GP 27

¼ λ Ground-Plane Antenna for the 27 MHz Band or for Frequencies within 27…45 MHz

DESCRIPTION

GP 27 is a glass fibre ground-plane antenna of the triple-leg type.
The antenna is delivered factory-tuned to 27 MHz – further adjustment is not necessary for this band.
Tunable (by cutting) to frequencies within the range: 27…45 MHz.
The antenna can be field-tuned following the cutting diagrams below as a guide and fine-tuning using an SWR-meter.
For a small cutting charge the antenna may also be supplied factory-tuned. In this case, please state centre frequency.
GP 27 is made of first class materials and will endure rough climates for years – no maintenance required.

The radiator is measured from its free end to the bottom of the black insulator, while the radials are measured from their free ends to where they meet the GP-head.

ORDERING DESIGNATIONS

TYPE	PRODUCT NO.
GP 27	100000162
GP 27/42 mm	100000163

SPECIFICATIONS

ELECTRICAL
MODEL	GP 27
ANTENNA TYPE	¼ λ triple-leg ground-plane
FREQUENCY	Tunable by cutting within: 27…45 MHz
IMPEDANCE	Nom. 50 Ω
RADIATION	Omnidirectional
POLARIZATION	Vertical
GAIN	2 dBi 0 dBd
BANDWIDTH	1.0 MHz @ 27 MHz (SWR < 1.5) 1.5 MHz @ 45 MHz (SWR < 1.5)
SWR	< 1.3 @ f. res.
MAX. POWER	1 kW
MECHANICAL
TEMP. RANGE	-30° C → +70° C
CONNECTOR	UHF-female (fitting PL-259)
WIND SURFACE	0.062 m²
WIND LOAD	78 N @ 160 km/h
COLOUR	White/bright chrome
MATERIALS	Elements: Glass fibre Metal parts: Bright chromed brass
TOTAL HEIGHT	Approx. 4.5 m
WEIGHT	Approx. 1.7 kg
MOUNTING	38 mm dia. mast tube (42 mm dia. as option, see note)

PLEASE NOTE

The GP 27 can be delivered with a GP-head for mounting on 42 mm dia. mast tube (standard is 38 mm) when ordering as option GP 27/42 mm.

To top

CUTTING DIAGRAMS