Frequently Asked Questions

GOOZEEZOO is a specialized electronics brand focused on amateur radio and electronic equipment. The company offers a comprehensive range of products including Software Defined Radios (SDRs), antennas, vector network analyzers, spectrum analyzers, digital hotspot equipment, and various accessories for ham radio operators and electronics enthusiasts.

GOOZEEZOO products are primarily available through Amazon, which serves as the main retail platform. You can find the complete product catalog on the official GOOZEEZOO Amazon store. All products include Amazon's customer service, fast shipping, and return policies for your convenience.

Yes, GOOZEEZOO products come with manufacturer warranties that vary by product type. Most electronic equipment includes a 1-year warranty covering manufacturing defects. Specific warranty terms are provided with each product and through Amazon's product listings. For warranty claims, contact customer support through the provided channels.

Setting up the MMDVM Duplex Hotspot Module involves several steps:

1. Select modem type as STM32-DVM/MMDVM_HS-Raspberry Pi Hat (GPIO)
2. Mount the module on your Raspberry Pi (compatible with Pi Zero, not Pi 4)
3. For duplex mode issues, run: sudo pistar-mmdvmhshatflash hs_dual_hat
4. Access Pi-Star with username: pi-star, password: raspberry for firmware updates

The Malachite DSP2 comes with built-in software and doesn't require additional software installation for basic operation. It features a 3.5-inch touch screen interface with all controls built-in. For advanced features, you can connect it to a computer via USB for CAT control, IQ data transfer, and audio streaming. Software updates are available through the official website using the provided registration code.

Calibration is essential for accurate measurements with the NanoVNA-F V3:

1. Connect the calibration standards (open, short, load) to the test port
2. Access the calibration menu on the 4.3-inch touch screen
3. Follow the on-screen prompts for each calibration standard
4. Save the calibration data for future use
5. Perform calibration at the frequency range you plan to measure

Both are portable vertical antennas, but they serve different applications. The JPC-12 is designed for 7-50MHz operation with 8-band support and includes a sliding regulator for easy tuning. The JPC-350 is optimized for different frequency ranges and applications. Both feature the enhanced spring mechanism for improved reliability and are designed for quick field deployment.

The GA450 is primarily designed for indoor use with its compact 7.9-inch diameter. While it can be used outdoors temporarily, it's not weatherproofed for permanent outdoor installation. For outdoor use, ensure proper protection from moisture and consider the waterproof preamplifier box models for permanent installations.

GOOZEEZOO End Fed Antennas are available in different power ratings. The standard models handle SSB up to 150W, CW up to 120W, and digital modes like FT8 up to 80W. The enhanced 2000W model supports SSB up to 2000W, CW up to 1000W, and FT8 up to 600W. Always check the specific product specifications for your model.

Since GOOZEEZOO products are sold through Amazon, shipping options depend on your Amazon Prime status and location. Prime members typically receive free 2-day shipping, while standard shipping usually takes 3-5 business days. International shipping is available to many countries through Amazon's global shipping program. Expedited shipping options are available for urgent orders.

Yes, all GOOZEEZOO products sold through Amazon are covered by Amazon's return policy. Most items can be returned within 30 days of delivery for a full refund if they're in original condition. Electronic items may have specific return requirements. Check the product listing for specific return terms, and contact Amazon customer service for return authorization.

For bulk orders or educational institution purchases, please contact GOOZEEZOO directly through the provided contact information. Special pricing may be available for qualifying organizations, educational institutions, and large quantity orders. Include details about your organization, intended use, and quantity requirements when inquiring.