QCARC Calendar

August 2012
S M T W T F S
 1234
567891011
12131415161718
19202122232425
262728293031 
September 2012
S M T W T F S
 1
2345678
9101112131415
16171819202122
23242526272829
30EC

Polls

What bands do you use?

View Results

Loading ... Loading ...

Local APRS

QC Weather

Clear
Thursday 05/24/2018 0%
Clear
Sunny skies. High 82F. Winds light and variable.
Partly Cloudy
Friday 05/25/2018 0%
Partly Cloudy
Sunshine and clouds mixed. High 84F. Winds WSW at 5 to 10 mph.
Partly Cloudy
Saturday 05/26/2018 20%
Partly Cloudy
Cloudy early with partial sunshine expected late. A stray shower or thunderstorm is possible. High 84F. Winds WSW at 5 to 10 mph.
Quad-County Weather Page

Latest News

Paul Silinsky K3PS - Silent Key

It is with deep sadness we report the passing of Paul Silinsky K3PS. Dr. Paul Stephen Silinsky K3PS of Ashland, Ohio, formerly of DuBois Pennsylvania, died following a brief illness on Saturday, May 5, 2018. He was Lecturer at The Ohio State University -- Agricultural Technical Institute in Wooster, Ohio, and ...

Read More

Public Service Event 2018 Brookville YMCA Adventure Race June 2, 2018

Public Service Event 2018 Brookville YMCA Adventure Race June 2, 2018

he Brookville YMCA Adventure race is set for June 2, 2018. Chuck Shaffer, KC3EAJ has requested amateurs to provide public service communications for this race. His main focus is the orienteering course between Millcreek & Frozen Toe. The actual race covers eighty four miles and there are opportunities for as many ham operators to ...

Read More

ICOM 706 MkII for sale

Selling my ICOM 706 MkII It comes with separation cable, face mounting bracket, and original mike. Everything works as supposed, very good radio, but, time for something new.... Comes from smoke free enviroment. I will not ship! Price $ 475.00   Email: kvantlars@gmail.com  

Read More

Meteorological Spring Has Arrived

The National Weather Service, Spring Safety Campaign is in effect. There are many aspects of Spring weather that can ruin a good day and we have to be aware of such adverse weather. Being aware and recognizing is only part of the equation, we have to follow the advise to ...

Read More

Another Recent NWS Addition

I briefly looked at this site before but today I decided to spend a little more time looking. It was worth the time! I found the GOES-East GEOColor screens, they are really interesting and the resolution is quite good. Be sure to click on the GeoColor Loop, located in the ...

Read More

Expanded National Weather Service Information Web-Page

Expanded National Weather Service Information Web-Page

  The National weather Service has expanded some experimental winter weather informational pages. I believe that you will find these pages interesting and informative. They may assist you in planning for upcoming winter weather events in you locale. Be sure to scroll down the page and also check out the four ...

Read More

NOTA Special Event

Here is another On The Air Special Event that you can get your HF as well as 2 meter and 70 cm rigs warmed up for. The National Aeronautics and Space Administration (NASA) is beginning their year long NASA On The Air Special Event beginning December 11, 2017 and will ...

Read More

SKYWARN RECOGNITION DAY OPERATING EVENT

SKYWARN RECOGNITION DAY OPERATING EVENT

This year the official date for the SkyWarn™ Recognition Day event is December 2. The event will be in operation from 0000 UTC – 2400 UTC, December 2, 2017. This is a rather simple event, the purpose is to contact as many National Weather Service stations as possible on 80 ...

Read More

2018 Dues Are Due!

2018 Dues Are Due!

The 2018 membership dues for the Quad County Amateur Radio Club are due. Please note the updated dues structure.   A  .pdf can be downloaded using the following link: 2018 QCARC Membership Application Please make checks payable to: Quad County Amateur Radio Club. You can print the completed application, mail it to Quad County ...

Read More

National Weather Service Hazard Simplification Initiative

The National Weather Service is simplifying their hazardous weather products list. Please click on the below link for what they are doing for winter effective October 1, 2017. Looks like they are narrowing down to three categories. http://www.weather.gov/media/iln/HazSimp.pdf

Read More

Autumn SkyWarn Newsletter Available

Autumn SkyWarn Newsletter Available

The 2017 Autumn SkyWarn newsletter is available on-line at: https://www.weather.gov/media/ctp/Spotter%20Newsletters/Autumn2017.pdf    

