Products

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R&D-departments, where our engineers are always working
to develop new innovative products in co-operation with our customers.

S.1 series

Centre-fed folded dipole antenna.

  • The S.1 series are of a rugged and reliable construction.
  • The one piece folded dipole incorporates a d.c. short to minimise static interference.
  • The balun assembly is completely encapsulated in epoxy resin, totally preventing moisture ingress, and has been tested to BS5490:IP67.
  • These antennas can be arranged in a variety of arrays in combination with CPS (cable power splitter) series to produce a wide range of radiation patterns.
  • They are supplied as standard with 3 metres of RG 213 cable terminated with an \'N\' type socket.
  • Heavy duty and stainless steel options are available.

ORDERING DESIGNATIONS

 

TYPEFREQUENCYPRODUCT NO.
S.1-7266 - 80 MHzReplaced by 7050060
S.1-8270 - 86 MHzReplaced by 7050075
S.1-9888 - 108 MHzReplaced by 7050088
S.1-127117 - 137 MHzReplaced by 7050118
S.1-160145 - 176 MHzReplaced by 7050158
S.1-200192 - 208 MHzReplaced by 7050170
S.1-405380 - 430 MHzReplaced by 7051400
S.1-380-470380 - 470 MHzReplaced by S.1-380-470
S.1-445420 - 470 MHzReplaced by 7051420
S.1-475430 - 520 MHzReplaced by S.1-475

SPECIFICATIONS 

ELECTRICAL 
FREQUENCY RANGE66 - 520 MHz
INPUT IMPEDANCE50 Ω
BANDWIDTH± 10% of centre frequency
SWR< 1.5:1
FRONT TO BACK RATIO4 dB
MAXIMUM INPUT POWER150 W
POLARIZATIONVertical
FORWARD GAIN2 dBd
3 dB BEAMWIDTHE Plane 85º
H Plane 200º
(Gain & RPE assmes mount on conductive pole)
MECHANICAL 
STANDARD CONNECTION3 m (118.11 in.) Length of RG 213
c/w \'N\' type socket
ELEMENTS (UHF)
(> 138 MHz)
UHF 12.7 mm dia. x 1.6 mm
(0.50 in. dia x 0.06 in.)
wall aluminium alloy grade 6063T6
ELEMENTS (VHF)
(< 138 MHz)
VHF 19.0 mm dia. x 1.6 mm
(0.75 in. dia x 0.06 in.)
wall aluminium alloy grade 6063T6
SUPPORT BOOM31.7 mm dia. x 2.6 mm
(1.25 in. dia x 0.10 in.)
wall aluminium alloy grade 6082T6
FASTENERSStainless steel grade A2-70
SADDLE CLAMPSDiecast zinc alloy
INSULATOREpoxy resin encapsulant
LIGHTNING PROTECTIONDirect grounded
MOUNTING BRACKETSSee mounting accessories (not supplied)
TYPICAL WEIGHT (UHF)UHF 1.9 kg (4.19 lb.)
TYPICAL WEIGHT (VHF)VHF 2.8 kg (6.17 lb.)
TYPICAL LENGTH (UHF)UHF 1 m (39.37 in.)
TYPICAL LENGTH (VHF)VHF 1.33 m ( 52.36 in.)
TYPICAL WIND LOADING
@ 162 km/h (UHF)
UHF 54 N
TYPICAL WIND LOADING
@ 162 km/h (VHF)
VHF 148 N

MOUNTING ACCESSORIES

Mounting accessories to be ordered separately.

TYPEDIMENSIONPRODUCT NO.
1763-100 123001001
UA64-2325 - 50 mm123001006
UA64-2325 - 76 mm123001007
UA66-2425 - 50 mm123001017
UA66-2425 - 76 mm123001018
UA66-2425 - 100 mm123001019
UA66-2425 - 115 mm123001020

 

 

1763-100

Galvanised steel-cross-over clamp, fits 32 mm (1-1/4") diameter antenna booms to up to 50 mm (2") diameter poles, max. length 1500 mm.

 

UA64-23

Circular cast alloy clamp, gives a good two point fixing, supplied as standard with 4 x 50 mm stainless steel ‘U’ bolts and two half-moon cast spacers to fit antenna booms of 25 to 50 mm diameter. Will also accomodate 76 mm (3”) ‘U’ bolts to fit masts of that diameter. (order UB06).

 

UA66-24

Rectangular cast alloy clamp, gives a good two point fixing, supplied as standard with 4 x 50 mm stainless steel ‘U’ bolts and two half-moon cast spacers to fit antenna booms of 25 to 50 mm diameter.

To fit 76 mm (3”) masts (order UB06 ‘U’ bolts).

To fit 100 mm (4”) masts (order UB07 ‘U’ bolts).

To fit 115 mm (4 1/2”) masts (order UB09 ‘U’ bolts).

 

 

TYPICAL RADIATION PATTERN (E-PLANE)

 

 

TYPICAL RADIATION PATTERN (H-PLANE)

 

 

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