The SLP is a toroidal magnetic antenna. The SLP loop antenna is a popular broadband antenna. It is an effective antenna for short-wave listeners SWL and amateur radio enthusiasts HAM to receive medium-wave and short-wave in the limited living area of the city. Frequency coverage: kHz to 30 MHz. Excellent directionality can help you reduce noise and improve signal-to-noise ratio, and can dig out weak signals that are overwhelmed by noise when conventional antennas are received.

The SLP loop antenna is easy to install and can be easily installed on balconies, rooftops, and other small, compact, low-profile installations without worrying about neighbors and property opposition. Another advantage of the SLP loop antenna is that it is directional.

By rotating the antenna so that the dummy point of the antenna is aligned with the interfering signal, the specific near-field interference can be minimized. Details of the SLP loop antenna: Do not connect it to the transmitter as it will cause the preamplifier to be damaged.

Local radiation noise suppression up to 30 dB compared to long-haul antennas 8-shaped patterning provides deep dummy points to further reduce interference Self-contained feeders simplify the installation process.

Simple structure, easy to install to the balcony, rooftop and other locations. No manual adjustment required Install low-key, no need to worry about neighbors and properties. Modular design, easy to install and maintain. Stainless steel ring vibrator, easy to install and easy to maintain. Rainproof enclosure for long-term fixed outdoor use. Main coverage: kHz to 30 MHz note: Need to prepare a PVC sheath tube for support, any diameter, need to pay attention to the need to have a certain strength, any community hardware store can buy.

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You can also use existing bamboo poles, wood poles, etc. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the picture.

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100kHz-30MHz MLA-30 Loop Antenna Active Receiving Antenna for Short Wave Radio

Terms of sales. Return item must be unused and in the same condition you received it, in original packaging.The MLA is a toroidal magnetic antenna. The MLA loop antenna is a popular broadband antenna. It is an effective antenna for short-wave listeners SWL and amateur radio enthusiasts HAM to receive medium-wave and short-wave in the limited living area of the city.

Frequency coverage: kHz to 30 MHz.

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Excellent directionality can help you reduce noise and improve signal-to-noise ratio, and can dig out weak signals that are overwhelmed by noise when conventional antennas are received.

The MLA loop antenna is easy to install and can be easily installed on balconies, rooftops, and other small, compact, low-profile installations without worrying about neighbors and property opposition.

Another advantage of the MLA loop antenna is that it is directional. By rotating the antenna so that the dummy point of the antenna is aligned with the interfering signal, the specific near-field interference can be minimized. Details of the MLA loop antenna: --Do not connect it to the transmitter as it will cause the preamplifier to be damaged. Self-contained feeders simplify the installation process.

Please allow cm error due to manual measurement. Please make sure you do not mind before you bid. The colors may have different as the difference display, please understand. We accept PayPal only.

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Delivery time depends on destination and other factors. KWLA 0. Similar Items. Detail Image. Payment 1.Home-made antennas can greatly improve the performance of AM and FM radios, short-wave receivers, and scanners. If you are a talk-radio fan then experiment with the AM band antennas and you will be able to hear shows from all over the country with surprising clarity. Short-wave receivers are always coping with weak signals and they must have a good antenna to perform adequately.

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Scanners can pick up local police and two-way radio with the little telescoping antenna provided but with good antennas a scanner becomes an amazing ear on the world nearby. No pre-amp, filter or other receiver refinement offers anywhere near the level of performance improvement t that a well-designed antenna offers.

The results can be quite satisfying, leaving no doubt that the project was well worth the effort. In the past, designs that incorporated an amplifier in the antenna were called "antennafiers" so perhaps this is a "loopifier".

The differential amplifier solves matching issues and the varactor tuning gives excellent out-of-band rejection for even cheap receivers. I think the good common-mode rejection from the differential amplifier eliminates the need for a shield, too. This active antenna for the shortwave band provides surprising performance, even indoors. As the name implies, the main loop is made from a Hula-Hoop with the metallic paint stripped off and a single turn of 14AWG copper wire inserted inside the hoop.

There isn't any need to remove the paint; mine was flaking and I didn't like the looks. Half way through I regretted my decision! These hoops are basically thin-walled plumbing tubing with a water-tight connector holding the ends together.

100khz antenna

Mine was actually filled with water to make a "swish-swish" sound, supposedly. The ends of the hoop pass through two holes in a plastic project box and are then joined together. A hole was drilled in the middle of the original black tubing connector to bring out the ends of the insulated house wiring heavy white wires. This single turn of wire has about 4 uH inductance.

A couple of screws and some epoxy holds the loop in position. The screws were added as an afterthought, cracking the epoxy a bit, because the epoxy doesn't really adhere to the tubing very well.

