Antennas Archives - SMC - Antenna and Mast Specialists

Vehicle Mounted

WMPC 2.4

Max Power: 100 W 1.5MHz to 3.0MHz

Capability: 150 W 3.0MHz to 30.0MHz rated SSB Duty Cycle

VSWR: < 1.5 : 1 at resonance

Impedance: Nominal 50 ohm (less at lower frequencies). Impedance matching networks not normally needed for valve or solid state amplifiers)

Bandwidth: For 2.1 VSWR: 20kHz at 1.5MHz, 40kHz at 3.0MHz, 80kHz at 7.0MHz, 150kHz at 10MHz, 300kHz at 22MHz and 500kHz at 30MHz

Mast Section: Fibreglass with non ferrous fittings 3/8 “UNF stainless steel screw fittings for basemount. Partial inductive loading on mast with whole enclosed in touch black PVC heat shrunk sleeve.

Resonator/Whip Section Former: Non ferrous metal fitting on high impact resistant formers. Lengths vary from 13″ at 1.5MHz to 6″ at 30MHz. Individual wound and calibrated, coated 100% polyurethane, finished with tough black PVC case. Resonator suppled with stainless steel whips to order.

Transportable Wide Band Antenna

Antenna Elements: PVC covered kevlar braid, drab olive

Balun Transformer: Fully encapsulated non hygroscopic with NATO style spigot

Deployment Time: 30 minutes max

Feeder Cable: 20m URM67

Frequency Range: 2.5 – 30MHz

Gain: up to 3 dBi

Impedance: 50 ohms unbalanced

Input Connector: N or UHF

Loads: GRP housing, fully strain relieved

Mast: 11 MTS epoxy bonded GRP 50mm OD with prestretched 4-way polyesters guy system

