The Best Amplifier Boosters for Over The Air TV Antennas

Our Picks for Best Amplifier Boosters for Over The Air TV Antennas - Installing and setting up an over-the-air TV antenna is a great way to get free TV.

Since no internet is needed, receiving free other-the-air stations is the only truly free TV option available.

If you live in a city, receiving a good broadcast signal is likely not a problem with the right TV antenna.

But what if you have a problem receiving a signal with pixelation and signal loss?

Thankfully there is an answer to this by using an over-the-air digital TV signal booster amplifier in combination with a TV antenna to get a good signal.

A booster can also help if multiple TVs are being used from the same antenna as the signal strength can degrade with multiple TVs pulling a signal.

If you do use more than one TV, be sure to get an amplifier with more than one output port.

Installation is simple enough, with a coax cable going into the input and output to a TV. The booster will increase the signal power as it goes through the box.

TV signal amplifiers can be outdoor or indoor, depending on your setup.

There are many units available, with some of our favorite picks below.

As always, be sure to read reviews on Amazon, forums, or elsewhere to be sure a unit is a right pick for you.

*This post contains affiliate links.
Our Picks for Best TV Antenna Over-The-Air Signal Boosters

1. Antennas Direct TV Distribution Amplifier


Available Here on Amazon

Available Here on Wallmart

Pros

• 18db Gain
• Can be used with multiple TVs

Cons

• Limited to boosting 4 TVs

The Antennas Direct Amplifier has different packages with up to 8-Port for output depending on how many TVs you have.

The units can give an 18db gain per output for multiple TVs.

If you are getting bad to poor OTA TV reception, the Antennas Direct Amplifier is a good unit to get.

They also have many other amplifier boosters, including preamps and filters.

2. Winegard LNA-200


Available Here on Amazon

Available Here on Wallmart

Pros

• Preamplifier made to boost a TV signal
• Mounted at antenna to boost signal to multiple TVs

Cons

• Only works with non amplified antennas

The Winegard LNA-200 is a newer improved unit from the LNA-100.

The LNA-200 costs more and may not be needed as the LNA-100 works well enough for basic boosting.

If you have a very bad signal, the LNA-200 model would be a much better unit to get.

3. Channel Master LTE Filter


Available Here on Amazon

Pros

• Filter out cell signals that can distort TV broadcast
• Improves TV signals when near a cell tower

Cons

• Will be no benefit in a low cell usage location

Channel Master has many good products, including the LTE Filter, which gets rid of all the cellphone signals that can cause problems with TV broadcasts.

It will help with pixelation or channel loss in a highly used LTE area such as close to a cell tower or a big city.

It is not an amplifier but a filter for spots where cell signals interrupt TV signals.

Some have had good success with the filter, while others see little to no results. It is a good unit if you live in a high-traffic LTE cellphone location.

4. ANTOP Smart Boost Amplifier


Available Here on Amazon

Available Here on Wallmart

Pros

• Has a dial to adjust gain
• Amplifies FM, VHF and UHF signals

Cons

• Manually adjusting for multiple stations may cause issues

The ANTOP Smart Boost Amplifier is built with a dial to help tune in the range of the TV signal.

It is a good unit that can help reduce freezing and pixelation caused by weak TV signals.

If you can receive TV stations but go in and out or are fuzzy, this is an excellent model to get a clearer signal.

As with most TV boosters, a signal will already need to be coming in with a booster, only helping to clear the signal up.

5. Winegard LNA-100


Available Here on Amazon

Available Here on Wallmart

Pros

• Small low-cost unit
• 20 dB Gain

Cons

• Only amplifies the signal for one TV
• Indoor use only

Winegard makes many good wireless products, including the LNA-100 amplifier.

It has a rated gain of 20dB, which makes it a good unit.

It uses a USB plug for power which most TVs have these days but be sure to check so the unit can get power.

Of course, a wall A/C USB power adapter can also be used if needed.
 

