Picking the wrong satellite dish or antenna means dropped signals, wasted money, and a frustrating installation experience. Whether you're setting up TV reception at home, deploying a business internet link, or building out a remote site, the right equipment makes a measurable difference. This satellite dish antenna buying guide cuts through the noise and tells you exactly what to look for.
Know What You Actually Need
Satellite dishes and antennas serve different purposes, and conflating them leads to bad purchases.
- TV reception dishes (like those used for DirecTV or Dish Network) are single-feed, relatively small (18–36 inches), and point at a fixed geostationary satellite.
- Internet satellite dishes (Starlink, HughesNet, Viasat) are purpose-built for two-way broadband and typically come as part of a subscription kit.
- VSAT dishes are commercial-grade units (1.2m–2.4m) used for business internet, remote operations, or maritime connectivity.
- Off-air TV antennas receive free broadcast channels over UHF/VHF frequencies and are entirely separate from satellite equipment.
- Point-to-point microwave antennas link two fixed locations and belong in a different category entirely.
Get clear on which type you need before you look at a single spec sheet.
Key Specs to Evaluate
Dish Size and Gain
Larger dishes capture more signal. For home TV, an 18-inch single-LNB dish works fine in most climates. If you're in a high-rainfall area or pointing at a weaker satellite transponder, step up to a 24-inch or 30-inch dish. For business VSAT setups, 1.2m is a common minimum, with 1.8m and 2.4m dishes used for higher throughput or less forgiving satellite arcs.
Antenna gain is measured in dBi. Higher gain means a narrower, more focused beam — useful for fixed satellite links, but not for applications requiring wide coverage.
LNB Type and Count
The Low-Noise Block downconverter (LNB) sits at the focal point of the dish and converts the satellite signal to a frequency your receiver can use. Key considerations:
- Single LNB: one receiver, one satellite position
- Twin or quad LNB: multiple receivers from one dish — practical for households with multiple TVs
- Ku-band vs. Ka-band: most consumer satellite TV uses Ku-band (10.7–12.75 GHz); newer high-throughput satellites often operate on Ka-band (26.5–40 GHz)
Using a Ku-band LNB on a Ka-band system simply won't work, so confirm compatibility before ordering.
Mounting and Weather Resistance
A dish rated IP65 or higher handles outdoor exposure reliably. Check the wind load rating — a 90cm dish in a coastal or rooftop location can act like a sail. Most residential mounts are pole-mounted (1.5–2 inch OD steel pipe is standard), while commercial installs may require roof penetrations, wall brackets, or ground-mounted concrete footings.
New vs. Used Equipment
Buying used satellite equipment can save 40–60% on hardware costs, but carry real risks:
- Older LNBs may have drifted out of spec — measurable with a signal meter but invisible to the eye
- Discontinued models may lack firmware support for newer satellite platforms
- Mounting hardware corrodes; inspect welds and fasteners carefully
For business-critical links, new equipment with a manufacturer warranty is almost always worth the premium. For a second TV point in a spare room, a used dish in good physical condition is a reasonable call.
Installation Considerations
DIY installation is feasible for standard home TV dishes if you're comfortable working at height and have a satellite finder meter (budget $30–$80 for a basic model). The process involves:
- Identifying the correct azimuth, elevation, and skew angles for your satellite and location
- Mounting the dish on a plumb, solid structure
- Running RG-6 coaxial cable with proper weatherproofing at the entry point
- Fine-tuning alignment using signal strength readings on the receiver
For commercial VSAT or high-gain installations, professional alignment is typically required — even small angular errors cause significant signal loss at higher frequencies.
Comparing Providers and Suppliers
Prices vary significantly between installers, and service quality varies even more. Equipment-only purchases, full turnkey installations, and managed service contracts are all different offers that shouldn't be compared on sticker price alone. Mercoly lets you compare and find trusted satellite dish and antenna providers in one place, so you're not jumping between five different websites trying to cross-reference reviews and quotes.
What to Budget
- Home TV dish (hardware only): $40–$150
- Home TV dish with professional installation: $150–$400
- Starlink kit (residential): ~$599 hardware + monthly service
- Business VSAT system (hardware + installation): $1,500–$8,000+ depending on dish size and service tier
- Off-air TV antenna (outdoor, installed): $80–$250
These ranges shift based on location, roof access difficulty, cable run length, and whether you need a new receiver.
Use this guide to narrow your options before you buy, and get quotes from verified local installers to lock in the right setup at a fair price.