Sirio Car and Truck Multiband Mobile Antenna
The Sirio multiband vehicle antenna category includes vehicle antennas designed to operate across multiple radio frequency bands. The documented range includes HF/VHF, VHF/UHF, CB/FM/GSM, and wideband 108-960 MHz configurations. The antennas include 1/4 Lambda, 1/2 Lambda, 5/8 Lambda, and 2 x 5/8 Lambda designs. When selecting the appropriate antenna, the frequency range, impedance, gain, maximum power, cabling, connector, and mechanical configuration should all be checked together. Read more...
• Type: 1/4 λ for 46.5...61.5 MHz band; 5/8 λ for 135...175 MHz band
• Frequency range: tunable 46.5...61.5MHz & 135...175 MHz @ SWR ≤1.3
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Polarization: linear vertical
• Gain: 0 dB ref. to a λ /4 whip for 46.5...61.5 MHz band; 2 dB ref. to a λ /4 whip for 135...175 MHz band
• Bandwidth @ SWR ≤ 1.5: ≥ 2.5 MHz @ 46.5 MHz,≥ 3.4 MHz @ 135 MHz
• Max. Power (CW) @ 30°C: 100 Watts
• Standard Mount: "S"
• Cable Length / Type: 5 m / RG 58
• Type: 1/4 λ for 47.5...60.5 MHz band; 5/8 λ for 140...175 MHz band
• Frequency range: tunable 47.5...60.5MHz & 140...175 MHz @ SWR ≤ 1.3
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Polarization: linear vertical
• Gain: 0 dB ref. to a λ /4 whip for 46.5...61.5 MHz band; 2 dB ref. to a λ /4 whip for 135...175 MHz band
• Bandwidth @ SWR ≤ 1.5: ≥ 2 MHz @ 47.5 MHz,≥ 2.5 MHz @ 140 MHz
• Max. Power (CW) @ 30°C: 100 Watts
• Standard Mount: "SL"
• Cable Length / Type: 5 m / RG 58
• Type: 1/4 λ for 47.5...60.5 MHz band; 5/8 λ for 140...175 MHz band
• Frequency range: tunable 47.5...60.5MHz & 140...175 MHz @ SWR ≤ 1.3
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Polarization: linear vertical
• Gain: 0 dB ref. to a λ /4 whip for 46.5...61.5 MHz band; 2 dB ref. to a λ /4 whip for 135...175 MHz band
• Bandwidth @ SWR ≤ 1.5: ≥ 2 MHz @ 47.5 MHz,≥ 2.5 MHz @ 140 MHz
• Max. Power (CW) @ 30°C: 100 Watts
• This is only the whip part of the SM 48/140 HF/VHF mobile antenna!
• Type: 1/4 λ for 47.5...60.5 MHz band; 5/8 λ for 140...175 MHz band
• Frequency range: tunable 47.5...60.5MHz & 140...175 MHz @ SWR ≤ 1.3
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Polarization: linear vertical
• Gain: 0 dB ref. to a λ /4 whip for 46.5...61.5 MHz band; 2 dB ref. to a λ /4 whip for 135...175 MHz band
• Bandwidth @ SWR ≤ 1.5: ≥ 2 MHz @ 47.5 MHz,≥ 2.5 MHz @ 140 MHz
• Max. Power (CW) @ 30°C: 100 Watts
• Standard Mount: "S"
• Cable Length / Type: 5 m / RG 58
• Type: VHF 1/4 λ, UHF 5/8 λ
• Frequency range: VHF 141-149 MHz, UHF 422-447 MHz @ SWR ≤2
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Polarization: linear vertical
• Gain: VHF 0 dB, UHF 2 dB ref. to a λ /4 whip
• Max. Power (CW) @ 30°C: VHF 150W, UHF 100W
• Grounding protection: All metal parts are DC-grounded, the inner conductor is coupled capacitively
• Connector: UHF-male (PL 259)
• Type: VHF 1/2 λ, UHF 2 x 5/8 λ
• Frequency range: VHF 142-148 MHz, UHF 430-440 MHz @ SWR ≤2
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Polarization: linear vertical
• Gain: VHF 0.7 dB, UHF 4.4 dB ref. to a λ /4 whip
• Max. Power (CW) @ 30°C: VHF 150W, UHF 100W
• Grounding protection: All metal parts are DC-grounded, the inner conductor is coupled capacitively
• Connector: UHF-male (PL 259)
• 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: 60.61€ (Net price: 47.73€)
• Type: 1/4 λ, omnidirectional
• Polarization: vertical
• Frequency range: 108-960 MHz
