Meraki Point to Point Antenna Setup: Extending Network Coverage Wirelessly

Buildings separated by parking lots, campuses spanning multiple structures, warehouses with separate wings—these environments face networking challenges traditional wired infrastructure struggles to address economically. Running fiber optic cables between buildings costs thousands of dollars, requires construction permits, and disrupts operations. Wireless point-to-point links provide alternative connectivity without the installation complexity and cost.

Cisco Meraki point-to-point antenna systems extend network connectivity wirelessly across distances up to several miles, creating backbone links between buildings while maintaining the high capacity and reliability of physical cables. Understanding point-to-point architecture, deployment considerations, and configuration helps organizations implement wireless building-to-building connectivity effectively.

Understanding Point-to-Point Wireless

What is Point-to-Point?

Point-to-point (PtP) wireless creates a direct connection between two specific locations:

• Building A access point transmits to Building B access point
• Data flows between buildings through wireless link
• Similar to running Ethernet cable but wirelessly
• Dedicated link with high capacity and reliability

Unlike broadcast WiFi reaching all nearby devices, point-to-point is laser-focused—transmitting only to the intended receiving antenna.

Point-to-Point vs. Mesh

Don’t confuse point-to-point with mesh networking:

Aspect	Point-to-Point	Mesh
Devices	Two (source, destination)	Multiple relaying traffic
Capacity	High (dedicated link)	Lower (shared bandwidth)
Range	Up to several miles	Moderate (100-300 feet typical)
Latency	Low	Higher (multiple hops)
Use Case	Building-to-building	Coverage across area

Point-to-point ideal for high-capacity backbone links. Mesh ideal for coverage in open areas.

How Meraki Point-to-Point Works

Directional Antennas

Rather than broadcast WiFi antennas (omnidirectional, radiating in all directions), point-to-point uses directional antennas:

• Transmitting antenna focuses signal toward receiving antenna
• Receiving antenna focused to collect signal from transmitter
• Narrow beam (like flashlight vs. lightbulb)
• Dramatically extends range through concentrated power

Line of Sight Requirement

Point-to-point requires line of sight between antennas:

• Direct path with no obstructions between buildings
• Trees, walls, hills blocking path reduce or block signal
• Elevation helps (mounting antennas high on buildings)
• Distance measured line-of-sight, not walking distance

Point-to-Point Antenna Types

Sector Antennas

Cover larger area (90-120 degree arc):

• Deploy at base station serving multiple remote points
• Central hub transmits to multiple satellite locations
• One transmitter, multiple receivers

Dish Antennas

Narrow, focused beams:

• Long-distance point-to-point links
• High directionality reducing interference
• Good for bridges between distant buildings
• Setup requires precise alignment

Yagi Antennas

Linear antenna array:

• Moderate distance coverage
• Moderate cost
• Directional but not extreme
• Good balance of distance and cost

Site Planning and Assessment

Evaluating Feasibility

Before deploying point-to-point, assess:

Distance

• Measure line-of-sight distance between buildings
• Account for radio propagation (not direct line distance)
• Typical range 300 feet to 2+ miles depending on equipment

Obstruction Assessment

• Survey path between buildings
• Identify trees, walls, terrain blocking signal
• Determine how high antennas must mount to clear obstructions
• Calculate Fresnel zone (buffer around direct path needed)

Mounting Options

• Building roofs (typical location)
• Tall masts or poles
• Wall mounts if clear shot available
• Roof mounting most common

Interference Check

• Identify other 2.4GHz or 5GHz sources
• WiFi networks, microwave ovens, other radios
• Channel selection must avoid interference
• Frequency analysis helps optimize placement

Weather Considerations

• Rain fade (signal degradation in heavy rain)
• Snow accumulation blocking signal
• Wind load on antenna mounting
• Temperature extremes affecting equipment

Site Survey Tools

Professional site surveys use:

• GPS devices – Measure exact coordinates
• Rangefinders – Measure distances
• Spectrum analyzers – Detect interference
• RF meter – Measure signal strength
• Professional assessment – Meraki partners provide surveys

Planning Point-to-Point Link

Link Budget Calculation

Engineers use link budgets predicting whether connection works:

• Transmit power (dBm)
• Antenna gain (dB)
• Cable losses (dB)
• Path loss (depends on distance, frequency)
• Receiver sensitivity (dBm)
• Margin (buffer for rain fade, aging)

Professional tools calculate whether distance/equipment combination provides sufficient signal.

Frequency Selection

Meraki point-to-point typically operates on:

• 2.4GHz band – Longer range, more interference
• 5GHz band – Shorter range, less interference
• Unlicensed spectrum – No FCC license required
• Licensed bands – Available in some regions

Frequency choice balances distance capability vs. interference environment.

