SIRIO SCO-868-4 & SCO-868-6 Base Station Antennas
Installation Manual for ISM 868 band antennas
Product Overview
This document provides installation instructions and technical specifications for the SIRIO SCO-868-4 and SCO-868-6 base station antennas, designed for the 868 MHz ISM band.
Performance Data
Typical S.W.R. Response
The S.W.R. (Standing Wave Ratio) response graphs illustrate the antenna's performance across frequencies. For both the SCO-868-4 and SCO-868-6 models, the X-axis represents frequency in MHz (ranging from 829 to 909 MHz), and the Y-axis represents SWR (ranging from 1.0 to 3.0). A key band, labeled "868-890 MHz band", is highlighted, showing that the SWR remains below 1.5 within this range, indicating efficient power transfer.
Typical Radiation Pattern at 868 MHz
The radiation pattern diagrams, shown on a logarithmic scale, depict the antenna's directional characteristics at 868 MHz. The pattern is largely omnidirectional in the horizontal plane (indicated by 360° coverage in specifications) and shows a specific vertical distribution of signal strength, with lobes and nulls.
Typical Gain Diagram vs Frequency
These graphs illustrate the antenna's gain in dBi (decibels relative to an isotropic radiator) across a range of frequencies. The X-axis displays frequency in MHz (from 829 to 909 MHz), and the Y-axis shows the gain in dBi. The SCO-868-4 model exhibits a peak gain of approximately 4.3 dBi, while the SCO-868-6 model achieves a higher peak gain of around 6.0 to 6.5 dBi.
Antenna Visuals
Visual representations of the SIRIO SCO-868-4 and SCO-868-6 antennas are provided. The SCO-868-4 is shown with an N-male connector, suitable for direct router installation. The SCO-868-6 is depicted with its base. Close-up views of various connector types, including N-type and SMA, are also visible, illustrating the different connection options available.
Manufactured by SIRIO antenne, a producer of high-quality antennas based in Italy. Technical data is subject to change. Document revision: 30/11/2021. Code: ID481.
Specifications
| Electrical Data / Mechanical Data | SCO-868-4 N-m conn. | SCO-868-4 N-f conn. | SCO-868-4 cable version (2 x 1/2 λ Collinear) | SCO-868-6 N-f conn. | SCO-868-6 cable version (3 x 1/2 λ Collinear) |
|---|---|---|---|---|---|
| Type | Base Station Antennas ISM 868 band | ||||
| Frequency Range @ SWR ≤ 1.5 | 868 - 870 MHz (ISM 868 system) | ||||
| Impedance | 50 Ω | ||||
| Radiation (H-plane) | 360° omnidirectional | ||||
| Radiation (E-plane) | Beamwidth @ -3 dB: 32° (SCO-868-4) / 22° (SCO-868-6) | ||||
| Radiation angle deg. | 0° | ||||
| Polarization | Linear Vertical | ||||
| Gain | 2.2 dBd, 4.3 dBi | 4.1 dBd, 6.2 dBi | |||
| Max Power (CW) @ 30° C | 20 Watts | ||||
| Cable Type | / | / | White Low Loss | / | White Low Loss |
| Cable Length | / | / | 5m, 16.4 ft | / | 5m, 16.4 ft |
| Connector | N-male | N-female gold plated pin | SMA-m other on request | N-female gold plated pin | SMA-m other on request |
| Housing & Radome Material | Fiberglass, PCB, Chromed Brass | ||||
| Bracket & Hardware Material | Galvanized steel | ||||
| Wind Load @150Km/h,93mi/h | 35 N | 41 N | |||
| Wind Resistance | 140 Km/h, 87 mi/h | 120 Km/h, 75 mi/h | |||
| Wind Surface | 0.0243 m²; 0.25 ft² | 0.03 m²; 0.32 ft² | |||
| Height (approx.) | 500 mm, 1.65 ft | 770 mm, 2.5 ft | |||
| Weight (without bracket, approx.) | 280 gr, 0.6 lb | 280 gr, 0.6 lb | 440 gr, 1 lb | 330 gr, 0.7 lb | 490 gr, 1.1 lb |
| Operating Temperature | -40 °C to +80 °C | ||||
| Ingress Protection | IP 64 | ||||
| Installation type | Direct router installation | M-3 bracket: Mast: Ø 35-42 mm, Ø 1.4-1.65 inch with U-bolt; Wall: with screws (not included) | |||
Mounting Instructions
Detailed instructions are provided for mounting the antennas. Two primary installation types are covered:
SCO 868-4 N-m: Direct Router Installation
This section shows a visual guide for connecting the SCO-868-4 antenna with an N-male connector directly to a router or similar device. The diagram illustrates the antenna and its connector.
M-3 Mast & Wall Installation (SCO-868-4/SCO-868-6 w/cable)
Instructions for mounting the antennas using the M-3 bracket are detailed. This includes mast installation, where the bracket attaches to poles with a diameter of 35-42 mm (approximately 1.4-1.65 inches) using a U-bolt. Wall mounting is also shown, requiring user-supplied screws. Diagrams illustrate the process, emphasizing the need to secure the bracket properly. The "REMARK! LOCK WELL" callouts indicate points requiring secure fastening.
M-3 Bracket Part List
The M-3 bracket assembly includes the following components:
- 2 x M6 U-bolt
- 4 x M6 Exagonal nut
- 4 x M6 Flat washer
- 4 x M6 Spring lock washer
- 1 x Steel Bracket "M-3"
Materials: Galvanized steel. Dimensions: 195 x 60 x 70 mm. Weight: 420 g. Re-order part number: P/N 2503604.00.
Optional Protection Nut
An optional SA299 Protection Nut is also mentioned, likely for securing the cable or connector.