• Systems: 2m-HAM, 1.25m-HAM, 70cm-HAM, VHF Airband, VHF Marine Band, VHF Low-band (66-88MHz), ORBCOMM M2M, AIS-162MHz, TETRA-350, TETRA, CDMA-450, LTE-450, GSM-R, GSM-900, ISM-169MHz, ISM/SIGFOX/LoRa 868MHz, ISM/SIGFOX/LoRa 915MHz
• Impedance: 50 Ω
• Gain: 0 dB
• Max. Power: 100 Watts @ 108-550 MHz, 30 Watts @ 550-960 MHz
• Cable: 5 m RG58, FME female
• Type: 1/4 λ, omnidirectional
• Polarization: vertical
• Frequency range: 108-960 MHz
• Systems: 2m-HAM, 1.25m-HAM, 70cm-HAM, VHF Airband, VHF Marine Band, VHF Low-band (66-88MHz), ORBCOMM M2M, AIS-162MHz, TETRA-350, TETRA, CDMA-450, LTE-450, GSM-R, GSM-900, ISM-169MHz, ISM/SIGFOX/LoRa 868MHz, ISM/SIGFOX/LoRa 915MHz
• Impedance: 50 Ω
• Gain: 0 dB
• Max. Power: 100 Watts @ 108-550 MHz, 30 Watts @ 550-960 MHz
• Cable: 3 m RG58, FME female
• Type: VHF: 1/2 λ; UHF: 2 x 5/8 λ Colinear
• Ground plane independent
• Radiation: Omnidirectional
• Polarization: Linear vertical
• Frequency range: VHF: 142-148 MHz; UHF: 430-440 MHz
• Systems: 2m-HAM, 70cm-HAM, ORBCOMM M2M, TETRA
• Gain: VHF 0.6 dB; UHF 4.6 dB ref. to a λ/4 whip
• Max Power: VHF: 70 W (CW); UHF: 80 W (CW)
• Grounding protection: DC-Ground
• Connector: UHF-male (PL-259)
• Materials: Brass, Stainless Steel 17/7 PH, Nylon
• Height (approx): 1000 mm
• Weight (approx): 300 g
• Mounting type: On-Connector
Sirio multiband vehicle antenna - main technical characteristics
The category includes several different multiband antenna designs. In the HF/VHF configurations, 1/4 Lambda operation is documented for the HF band and 5/8 Lambda for the VHF band. The VHF/UHF antennas include 1/4 Lambda and 5/8 Lambda combinations, as well as 1/2 Lambda and 2 x 5/8 Lambda designs. Wideband versions covering a larger frequency range use a 1/4 Lambda omnidirectional design with vertical polarization.
Which frequency bands are covered by Sirio vehicle antennas?
The documented HF/VHF frequency ranges are 46.5-61.5 MHz and 135-175 MHz, as well as 47.5-60.5 MHz and 140-175 MHz. The VHF/UHF configurations include 141-149 MHz with 422-447 MHz, and 142-148 MHz with 430-440 MHz. A wideband vehicle antenna is specified for the 108-960 MHz frequency range.
HF, VHF, and UHF antennas in one vehicle communication system
In configurations combining VHF antenna and UHF antenna functions, the individual bands can use different antenna structures and different gain values. Documented examples include a VHF 1/4 Lambda and UHF 5/8 Lambda design with 0 dB and 2 dB gain respectively, as well as a VHF 1/2 Lambda and UHF 2 x 5/8 Lambda design with 0.7 dB and 4.4 dB gain. Another VHF/UHF configuration is specified with 0.6 dB gain in the VHF band and 4.6 dB in the UHF band.
Which systems are supported by the wideband antenna?
The 108-960 MHz 1/4 Lambda omnidirectional configuration has several documented radio system applications. These include 2m-HAM, 1.25m-HAM, 70cm-HAM, VHF Airband, VHF Marine Band, VHF Low-band 66-88 MHz, ORBCOMM M2M, AIS-162MHz, TETRA-350, TETRA, CDMA-450, LTE-450, GSM-R, GSM-900, ISM-169MHz, as well as ISM/SIGFOX/LoRa 868MHz and ISM/SIGFOX/LoRa 915MHz.
Sirio vehicle antenna with 108-960 MHz frequency range
The documented impedance of the 108-960 MHz configurations is 50 ohm, their gain is 0 dB, and their polarization is vertical. Maximum power depends on frequency: 100 W between 108-550 MHz and 30 W between 550-960 MHz. Depending on the configuration, the cabling is 3 m or 5 m RG58 with an FME female connector. A magnetic-mount version is also included in the category.