6. RCA TVPRAMP1Z


Available Here on Amazon

Available Here on Wallmart

Pros

• Preamp mounted at antenna to boost signal
• Amplifies UHF and VHF

Cons

• Needs to be mounted outside at antenna

The RCA TVPRAMP1Z is an outdoor unit that pre-amplifies a signal before it goes into a home.

This makes it a good unit for anyone who needs to mount a TV signal booster outside.
 

7. Antop Amplifier Signal Booster with 4G LTE Filter


Available Here on Amazon

Available Here on Wallmart

Pros

• Amplifies FM UHF VHF signals
• 3G and 4G Filter

Cons

• Only amplifies the signal for one TV
• Indoor use only

Antop makes this low-cost High Gain Signal Booster that is small but effective.

The setup is easy by placing the inline booster between the antenna and TV on the coaxial line.

The kit comes with the inline signal booster, power cable, and USB wall charger if needed. Many TVs now have a USB port to plug into for power.

It is built for indoors and is a good low-cost booster for those on a budget.

Best OTA TV Antenna Amplifier Booster Comparison Chart

NAME	PLUG TYPE	GAIN
Antennas Direct TV Distribution Amplifier	Coaxial	18db
Winegard LNA-200	Coaxial	18 dB
Channel Master LTE Filter	Coaxial	----
ANTOP Smart Boost Amplifier	Coaxial	14dB
Winegard LNA-100	Coaxial	20dB
RCA TVPRAMP1Z	Coaxial	22db
Antop Signal Booster with 4G LTE Filter	Coaxial	10dB

Will an Antenna Booster Amplifier Give Me More Channels?

In many cases, yes, a booster or amplifier will bring in more stations.

The antenna will still need to receive a signal as an amplifier can only boost a signal.

If the signals are weak or pixelated, a booster amplifier will help receive a more clear signal.

A booster or amplifier can help greatly when a clearer picture is needed.

How Can I Boost My Digital TV Signal?

Installing an OTA booster or amplifier will greatly improve a TV signal.

There are many units available with our favorite picks above.

Can an OTA Booster Work on Multiple TVs?

Yes, there are many units that can not only boost a TV signal but also split it to work with multiple TVs.

In fact, a booster is often required when more than one TV is used since the signal can degrade.

When multiple TV sets are used a booster is set up to improve the signal.

What is the Difference Pre-Amplifier vs. Inline Amplifier

A pre-amplifier will boost the signal at the antenna giving maximum amplification.

An inline amplifier boosts the signal at any point on the line, usually at the TV.

Pre-amplifiers are a good option when multiple TV sets are used since they boost the antenna’s signal.

Inline amplifiers are a good option when a single TV is used, or only one set is having a problem, usually from a long coaxial run.

What Does a Booster Do for an Antenna?

An antenna is needed to receive an over-the-air TV signal and send it to a TV.

After a signal is received, a booster can be added to clear up a signal, getting rid of pixelation or bad reception.

A booster can not receive a signal; only improve a signal already being transmitted.

Can I Use Two Antenna Amplifiers?

Yes, more than one amplifier can be used, and it is very common.

Often a preamp is used at the antenna, and other inline boosters are added to a TV as needed.

Long coaxial runs can affect signal quality at times, with an inline unit needing to be added.

How Do You Install a Pre-Amplifier Signal Booster?

Most units screw onto the coaxial line with an input and output side.

Inline units are often attached directly to a TV with the coaxial cable attached to it.

Pre-amplifiers are usually attached directly to the antenna boosting signal before it goes into a home.
 
Summary
If your digital over-the-air TV antenna is having problems getting a good signal, a booster can help.

There may be cases where the signal is just too far away, but a booster will be of real benefit in most scenarios.

Setting up a TV amplifier is simple as the line from the antenna simply plugs into the input, and the line-out goes to the TV.

There are many good boosters available, with those above simply some of our favorites.

