Sirio
Sirio Antenne S.r.l. was founded more than 50 years ago by Giuseppe Grazioli. He started his business in 1972 to be precise. The founder already knew then that the future lay in wireless communications, which were once used exclusively for military purposes. He therefore dedicated his life to the wider application of this innovative technology. Read more...
• Type: 3/4λ coaxial J-pole
• Frequency range @ SWR ≤1.5: 440-455 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Radiation (E-plane): beamwidth @ -3 dB = 60°
• Polarization: linear vertical
• Gain: 2 dBd, 4.15 dBi
• Max. Power (CW) @ 30°C: 250 Watts
• Grounding protection: All metal parts are DC-grounded, the inner conductor shows a DC short
• Connector: N-female
• Type: 3/4λ coaxial J-pole
• Frequency range @ SWR ≤1.5: 455-470 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Radiation (E-plane): beamwidth @ -3 dB = 60°
• Polarization: linear vertical
• Gain: 2 dBd, 4.15 dBi
• Max. Power (CW) @ 30°C: 250 Watts
• Grounding protection: All metal parts are DC-grounded, the inner conductor shows a DC short
• Connector: N-female
• Type: 1/4λ ground plane large band
• Frequency range @ SWR ≤1.5: 380-480 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Radiation (E-plane): beamwidth @ -3 dB = 80°
• Radiation angle: 0°
• Polarization: linear vertical
• Gain: 0 dBd, 2.15 dBi
• Max. Power (CW) @ 30°C: 300 Watts
• Grounding protection: All metal parts are DC-grounded, the inner conductor shows a DC short
• Connector: N-female
• Type: 3x5/8λ ground plane colinear
• Frequency range: 370-510 MHz (tunable)
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Radiation (E-plane): beamwidth @ -3 dB = 25°
• Radiation angle: -2°
• Polarization: linear vertical
• Gain: 4.6 dBd, 6.75 dBi
• Max. Power (CW) @ 20°C: 200 Watts
• Grounding protection: All metal parts are DC-grounded, the inner conductor is shows a DC short
• Connector: N-female, gold plated central pin
• Type: 3x5/8λ ground plane colinear
• Frequency range @ SWR ≤2: 427-443 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Radiation (E-plane): beamwidth @ -3 dB = 24°
• Radiation angle: 0°
• Polarization: linear vertical
• Gain: 4.6 dBd, 6.75 dBi
• Max. Power (CW) @ 30°C: 200 Watts
• Grounding protection: All metal parts are DC-grounded, the inner conductor is coupled capacitively
• Connector: N-female, gold plated central pin
Special gross price: 104.45€ (Net price: 82.25€)
• Type: CB 27 MHz band: 1/4 λ central loaded; FM band: 1/4 λ helical loaded; GSM 900 MHz band: 1/4 λ
• Frequency range: CB 27 MHz band: tunable 26.8 .. 27.6 MHz by rotation of tuning cap, AM-FM band: AM 0.15-1.6 MHz, FM 87.5-108 MHz, GSM 900 MHz band: TX-band 880-915 MHz, RX-band 935-960 MHz
• Impedance: AM-FM band: 150 Ω; CB and GSM bands: 50 Ω
• Polarization: linear vertical
• Bandwidth @ SWR ≤ 2: CB 27 MHz band: ≥ 440 KHz (40 channel); GSM 900 MHz band: ≥ 100 MHz
