20 dB Tap Directional Coupler 50 Ohm N-Female Connectors 698-2700 MHz
20 dB Tap Directional Coupler 50 Ohm N-Female Connectors 698-2700 MHz
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Description
Product Description
20dB Radio Frequency (RF) Tap or Directional Coupler has 50 Ohm impedance. It covers 698 MHz - 2700 MHz frequencies. It has N-Female Connectors on both ends.
Where, and when is it typically used?
It is used in cell phone signal booster, repeater, amplifier systems that have more than one interior antenna. It is typically used when splitting of uneven amounts of signal is required towards interior antennas in different directions.
How does it work?
This 20 dB directional coupler or a tap has one input and two output outlets. The leg labeled "Tap or -20dB" incurs -20 dB loss whereas the leg labelled "Out or Output" incurs very small (up to -1db) loss.
Why is it used instead of a std. cable splitter?
This 20dB tap can be used instead of std. 2-way cable splitter because it helps offset cable signal loss when that output cable connected to port with "Out" label needs most signal because the length of cable is very long and consequently will incur heavy signal loss.
How is it used instead of cable splitter?
The leg where the label reads, "-20dB or Tap" is used for cable that does not require most signal because it is very short and it terminates close-by. Therefore, the signal loss may not be an issue with it. This 20 dB Coupler is preferred in such circumstances versus a standard 2-way cable splitter which splits signal strength equally between its two output cable connector ports.
Splitter vs. Coupler.
Splitters incur the same amount of insertion loss on all output cable ports. Whereas cable tappers such as this are very helpful in directing more signal towards longer runs of coaxial cables that have, or require multiple antennas in series. They help direct less signal power up to 20 Decibels (dB) towards cable that does not require as much because the coax cable run is very short with only one, or fewer antennas in series.
Which systems is it compatible with?
This wide-band coupler is compatible with all 2G, 3G, 4G and LTE cellular amplifier system deployments in the 698 MHz to 2700 MHz range under all North American carriers.
- Wideband: 2G, 3G, 4G, LTE (698 - 2700 MHz) -20 dB coupler.
- Impedance: 50 Ohm.
- Coupling Port Loss: 20 ± 1.5 dB.
- Connectors: N-Female.
- Connects with 400 coax cables such as SC400, Wilson400, LMR400, etc. (sold separately).
-20dB Coupler or Tap Specifications:
| Operating Frequency: | 698 MHz to 2700 MHz. |
|---|---|
| Coupling Degree (dB): | -20 dB. |
| Coupling Accuracy (±): | ≤ 1.5 dB. |
| Insertion Loss (dB): | ≤ 0.3. |
| Isolation: | ≥ 39. |
| SWR: | ≤ 1.3 : 1. |
| Impedance: | 50 Ohm. |
| Power Capability: | 200 W. |
| Connector: | N-Female. |
| IP Grade: | IP-64. |
| Dimensions: | 4.73 in. x 1.58 in. x 0.67 in. (without connectors). |
| Weight: | 7.4 oz. |
| Color: | Chrome. |
| Operating Temp.: | -31 Degrees Fahrenheit to +140 Degrees Fahrenheit. |
| Part Number: | C20-727-NF. |
| UPC: | 697691002484. |
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Warning
Note: For any signal booster to help, outside signal strength must be at least -110 dB or there must be a clear line of sight to a cell tower that is within twenty miles. Before ordering, please check outside signal level in decibels or ensure that you can make and hold a phone call at any good spot outside where you can mount an exterior antenna. Square footage stated in signal booster listings is based on good signal outside. If it is any weaker, the boosted sq. ft. area will be considerably lower, accordingly.
Kevin K. of Anderson, California gave the following review:
Website is easy to use with plain straight forward info but could have had more on testing signal strength to make sure you get a strong enough booster.
Therefore, please note that stated sq. ft. coverage is based on good signal outside. For best results: If outside signal is weak, we suggest choosing the next higher sq. ft. coverage kit. If outside signal is very weak, we suggest choosing the kit with even more higher sq. ft. range bracket. Basically, higher the sq. ft. bracket, the more powerful the signal amplifier with greater Gain as well as higher uplink and downlink output power.
If outside signal is too weak (weaker than -110 dB), submit request for cell coverage solution assessment. Upon receipt of questionnaire, we will perform residential or business site survey. This will help us determine the system that is needed to improve cell coverage. Then, we will create system design using that system such as femtocell, active or hybrid distributed antenna system (DAS), or other carrier feed signal enhancing method available that will work at your signal-challenged location. Finally, we will schedule for installation after equipment and installation service quote has been approved by you, or your company.
For non installation-included kits: Most home / office / building cell signal booster kits only include bracket to mount exterior antenna on outside wall, edge of roof, or existing pipe up to 2 inches in diameter. Mounting pole not included with most kits, unless stated specifically that it is included for free. Therefore, a mounting post must be purchased separately if you will require it to mount exterior antenna.
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