Do you have a favorite TV signal booster? Let us know in the comments below.

Note: Using an amplifier does not mean you will pick up more TV channels even though your signal is amplified.

 source : https://www.wirelesshack.org/best-tv-antenna-over-the-air-signal-boosters.html

Best Outdoor Antenna Installation Tips

Antenna Installation Guide - Hints Tips - Electronics Notes

-Looking for more guidance or want to educate yourself before cutting the cord? Here are some tips tailored to safely installing your outdoor TV antenna.
Please note: Every time you move or reconnect your antenna, you must scan for channels on your television. Consult your television owner's manual for more precise guidelines. We include Quick Start guides with all our TV antennas and also provide them here on our website for free.
Installation tips:

1. Before installing an antenna permanently on a roof or in your attic, test reception in that area and other locations prior to installation. To perform a test, connect the coaxial cable from the antenna to your TV. Then, place your antenna in the desired location. Turn on your TV using your TV and, using your remote, complete a channel scan. Once complete, flip through your TV channels and watch for signal interruptions. Make sure your antenna is installed where you get the best signal and the highest number of available channels. Check It Out
2. Higher is always better. Mount the antenna on your roof or in the attic for optimal performance. These locations are more likely to experience fewer obstacles which cause signal interference between the antenna and broadcast towers.

1. Face the front of the antenna toward the broadcast towers. Even multi-directional antennas require this to achieve the best possible reception. Don't know where your towers are? Visit our transmitter locator or download our free Antenna Point app. 
2. Check your outdoor antenna regularly for secure coaxial cable connections and signs of corrosion. Sometimes debris or humidity can interfere with reception. Where possible, cover all connections and use waterproof sealant when installing an antenna mast. (See our included sealing pads for reference.)
3. Installing your antenna near power lines is dangerous. The antenna must be at least 20 ft. (6 meters) away from all power lines. If any part of the antenna or mast assembly comes into contact with a power line, call your local power company. Do not remove it yourself.

Note: Unfortunately, sometimes antennas are returned to us in perfect working order but were returned due to faulty installation techniques. Continue reading for troubleshooting tips.
Troubleshooting tips:
Spotty reception with accessories:

1. For the best reception, make sure the coaxial cable is the correct length for your installation needs. Similar to getting your antenna up high, terminating your coaxial cable at the right length will provide better reception to your television. 
2. If you are using a splitter, diplexer, or your cable run must be longer than 100 ft., consider using a preamplifier to boost weak signals. 

Spotty reception:

1. Reflected signals are also called "multipath interference". For those living close to broadcast towers, signal loss can occur when strong signals bounce off nearby buildings and other surfaces in the area. Aim your antenna in different directions, even sometimes away from the towers, and scan for channels. If this doesn't improve your reception, your installation may require an attenuator.

1. Do not install your antenna near metallic objects or reflective surfaces, as this could also cause signal interference.
2. Since the switch in 2007 from analog to digital signals, receiving TV signal is "all or nothing". You won't see "fuzz" or "snow" on your TV screen if the signal is weak or there is no signal. When a digital signal is received, it will display crystal-clear on your TV. If the signal is interrupted, your TV screen will be blank.

Combining multiple antennas
When combining multiple antennas on the same mast, keep at least 4 to 6 feet of vertical separation between the two antennas to prevent interference. If you want to combine signals from a UHF antenna with a VHF antenna so there is only one down-lead going into your house, use our UHF/VHF signal combiner with a channel filter for each antenna, designed not to pick up out-of-phase signals through the other antenna. For the best results, use equal lengths of coaxial cable from the output of each antenna when connecting to the UHF/VHF combiner.
Optional grounding information
For outdoor TV antenna installations, grounding the coaxial cable will protect your equipment from voltage surges created by nearby lightning strikes but will not protect from a direct strike. Check your local electrical codes to make sure your installation is in compliance. We recommend calling a professional electrician to advise or install your antenna. We have an educational page with suggestions for grounding your antenna.
Safety precautions:
If you are installing an antenna on the roof, assemble the antenna on the ground. Installing an antenna on windy days can be especially dangerous and even slight winds create strong resistance when attempting to set up an antenna or mast. 
Antennas that are improperly installed or mounted on inadequate structures are very susceptible to wind and weather damage. This damage could become life-threatening. The owner and installer assume full responsibility for the installation and verification that it is structurally sound to support all loads (weight, wind, ice, etc.) and is properly sealed against the elements and leaks.