Hardware Selection

Meraki MR Series Outdoor Access Points

Meraki offers outdoor-rated access points with directional antenna options:

MR84

• Outdoor-rated (IP67 waterproof)
• High power output
• Directional antenna options
• PoE powered

MR76

• Extreme environment rated
• High power transmit
• Multiple antenna configurations
• Industrial grade

MR52

• Lower cost option
• Basic outdoor capabilities
• Good for shorter distances
• PoE powered

Antenna Selection

Beyond access points, appropriate antennas crucial:

Gain: Higher gain concentrates signal (18-24 dBi typical for point-to-point) Type: Dish, sector, or Yagi matching coverage requirements Mounting: Hardware for secure roof/pole mounting Protection: Radome (cover) protecting antenna from weather

Installation Process

Pre-Installation

1. Procure equipment
   • Access points with directional antennas
   • Mounting hardware
   • PoE injectors/cabling
   • Alignment tools
2. Safety planning
   • Identify hazards (heights, traffic, etc.)
   • Plan weather window for installation
   • Arrange access to roof/mounting points
3. Configuration
   • Pre-configure access points in lab
   • Set SSIDs, authentication
   • Configure channels, power levels

Installation Steps

1. Mount antennas
   • Physically install antenna mounts on both buildings
   • Mount access points securely
   • Ensure stable, weather-resistant installation
2. Align antennas
   • Rough alignment toward other building
   • Fine alignment for maximum signal
   • Use signal strength meters to verify
   • Fine-tune for optimal performance
3. Cable and power
   • Run Ethernet cable from building to access point
   • Connect PoE injector
   • Test power and connectivity
4. Network configuration
   • Connect through dashboard
   • Set wireless settings (SSID, security)
   • Configure bridge mode if creating network backbone
5. Testing
   • Measure signal strength both directions
   • Test throughput between buildings
   • Monitor for interference
   • Verify performance stable over time

Bridge Mode Configuration

Creating Network Backbone

Point-to-point often configured as network backbone:

1. Building A access point
   • Connects to wired network switch
   • Transmits to Building B
   • Carries all traffic between buildings
2. Building B access point
   • Receives from Building A
   • Connects to Building B network infrastructure
   • Carries traffic arriving from Building A
3. Wireless bridging
   • Both access points in bridge mode
   • Transparent to users (no special connectivity)
   • Users in Building B access Building A resources as if wired

Performance Optimization

Channel Selection

Optimize by selecting channels minimizing interference:

• 2.4GHz: Only 3 non-overlapping channels (1, 6, 11)
• 5GHz: Many more channels available
• Interference monitoring: Check for competing networks
• Dynamic adjustment: Change channels if interference detected

Power Level Configuration

Balance coverage and interference:

• Higher power: Extends range but increases interference
• Lower power: Reduces range but less interference
• Fine-tuning: Adjust to find optimal setting

Data Rate Optimization

Different data rates have different ranges:

• Higher rates (54 Mbps): Shorter range, higher throughput
• Lower rates (6 Mbps): Longer range, lower throughput
• Automatic rate selection: Adapts to conditions

Monitoring and Maintenance

Continuous Monitoring

After installation, monitor link health:

• Signal strength – Monitor continuously
• Data rates – Track throughput
• Error rates – Monitor for packet loss
• Weather impact – Expected signal degradation in rain
• Alignment drift – Vibration/weather can shift antenna position

Regular Maintenance

• Visual inspection – Check mounting, alignment
• Cleaning – Remove dirt/debris affecting signal
• Re-alignment – Seasonal adjustment as needed
• Software updates – Keep firmware current

Troubleshooting

Signal Loss

• Check alignment
• Verify antenna connections
• Measure actual vs. expected signal
• Consider environmental factors (rain, interference)

Connection Drops

• Verify both antennas operational
• Check for interference spikes
• Review logs for pattern
• Consider secondary link for redundancy

Poor Throughput

• Measure actual data rates
• Check for high error rates
• Verify appropriate channel selection
• Adjust power/rate settings

Advanced Configurations

Redundant Links

For critical building-to-building connectivity:

• Deploy two separate point-to-point links
• Different frequencies/channels if possible
• Automatic failover if primary fails
• Maintains uptime during maintenance

Multiple Dishes

Some deployments use multiple point-to-point links:

• Building A to B
• Building A to C
• Building B to C
• Creates mesh interconnecting campus

Hybrid Approach

Combine wired and wireless:

• Primary link: Fiber optic cable (if cost permits)
• Secondary link: Point-to-point wireless backup
• Best of both: High capacity cable + failover wireless

Regulatory and Safety Considerations

FCC Compliance

In North America:

• Equipment must be FCC certified
• Operation in unlicensed spectrum allowed
• Certain frequency bands have power limits
• Professional installation ensures compliance

Safety

• Roof work hazards require proper safety procedures
• High-voltage power considerations (PoE is low-voltage)
• Wind load engineering for antenna mounts
• Professional installer recommended for safety

Cost-Benefit Analysis

Costs

• Equipment: $2,000-10,000+ per link (antennas, access points)
• Installation: $1,000-3,000+ (professional installer)
• Maintenance: Minimal ongoing
• Lifecycle: 5-7 years typical

Benefits

• Avoids fiber optic installation: $15,000-50,000+ saved
• Quick deployment: Weeks vs. months for trenching/permits
• Flexibility: Relocation if building use changes
• Capacity: Gigabit speeds possible with modern equipment

Point-to-point wireless often more cost-effective than wired solutions, especially for longer distances.

When to Deploy Point-to-Point

Good Use Cases

• Multi-building campuses
• Parking lot separating buildings
• Buildings with construction barriers
• Temporary connectivity needs
• Backup links for critical paths

Not Ideal

• Extremely short distances (run Ethernet)
• Blocked line of sight (no clear path)
• Multi-building coverage (use WiFi mesh)
• Extreme weather areas (rain fade problematic)

Professional Assistance

For organizations planning point-to-point wireless deployments, Stratus Information Systems provides assessment through installation. We:

• Conduct site surveys assessing feasibility
• Design optimal link configuration
• Procure appropriate equipment
• Install and align professionally
• Optimize and monitor performance

Point-to-point wireless provides cost-effective building-to-building connectivity when line of sight exists. Proper planning, installation, and monitoring ensure reliable performance for years.