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was installed correctly. Make sure U3 is installed correctly. Check D1 for polarity. Check the SIP resistor (RP1) for proper orientation.

No Display: Make sure the 14-pin ribbon cable is installed and oriented properly. Be sure the nylon washers are in place on the two nuts closest to the outside. Turn R25 (LCD Contrast) fully counter- clockwise for initial settings. Then adjust for best viewing.

Can't get 0.0 volts on REV with HF remote sensor: Make sure T1 was wound correctly in the HF remote sensor. Make sure the #18 gauge wire from the PC board passes through the center of T1. Check polarity of D1 and D2 on the HF board.

Alarm does not work. Check Q1 and D5 for orientation. Check menu for proper swr setting. Be sure to note that the relay alarm is different than the LED alarm.

Tech Support: Telephone technical support at 410-586-2177 is available most weekdays from 8 am to 9pm Eastern Standard Time. Replies by FAX (410-586-8475) are welcome; e-mail (ldg@ldgelectronics.com) is also answered on a daily basis.

Last Resort: As a last resort only, LDG Electronics will attempt to repair any problems. We have a flat fee of $40 plus parts to repair a DWM-4 (most resistors and capacitors are included in that fee). The 68HC11 chip is the most expensive at $25.

We will not attempt to repair any unit that has been soldered with acid core. We reserve the right to refuse repair due to excessive problems or damage due to construction.

Before any unit is sent to us, you must first call (or e-mail) to get return authorization. All units sent back must be prepaid, either by check, money order or Credit Card unless other arrangements are made. Package the unit carefully and keep in mind that we will use your packaging to return the unit back to you. Include a description of what problem you are having along with your name, address and a phone number that you can be reached at in case we have questions. Repairs average about 3 to 6 weeks, depending on the particular problem.

If you have an idea of how the unit can be made better (in software or hardware), please send a description of your upgrade. If we use it for the DWM-4, we'll send you a free upgrade. Future upgrades will be available for about $15 with 68HC11 chip trade in. If you purchased the kit from LDG, we will notify you when future upgrades and modifications are available through the LDG Newsletter. If you purchased the unit through a distributor and would like to be added to our mailing list, just drop us a note by mail, fax or e-mail.

Feedback: We encourage everyone who builds the DWM-4 kit to drop us a note (card, letter or e- mail preferred) to let us know how well it works for you. We're also always on the lookout for photographs of the DWM-4 in use. We frequently place pictures that we receive into the DWM-4 Newsletter or on our Web site (www.ldgelectronics.com).

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Macsense Connectivity DWM-4 manual
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DWM-4 specifications

The Macsense Connectivity DWM-4 is a highly versatile and robust wireless module designed for seamless connectivity in various applications. Tailored for industries and systems requiring reliable data transmission, this device combines advanced technology with user-friendly features to ensure a superb performance.

One of the standout features of the DWM-4 is its support for multiple wireless standards, providing compatibility across a range of protocols. It is designed to operate on both Wi-Fi and Bluetooth networks, making it an excellent choice for a variety of devices, from IoT products to industrial machinery. This hybrid connectivity ensures that the DWM-4 can adapt to different communication requirements, improving flexibility and user experience.

The DWM-4 boasts a compact design, which is essential for applications where space is at a premium. Its lightweight structure enables easy integration into diverse setups, minimizing the need for extensive modifications or adjustments. Moreover, the module is built to withstand challenging environmental conditions, making it suitable for outdoor and industrial applications.

Featuring low power consumption, the DWM-4 is engineered to prolong battery life in portable devices, a critical factor for users concerned about energy efficiency. This focus on energy conservation allows developers to create products that operate longer without frequent recharging, enhancing usability and customer satisfaction.

In terms of security, the DWM-4 implements robust encryption protocols, safeguarding data transmissions against unauthorized access. Its advanced security features are crucial for industries where data integrity is paramount, such as healthcare and finance.

Ease of use is another hallmark of the DWM-4. With an intuitive interface and comprehensive documentation, developers can quickly set up and configure the module, simplifying the integration process. Additionally, the device is supported by a community of users and developers, ensuring that assistance and resources are readily available.

In conclusion, the Macsense Connectivity DWM-4 stands out as a powerful and adaptable wireless module well-suited for modern applications. Its ability to support multiple wireless technologies, coupled with its compact design, low power consumption, security features, and ease of use, makes it an ideal choice for developers looking to enhance connectivity in their projects. Whether for industrial use or consumer products, the DWM-4 is poised to deliver reliable and efficient performance in a wide range of scenarios.
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