The solid copper house wire is too stiff to connect directly to the circuit so a couple of lengths of hookup wire were added.

A little piece of tinned copper circuit board material holds the circuitry.A complete kit. Only had to make a frame for it.

Works great and demonstrates directivity and nulls. For the price it can't be beat.

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It is a lightweight device which makes it even easier to support and move around. No need to string long dipoles or random wires. This little antenna was the best solution. Very Nice loop for the cost and easy to modify to make it even better. I had the gain meter up and now had to turn it back down. Next will be to replace the cable to reduce the noise floor. Im adding a second box and feeding the line into a BNC post soldered in.

Very satisfied. To bad not to transmit with it, but nice for sdr radio :. Performs much better than expected.

100khz antenna

For the price this receive loop is of good value. Frequency coverage: kHz to 30 MHz. Cant beat it for the price. You can pull in the world with this. Nice cheap alternativ to all other magnetic loop antennas. Excellent value and a very good performer.

Good for the money For the price this receive loop is of good value.It is an effective antenna for short-wave listeners SWL and amateur radio enthusiasts HAM to receive medium-wave and short-wave in the limited living area of the city.

Frequency coverage: kHz to 30 MHz. Excellent directionality can help you reduce noise and improve signal-to-noise ratio, and can dig out weak signals that are overwhelmed by noise when conventional antennas are received. The MLA loop antenna is easy to install and can be easily installed on balconies, rooftops, and other small, compact, low-profile installations without worrying about neighbors and property opposition. Another advantage of the MLA loop antenna is that it is directional.

By rotating the antenna so that the antenna's dummy point is aligned with the interference signal, the specific near-field interference can be minimized. Details: Do not connect it to the transmitter as it will cause the preamplifier to be damaged. Self-contained feeders simplify the installation process.

Simple structure, easy to install to the balcony, rooftop and other locations. No manual adjustment required Install low-key, no need to worry about neighbors and properties. Modular design, easy to install and maintain. Stainless steel ring vibrator, easy to install and easy to maintain. Rainproof enclosure for long-term fixed outdoor use Please Note: Need to prepare a PVC sheath tube for support, any diameter, need to pay attention to the need to have a certain strength, any community hardware store can buy.

You can also use existing bamboo poles, wood poles, etc. Note: Please allow minor errors due to manual measurement. Item color displayed in photos may be showing slightly different since monitors are not calibrated same. PayPal is the only online payment method we accept. And please make sure that your PayPal registed address is the same with your eBay registed address.

100khz antenna

Please feel free to contact us if you don't receive the package within one week. We will help you to solve the problem, thanks.Size: as shown in picture. Frequency coverage: kHz to 30 MHz.

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An effective antenna for short-wave listeners SWL and amateur radio enthusiasts HAM to receive medium-wave and short-wave in the limited living area of the city. USB power supply.

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Stainless steel ring vibrator. Rainproof enclosure for outdoor use. Reduce noise and improve signal-to-noise ratio. Fine workmanship and good performance. Easy to install and use.

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Can be easily installed on balconies, rooftops etc. Long service life. Package included:. Do not connect it to the transmitter as it will cause the preamplifier to be damaged. Please allow cm errors due to manual measurement.

Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same. Payment is needed to receive within 7 days after deal. We only accept PayPal. PayPal is the only online payment method we accept. And please make sure that your PayPal registed address is the same with your eBay registed address.

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Ring Mla-30 Active Loop Antenna Amplifier 100khz - 30mhz for Shortwave 2019 SW

It needs to pay the extra shipping cost! Order can not be shipping to any P. O boxes.Use this chart as an aid in trimming the length of your antenna. It gives you an idea of the change in wire length needed to move antenna resonance a specific number of KHz.

Lengths are estimates. Many factors will affect their exact value. You have measured the SWR of your 40 meter dipole at various frequencies across the band. You have determined that the SWR is lowest at 7. You actually want the lowest SWR to occur up in the sideband portion of the band, so you need to move resonance up in frequency about KHz. The overall length of the antenna is shortened a total of 20 inches.

Lengthening or shortening the antenna is done at the end insulators. To shorten the antenna, unwind the antenna wire as it wraps around itself at the end insulator.

Move the insulator several inches toward the center of the antenna. Rewrap the antenna wire to secure the end insulator. Do not cut the wire. Wrap it back around the antenna wire.

100khz antenna

You may need to increase the antenna later. Antenna Trimming Chart Use this chart as an aid in trimming the length of your antenna. Dimensions are for each leg of a half-wave dipole For quarter-wave antennas i. Example You have measured the SWR of your 40 meter dipole at various frequencies across the band.


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