“After several attempts to build a multiband C-Pole I finally ended up with the Multiband H-Pole. C-Poles for different frequencies on one pole must be fed with separate feedlines over separate current baluns.
In a first attempt I fed the H-pole in the center with a ladder line. It was electrically no longer an “off-center-fed-dipole” as the C-Pole was, but a vertical, folded “doublet”.
The C-Pole is a resonant antenna, whereas the H-Pole is non resonant and must be matched with a tuner.
Construction and materials used for the H-Pole are similar to the C-Pole. I use non conductive glass fibre fishing rods, beware of conductive carbon fibre!
The first results are very promising. I had contacts with excellent signal reports within a few minutes on all bands except 80m at @ 12:00 UTC in July 2008.
I used the SG-239 Automatic Tuner (asymmetric !). So far, the sound of the automatic tuner, was “healthy”, only a few “clicks” and down was the SWR! I connected the lower half of the H-Pole to the ground connector, the upper half to the “hot” side of the tuner output.”
Elevation Diagrams H-Pole [black] Versus C-Pole [blue], 0.5m over MININEC-Ground, 20m-Band
The Azimut Diagrams for both antennas are omnidirectional
See EZNEC-File: multi-h-pole-tl.ez
See more: http://www.qsl.net/hb9mtn/hb9mtn_h-pole.html
Equipment
Palstar SP30H
The Palstar SP30H ultimate communications speaker is a custom engineered speaker designed to match the sonic characteristics of the human voice. The... Read more
ANAN-200D HF + 6M 100W ALL MODE SDR TRANSCEIVER
SDR TRANSCEIVER The ANAN-200D is The most powerful Amateur Radio Transceiver available today, it builds on the very successful OpenHPSDR Hermes and t... Read more
The Foxx-3 Transceiver – 80m, 60m, 40m, 30m, 20m versions available
Connections are as follows: antenna via 50 ohm BNC, power via 2 pin 0.1″ header, headphones via 3.5mm mono or stereo jack plug or 2 pin h... Read more
![AMPTEC LA4000 HF Power Amplifier – 4000 W [ VIDEO ]](https://qrznow.com/wp-content/uploads/2016/10/s-l1600-6-190x122.jpg)
AMPTEC LA4000 HF Power Amplifier – 4000 W [ VIDEO ]
AMPTEC LA4000 HF Power Amplifier , designed for use on all short wave amateur bands from 1.8 to 29.7 MHz , including WARC bands and all modes. It is e... Read more
DX Engineering UT-KIT4 Complete Coax Cable Tool Kits DXE-UT-KIT4
DX Engineering DXE-UT-KIT4 Complete Coax Cable Tool Kits are cost-saving tool kits contained in a handsome, convenient carrying case. They are designe... Read more
QRP Ranger
An innovative portable energy system, optimized for mobile radio in the field. How do you define ‘state-of-the-art’ in mobile radio power? QRP RANGER... Read more
KX3 Low-rider Radio Stand
Product Description KX3 Low-rider Radio Stand This lovely stand has been designed for KX3 owners who don’t have the Elecraft paddle and want a l... Read more
![YAESU Catalog – HF & V/UHF [ Download ]](https://qrznow.com/wp-content/uploads/2014/11/yaesu_catalog-190x122.jpg)
YAESU Catalog – HF & V/UHF [ Download ]
YAESU Catalog Alternative Link Read more
PowerMaster II Station Monitor, VSWR & RF Power Meters
The PowerMaster II from the Labs of Array Solutions A Wattmeter that is Outstanding in Functionality with NIST Traceable Accuracy Some... Read more