• SWR @ res. freq.: ≤ 1.2
• Max. power: CB 27 MHz band: 10 Watts; GSM 900 MHz band: 20 Watts
• Type: CB 27 MHz band: 1/4 λ central loaded; FM band: 1/4 λ helical loaded; GSM 900 MHz band: 1/4 λ
• Frequency range: CB 27 MHz band: tunable 26.8 .. 27.6 MHz by rotation of tuning cap, AM-FM band: AM 0.15-1.6 MHz, FM 87.5-108 MHz, GSM 900 MHz band: TX-band 880-915 MHz, RX-band 935-960 MHz
• Impedance: AM-FM band: 150 Ω; CB and GSM bands: 50 Ω
• Polarization: linear vertical
• Bandwidth @ SWR ≤ 2: CB 27 MHz band: ≥ 440 KHz (40 channel); GSM 900 MHz band: ≥ 100 MHz
• SWR @ res. freq.: ≤ 1.2
• Max. power: CB 27 MHz band: 10 Watts; GSM 900 MHz band: 20 Watts
• Cable lenght / Type / Connector: CB 27 MHz band: 215 mm / RG316 / FME-male; FM band: 165 mm / RG316 / M10x0.75-male; GSM 900 MHz band: 120 mm / RG316 / FME-male
Special gross price: 63.12€ (Net price: 49.70€)
• Type: VHF: 6/8 λ; UHF: 3 x 5/8 λ colinear
• Frequency range: VHF: 142-148 MHz; UHF: 427-442 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Radiation (E-plane): VHF: beamwidth @ -3 dB = 61°; UHF: beamwidth @ -3 dB = 30°
• Radiation angle: VHF 0°; UHF 0°
• Polarization: linear vertical
• Gain: VHF: 2 dBd - 4.15 dBi; UHF: 4.2 dBd - 6.35 dBi
• Max. Power (CW) @ 30°C: 200 Watts
• Grounding protection: All metal parts are DC-grounded, the inner conductor is coupled capacitively
• Connector: N-female, gold plated central pin
• Type: 1/4λ
• Frequency range: tunable 108-550 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Polarization: linear vertical
• Gain: 0 dB ref. to a λ /4 whip
• Bandwidth @ SWR ≤2: 5.2 MHz @ 108MHz
• SWR @ res. freq.: 1.8 @ 108MHz
• Max. Power (CW) @ 30°C: 100 Watts
• This article refers to antenna rod only. The antenna base is not part of this article.
• Type: 1/4λ
• Frequency range: tunable 108-550 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Polarization: linear vertical
• Gain: 0 dB ref. to a λ /4 whip
• Bandwidth @ SWR ≤2: ≥ 11 MHz @ 108 MHz
• SWR @ res. freq.: ≤ 1.4@ 108 MHz
• Max. Power (CW) @ 30°C: 100 Watts
• Connector: UHF-male (PL 259)
• This article refers to antenna rod only. The antenna base is not part of this article.
• Type: 1/4λ
• Frequency range: tunable 108-550 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Polarization: linear vertical
• Gain: 0 dB ref. to a λ /4 whip
• Bandwidth @ SWR ≤2: see diagram
• SWR @ res. freq.: see diagram
• Max. Power (CW) @ 30°C: 100 Watts
• This article refers to antenna rod only. The antenna base is not part of this article.
• Type: 1/4λ
• Frequency range: tunable 108-550 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Polarization: linear vertical
• Gain: 0 dB ref. to a λ /4 whip
• Bandwidth @ SWR ≤2: ≥ 11.5 MHz @ 108 MHz
• SWR @ res. freq.: ≤ 1.5 @ 108 MHz
• Max. Power (CW) @ 30°C: 100 Watts
• Connector: UHF-male (PL 259)
• This article refers to antenna rod only. The antenna base is not part of this article.