CB, FM, and GSM multiband antenna in one design
The category also includes an antenna combining CB, FM, and GSM functions. The documented frequency range is 26.8-27.6 MHz for CB, 0.15-1.6 MHz for FM, and 880-915 MHz for GSM. The CB section is specified for 27 MHz, while the FM and GSM sections use 1/4 Lambda designs. The impedance is 50 ohm at 27 MHz and 900 MHz, while the FM section has an impedance of 150 ohm.
What maximum power is specified for the CB/FM/GSM antenna?
The documented maximum power of the combined CB/FM/GSM configuration is 10 W in the CB band and 20 W in the GSM band. The total antenna length is 500 mm. The category includes both a separate antenna whip and a complete vehicle antenna using this technical configuration, so it should also be checked whether a complete antenna or an antenna element is required.
Antenna gain, impedance, and maximum power
The antenna impedance is 50 ohm for most documented configurations. However, the electrical parameters of multiband antennas are specific to each frequency band. The documented maximum power of the VHF/UHF versions is 100 W, while one configuration is specified for 150 W in the VHF band and 100 W in the UHF band. Another VHF/UHF configuration is specified for 70 W CW in VHF and 80 W CW in UHF.
Sirio antenna with different gain values in VHF and UHF bands
- VHF 141-149 MHz: 0 dB gain.
- UHF 422-447 MHz: 2 dB gain.
- VHF 142-148 MHz: documented gain of 0.7 dB or 0.6 dB.
- UHF 430-440 MHz: documented gain of 4.4 dB or 4.6 dB.
- 108-960 MHz wideband configuration: 0 dB gain.
The gain values should always be considered together with the corresponding antenna construction and frequency band. Because the category includes different designs, a single common gain or power value cannot be applied to all antennas.
Cabling, connection, and antenna mounting in vehicles
The antenna mounting and connection method vary by configuration. The 108-960 MHz antennas are documented with 3 m or 5 m RG58 cable and an FME female connector. One VHF/UHF configuration uses a UHF male connector, also known as PL-259, and can be mounted directly to the connector. The documented materials of this antenna include brass, 17/7 PH stainless steel, and nylon.
Which physical configurations are included in the category?
The category includes conventional vehicle antennas, magnetic-mount versions, connector-mounted antennas, and separate antenna whips. One HF/VHF antenna whip has a documented length of 1340 mm, a weight of 550 g, and is made of stainless steel, nylon, and fiberglass with a DV connection. The connector-mounted VHF/UHF antenna is approximately 1000 mm high and weighs 300 g.
What should be checked when selecting a Sirio multiband vehicle antenna?
We recommend first determining the radio systems and frequency bands you need to use. Then check the antenna impedance, gain and maximum power for each band, followed by the cable, connector, and mounting requirements. With a multiband antenna, it is particularly important to verify each frequency band separately because the technical parameters may differ between bands.
Sirio multiband antenna selection checklist
- HF, VHF, UHF, CB, FM, GSM, or 108-960 MHz application.
- Exact frequency range of each band.
- 50 ohm impedance, with 150 ohm documented for the FM section of the CB/FM/GSM configuration.
- Omnidirectional radiation pattern where documented.
- Vertical or linear vertical polarization where specified.
- Antenna gain corresponding to each frequency band.
- Maximum power specified for each band.
- RG58 cable and FME female connector where included.
- PL-259 or DV connection where documented.
- Magnetic-mount, connector-mounted, or other vehicle antenna configuration.
FAQ - Sirio multiband vehicle antennas
- Which frequency bands are covered by the multiband vehicle antennas?
The documented range includes HF/VHF, VHF/UHF, CB/FM/GSM, and wideband configurations covering 108-960 MHz. - What is the impedance of the antennas?
Most documented configurations have 50 ohm impedance. In the CB/FM/GSM configuration, the FM section is specified with 150 ohm impedance. - Is there a vehicle antenna covering 108-960 MHz?
Yes. The category includes 1/4 Lambda omnidirectional configurations covering 108-960 MHz. - Can a multiband antenna be used for TETRA and LoRa systems?
The documented systems for the 108-960 MHz configuration include TETRA as well as 868 MHz and 915 MHz ISM/SIGFOX/LoRa. - What cabling is used with the wideband antennas?
The documented configurations use 3 m or 5 m RG58 cable with an FME female connector. - Is a connector-mounted multiband antenna available?
Yes. One VHF/UHF configuration uses a PL-259 connector and can be mounted directly to the connection point.
Summary
The Sirio multiband vehicle antenna category includes documented antenna configurations for several different radio communication systems. The range covers HF/VHF, VHF/UHF, CB/FM/GSM, and 108-960 MHz frequency ranges, with various omnidirectional, magnetic-mount, connector-mounted, and antenna whip designs. To select the appropriate antenna, the frequency bands, impedance, gain, maximum power, cabling, connection, and mechanical mounting should all be checked separately.