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  • Kaito KA33 Amplified Active Loop AM and Shortwave Antenna
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Kaito KA33 Amplified Active Loop AM and Shortwave Antenna

by Kaito

List Price: $60.00
Price: $39.99 & FREE Shipping. Details
You Save: $20.01 (33%)
Only 20 left in stock (more on the way).
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  • Engineered Indoor Antenna - Aids receptions in concrete and metal buildings
  • Portable Loop Antenna - Compact sized, easily hangs from windows, etc. & attaches
  • Enhances AM & SW Performance & Reception - Tested among Best indoor world-band antennas
7 new from $37.95

Frequently Bought Together

Kaito KA33 Amplified Active Loop AM and Shortwave Antenna + Sangean ANT-60 Short Wave Antenna
Price for both: $49.58

Buy the selected items together

Technical Details

  • Brand Name: Kaito
  • Model: KA33
  • Item Height: 6 inches
  • Item Length: 9 inches
  • Item Weight: 0.38 pounds
See more technical details

Product Details

  • Product Dimensions: 9 x 2 x 6 inches ; 6.1 ounces
  • Shipping Weight: 7.2 ounces (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B000H7NVX4
  • Item model number: KA33
  • Average Customer Review: 3.7 out of 5 stars  See all reviews (39 customer reviews)
  • Amazon Best Sellers Rank: #40,253 in Electronics (See Top 100 in Electronics)
  • Date first available at Amazon.com: July 26, 2006

Product Description

One Year Manufacturer's warranty. Do you want to increase the reception of your radio's whip antenna? Looking for a portable indoor AM or SW Antenna with an Easy Connection? ENHANCES PERFORMANCE AND RECEPTION - AM & SW Your Kaito KA-33 AM / Shortwave Antenna has tested among the best indoor world-band antennas. This active loop antenna will significantly improve your AM or SW performance and reception. EASY CONNECTION This portable antenna hangs from a window or a curtain and attaches directly to a 1/8" ANT jack or easily clips to your radio's existing antenna. DESIGNED FOR INDOOR USE ONLY FREQUENCY RANGE Shortwave: SW 3.9 - 22 MHz Enhances the shortwave reception of any desktop or portable radio. The included ferrite bar antenna coupler can improve regular AM. WHAT'S INCLUDED - KAITO ACTIVE LOOP ANTENNA Ferrite bar antenna coupler for use on AM band Controlling unit, amplifying unit, suction cup, connecting cable, connector, soft antenna loop, clip and ferrite bar antenna coupler Two "AAA" required ( not included ) Dual Outputs Manufacturer's limited 1 year Warranty

Customer Reviews

I am very pleased with SW reception.
I might add I have a Kaito 1103 & had been using the enclosed long wire antenna which worked OK.
Bob W
The on off switch fell out in one of the many falls, because of the useless suction cup.
George Plotkin

Most Helpful Customer Reviews

52 of 55 people found the following review helpful By Bill McLean VINE VOICE on August 30, 2006
Verified Purchase
Yes, the antenna did give some improvement in reception for both SW and MW(AM) broadcasts. However, potential buyers new to SW radio should understand that it amplifies interference along with weak radio signals. But on fairly clean weak signals it is really helpful.

It should also be noted that my home location is not favorable for DX-ing - either SW or MW(AM) radio. In places like Mexico City however, this little antenna would most certainly excel - even when used with cheap SW or MW radios. My Kaito radio, when used with this antenna, compares unexpectedly well with my 15 pound Grundig Satellit 800 - when using only the Grundig's built-in antenna's - and using headphones on both radios.