You can read full here : https://www.antennasdirect.com/outdoor-antenna-installation-tips.html

315/433Mhz RF Link Kit

315/433Mhz RF Link Kit - The 315/433MHz RF link kit is consisted of transmitter and receiver, popular used for remote control. It will be easy to use this kit to transmit data via RF With the suggestArduino VirtualWire library

MX-05V models
Operating voltage : DC5V Quiescent Current: 4MA
Receiving frequency: 433.92MHZ /315 Mhz
Receiving sensitivity: - 105dB
Size : 30 * 14 * 7mm external antenna: 32CM single core wire, wound into a spiral
Technical parameters emission head
Model: MX-FS-03V
Transmission Distance: 20 -200 meters (different voltage, different effects) Operating voltage: 3.5-12V Dimensions: 19*19mm
Ways of working: AM transfer rate: 4KB/S transmit power: 10mW
Transmission frequency: 433M
External antenna: 25cm ordinary multi-core or single wire
Pinout left right :( the DATA ; the VCC ; the GND )
Application Environment
Remote control switch, receiving module, motorcycle, automobile anti-theft products, home security products, electric doors, shutter doors, windows, remote control 
socket, remote control LED, remote audio, remote control electric doors, garage door remote control, remote control retractable doors, remote control gate volume, 
pan doors, remote control door opener, and other closed door control system, remote control curtains, alarm host, alarm, remote controlled motorcycles, electric remote control cars, remote control MP3 and so on.
Optional accessories
With the company supporting the use of remote control products.
Remark
VCC voltage to be consistent with the module voltage, and to do the power filter;
antenna reception module great influence, then the best 1/4 wavelength antenna, generally use 50 ohm single-core wire, length of the antenna 433M ca. is 17cm ;
antenna position also on reception module, install the antenna stretched as far as possible, away from the shield, high pressure, and local sources of interference ; 
reception frequency use, decoding and oscillation resistance 

Hardware & Program Setting

With Arduino, you can setting the hardware and program this board 

Antenna Bazooka 27 MHz

Antenna double bazooka 27mhz cable stretch rg58(5,24M) and to 11M radio, total 16.24M cable is suitable for 11 meter band radio
Very suitable for narrow or inadequate land, can be in the form of horizontal, vertical, inverted letter V and letter L
see the picture for the inverted V bazooka antenna installation

DIY miniature antenna booster

When using a good antenna amplifier for the UHF range, programs can be received from television stations which, without a preamplifier, only deliver a very noisy "snow field". The antenna amplifier described here is very simple. It can because of its small dimensions directly in the junction box of Antenna to be accommodated. The small coupling capacitance in the input protects the transistor from overvoltages that may occur during a thunderstorm. The built-in resonant circuit in the collector branch can be tuned to any frequency between 470 and 790 MHz.

Because of the extremely low retroactive effect  of this transistor is the amplifier stronger very stable, even with poor matching of the input and output. The bandwidth of the circuit is about 15 to 40 MHz.

reference : Elektor Electronics

DIY Microwave Antenna Horn Applications with Food or Coffee Can

Looking for a highly effective microwave horn antenna? Look no farther than your pantry! Food cans (empty, of course) can be just the right size to give you lots of gain-just watch out how much YOU gain by emptying the cans! 

