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Multiband Vertical HF Delta loop antenna 10-30MHz v.2017 ALU
Your Price: 247.17 Euro
Quantity:  
Catalog Number VPA-MBD-AL
Availability Available - Up to 20 working days production time
Description
Links
Reviews
Plots and measurments
Multiband vertical delta loop antenna M0PLK based v.2017

Closed loop antennas are always less sensitive to noise than open driven element antennas (e.g. vertical or dipole).  This Multiband Delta Loop antenna, is based on M0PLK design but completely redesigned, has a unique configuration and feed solution resulting in low angle radiation, this making it a great performer on real DX.
  • Performs well on (30)-20-17-15-12-10m.
  • Usable on lower and higher bands with reduced performance.
  • Low radiation angle due to novel top-feed system using low loss ladder line.
  • Based on the SP3PL Multibander 7PL antenna.
  • Bi-directional and very low noise in comparison to a vertical.
  • Design is non-resonant so an ATU is required.
  • Comes complete with ladder line, main loop wire, aluminium telescopic rods, matching transformer. No guying system and assembly instruction (very simple and partly pre-assembled) is included.
This is redesigned version and called v.2017...
  • New wideband balun can handle 300W continous. Also avaliable 1kW version.
  • High quality SO-239 socket with goldened center pin and teflon as insulator.
  • Balun inside new black ABS/PC box. UV resistant.
  • Specialy designed dedicated center insluator and ladder insulators (now much wider ladder for better match) made from black ABS/PC - Crash and UV resistant.
  • Very solid poliamid clamps for mounting antenna arms.
  • Wire elements made from DX-Wire wires. Ladder DX-Wire type F. Upper wire DX-Wire HDL. Wires with PE cover. UV resistant.
  • Antenna base made by CNC machine.
  • Some small improovements.
  • Look at the images above for more details!
 Technical information
M0PLK based Multiband Delta
 Frequency coverage
10* - 30 MHz
 Gain
3.5 - 9.0 dBi depending on band
 Elevation angle (10m above ground)
38 - 11 deg. depending on band
 Max. input power (continous)
300W (opt. 1kW)
 SWR 1.5-3.5:1 needs ATU
 Antenna height
500 cm
 Antenna widht
550 cm
 Antenna connector
SO-239
 Weight
5kg
 Elements diameter
Tapered 25x2-20x1.5-16x1.5mm
 Used wires
DX-Wire type F and HDL
 Used material aluminium / stainless steel
 Mast mount
Double - dia. 25-50mm

To see antenna plots look above PLOTS AND MEASURMENTS tab.

When assembled, the antenna is ready to work and does not require additional tuning.


No drilling, no cutting - just assemby and enjoy antenna.

Current Reviews: 5 Write Review
by Fred Date Added: Tuesday 17 January, 2017
I use this antenna now half a year. It's a great antenna, he works from 10-50 MHz!

Rating: 5 of 5 Stars! [5 of 5 Stars!]
by KEN: Date Added: Tuesday 28 July, 2015
This antenna is well made. I have one at 10mts AGL and it works very well. Lots of DX worked and it ..

Rating: 5 of 5 Stars! [5 of 5 Stars!]
by Christian Date Added: Sunday 05 April, 2015
M0PLK antenna installed on 21.8.2014 to 11m high. Works very well. 100 DXCC countries confirmed LoTW..

Rating: 5 of 5 Stars! [5 of 5 Stars!]
by F4DFR Date Added: Thursday 06 June, 2013
Very well made antenna, with great performances from 10m to 30m bands. Easy to assemble. My M0PL..

Rating: 5 of 5 Stars! [5 of 5 Stars!]
by OLIVIER Date Added: Sunday 05 August, 2012
Good antenna for dx, assembly is simple. Now i can use all the band 40 to 10m.

Rating: 5 of 5 Stars! [5 of 5 Stars!]
Below are presented antenna plots at 10m high (e.g. on our 11.3m telescopic mast) over medium conductivity ground made in EZNEC5+ modeling software.

EZNEC5+ model


Fig.1. 30m band. Main lobe at 38 deg. and gain 3.53 dBi.


Fig. 2. 20m band. Main lobe at 23 deg. and gain 6.08 dBi.


Fig. 3. 17m band. Main lobe at 17 deg. and gain 6.83 dBi.


Fig. 4. 15m band. Main lobe at 15 deg. and gain 7.53 dBi.


Fig. 5. 12m band. Main lobe at 13 deg. and 8.71 dBi.


Fig. 6. 10m band. Main lobe at 11 deg. and gain 9.01 dBi.
 
This product was added to our catalog on Thursday 15 September, 2011.
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