Lastly, the antenna comes with several small pieces and perhaps should be kept together in the original box. For me this would take up too much room in my suitcase. I'll probably take the radio and leave the antenna at home when going on short trips.
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36 of 38 people found the following review helpful By Ann E. Revelle on January 9, 2009
This is a great product for what it does and for its cost. It is a totally indoor active antenna system that works for both mw (am) signals from 520-1710 KHz and for sw signals from ~3.9-22 MHz. According to detailed technical reviews it works best above 9 MHz, but I have found very good amplification even as low as 5 MHz as well. Very little amplification is available above 22 MHz so this is not the product you want for CB radio activities for example. Power is supplied by two AAA batteries resulting in very low noise and with very stable and long duration operation. There is an on-off switch on the main control unit with a red LED light that readily indicates the status of your activities (so that you don't forget to turn it off!). There is also an analog switch on the opposite side of the control unit from the power switch that needs adjustment as you change operating frequencies on your radio. It is a bit finicky to operate and a fairly small wheel to slowly turn, but it can be easily adjusted especially if your radio has a signal strength meter to watch while the wheel is turned.

The mw amplification works by induction by placing a small (supplied) ferrite rod close to the ferrite rod within your radio using a supplied set of clips (including a grounding clip for appropriately equipped desktop radios). The sw amplification works through a hanging wire attached to an elevated, triangular shaped arrangement with an extended, but collapsible telescopic antenna attached by a set of wires to a suction cup-hook arrangement. Both bands are amplified after first passing through a supplied heart-shaped amplification-junction box with a simple slide switch that can be set to either mw or sw depending on your current region of listening interest.
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32 of 38 people found the following review helpful By AudiophileHeadCase on November 2, 2012
I have the Degen version of this "active antenna". It is an exact match to the Kaito unit. Only the name on it is different. I'm experienced with antennas having built outdoor folded dipoles, specialized AM loop antennas, worked with various antenna tuners and antenna preamps, etc. so using an "active antenna" is nothing new to me.

Let me tell you, this Kaito product is pure China-made cheap junk. It is an extremely noisy preamp. It creates more of a noise boost than a signal boost and the tuning wheel is very tricky to tune to the sweet spot. The quality of the materials used in the construction of this product is also extremely low.

The best way to improve AM reception is with one of the Kaito red AM loop antennas or one of the grey Terk AM loops. I've used both loops and they work amazingly well for the AM band. The closer you can get these AM loop antennas to the window the better your reception will be.

For SW you really need to put an antenna outside your house or apartment. You can use a 50 foot roll of insulated copper wire strung between two high posts as your SW antenna system. Feed the signal into the house using quad-shield RG6 cable to minimize the pick-up of noise from electrical devices. You can use a cheap 300-ohm flat twin line to coax balun of the type that come with many TVs to connect the RG-6 coax to the copper antenna wire outside the house. The balun will help match the impedance of the 75 ohm coax to the much higher impedance a random wire antenna so that you get maximum signal transfer off the antenna. One leg of the balun 300 ohm flat cable goes to the copper antenna and the other leg of the 300 ohm flat cable should be routed to ground. You can find small 300 ohm flat twin-line to 75 ohm coax baluns for about $5.
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18 of 21 people found the following review helpful By MTW on March 22, 2011
Verified Purchase
Works as advertised for SW, so so on AM(MW). I bought this for SW reception and it is a jewel at pulling in stations that were ever so faint before. It took a little while, trial and error, to find the best place for antenna to hang. Once I found a place for the antenna stations came in much clearer. I was never able to pick up Radio Japan clearly before, now it comes in very clear. The tuning on the antenna is very sensitive and took a little getting used to but I found that once slowly tuned within a band I didn't have to re-tune until I switched SW bands. The only thing I really would like to see in the kit would be a complete manual and adapter for PAL antenna connector. The instructions are on the back of the box. I ended up cutting the clips off and soldering the ends to the PAL connector that came with my CCRANE CCRADIO-SW. Once I did that reception improved due to the fact that the ground clip kept slipping off connection. I am very pleased with SW reception. For AM I tried the ferrite bar moving all over radio in area of internal antenna, there was a small / marginal improvement in reception. This may not be a fair observation because the area I live in is notoriously bad for AM reception. A better test will be when I take radio and KA33 antenna out in the boonies during camping season where there won't be any interference. One last point keep your box and plastic blister to store all parts/pieces in if you take your antenna down, short of having a storage bag it's a good way to store all the stuff.
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