Coaxial Cable Grounding Block

SKU: CM-3274HD


Channel Master’s Coaxial Cable Grounding Block is designed for superior performance in Over-the-Air Antenna, Satellite and Cable TV installations where grounding coaxial cable is required.

It’s arguable for most who discuss if grounding your Coaxial cable will ultimately improve your OTA, Antenna, Satellite or Cable systems signal reception. Ask any professional installer and you might get mixed reviews however the National Electrical Code (NEC) requires that the antenna mast and the coaxial cable be bonded to the home's ground electrode system (GES), which is usually the ground rod installed at the power meter and breaker box. (A separate ground rod is not required, and is not recommended).

Using Channel Master’s Single ground block (CM-3274HD) allows you to properly ground your coaxial cable which will help to provide the strongest signal throughout your signal path.

What’s Included

Coaxial Cable Grounding Block
(2) Mounting Screws
1-Year Limited Warranty


Gold plated beryllium copper seizure has ideal electrical and mechanical characteristics, with exceptional spring back and center conductor retention that does not require assistance from a plastic insulator
100% conformance to SCTE standards for center conductor retention without any assistance from plastic insulators that relax over time
High quality zinc alloy body
Nickel plating for excellent corrosion resistance
Precision machined SCTE conforming ports for superior F-connector performance

Tech Specs

Bandwidth 5 to 3,000 MHz
Impedance 75 Ohms
Return Loss 30 dB @ 5 to 1,000 MHz, ≤ 0.3 @ 600 to 3,000 MHz
Ground Wire Gauge Accepts up to #6 AWG ground wire
Operating Temperature -40° to +140° F
Size 1.875 x 1.25 x 1.0 in