Category Archives: Ham Radio

Project Amelia Earhart: work an air mobile station as it travels the world

Here’s an opportunity for both ham radio operators and SWLs to log this special event air mobile station throughout June and July. Based on WB6RQN’s flight path, almost everyone should have an opportunity to put WB6RQN in the logs!

The following excerpt has been copied from the Project Amelia Earhart website:


About Ham Radio on the Spirit

Brian Lloyd has a powerful radio system aboard the Spirit. The radio communicates on High Frequency (HF) shortwave using Single Sideband (SSB), and anyone can tune in to these transmissions who has the proper type of radio receiver. Listen for WB6RQN, that’s Brian’s Ham radio callsign. Ham radio operators around the world are invited to communicate with Brian while he is on the air in international airspace using the Ham bands. HF radio is dependent on ionospheric conditions to be heard over long distances, and it may change rapidly with the space weather or other factors.

Ham Radio Technical Information

Ham Radio Callsign: WB6RQN
Operator Name: Brian
QSL Via: eqsl.cc Electronic QSL system
HF Radio: Mobat model Micom 3, commercial HF transceiver
HF Power: Maximum power 125 Watts, 2-30 MHz
HF Antenna: Tapered Towel Rack type Belly Wire, with Automatic Tuning Unit (ATU)
HF Modes of Operation: SSB Voice or ALE
Ham Callsign Phonetics: Whisky Bravo Six Romeo Quebec November , Listen:

Click here to download.

Schedule of Possible Upcoming HF Radio Operation in 2017

31 May: Texas to Miami
01 June: Depart Miami. Embark on Round-the-World flight
02 June: Caribbean Sea area
03 June: South America area, Atlantic Ocean
05-06 June: South America, Atlantic Ocean, Brazilian Coast
07 June: Atlantic Ocean
08-09 June: Western Africa area
10 June: Eastern Africa area, Red Sea
11 June: Arabian Peninsula, Arabian Sea
12-15 June: South Asia, Bay of Bengal, Indian Ocean
16-18 June: SouthEast Asia, Adaman Sea, Indian Ocean
19-23 June: SouthEast Asia, Gulf of Thailand, Java Sea
24 June: Timor Sea area to Australia area
30 June – 4 July: Australia area, Tasman Sea, to New Zealand
14 July: New Zealand to Fiji, South Pacific Ocean
15 July: Fiji to Howland Island overflight, Pacific Ocean
16 July: Hawaii, Pacific Ocean
17-18 July: Hawaii to California, Pacific Ocean
19-21 July: California area
22-23 July: Western USA to Kansas area
24-28 July: Oshkosh Wisconsin USA for AirVenture
29 July: Oshkosh to Texas

Note: All dates and flight locations are approximate and tentative. Please see the Live Tracking Map for actual locations and flight movements.

Ham Radio Frequencies of Operation for Spirit Flights

HF Frequencies for Ham Radio SSB Voice QSOs and DX: 

  • Ham QSO activity may occur at any time while the airplane is in International airspace, USA, or some other areas.
  • Ham operation may happen while Brian is not busy with flight operations
  • There may be unexpected interruptions during a QSO
  • Please be especially courteous and patient, because his first priority is to pilot the plane.

Simplex or Split? Most of the time, WB6RQN will use simplex, listening and transmitting on the same HF frequency. But, sometimes Brian may ask calling stations to transmit “UP 5” split. When using UP 5 split, your transmit frequency must be exactly 5 kHz above WB6RQN. The plane’s HF radio is channelized, and it does not have an S-meter.

Click here for WB6RQN DX cluster spots.

Brian said, “During the actual flight I can talk on ham radio when I’m not using the HF radio to make position and status reports to Air Traffic Control. I will probably get 10 to 15 minute windows when I will be able to work ham stations on the HF bands occasionally. I have never been a contester, so my QSO rate will probably be lower than most ham operators would like.”

HF Channel Frequencies for Ham Radio ALE Activity: 

  • Activity using common Amateur Radio standard 2G-ALE Automatic Link Establishment may occur on the following scanned channels when Brian is not busy with flight operations.
  • ALE activity may occur at any time while the airplane is in International airspace, USA, or some other areas.
  • Whenever the ALE soundings of WB6RQN are heard, operators are invited to call on any one of these channels using an ALE Individual Call and link with WB6RQN.
  • When linked on an ALE Voice channel, the preferred QSO method is Upper Sideband Voice.
  • If a text is to be sent, use AMD and include the AMD text within the initial Individual Call.
  • Do not expect a wordy text reply, because there is usually no QWERTY keyboard connected to the ALE radio in the cockpit.
  • Anyone copying soundings, calling, or other types of reports is encouraged to post ALE reception logs on the HFLINK.NET website.

