All posts by Fred Kemmerer

I enjoy station building, contesting and helping new folks to join and have fun with our hobby.
Education and Training, Featured, General, Newsletter, Space, Youth Activities

High Altitude Balloon 4 Launch Windows Set

We have set the initial set of launch windows for our High Altitude Balloon’s 4th flight (HAB-4) for the following three weekends in April:

  • Saturday, April 6th / Sunday, April 7th
  • Saturday, April 13th / Sunday, April 14th
  • Saturday, April 20th
  • Saturday, June 1st / Sunday, June 2nd
  • Saturday, June 8th/Sunday, June 9th

Students at Hudson Memorial School and Bishop-Guertin HS are both participating in our HAB-4 STEM program.

HAB-2 Launch Site in Winchester NH
HAB Launch Site in Winchester NH

We will again be launching from the Elementary School in Winchester, NH at around 10:30 am. Preparation for our launch will begin at 8:30 am.

Our HAB carries video cameras that allow us to see what the HAB sees as it travels through the atmosphere. You can click on the video above to see what a HAB flight is like including video taken at over 90,000 ft above sea level!

HAB Camera Insulation and Heating System

High Altitude Balloon 4 (HAB-4) will be the first to launch with our new camera insulating and heating system. This arrangement is intended to keep the cameras from freezing and shutting off early. The cameras will also carry the smaller, lighter weight batteries that we used on HAB-1. Together, we hope these improvements will allow us to capture video throughout HAB-4’s ascent, balloon burst, descent, and landing.

High Altitude Balloon 4 Flight Parameters
HAB-4 Flight Parameters

The graphic above shows the final flight parameters for HAB-4. We are expecting HAB-4 to burst at around 110,000 ft a.s.l. with the flight lasting about 2 1/2 hours.

HAB Flight Path Prediction - Saturday April 6th
HAB Flight Path Prediction – Saturday, April 6th
HAB Flight Path Prediction - Sunday April 7th
HAB Flight Path Prediction – Sunday, April 7th

The images above show the initial flight path predictions for the first  HAB-4 launch window. The weather and Jetstream forecasts are still fairly unreliable at this point (6 – 7 days in advance of the first launch windows). These will likely change quite a bit between now and this coming Thursday evening when we will make a final go/no-go launch decision for the April 6th / April 7th launch window. We will also be looking closely at the Ground Weather for acceptable ground wind speed under 15 mph at launch and either clear skies or limited cloud cover to permit HAB-4 to be launched.

HAB Flight Platform
HAB Flight Platform

The HAB will again be carrying a flight computer and APRS telemetry and tracking system. You will be able to track HAB-4 during its flight via aprs.fi. You can learn more about how to track our HABs here.

Stay tuned to our Forums for additional updates and the final go/no-go decision as the week progresses. If the first launch window does not work out, we’ll begin counting down to the second window (April 13th / April 14th). We hope that you’ll join us in Winchester, NH for our launch!

Fred, AB1OC

Digital, DX, Featured, General, Newsletter, On The Air

DXing and Operating Award Tips

We’ve been pretty active in DX Operating Award programs since we built our station a few years back. Operating Awards provide incentives to get on the air and chase all kinds of contacts and they also help us to understand our station’s and our personal operating strengths and weakness. They also provide motivation to improve the latter.

Yesterday was a banner day for me in terms of completing Operating Award goals. I was able to make the needed contacts to complete two that I’ve been working on for quite some time:

  • Worked All Japan – Requires working and confirming all 47 Prefectures (similar to US states) in Japan
  • Top Band DXCC – Working and confirming 100 DXCC Entities (basically countries) on 160m

Both of these goals were completed using the FT8 digital mode for the remaining handful of contacts. I wanted to take a little time and share some of the techniques that have worked for me in hopes that it might help our readers have more fun and meet their operating goals on the air.

Here are some general techniques and tips for working DX (in no particular order) … You can read the entire article via the link which follows.

Source: Our HAM Station – DX’ing and Operating Award Tips

Fred, AB1OC

Featured, General, Newsletter, Space

Out of This World Auction Sponsored by ARISS

Washington DC (SPX) Mar 07, 2019 – The ARISS-US team (Amateur Radio on the International Space Station) will auction two very unusual items in its first-ever auction! Picture yourself as the winning bidder and proud owner of a unique JVC Kenwood TS-890S signed by astronauts! Or, you could be top bidder on a special astronaut-signed 6-volume boxed set 2019 ARRL Handbook!

Source: Out of This World Auction Sponsored by ARISS

Can you learn more about the ARISS Auction on the ARISS website and via the link above.

Fred, AB1OC

Radio Amateurs Developing Skills Worldwide