GA450

I bought this to use as a compact antenna for my DX-380 shortwave receiver, and overall am pleased with its performance. It probides good signals for its compact size, and its directionality teally helps in tuning out local noise sources that interfere with receltion in my area. The construction is solid and it is easy to use.

Im giving it 5 stars because it does pick up AM radio stations with directivity and noise rejection. It works. I don't know how flat the return loss is on frequency ranges, but it does received well. I did not use the external amplifier. I plugged the loop directivity into my spectrum analyzer in a passive configuration. Loop performes like a loop. With sharp nulls broadside.

I restore vintage tube radios from the 30s through the early 60s, many with shortwave requiring external antenna or similar long wire setups. Purchased this to use with some various radios i have restored to use in my home as show pieces that work fine on even a plain wire antenna of minimum length. Just wanted something that I could use to show to folks how the sets worked without an elaborate setup or ugly wire just strung up, not trying for extreme DX etc. Well, it just injects noise...no real reception except what you could expect from 2 feet of copper wire attached. Took it to my shop and tested the loop with various modulated signals at different signal strengths from signal generator and measured the output with my oscilloscope and...zilch....just noise from the circuit.....it literally won't pass any usable RF thru the circuit...just noise all over the spectrum....maybe I got a clunkers but I've seen enough similar reviews that apparently it's a hit or miss product.....

It is expensive, but performs exactly as described. Follow the directions as provided—they actually do help with getting the best results from the product. The battery lasts longer than I was expecting. It's a good product.

I was using my Grundig and Kenwood TS-530S Receivers without an external antenna, and I could receive a handful of SW Stations with a simple 9:1 Balun, Coax and long Wire. Now with the GOOZEEZOO Active Shortwave Radio Loop Antenna, the amount of SW stations I can receive has increased over the Long Wire/Balun solution. My initial observation when I first used the product is, the potentiometer, feels strange, it does not rotate smoothy. But after using this product for over 2 weeks the Potentiometer is now smooth and works as described in the user manual. Depending on your SW Receiver, tuning the antenna to amplify the frequencies is audible. Once You get close to the frequency range you want to pre-amplify, you can notice the background noise rise as the Antenna Circuit resonates with the frequency range being tuned. I find that the Gain can sometimes overwhelm some Receivers so I simply de-tune a bit until I get a strong audio response with very low noise. I am pleased to enjoy more HF stations for the price that I paid. I would have rated this antenna 5 stars if the front panel knob did not feel so strange at first, and cause the signal to drop out near the center of the rotation. But now that I have used the antenna for 2 weeks, the RF Tuning Control works fine now, smooth and responsive. What I do enjoy is the low noise floor. The SW stations sound great. This indicates that the internal RF amplifier design is quiet, with good RF Gain and acceptable Phase Noise. Just be careful not to overload your RX front end and you will be fine. At the price, you even get a BNC(F) to SMA(M) included for Handheld Ham Portable Receivers. The unboxing was a happy event, and the product is packaged in a professional manner. But for the value received I think it is overpriced. I have been using it for 1 year.

The GA-450 loop antenna is much better than the Tecsun AN-48X indoor loop antenna; receiving 3-STARS. It has the ability to adjust antenna reception with a potentiometer, but its adjustment and/or the loop rotation is cumbersome and unreliable. However, the GA-800 gets 5-STARS. Upon the first SW scan with the Tecsun PL-880, received 200% more stations.

I bought this antenna hoping to pick up more shortwave stations. I have the smaller one GA-450 which has a knob to control the amp signal boost. This one supposedly does this automatically, and reduces noise. Unfortunately, I picks up more hash (bad) noise (it is due to the bias tee circuitry inside the black base), and it has more bad noise than the GA-450. I have tried separating the loop from the base, which works a little better, but not as good as the GA-450. The automatic circuitry never really works as it should, and I get less than stellar reception. That being said, is this better than the antenna that comes with shortwave radios? Yes, but for this much money, it should be a lot better. Unfortunately, it is marginally better, and not worth the price. I have seen online how some people have taken apart the base, used better circuitry or improved upon what is inside (specifically the battery and charging circuit) and this becomes an amazing antenna. Maybe in my spare time, I will try that. I prefer the GA-450 over this for most applications, but in a fixed application, use the MLA-30+ loop antenna. It is amazing for $30, and the cost of building a mast (I used PVC pipes). This one is a pass and potentially a project for me when I have some free time. Save yourself money and get the MLA-30+ loop or the GA-450. Hope this helps.

This antenna works surprisingly well. You can tune the loop with the dial for those wondering if the dial is simply a gain control. The gain is 20db and you find the sweet spot with the dial. I have the loop mounted outside for better reception. It doesn't compare to a larger antenna like a full wave loop or similar, but if you don't have the space for a large antenna this is a great alternative. I recommend it for those with space restrictions or for travel.

didn't really make much difference when turned on

Precio muy elevado por el servicio que provee

This unit may have a manufacturing flaw. The reception is extremely poor.

Really nice compact little Antenna and it came with everything you might need to install it close to or far away from the receiver, but I didn’t find it improved the reception that much so I returned it.