You can turn a coffee can into a quick and simple horn antenna with 8.5 dBi gain for 1296 MHz. Its bandwidth is very broad and this horn can be used as is from 1100 MHz to 1500 MHz. It works great in SSB, CW, FM, ATV, satellite, and even SET1 (Search for Extra-Terrestrial , Intelligence) applications. Take an empty 3-pound coffee can and drill a hole for the coax connection along the solder seam 4 l/2 inches from the bot- tom (see Figure 1 for other dimensions). Now mount a Type "N," BNC, or SMA connector in your hole. Inside, solder the probe to the coax connector (the probe is the actual antenna element, generally cut to l/4-wavelength at your proposed operating frequency). You want the probe to be sort of thick; #16 copper wire, I/~-inch copper or brass tubing, and ll4-inch-wide strips of .032-inch sheet brass have all been used and have all worked well. 

One is good, so two is better, right? Yep, in this case. The probe is pretty close to the opening of the 3-pound coffee can, 

adding a second 3 pound coffee can will improve the gain from 8.5 to 10.5 dBi (see Figure 2). Just cut the bottom out of the can (I'll assume the top has already been removed and the contents have already been consumed), so you just have a steel tube. Attach the second can to the first and extend the horn. You don't have to com- pletely solder the gap between the cans. I've found 

that a couple of spot solder points work fine. I've also used that alu- minum wallboard tape with good results, and have even used duct tape once or twice. 

The super glues I tried didn't work well at all. Now, I know exactly what you're thinking (I tried it over 15 years ago). If one can is good, and two are better, 

let's go for three! Without going into wave- guide theory, I can tell you that it won't work. When I tried using three cans, overall gain dropped to only 7 dBi. 

I have taped these to poles and stuck them up in the air for "rover" contacts. I nailed one to a rafter in my roof, pointed it at a local 1200-MHz repeater and 

used it for several years. And a dozen years ago, WSDBY in Ft. Worth, Texas, worked a station near Miami, Florida, on 1296-MHz SSB. For many years, 

this 1,100-mile QSO was the U.S. 1296-MHz tropo record. And yes, WSDBY was using a 3-pound coffee can duct taped to his tribander for this record QSO.

What is Horn Antenna : Working & Its Applications

What is Horn Antenna : Working & Its Applications

 - A Horn antenna is a type of aperture antenna which is specially designed for microwave frequencies. The end of the antenna is widened or in the horn shape. Because of this structure, there is larger directivity so that the emitted signal can be easily transmitted to long distances. Horn antennas operate in microwave frequency, so the frequency range of these antennas is super high or ultra-high which ranges from 300 MHz – 30 GHz.The energy of the beam when slowly transform into radiation, the losses are reduced and the focussing of the beam improves. A Horn antenna may be considered as a flared out wave guide, by which the directivity is improved and the diffraction is reduced. One of the first horn antennas was constructed in 1897 by Bengali-Indian radio researcher Jagadish Chandra Bose in his pioneering experiments with microwaves. The modern horn antenna was invented independently in 1938 by Wilmer Barrow and G. C. Southworth. This Horn model antenna is suitable employed in the UHF or SHF radio bands. Making this horn model antenna it will be easy for a beginner to make if it works in the 10GHz frequency, because small dimensions so it is not so difficult and also offers gain up to 25dBi.

The horn model antenna is usually fed (fed point) using waveguide. The propagation waveguide uses TE10 mode and works in normal frequency range. This means that the electric field (E) passes through the guide which has short dimensions and passes through a wide magnetic field (H). The terminology of E-plane and H-plane is as shown in the image below. There are many types of horn antennas, if the waveguide extends towards the H-plane it is called a sectoral H-plane. Similarly, if the waveguide is in the direction of the E-plane it is called a sectoral E-plan. If the waveguide is both plans it is called a pyramidal Horn antenna.

