“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
ES-4 Radio / Antenna Selector Switch between 3 radios and 5 antennas
ES-4 COMES AS A CONTROL UNIT AND A BASE (SWITCHING) UNIT THE BASE UNIT RECEIVES 12V POWER AND HAS ALL THE HEAVY COAXIAL CABLES CONNECTED TO IT. THER... Read more
Alpha 4040 DreamTuner
“In the last 45 days, we’ve made a lot of progress on the Alpha 4040 DreamTuner. As you know, when we tested the tuner under full... Read more
DRM Monitoring Receiver RF-SE
RF-SE is a professional DRM30/AM/SSB monitoring and measurement receiver, which is available in different models depending on the desired application.... Read more
Tadiran SDR-7200HH
The Tadiran SDR-7200HH is specifically designed for dismounted soldiers, providing them with voice and data communications together with command and c... Read more
ACOM A2100 HF + 6M Linear Amplifier
ACOM A2100 Easy to operate The TRI is a powerful tuning aid that, together with the automatically controlled input attenuator, helps the operator to... Read more
Stryker SR-94 HPC – “Coming Soon”
Stryker SR-94 HPC FULL Featured Radio! 45+ Watts PEP AM / FM 10 & 12 Meters PC Programmable CTCSS / Rep Offsets MIC / RF Gain Controls RF Power Hi... Read more
Six Way Switch Box -bhi 1024
Don’t keep disconnecting cables…get a switch box! Need to Connect more than one piece of equipment to your bhi Noise Eliminating Speaker o... Read more
Hambuilder All Band Trx Full set (RTC03+BritX+HBRF01+20WPA) fully assembled
Hambuilder HBR8HF HF transceiver full set board and parts This is an assembled and tested board set for build fully operated HF All band transceiver c... Read more
ALPIN 200 – LINEAR AMPLIFIER HF 2KW
ALPIN 200 Linear Amplifier Available from January 2015! Specifications coverage Frequency : All the bands radio amateur 1.8-29,7 MHz Output Po... Read more
![MB1 SDR HF/6M/VHF Transceiver, Expert Electronics [ Hamvention ]](https://qrznow.com/wp-content/uploads/2019/05/SUN-SDR2-190x122.jpg)