• Type: 1/4λ
• Frequency range: tunable 55-550 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Polarization: linear vertical
• Gain: 0 dB ref. to a λ /4 whip
• Bandwidth @ SWR ≤2: 6.4 @ 55 MHz
• SWR @ res. freq.: ≤1.3 @ 55 MHz
• Max. Power (CW) @ 30°C: 100 Watts
• Cable: 5m RG-58
• Type: 5/8λ
• Frequency range: tunable 136-174 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Polarization: linear vertical
• Gain: 4.15 dBi (1.5 dB ref. to a λ /4 whip)
• Bandwidth @ SWR ≤2: ≥ 6.7 MHz @ 136 MHz
• SWR @ res. freq.: ≤ 1.2
• Max. Power (CW) @ 30°C: 250 Watts
• Grounding protection: All metal part are DC-grounded, the inner conductor shows a DC-short
• Connector: UHF-male (PL 259)
Special gross price: 26.07€ (Net price: 20.52€)
• Type: 5/8λ
• Frequency range: tunable 139.3-175 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Polarization: linear vertical
• Gain: 1.5 dB ref. to a λ /4 whip
• Bandwidth @ SWR ≤2: ≥ 6.6 MHz @ 139.3 MHz
• SWR @ res. freq.: ≤ 1.2 @ 139.3 MHz
• Max. Power (CW) @ 30°C: 150 Watts
• Grounding protection: All metal part are DC-grounded, the inner conductor shows a DC-short
• Connector: UHF-male (PL 259)
• Type: discone
• Frequency range: RX band: 25-1300 MHz; TX band (@ SWR ≤2): 49.5-50.5, 120-180, 215-300, 415-465, 610-650, 710-1000, 1130-1300 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Radiation (E-plane): frequency dependent, see the pattern
• Radiation angle: frequency dependent, see the pattern
• Polarization: linear vertical
• Gain: 0 dBd - 2.15 dBi @ lowest frequency
• Max. Power (CW) @ 30°C: VHF: 300 Watts; UHF: 200 Watts
• Connector: N-female, gold plated central pin
• Type: discone
• Frequency range: RX band: 100-2000 MHz; TX band (@ SWR ≤2): 130-160, 215-440, 610-685, 870-960, 1070-1500, 1620-1800, 1860-2000 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Radiation (E-plane): frequency dependent, see the pattern
• Radiation angle: frequency dependent, see the pattern
• Polarization: linear vertical
• Gain: 0 dBd - 2.15 dBi @ lowest frequency
• Max. Power (CW) @ 30°C: 200 Watts
• Connector: N-female, gold plated central pin
• Type: 1/2 λ
• Frequency range: 156 - 162.6 MHz @ SWR ≤2
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Radiation (E-plane): beamwidth @ -3 dB= 60°
• Radiation anlge deg.: 23°
• Polarization: linear vertical
• Gain: 0 dBd - 2.15 dBi
• Max. Power (CW) @ 30°C: 100 Watts
• Grounding protection: All metal part are DC-grounded, the inner conductor is coupled capacitively
• Cable Length / Type: 5.5 m / white RG 58 C/U
• Standard mount: "M-8" NY
• A special nylon ring designed to fit around the SIRIO 817 radials to give extra support in high wind conditions
• Weight: 360g
• Type: 5/8λ ground plane
• Frequency range: tunable from 26.4 to 28.4 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Polarization: linear vertical
• Gain: 1.5 dBd, 3.65 dBi
• Bandwidth @ SWR ≤ 2: ≥ 2000 KHz
• SWR @ res. freq.: ≤ 1.1
• Max. power: 1000 Watts (CW) continuous, 3000 Watts (CW) short time
• Feed system / position: Transformer DC-ground / base
• Connector: UHF-female
• Type: 5/8λ
• Frequency range: tunable from 26.4 to 28.2 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Polarization: linear vertical
• Gain: 1.3 dBd, 3.45 dBi
• Bandwidth @ SWR ≤ 2: ≥ 2100 KHz
• SWR @ res. freq.: ≤ 1.1
• Max. power: 1000 Watts (CW) continuous, 3000 Watts (CW) short time
• Feed system / position: Transformer DC-ground / base
• Connector: UHF-female
Special gross price: 171.79€ (Net price: 135.27€)
• Type: central loaded
• Frequency range: tunable from 26.5 to 28.5 MHz
• Impedance: 50Ω
• Polarization: linear vertical
• Bandwidth @ SWR ≤ 2: ≥ 440 KHz (40 channel)
• SWR @ res. freq.: ≤ 1.2
• Max. power: 20 Watts (CW) continuous, 100 Watts (CW) short time
• Mounting: "N"
• Cable length / type: 4 m / RG-58
Special gross price: 21.10€ (Net price: 16.62€)
• Type: Logarithmic laded
• Frequency range: tunable from 26.9 to 27.5 MHz
• Impedance: 50Ω
• Polarization: linear vertical
• Bandwidth @ SWR ≤ 2: ≥ 700 KHz (65 channel)
