Waveform Griddy Grid Parabolic Antenna Kit - High Gain Long Range

In this review of the Waveform Griddy parabolic grid antenna, the bottom line is simple: it is for anyone who can achieve line of sight to a distant cell tower or WiFi access point and needs significantly more signal and higher data rates. The reviewer found Griddy adds measurable gain to weak links and is especially useful for boosting modem or router performance when a clear path to the transmitter exists. Installation is straightforward for a handy user and the antenna's ultra-wideband coverage makes it compatible with 4G LTE, 5G NR and WiFi devices.

Key Features

• Ultra-wideband gain: Griddy delivers up to 26 dBi across its bands, which can turn a marginal connection into a usable high-speed link when aimed correctly.
• Multi-band support: The antenna covers 600-960 MHz, 1700-2700 MHz and 3000-6500 MHz, so it works with most LTE, 5G NR and WiFi devices that accept an external antenna.
• N-Type connectors: Comes with 50 Ohm N-Type ports so you can adapt it to routers, boosters or hotspots using the proper adapter cable.
• MIMO capable: You can deploy two or four antennas for devices that support multiple external antennas to improve throughput and link stability.
• High directional performance: The parabolic grid design focuses energy tightly, which improves range and speeds when you have line of sight to the tower or access point.

Who It's For

The Waveform Griddy is best for rural broadband users, remote job sites or anyone using an outdoor mounting location with a clear line of sight to a distant tower or access point. It is well suited to people using LTE modems, routers or cell boosters who want to squeeze faster, more consistent data from a weak served cell.

It is not ideal for users who cannot get a direct line of sight or for installations where signals must pass through heavy foliage or multiple buildings, since Griddys high gain and narrow beam make it sensitive to obstructions. If you need an omni or wide-beam indoor antenna, look elsewhere.

Pros & Cons

Pros

• Very high gain across many bands gives a large potential improvement in throughput when aimed correctly.
• Wide frequency coverage supports 4G LTE, 5G NR and WiFi devices with external antenna ports.
• MIMO compatibility allows multiple units to be used for better real-world speeds and stability.
• Durable grid parabolic form factor that mounts like common rooftop antennas.

Cons

• Performance drops significantly without clear line of sight; trees and buildings reduce effectiveness.
• Assembly experiences are mixed among customers, so expect some time and patience for mounting and alignment.

Specifications

Product	Grid parabolic antenna kit (antenna only)
Peak gain	Up to 26 dBi
Frequency bands	600-960 MHz, 1700-2700 MHz, 3000-6500 MHz
Connector type	50 Ohm N-Type
Use cases	Works with cell boosters, modems, routers and gateways
MIMO	Supports 2x or 4x deployment for MIMO devices

Our Verdict

The Waveform Griddy is a strong value for anyone who can provide a clear line of sight to a tower or access point and needs high directional gain to improve speeds. It is a practical upgrade for outdoor-mounted modems, boosters and routers, offering wideband compatibility and MIMO potential, but buyers should plan for careful aiming and assembly to get the best results.

Frequently Asked Questions

Do I need line of sight for this antenna?
Yes. Griddys high gain and narrow beam require clear line of sight to the tower or access point for best performance.

Will it work with my LTE router or booster?
In most cases yes, but you will need the correct adapter cable to convert the router or booster antenna ports to 50 Ohm N-Type.

Can I use more than one antenna for better performance?
Yes. If your device supports multiple external antennas, using two or four Griddy units can improve MIMO throughput and link stability.