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OEM vs Compatible Projector Lamp
Original, original inside or compatible? How projector lamp types differ in bulb, housing, brightness and life, what US warranty law says about aftermarket lamps,…
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Crank Up Antenna Tower: How It Works
How crank up and tilt over towers raise and lower, why a raised crank up is never climbed, when to lower it for wind,…
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Channel Width for a Point to Point Link
Wider channels carry more data but raise the noise floor about 3 dB per doubling. See how 20, 40 and 80 MHz change sensitivity,…
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Soundbar Subwoofer Placement
Where to put a soundbar’s subwoofer: corner or front wall, why room modes change the bass, how to do a sub crawl, which settings…
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Subwoofer Cable vs RCA Cable
Is a subwoofer cable different from an RCA cable? What the label changes, when an ordinary lead works, how to handle long and in-wall…
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Rotor Thrust Bearing: When You Need One
A rotor thrust bearing carries the mast and antenna weight so the rotor only turns it. Learn when one is needed, how it mounts…
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How to Set Limits on Motorized Shades
Set upper and lower limits on motorized shades with the common program, jog and confirm pattern, find out why shades lose their limits, and…
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Smart Switch vs Smart Bulb
Smart switch or smart bulb? Learn when each one wins, how to stop a wall switch cutting power to smart bulbs, why they never…
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2 Post vs 4 Post Rack
Choosing between a 2 post and 4 post rack: how each carries equipment, depth and rails, centre mounting, floor anchoring and seismic bracing, cable…
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Can a Satellite Dish Work as a TV Antenna?
A satellite dish cannot receive local TV, but the mount, RG6 coax and grounding block often can be reused. Learn what to keep, what…
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How to Mount a TV Antenna on a Metal Roof
Mounting a TV antenna on a metal roof: when to use a wall or eave mount, how standing seam clamps work, sealing screwed-down panels,…
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Tower Climbing Safety Equipment
An overview of tower climbing safety equipment and the OSHA rules behind it: harness, twin-leg lanyard for 100 percent tie-off, positioning lanyard, cable grabs,…
Bursma Distributing
Blog
Guides and product notes for dealers, installers and integrators.