• SWR @ res. freq.: ≤ 1.2
• Max. power: 20 Watts (CW) continuous, 100 Watts (CW) short time
• Mounting: "N"
• Cable length / type: 4 m / RG-58
Special gross price: 22.42€ (Net price: 17.65€)
• Type: central loaded
• Frequency range: tunable from 27 to 27.5 MHz
• Impedance: 50Ω
• Polarization: linear vertical
• Bandwidth @ SWR ≤ 2: ≥ 280 KHz (23 channel)
• SWR @ res. freq.: ≤ 1.2
• Max. power: 10 Watts (CW) continuous, 50 Watts (CW) short time
• Cable length / type: 3 m / RG-58 with UHF PL-259
• Standard mount: Ø 90 mm magnetic mount
Special gross price: 26.53€ (Net price: 20.89€)
• Type: base loaded
• Frequency range: tunable from 27 to 28.5 MHz
• Impedance: 50Ω
• Polarization: linear vertical
• Bandwidth @ SWR ≤ 2: ≥ 1240 KHz (110 channel)
• SWR @ res. freq.: ≤ 1.3
• Max. power: 150 Watts (CW) continuous, 450 Watts (CW) short time
• Mounting: UHF-male (PL 259)
• Cable length / type: not supplied
Special gross price: 20.95€ (Net price: 16.49€)
The antennas are used in civil defence, ambulance, fire brigade, law enforcement, military, data transmission, civil small aircraft and amateur radio.
What antennas does Sirio Antenne produce?
The managers of Sirio Antenne know exactly how important research and development are in the life of a company like Sirio Antenne. That's why they've put a lot of effort into constantly expanding this department over the last 50 years. The brand, which has been on the market for more than 50 years, currently has 4 fully researched sites of around 6,000 square metres.
Their research and development activities involve the development and optimisation of new products and manufacturing processes. Naturally, these activities are carried out using state-of-the-art instrumentation, electromagnetic simulation software and an anechoic chamber.
The quality and performance of their shortwave, VHF, UHF, 2G, 3G, 4G LTE 5G, Wlan and WIFI antennas, RF connectors, and the mounts and brackets developed for them are tested under extreme temperatures and humidity.
DND Telecom Ltd has been distributing Sirio antennas for over 20 years!
The company's focus is not only on research, development and manufacturing, but also on providing accurate and professional service to their partners and customers. For this reason, the company has a large stock to guarantee fast delivery of its antennas. Sirio Antenne S.r.l. has always stood out for its courageous decisions. Many companies have moved their production to the Far East in order to reduce costs.
Sirio, on the other hand, manufactures its antennas entirely in Italy. This allows for efficient and direct control of the supply chain.Precisely to ensure that they can serve their customers in neighbouring countries, they supply their customers in those countries through importers. In this context, DND Telecom Ltd has been distributing Sirio antennas and accessories for more than 20 years.
What scientific projects is Sirio involved in?
With a strong professional background in antenna development and manufacturing, the company has been involved in a very exciting international adventure since the end of 2017. The company is collaborating with the Italian Astrophysics Institute in the prototyping of the international SKA project.
They owe this to their considerable expertise in the development of the SKALA antenna, which won the tender to build the first low-frequency antenna for the SKA Observatory, abbreviated SKAO, in 2022 after nearly five years of painstaking work. But what is the SKAO project and why is it so exciting? It's an international observatory that is building the largest radio antenna farm on Earth to explore the hitherto unknown frontiers of the galaxy and the mysteries surrounding the formation of our planet and other celestial bodies.
These radio antennas will be deployed in Australia, where low-frequency antennas and in South Africa, where medium-frequency antennas will be deployed. The company is very proud to be involved in this challenging project.