SWL and UTE Monitoring of HF Aero Frequencies

For SWLs (Shortwave Listeners) or UTEs (Utility Monitors), it is possible to listen to Spirit on the Air Traffic Control (ATC) HF Aeronautical frequencies with an SSB (Single Sideband) receiver. More information about listening to Spirit on HF Aero, click here.

Tour of the HF Radio System in Spirit  

For more information, click here to view the Project Amelia Earhart website.

Video: EB3DYW’s Homebrewed regenerative receiver

While browsing a videos on YouTube, I stumbled across this demonstration of a brilliant little homebrewed regen receiver by Javier Guillaumet (EB3DYW):

Click here to view on YouTube.

What a beautiful little receiver!

Though I’ve build a number of receiver kits, I’ve never built one from scratch. Someday, I will muster up the courage and do so, though!

If you like home-grow regen receivers, you must check out Dave Richards’s Sproutie II regen receiver as well. A true work of art!

Post readers: Do you have any homebrew projects to share? Please comment!

Buyer Beware: Dan shows us how to spot a scam on eBay

Many thanks to SWLing Post contributor, Dan Robinson, who writes:

This is an example of a classic scam — and these are usually seen involving
Watkins-Johnson 8711/A receivers.

The seller puts a photo of what appears to be a good condition WJ up,
with additional photos. But often these photos are faked or taken from
other ended Ebay auctions.

The description is usually, as with this item, in blue letters noting
the item is available only for immediate sale, and not for auction,
despite the fact that the auction is — an AUCTION and has a
starting price.

I make it my business to reports items like this to eBay and eBay has
a pretty good record of recognizing scams and removes them.

I think it’s important to point out these items to SWLing readers to
help avoid people being ripped off.

No doubt!  Thank you so much for sharing this, Dan. I didn’t realize scams like this were prevalent on eBay.

I’m willing to bet this scammer’s plan is to get you to outside the boundaries of eBay’s protection as soon as possible, luring you with a believable bargain price. This is why they ask for you to message them instead of bidding.

In my opinion, eBay is one of the safest sites for online purchases, but it is certainly not void of scammers. Remember the proverb, “If it sounds too good to be true, it probably is!”

Thanks again, Dan!

2017 Hamvention photos: Inside Exhibits

Saturday was another long day at the 2017 Hamvention, but I did have a moment to visit most of the inside exhibit tables. The following photos were taken (in no particular order) in the main Hamvention buildings at the Greene County Fairgrounds. Again, it was especially fun meeting so many SWLing Post readers and contributors in person!

Click on the photos below to view larger images (click here to view photos of the 2017 Hamvention flea market):

2017 Hamvention photos: Friday Flea Market

We had a rather long day here at the 2017 Hamvention, but we had a fantastic time. It was especially fun meeting so many SWLing Post readers and contributors in person! Thank you for stopping by our booth at 6508.

Below, I’ve posted well over one hundred photos I took at the Hamvention Flea Market this morning. Click on the thumbnail to expand each photo. I’ve tried to include price tags when available! I plan to post inside exhibit photos tomorrow.

2017 Hamvention: setup day photos

We’ve arrived at the 2017 Hamvention–the first year at the new venue at Greene County Fairgrounds in Xenia, Ohio.

By request, I’m posting photos taken today of the new site while exhibitors are setting up.

Since the Greene County Fairgrounds lack the number of indoor exhibitor space, they are using large white event tents to add covered square footage:

I hope we don’t have rain this year as many of the tents have open seams and some holes. Additionally, it’s quite dark inside. Perhaps more lighting will be added.

The flea market area is quite large–some flea market vendors have already set up shop.

Tomorrow, I’ll post photos of both indoor and flea market exhibitors. Stay tuned!

If you’d like to keep up with Hamvention posts, simply follow/bookmark the tag: 2017 Hamvention.

Updated Frequency Bands Chart from the ARRL

Many thanks to SWLing Post contributor, Steve, who notes that the ARRL has updated their downloadable Frequency Band Charts.

I find it interesting that the ARRL also noted the following on their download page:

NOTE: The new 630-meter and 2200-meter bands are not yet available for Amateur Radio use. The effective date of the recent FCC Report & Order granting these allocations has not yet been determined, and until the start date has been set, it is not legal under an Amateur Radio license to transmit on either band. The FCC will publish a notice in The Federal Register “announcing such approval and the relevant effective date.” ARRL will announce the UTC notification procedures and the effective date to use these new bands as soon as these are known.

I’ve received feedback from SWLing Post readers noting a licensed amateur radio operator in Tennessee who had already set up an active beacon on the 630 meter band. He eventually pulled the plug. No doubt, this was why the ARRL posted a special note.

Downloading and printing the charts

Download and print PDF documents using Adobe Reader.