Packed Dimensions: 2m x 0.3m x 0.7m

Packed Weight: 36kg

Polarisation: Horizontal

Power Rating: receive, 400W, 1kW

Site Requirements (inc. masts): 47m x 22m max

VSWR: Typically 2.5 : 1 or better

TFDBBE

Cable Assembly Included: No

Freq. Range (MHz): 2.5 – 30MHz

Nett Weight (kg) (Approx): 5

Overall Length (m): 28.5

Power Rating (PEP): 300W

TFDBB/LC

Cable Assembly Included: No

Freq. Range (MHz): 2.5 – 30MHz

Nett Weight (kg) (Approx): 6

Overall Length (m): 30

Power Rating (PEP): 250W

TFDBB/400

Cable Assembly Included: Yes

Freq. Range (MHz): 2.5 – 30MHz

Nett Weight (kg) (Approx): 15

Overall Length (m): 30

Power Rating (PEP): 300W

TFDBB/1K

Cable Assembly Included: Yes

Freq. Range (MHz): 2.5 – 30MHz

Nett Weight (kg) (Approx): 24

Overall Length (m): 30

Power Rating (PEP): 1kW

TFDBB

Cable Assembly Included: Yes

Freq. Range (MHz): 2.5 – 30MHz

Nett Weight (kg) (Approx): 12

Overall Length (m): 30

Power Rating (PEP): 250W

TFD/RTX-05BBE/C

Cable Assembly Included: No

Freq. Range (MHz): 10 – 30MHz

Nett Weight (kg) (Approx): 6

Overall Length (m): 10

Power Rating (PEP): 250W

TFD/RTX-05BBE/B

Cable Assembly Included: No

Freq. Range (MHz): 7.5 – 30MHz

Nett Weight (kg) (Approx): 6

Overall Length (m): 13.5

Power Rating (PEP): 250W

TFD/RTX-05BBE/A

Cable Assembly Included: No

Freq. Range (MHz): 5.5 – 30MHz

Nett Weight (kg) (Approx): 6

Overall Length (m): 18.5

Power Rating (PEP): 250W

TFD/RTX-05BB/C

Cable Assembly Included: Yes

Freq. Range (MHz): 10 – 30MHz

Nett Weight (kg) (Approx): 12

Overall Length (m): 10

Power Rating (PEP): 250W

TFD/RTX-05BB/B

Cable Assembly Included: Yes

Freq. Range (MHz): 7.5 – 30MHz

Nett Weight (kg) (Approx): 12

Overall Length (m): 13.5

Power Rating (PEP): 250W

TFD/RTX-05BB/A

Cable Assembly Included: Yes

Freq. Range (MHz): 5.5 – 30MHz

Nett Weight (kg) (Approx): 12

Overall Length (m): 18.5

Power Rating (PEP): 250W

Portable Dipole Antenna LW8 Series

Centre junction: Type SMC CCJ/2 carbon loaded ultra-violet resistant moulding

Frequency Range: 3 – 30MHz or 2 – 30MHZ with ATU as a long wire antenna

Input Connector: BNC or UHF to order

Input Impedance: 50ohm

Kit bag: Optional

LW8 / K: PVC covered kevlar braid with plaited copper wite

Metal Fittings: Stainless steel

Polarisation: Horizontal

Power Rating: Rx – 500W average

VSWR: 2 : 1 max at 50 ohm

MF ‘T’ Antenna

FWB 2530 Wide Band Dipole

Frequency Range: 2.5 – 30MHz

Gain: >3 dBi

Impedance: 50 ohm unbalanced

Polar Diagram ‘H’ Plane: Generally omnidirectional

Polar Diagram ‘E’ Plane: 30 – 90

Power: Rx – 1kW AVE

VSWR: 3 : 1 max, 2.1 : 1 AVE

Full Wave Cage Dipole

Bandwidth: 1.5 – 2.5 : 1 of designed frequency

Design Frequencies Available: 2.5 – 30MHz

Design Length: Dependent upon design frequency

Input Impedance: 500 ohm

Power Rating: Up to 10kW

VSWR: >2 : 1

Folded Dipole Antenna

Bandwidth: 1.5 – 2.5 : 1 of designed frequency

Design Frequencies Available: 2.5 – 30MHz

Design Length: Dependent upon design frequency

Input Impedance: 600 ohm

Power Rating: Up to 1kW

VSWR: >2 : 1

Fan Dipole Antenna

Antenna Elements: 7/0.914mm (7/036″) or 7/1.118mm (7/044″) hard drawn copper strand

Azimuth Radiation: Depends on frequency and height of antenna

Freq. Range (MHz): 2 – 30 MHz (2, 3, or 4 spot frequencies as a long wire antenna)

Input Impedance: 50 – 75 ohm depending on the design height

Insulators: Carbon loaded ultra violet resistant polypropylene

Metalwork: Stainless steel or plated brass

Polarisation: Horizontal

Power Rating: up to 1kW

VSWR: Normally better than 2 : 1

Delta Loop Antenna (TDLS)

Frequency Range: 3 – 30MHz (up to 60MHZ with degraded polar diagram)

Power Rating: Rx-lkW PEP

VSWR: 2.0 : 1 Average

Impedance: 50 ohm unbalanced

Polarisation: Dipole: Horizontal, Delta: Mainly horizontal with vertical elements

Gain: Up to 7 dBi (Delta) at 12MHZ

Input Connector: N

Packed Weight: 32kg

Packed Dimensions: 0.55m x 0.55m x 0.1m

Feeder Cable: Low loss URM67, fitted strain relief

Site Requirements: Dependent on configuration

Deployment Time: 5 – 15 minutes

Antenna Elements: PVC covered Kevlar TCW braid, drab olive

Load: Cast aluminium housing

Balun Transformers: GRP housing, aluminium spinnings, drab olive

Metal Fittings: Stainless steel, all blackised

Centre Fed Dipole Antenna

Antenna Elements: 7/0.44″ (7/1.118mm) or 7/0.36″ (7/0.914mm) hard drawn copper magnesium strand

Bandwidth: + / – 2% of centre frequency

Baluns: SMC can supply a wide range of matching balun transformers for all combinations of input impedances and powers.

Cable Length: 10m

Freq. Range (MHz): 2 – 30MHz

Impedance: 50 ohm

Insulators: Carbon loaded polypropelene

Mounting Height: 5m

Polarisation: Horizontal

Power: Up to 2kW

Spreaders: Antenna spreaders used on FDA/1 are fibreglass. Feed line spreaders are porcelain or fibreglass as appropriate

VSWR: > 1.5 : 1