New 2M/70CM Base Base Antenna

After 12 years of service in severe Icelandic weather conditions, it is time to replace my existing dual band VHF/UHF base antenna.  After careful consideration I decided on the new Diamond X-50N dual band antenna.  The antenna has earned outstanding reviews by radio operators world wide.  I appreciate the “N” connector option, the stainless steel hardware and high gain.   The antenna will be fed by a low loss LMR-400 coax cable with a Mouser Electronics professional clamp (non crimp) N-connector.  I am expecting excellent results upon completing the installation.

Special Features:
• Fiberglass radomes
• Overlapping outer shells for added strength
• Strong waterproof joint couplings
• Stainless steel hardware
• Wide band performance
• Factory adjusted – no tuning required
• High wind rating
• DC grounded
 
Specifications:
 
Band: 2m/70cm
Gain (dB): 4.5/7.2
Max Power Rating: 200
Wind Rating: 135 MPH (no ice)
Height (feet): 5.6
Connector: Type-N
Element Phasing: 3-1/4l, 3-5/8l

Causes of static electricity

“Materials are made of atoms that are normally electrically neutral because they contain equal numbers of positive charges (protons in their nuclei) and negative charges (electrons in “shells” surrounding the nucleus). The phenomenon of static electricity requires a separation of positive and negative charges. When two materials are in contact, electrons may move from one material to the other, which leaves an excess of positive charge on one material, and an equal negative charge on the other. When the materials are separated they retain this charge imbalance.”  For further information on static electricity follow this link.

 

Metal pop filter for the Heil PR40

For those engaged in quality audio a good pop filter is a must.  I recently acquired a professional made metal pop filter requiring much less space compared to my previous one.  It fits the PR40 like a glove and works as it should.

 

Rare DX stations recorded in TF land

Rare QSOs recorded on 20m:  Tahiti, India, Philippine islands, Australia and Japan.

HF antennas and the Icelandic winter.

This power pole split like a toothpick during a February 2012 storm.

The weather in Iceland can be notoriously variable.  Average wind speeds in the lowlands may reach from 18 m/s (40 mph) on 10-20 days per year but upwards of 50 days per year at places in the highlands.  However, wind speeds may reach a much higher number during severe weather conditions or up to 70.60 m/s (over 160 mph).

 

 

 

 

 

This Hex beam antenna never stood a change against the forces of a recent Icelandic February 2017  winter storm.                                                               

This Hex beam never stood a change against the forces of a recent February 2017 winter storm. 

 

 

 

 

 

 

 

 

 

Rugged fiberglass whip element and stainless steel mounting for harsh marine environment. Frequency 2 to 30 MHz.  ATU: RF power 1.5 kilowatt P.E.P., 1.0 kilowatt average, continuous duty.

With this in mind, choosing the right durable HF antenna in a city environment is a must.  Here is a recommend set-up consisting of a 43 foot marine antenna with a 1.5 KW antenna tuner.  Yes, it is a compromise antenna with its pros and cons but when it comes to strength and endurance it will outperform any mass produced amateur radio antennas.   The antenna counterpoise is achieved by  a terminal to the roof metal sheets, the most common roofing material used in Iceland. 

 

 

 

 

 

LZAV-5B Five Band Vertical

Another desirable option is a non-compromise antenna resonating as a ¼ wave on 5 bands (20-10m).  This antenna, the LZAV-5B, made in Bulgaria in high grade aluminum with stainless steel hardware without any traps or delicate electronic components sensitive against long lasting wind vibrations, snow, ice, rain, humidity or other environmental elements.   Radials are not necessary if the antenna is mounted on a large metal surface (roof).  With proper guying, this antenna should last for a long period and requires minimum maintenance work.  See the manufacture website.

 

 

 

 

Ciro Mazzoni Magnetic HF Loop Antenna.

Last but not least is the Ciro Mazzoni Magnetic HF Loop Antenna.  An ideal antenna for limited space and made to withstand inclement weather.  See this link for further info.