Pyramidal Horn Antenna with dimensional Parameters : (a) Overall Geometry; (b) Cross-section through xz-plane (H-Plane_ ; (c) Cross-section through yz-plane (E-Plane)

An illustration of a funnel antenna as shown in the image below. Long the center of the funnel to the center of the front of the funnel is denoted as L, and The length of the hypotenuse of the funnel is denoted L'. The difference between L and L' is of . This causes a phase difference in the electromagnetic field which through the aperture. This phase difference is allowed in the E-plan and H-plane. For the E-plane funnel the field intensity is fairly constant throughout the aperture. 

For Horn H-plane terrain will be tapered. As a result the phase difference at the edge of the aperture the E-plane the horn  is more critical and the phase difference should be less than 90 degree (1/4 lambda). In the H-plane  the horn allowable phase difference is 144 degree (0.4 lambda). If the aperture in the pyramidal funnel i.e. E-plane and H-plane exceeds one wavelength then the pattern becomes independent and can be analyzed separately.

Horn Antenna Gain

Horns have very little loss, so the directivity of a horn is roughly equal to its gain. The gain G of a pyramidal horn antenna (the ratio of the radiated power intensity along its beam axis to the intensity of an isotropic antenna with the same input power) is:

For conical horns, the gain is :

Where

A is the area of the aperture,

d is the aperture diameter of a conical horn

λ is the wavelength,

eA is a dimensionless parameter between 0 and 1 called the aperture efficiency,

The aperture efficiency ranges from 0.4 to 0.8 in practical horn antennas. For optimum pyramidal horns, eA = 0.511., while for optimum conical horns eA = 0.522. So an approximate figure of 0.5 is often used. The aperture efficiency increases with the length of the horn, and for aperture-limited horns is approximately unity

Horn Antenna Frequency Range

The operational frequency range of a horn antenna is around 300MHz to 30GHz. This antenna works in UHF and SHF frequency ranges.

Horn Antenna Radiation Pattern 

Radion patterns of pyramidal horn antenna (a) H-plane and (b) E-plane

The radiation pattern of a horn antenna is a Spherical Wave front. The following figure shows the radiation pattern of horn antenna. The wave radiates from the

aperture, minimizing the diffraction of waves. The flaring keeps the beam focussed. The radiated beam has high directivity.

Horn Antenna Design Example 

10GHz pyramidal horn antenna with approx. 18dBi visible gain like the picture below  The first parameter in planning the antenna are the gain and maximum antenna  size. These two things of course are related to each other, and can be estimated as follows.

L = H-plane length (λ) = 0.0654 × gain (Eq 1)

A = H-plane aperture (λ) = 0.0443 × gain (Eq 2)

B = E-plane aperture (λ) = 0.81 A (Eq 3)

Where :

Gain is expressed as a ratio, 20 dBi gain = 100 L, A and B are dimensions shown in Figure above. From the above equation for the dimensions of the antenna which has a gain 20dBi is a funnel that works in the 10.368GHz frequency. one length the band of 10.368GHz  is 1.138 inches. Length (L) of the funnel is 0.0654 x 100 = 6.54 lambda. At 10.368GHz. Appropriate aperture for the H-plan (A) horn is 4.43 lamda or 5.04 inches,  and the E-plan aperture is (B) 4.08 inches.

The easiest way to make such a horn antenna is to prepare the side pieces and solder them together. With Thus, the antenna material is made of metal that is easy  to solder. 

It is not recommended to use aluminum material, because it is difficult to manufacture. The dimensions of the triangular pieces are shown in Figure above.

Notice that the pieces of the triangle are trimmed at the ends of the which is tapered to fit the aperture of the waveguide (0.9 x 0.4 inch). This make the length 

from the base to the apex of the small triangle ( side B) shorter compared to side (A). Also note that the length S of the two sides different funnels must be the 

same in order to be assembled together. Need care must be taken in assembling this funnel antenna. The dimensions of the sides can be calculated by simple geometric math. But it will be easier if you make a pattern first on cardboard. From pattern cut and made an artificial funnel antenna first to make sure everything fits and  can be assembled together before cutting sheets of antenna material such as brass or copper.