Read More

Amateur Radio License Exam Session

Amateur Radio License Exam Session

EXAM SESSION 09/29/2017 ALL CLASSES OF LICENSE EXAMS WILL BE OFFERED. Sponsor: Quad County ARC Date: Sep 29 2017 Time: 6:00 PM (Walk-ins allowed) Contact: Joe Shupienis (814) 371-3235 Email: w3bc@arrl.net VEC: ARRL/VEC Location: Penn State Dubois Smeal Building Du Bois, PA  15801

Read More

2017 Jamboree On The Air

2017 Jamboree On The Air

This year the QCARC will activating a station from the Hallstrom Building located at the Camp Mountain Run Scout Camp. The station, N3QC, will be operating on HF bands, considering propagation characteristics to a given part of the World that we intend to communicate with. VHF & UHF frequencies may be activated ...

Read More

W3CDG-11 Balloon Launch In The Air From Pittsburgh

The W3CDG-11 balloon launch is in the air. To watch the progress go to: aprs.fi for the current info. Launch was from the Pgh. Zoo.     The Balloon has landed in the Brackenridge. PA area. Congratulations to those affiliated with the successful flight!

Read More

High Altitude Balloons Pass Nearby

High Altitude Balloons Pass Nearby

          Two high altitude balloons with APRS telemetry reporting transmitters passed just west of DuBois on September 13. These balloons were reporting altitudes of just over 45,000' and temperatures around 12 degrees F. I happened to capture a screen shot one of the balloons as it was posted online, via the WA3UFN-1, ...

Read More

QCARC Events

  • No events.

Antenna Shootout, UHF Edition

We’re at it again! Before the August 17 meeting, we invaded the large parking lot we use as an antenna test range once again. This time, we brought UHF antennas, and found that despite their smaller size, they were all very efficient. Don KB3LES brought his double diamond array, which may be small, but packed a big punch! Lars KB3WBT ran his Quagi through its paces, and Joe W3BC made reference measurements of his Rover Yagi.

The antennas all performed so well it was too close to call. Don’s antenna had high gain, and it was in almost all directions, Lars’ quagi had deeper side nulls, but was still “lobey” off the back. Joe’s Rover antenna had plenty of forward gain, but when as little as 15 degrees off the target, the signals went away and stayed away.

Don’s antenna had the smallest turning radius, and its wide beamwidth and high gain is perfect for net and repeater operations. It would be particularly well-suited to talking to mobiles, since its wide-pattern coverage would blanket an area better than any other antenna we tested. Plus it was the most unique looking of the bunch! Lars’ quagi was very lightweight being made of PVC pipe, and was easily portable. It would make a great antenna for working distant repeaters. Joe’s Rover antenna was showing the effects of bouncing down hundreds of miles of back roads on countless contest roving missions. A couple of the elements were loose, and could be heard and seen on the receiver as they flopped around in the breeze. It certainly meets its design requirement of hearing only what it’s pointed at, and rejecting strong contest QRM from off the sides and back. Mechanically though, it needs some maintenance before it falls apart, and perhaps a sturdier redesign to keep the elements where they belong.

The exercise could be called a “quest for truth” and there were many truths revealed, even by the simplistic testing methodology we used. Given more time, and more attention to little details, some very accurate results could be obtained, but in our assembly-line session, we learned a lot, and got a good idea of the performance of each antenna under test. We will add these techniques to our inventory, and we’ll certainly be doing more antenna testing in the future.

After we ran out of UHF antennas, we switched the remote transmitter to VHF, and tested Lars’ latest creation—a 5 element two meter antenna that uses metal arrow shafts for elements. It is a clean-looking antenna, and initial test results showed it to have good gain and a very smooth pattern. After twirling it around the compass and recording received signal strengths, we gave it a real test—we dialed up a distant beacon and pointed the antenna its way.

Sure enough we heard a carrier, and then the CW id of WA1ZMS on 144.285 MHz, located on a 4200 foot mountaintop in Virginia, some 253 miles to the south!

The net result was that all the antennas were winners! Every one of them had plenty of gain to pick up the weakest signals, while the off-axis signal sensitivity or rejection differed, making each antenna suitable for a different purpose. That diversity is what makes Amateur Radio so much fun, and gives us choices to meet our operating needs.

Not to mention that everyone there had a lot of fun!

       

Share

1 comment to Antenna Shootout, UHF Edition

  • Lars

    This would be my all time favorite! To build an antenna, that you might have an idea will work in a certain way, and it really does! If you then add a couple of your own tweeks, to see if it got better, takes a week signal in the distant, so a beacon is a really big help!
    I certainly will try to make that happen in our area too!
    Lars

Leave a Reply

You can use these HTML tags

<a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>