MikroTik LDF 5 5GHz 9dBi Lite Dish Feed Outdoor CPE Point-to-Point
The MikroTik LDF 5 (RBLDF-5nD) is a dual-chain 5GHz outdoor wireless system designed to be mounted at the focal point of a standard offset satellite dish antenna, transforming an inexpensive readily-available dish into a high-gain long-distance wireless link. The LDF (Lite Dish Feed) has its own built-in 9 dBi antenna, but when paired with a satellite dish of up to 100 cm in diameter, total antenna amplification of up to 33 dBi can be achieved — enabling powerful point-to-point links at ranges that a conventional CPE could not reach. Supporting 802.11a/n (Wi-Fi 4) and running MikroTik RouterOS, the LDF 5 is a uniquely cost-effective solution for WISPs, network integrators, and installers who need long-range 5GHz connectivity without the expense of a dedicated high-gain dish antenna unit.
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The MikroTik LDF 5 takes a creative approach to long-distance outdoor wireless: rather than integrating a large parabolic reflector directly into the product, the unit is designed to clip into the existing mount of a standard offset satellite TV dish, using the dish itself as a passive reflector to dramatically amplify the radio signal. This approach allows users to leverage widely available and affordable satellite dishes to create high-gain 5GHz point-to-point links at a fraction of the cost of a traditional dish-integrated wireless unit.
Concept & Antenna Performance
The LDF 5 has a built-in 9 dBi antenna, which operates as the feed element for the offset dish. When installed in a satellite dish of up to 100 cm in diameter, the combined system can deliver antenna amplification of up to 33 dBi — significantly extending achievable link distances. This makes the LDF 5 particularly attractive for long-distance point-to-point and point-to-multipoint backbone links where high gain is required but budget is a constraint.
Wireless Performance
The LDF 5 uses the AR9344 wireless chip to deliver dual-chain 5GHz 802.11a/n (Wi-Fi 4) connectivity with a maximum wireless data rate of 300 Mbit/s. Receive sensitivity ranges from -96 dBm at 6 Mbit/s to -75 dBm at MCS7, supporting reliable operation over long distances and in challenging signal environments. The international version (RBLDF-5nD) supports the 5150–5875 MHz frequency range, while the US version (LDF 5 US) is factory-locked to 5170–5250 MHz and 5725–5835 MHz.
Processing & Storage
The unit is powered by an AR9344 processor running at 600 MHz on the MIPSBE architecture, with 64 MB of RAM and 16 MB of FLASH storage. RouterOS comes pre-installed and licensed — no additional software purchase is needed. RouterOS provides a comprehensive networking feature set including routing, bridging, firewall, QoS, VPN, and wireless management, accessible via WinBox, WebFig, or CLI.
Ethernet & Powering
A single 10/100 Fast Ethernet port handles data and power input. The LDF 5 accepts passive PoE in the 10–30 V range, with a maximum power consumption of 6 W — making it efficient and suitable for remote installations. Passive cooling ensures silent, maintenance-free operation in outdoor environments.
Build & Installation
The LDF 5 is housed in a compact enclosure measuring 84 × 84 × 115 mm, rated IP54 for outdoor use and tested across an ambient temperature range of -40°C to 70°C. MTBF is approximately 100,000 hours at 25°C. The unit is designed to mount directly into the LNB holder of a standard offset satellite dish — no special adapter is required for typical installations. The package includes a 24V 0.38A power adapter and a PoE injector.
Use Cases
The LDF 5 is ideal for long-distance 5GHz point-to-point links where an existing satellite dish can be repurposed, budget-conscious WISP backbone deployments, remote CPE installations requiring high-gain directional connectivity, and any scenario where achieving maximum link distance at minimum cost is the priority.
Key Specifications at a Glance
- Product Code: RBLDF-5nD
- Wireless Standard: 802.11a/n (Wi-Fi 4), 5GHz dual-chain
- Max Wireless Data Rate: 300 Mbit/s
- Built-in Antenna Gain: 9 dBi
- Max System Gain (with dish): Up to 33 dBi (with dish up to 100 cm diameter)
- Frequency Range: 5150–5875 MHz (International); 5170–5250 MHz & 5725–5835 MHz (US)
- Ethernet Ports: 1x 10/100 Fast Ethernet (PoE-In)
- PoE Input: Passive PoE, 10–30 V
- CPU: AR9344, 600 MHz, MIPSBE architecture
- RAM: 64 MB
- Storage: 16 MB FLASH
- Operating System: RouterOS (pre-installed and licensed)
- Max Power Consumption: 6 W
- Weather Rating: IP54
- Operating Temperature: -40°C to 70°C
- Dimensions: 84 × 84 × 115 mm
- Cooling: Passive
- MTBF: ~100,000 hours at 25°C
- Certifications: CE, FCC, IC, EAC, RoHS
- Included: 24V 0.38A power adapter, PoE injector
- Product code
- RBLDF-5nD-US
- Architecture
- MIPSBE
- CPU core count
- 1
- CPU nominal frequency
- 600 MHz
- Operating System
- RouterOS
- Size of RAM
- 64 MB
- Storage size
- 16 MB
- Storage type
- FLASH
- Tested ambient temperature
- -40°C .. +70°C
- Number of DC inputs
- 1 (PoE-IN)
- Max Power consumption
- 6
- Max power consumption without attachments
- 6W
- PoE in
- Passive PoE
- PoE in input Voltage
- 10-30 V
- 10/100 Ethernet ports
- 1
- Dimensions
- 84x84x115mm
- Wireless 5 GHz number of chains
- 2
- Wireless 5 GHz standards
- 802.11a/n
- Antenna gain dBi for 5 GHz
- 9
- Wireless 5 GHz chip model
- AR9344
General information
All students who attend the Training can receive a free L4 license from MikroTik. Training should be at least three days long.
Students are allowed to take the certification test ONLY upon the attendance of individual training course, in the class, under the supervision of a MikroTik Certified Training Partner.
Each certification test consists of a pre-defined % of random questions (multiple choice and true/false) from specific question categories. Items also have a difficulty parameter. MTCNA test is generated from more straightforward questions, Advanced tests – from more difficult questions.
Only one attempt is allowed. The test must be finished within one hour. The passing grade is set to 60%. There are 25 questions in the exam.
Certificate numbers and RouterOS L4 licenses are assigned automatically by MikroTik. Students can see their certificates and generate license keys once logged into the account server. Printed documents from MikroTik cost USD 30 per piece. Shipping is not included.
Remote training sessions and certification exams are not allowed.
MikroTik Certification Test without prior attendance of particular MikroTik Training Session is not allowed.
Wireless Netware offers every participant a free RouterBOARD hAP-ac-lite.
The price includes class attendance, course materials, coffee breaks and lunch, "Only for local Training." The amount does not cover travel and accommodation expenses.
Please bring (very important): Laptop, power extension strip (10ft./3m) with five sockets, one long Ethernet cable (16ft./5m+) and several short Ethernet cables.
Cost: Early bird price for the course is $850. It is valid 15 days before the scheduled session, referring to the MikroTik Training website. The price will be $1050 after the early bird date. The price includes class attendance, course materials, coffee breaks and lunch," Only for local Training." The amount does not cover travel and accommodation expenses. Seating is limited to only four students. The seat is reserved and guaranteed just after the payment is received in full amount.
Certificates will only be valid for three years.
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