while using the sock - no walking around for fear of falling.
I have larger ankles and found that having both the top and the bottom hems/elastic, etc. the same size to be quite troublesome and was not a nice feeling or fit on my upper hem that hit my ankle. Don't get me wrong, I am so glad that I got them and I continue to use them and they are helping my horribly-cracked heels greatly, but I find that I have to keep moving the top hem up and down so that it doesn't stay in one position as it cuts in to my ankle.
My feedback and advice might be to please make the upper hem somewhat larger than the one that is on the bottom and goes over my actual foot. They really should not be the same circumference...or else make different sizes - S, M, L, etc. That's really my only complaint or "con" to ordering these.
I think they are a great concept and I like the fact that I can throw them in the washer and dryer.
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Reviewed in the United States on June 8, 2024
★★★★★ 5
Actually works, and really well
Color: Original Grey
I bought these because I got them on a great deal and was quite skeptical, but they actually worked exactly as advertised and I saw a huge difference after the first night! I understand why they don’t cover the whole foot like a regular sock (it would be stifling), but it would be incredible if they made a pair that go forward enough to cover the ball of the foot. One pair lasted about 3 weeks before the moisturizer wore out (I did notice a dropoff after washing, so for best results put them on when you’re clean and just for overnight, so you can avoid washing).
Apologies for no photos- no one wants to see the before photos. These work so well I’ve just come back to order more even though I’m now paying full price. Definitely, definitely recommend.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Comfortably and works
Color: Original Grey
❤️ I used these with magnesium lotion on my heals for 3 nights, soaked my feet every morning and cracked heals are gone!
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Reviewed in the United States on April 25, 2026
★★★★★ 5
A game changer for deep heel cracks and psoriasis!
Color: Original Grey, Color: Original Grey
If you have deep cracks or psoriasis on your heels, get these they are a total game changer! They hold in Vaseline and topical meds perfectly while I sleep, providing much needed relief without getting all over my sheets. My heels are healing faster and my callouses are softer and don’t split open because the moisture is trapped against the skin all night with the built in gel cushion lining instead of rubbing off. So much hydration.
The fact that it is a 2 pack is perfect because while one pair is being washed and drying, you still have a set to wear. Very soft, stretchy, breathable, and easy to sleep in. I highly recommend them!
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Reviewed in the United States on January 31, 2026
★★★★★ 5
Great item!!
Color: Original Grey
These socks actually work!!!
No more split skin on my heels!!
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Reviewed in the United States on May 9, 2026