Cut 2 pieces of cardboard for side A and side B and glue them together , in the form of a funnel. After that prepare a new sheet and cut 5.04 x 4.08 inches and 

punch a hole in the center to a size of 0.9 x 0.4 inches for the waveguide. If these dimensions are correct, use this cardboard pattern to mark or draw a pattern 

on a sheet of antenna material that actually. Cut the sheet of brass/copper antenna material carefully, because cutting errors will be fatal and you will lose

antenna material because it must be wasted. The next step is to put the parts together side by soldering. Remember the soldering part is the outside connection. 

Because if the part in the connection will affect its RF radiation and can reduce the gain of the funnel antenna.

reference :

https://www.tutorialspoint.com/antenna_theory/antenna_theory_horn.htm#

https://sumberbelajar.seamolec.org/Media/Dokumen/596d76fe7f8b9a142fbae076/fb4e1a320bd228a27bbec7db6d9cb2c1.pdf

https://archive.org/details/antennasfromtheo0000huan/page/174/mode/2up?view=theater

https://en.wikipedia.org/wiki/Horn_antenna

Best Rf Demo Kit NanoVNA Attenuator Board Tester Module For Network Analysis

Main Use: 

RF Demo Kit NanoVNA RF test board demonstration calibration board, used for learning vector network analyzer, antenna analyzer test calibration learning
High Quality: Each module is carefully selected for high quality and high reliability
Lightweight and Portable: The board is small and lightweight, suitable for carrying around. Comes with 2 UFL patch cables for easy access
Multiple Functions: The board fully integrates 18 functional modules
High-quality Service: 100% quality and safety guarantee. 

Made of fine quality material, practical, easy to operate and use, wide application range, has a long service life.

Features:

Made of fine quality material, practical, has a long service life.
Compact and lightweight, easy to operate and use.
This is a vector network analyzer learner tool.
Can be used with NanoVNA-F to measure 6.5M ceramic notch filter.
Can be used with NanoVNA-F to measure homemade low-pass-filter, 3dB bandwidth about 400MHz.

Specifications:

Material: PCB
Color: green
RLC series and parallel circuit 1
RLC series and parallel circuit 2
33 ohm resistance, SWR=1.5
75 ohm resistance, SWR=1.5
BSF ceramic notch filter, center frequency 6.5MHz
BPF ceramic filter, centre frequency 10.7MHz
RC series circuit
LC series circuit
Capacitor
Inductance
Homemade low-pass filter, 3dB bandwidth 400MHz
Homemade high-pass filter, 3dB bandwidth 500MHz
Short-circuit calibration circuit
Open-circuit calibration circuit
50 ohm load calibration circuit
Straight-through
10dB attenuation circuit
3dB attenuation circuit
Each set of functional circuits
Item size: 100 * 100mm / 3.9 * 3.9in
Item weight: 38g / 1.3ounce
Package size: 159 * 152 * 52mm / 6.3 * 6.0 * 2.0in
Package weight: 65g / 2.3ounce

Package List:
1 * PCB RF Tester Board
2 * 200mm Adapter Cable

For sale varco iron 10 pf

 

For sale varco iron 10 pf - varco iron 10 pf. new items are considered second hand goods. old stock left.

For sale Varco iron 500 Pf, new item, old stock left

For sale Varco iron 500 Pf, new item, old stock left - 500pf iron varco. does not rotate 360 ​​degrees. look at the photo. new item..but considered like used item. old stock left.

YTE Antenna Analyzer 26-170 MHz

 

ANTENNA ANALYZER YTE 26-170 MHz. Especially for CB and VHF (2 Meters).Ham Radio Hobbyist must have this tool, because it was created to meet the needs of CB and VHF frequency users.Very accurate in measurement, featuring 2 analog panel meter and digital panel. Very easy to read SWR and Impedance. Made according to American ARRL standards.