TWAYRDIO Yagi Antenna UHF 400-470Mhz,High Gain Outdoor GMRS Vertical Base Antenna,7dBi Receiver Directional Yagi for Ham Radio,Repeater System,433mhz Device,Fm Scanner

Initial review:Antenna is easy to build, easy to tune. Kind of a mid quality item. I wonder how water proof it is, we'll see how long it lasts in the weather.I'll update after I use this for a while.Update: I've been listening around the channels and have heard stores that use FRS walkie-talkies four miles away from me. It definitely will cover the neighborhood.

I bought this antenna to use as a Vertical to use with a 433mhz Gate Opener. I needed to boost the 433 signal that was limited to 800 feet Line of Sight under power lines. Metal in close proximity (such as a metal mast does affect the tuning To tune there is an adjustible block that induces signal onto the radiator .If you mount the block at the end of the shrink tubing it will be near 433mhz and be quite low to 425mhz.the best way to fine tune is in-situ mounted on a 1.5 inch PVC Mast at the height you'd like to use.then use a tuner to adjust the tuning block. I suggest building the antenna on you kitchen table.This antenna has 2 tiny set screws and 3 Phillips screws to secure the aluminum Reflector, Director and Radiator Elements to the Square frame. Make sure the Screws are tight keeping the Radials tight. There should be no movement of any parts of this antenna. The instructions are good. It has a potential Gain of 9 decibels. a 3 decibel gain doubles the signal size. The Vertical Beam With is 45 degrees which is excellent - Not too narrow. If tuning is critical you will accomplish 1.4 SWR but you will need to tune IN-SITU with the cable employed for you use. 50 ohm cable is best. RG-6 will work but the SWR may be higher. Point the Antenna in the transmitter direction and secure to mast before testing. The use of a Comet or other antenna analyzer 433mhz capable meter is suggested for the most accuracy.If the gain is not enough , consider the 11DB Gain version of this antenna. This antenna will Transmit and Receive with most Remote 433mhz Remote Control, 70cm Ham Radio, GRMS and Weather Radio.Receivers 400-470mhz See specs for details.

I'm giving this 4 out of 5 only because it wasn't clear in the title that this is a directional antenna. That being said, the antenna works really well. I was about 5 miles away and it was like talking to them 5 feet away. It was easy to set up and great value for the money. I ended up keeping it even though I didn't know it was directional.

Easy to put together and turne, good price.

Very pleased with the construction and functionality of the antenna! Really does improve range.

Your products are very good. They work as expected.

Nothing at a wrong with this antenna.Very wide banded, well beyond advertised.

This is a great Yagi, power handling and frequency range are perfict for many ham radio projects such as links or base to repeater applications.The only week point that I see, is the small screws to hold the elements to the boom. If you have rivets available, I would use them insted of the small screws.Other than that, it's a great product for home use!