Various shortwave antennas for HF
GPM-1500 Wideband vertical HF antenna

GPM-1500Multiband vertical antenna for 1.8 to 30MHz, with reduced efficiency also useable on 50MHz.
Requires a simple coax tuner for operation, the built in tuners usually work well, in some cases a tuner extender (e.g. MFJ-914) is necessary.
The antenna can be installed anywhere, either on the rooftop, on the trailer hook or on a camper car during vacations. Due to the slim body the antenna is very unobtrusive. The antenna is fed with a coax cable of any length, PL connector. The radiator is grounded, thus preventing static discharge. Weight only 4kg, transport length only 1.3m, so it fits even baggage on air transports. The vertical distance between the U-brackets is 26cm.

Technical Data
Length: 6.30m
Radiator: Aluminum
Max. power load: 200 Watt
Mast diameter max: 60mm
Windload (140 km/h): 200N
Transport length: 1.3 m

Order No.
11235 GPM-1500 189.00


   Download Installation instructions GPM-1500

GP-3 / GP-2W / GP-3W

GP-3GP-3 - Groundplane antenna 10/15/20m
GP-2W - Groundplane antenna 12/17m
GP-3W - Groundplane antenna 12/17/30m
Traditional lowcost groundplane antenna. Made of telescopic aluminum tubes which are fixed with stainless steel hose clamps, including solid mast mount. Includes a radial kit of PVC coated copper wire (one radial per band). With more radials the efficiency can be improved further (as with an GP). The vertical distance between the U-brackets is 18cm.

Technical data:
Typ: GP-3 GP-2W GP-3W  
Frequency range: 10/15/20m 12/17m 12/17/30m  
Gain: 0 0 0 dBD
Length: 3.3 3.3 4.7 m
Max. power load: 1000 1000 1000 Watt
Connector: PL-Buchse  
Mast diameter max. 44 44 44 mm
Weight: 1,5 1,7 2 kg
Impedance: 50 50 50 Ω
Order No.
11240 GP-3, 10/15/20m 99.50
11241 GP-2W, 12/17m 99.50
11242 GP-3W, 12/17/30m 110.80
Info freight charges


Download: GP-3 Instructions (PDF, DE/EN, 30KB)

Radial kits

Radialkit 80/40/30m

Radials for vertical antennas. Consist of two λ/4 wires per band. Uses PVC coated braided copper wire 1.5mm2. Includes solder lugs on one end for easy connection to ground post.

These radial kits can be used for elevated antennas (not ground mounted). The radials should be installed so that they do not touch the ground, nor the roof nor any other obstacle. If the vertical antenna should be installed on the ground other radials are required (at least as long as the antenna is high, better longer, as many as possible, not less than 10).

Excellent explanations about antenna radial systems are provided by some manufacturers, for example by SteppIR and Bencher (english text):

Download: Radial Systems for vertical Antennas (by SteppIr) (PDF, EN, 170KB)

Download: Ground Radial Systems (by Bencher) (PDF, EN, 45KB)

Order No.
11270.804030 2x λ/4 for 80/40/30m 64.00
11270.201510 2x λ/4 for 20/15/10m 49.00
11270.1712 2x λ/4 for 17/12m 44.00

Alle prijzen zijn inclusief BTW., maar exclusief verzendkosten.
Tussentijdse prijswijzigingen en typefouten voorbehouden.
Fabrikanten kunnen specificaties en uitvoeringen wijzigen.