How to check Digital Cable TV Signal Strength?

If you are a cable operator or Cable TV subscriber then you can check the digital cable TV signal strength by the given below method.

Check the source –

First, you should check the source of how much signal you are sending to a particular cable connection. Source means a Cable TV amplifier.

Step 1 –

Usually, Cable operators use Taps/splitters for distributing their cable TV connections. So first check the signal status after the tap or amplifier. Because there may be a problem with the tap if good signals are not received by the viewer’s set-top box. so unscrew the coaxial cable from the tap and check the signal status. The best signal strength should be received nearby a tap of about 90% to 100%. It should not exceed 100%.

Step – 2

Now go viewer’s home and unplug the cable from the set-top box and check the receiving signals from the cable amplifier. For example, if you have checked the signals nearby the amplifier at 95% and now you are receiving 75% signals nearby the set-top box then it is okay. Because 10dB to 30dB signals may be down for coaxial cable losses. We suggest you use a good quality coaxial cable. If you are receiving signals below 70%, it means you need to change the coaxial cable or the cable may be damaged anywhere.

dB Meter for Digital Cable TV –

You can use the SOLID SF-900 or SOLID SF-750 or SF-750PRO to check cable TV signal strength. You can also find other cable TV dB meters here.

How to use Cable TV Meter? –

Just plugged in the SF-750 or SF-750PRO meter to the cable connection and checked the received signals. You need to fill in the channel frequency in the meter manually. You can get channel frequency from your set-top box. Just press the info button from your set-top box remote to get frequency and channel no. Fill this information into your meter and check the signal strength and quality. You should also check BER and MER for the overall quality of signals.

How to check cable TV signal with multimeter?

Checking cable TV signals with a multimeter involves measuring the voltage and DC in the coaxial cable. However, you can take a voltage reading only, but the signal quality, frequency, and modulation, cannot be measured with a multimeter. For comprehensive signal analysis, use specialized equipment, such as a spectrum analyzer or a cable TV signal meter. A good cable connectivity typically has a voltage between 12V and 18V.

Choose the best cable TV signal booster amplifier –

Before purchasing, all the cable TV operators should ensure the amplifier is compatible with your digital cable TV frequencies. Gain: Higher gain amplifiers can boost weaker signals, but may also introduce more noise. Noise Figure: Look for amplifiers with a low noise figure (NF) to minimize signal degradation. Frequency Range: Ensure the amplifier covers the frequency range used by your cable TV provider. Number of Ports: Choose an amplifier with enough ports to connect all your devices. Power Supply: Consider an amplifier with a built-in power supply or one that can be powered over a coaxial cable. Durability: If installing outdoors, select an amplifier with a weather-resistant design and surge protection. If you have any questions related to cable tv signal measurement, you can post your questions in the comment section.