Tag Archives: WD8RIF

Space Weather Woman: Check out Dr. Tamitha Skov’s forecasts

Many thanks to SWLing Post contributor, Eric McFadden (WD8RIF), who recently shared one of Tamitha Skov’s space weather forecast videos.

Over the past few years, I’ve watched Dr. Skov’s weekly video forecasts to better understand the implications of incoming CMEs, solar winds, sun spots (or lack thereof) and geomagnetic storms. While her videos include a lot of technical details, they’re also much easier to understand than the typical propagation forecast. Plus, her videos they’re chock-full of solar imagery and animations.

This weekend, for example, we’re going to experience some disruptions to HF propagation. Yesterday, solar wind speed soared to 704–and at time of publishing this post it’s 721 km/sec (thanks for noting, Mike!).

Dr. Skov explains it all in her latest space weather video:

Click here to view on YouTube.

Click here to view and subscribe to Tamitha Skov’s YouTube channel, and click here to check out her website.

Eric seeks advice: Building a directional mediumwave antenna for the RSP2 SDR

Many thanks to SWLing Post contributor, Eric McFadden (WD8RIF), who writes with the following question:

A request for assistance.

After comparing the reception of the RSP2 and 1/2 doublet to the reception of the County Comm GP-5 SSB and its little external ferrite-bar, I’ve decided I probably want to make some sort of directional antenna to use on AMBC with the RSP2. A wire loop, perhaps, or some sort of ferrite-bar thing, that connects to the RSP2’s Hi-Z input.

[Perhaps SWLing Post readers can suggest] options and then I can get the needed bits at the 2017 Hamvention.

Post readers: if you can offer Eric suggestions, or point him to antenna plans, please comment! I do believe he would rather build an antenna than simply buy one and he’s looking to permanently mount this antenna outdoors.

Eric spots a Drake SPR-4 shortwave receiver on eBay

Many thanks to SWLing Post contributor, Eric McFadden (WD8RIF), who is quite a Drake fan and recently spotted this SPR-4 on eBay.

The seller has it listed as an auction currently at $400, but with a BuyItNow price of $600 US. That’s a fairly steep price considering Universal Radio has sold them in the past for +/- $400. Of course, the last one in Universal’s sold index was posted in 2011.

I’ve never owned a Drake receiver, but I’ve certainly used them and have been impressed with their performance and audio fidelity. SPF-4 reviews on eHam are certainly positive.

Image source: Universal Radio

I know this: I love the blue backlit dials on this particular Drake line! Gorgeous!

Click here to view on eBay.

Video: J R R Tolkien on Wireless

RCA-Portable-DialMany thanks to SWLing Post contributor Eric (WD8RIF), who shares this (quirky!) animated video set to a British Library Sound Archive of “Wireless” by J R R Tolkien.

This animation was produced by students at the University of the Arts London:

Click here to view on YouTube.

One week of Hamvention, Air Force Museum, Wright Brothers and National Parks On The Air

DSC_4449I returned home last night from my week-log Dayton Hamvention trip around 8:30 PM.

The Hamvention actually ended at 1:00 PM on Sunday, May 22, but my buddy Eric McFadden (WD8RIF), his son Miles (KD8KNC) and I stayed Sunday night in Dayton, and Monday night at Eric’s home in Athens, Ohio.

After packing up our Hamvention booth (for Ears To Our World) on Sunday, we made our way to the nearby National Museum of the USAF–the largest aviation museum in the world. We visit the museum every year–and every year I discover something new.

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This BC-348 can be found in one of the museum’s B-29 displays.

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In June, the Air Force museum is actually opening a fourth building which will house an additional 70 aircraft in four new galleries.

If you’re an aviation buff–trust me–the  National Museum of the USAF is worth a pilgrimage to Dayton, Ohio.

NPOTA activations

Monday morning, Eric, Miles and I packed up, ran a few errands on Wright Patterson Air Force Base, then made our way to our first National Parks On The Air activation: the Dayton Aviation Heritage National Historical Park (HP11) and North Country National Scenic Trail (TR04) “two-fer” at Huffman Prairie Flying Field Interpretive Center in Dayton, Ohio.

Eric worked CW on 20 meters and I worked SSB on 40 meters using the LNR Precision LD-11 transceiver (which I’m currently reviewing) and my recently-purchased Hardened Power Systems QRP Ranger.

For all of my Monday NPOTA activations, I used the EFT Trail Friendly antenna I purchased at the Hamvention:

EFT-Trail-Friendly-Antenna-QRP

The EFT Trail Friendly Antenna made set-up a breeze: simply throw a line into a tree, hang the end of the antenna, then hook up the other end to the feedline/transceiver. No antenna tuner is needed for 40, 20 or 10 meters once the antenna is tuned for resonance. It packs up into a small bundle that easily fits in my radio go-kit (see photo above).

The LD-11/QRP Ranger/EFT antenna combo worked amazingly well and made for very quick deployment.

LNR-LD-11 and QRP Ranger NPOTA

I can easily fit the LD-11 transceiver and QRP Ranger on a foldable metal chair (my make-shift field table!).

My buddy Eric, I should mention, is typically on the leaderboard for NPOTA as he’s an avid QRP field operator.

WD8RIF-20M-Vertical-NPOTA

Eric (WD8RIF) operating NPOTA with his field-portable vertical HF antenna.

You can follow Eric’s activations on QRZ.com or his website.

Eric's field-portable HF vertical packs up into this small canvas bag.

Eric’s field-portable HF vertical packs up into this small canvas bag.

We had a tight NPOTA activation schedule to meet Monday, but after packing up from our first sites, we took 30 minutes to stop by the Wright-Dunbar Interpretive Center and The Wright Cycle Co. museum in downtown Dayton.

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Well worth the short visit! Next year, I’ll plan to revisit both museums when I have more time.

Next, we made our way to the second scheduled NPOTA activation site: the Charles Young Buffalo Soldiers National Monument (MN18).

NPOTA-QRP-LD-11-QRP-Ranger

Despite not having my antenna very far off the ground (my antenna line fell down one branch in the process of hanging) I still managed to work a pile-up of stations from Georgia, North Carolina, Ohio, Illinois, Connecticut, Michigan and Indiana. After Eric and I racked up a number of QSOs, we packed up our site in haste and made our way to the final activation of the day: the Hopewell Culture National Historical Park (HP15). We arrived as the Park Ranger was getting in his car to leave for the day!

At Hopewell, I managed to deploy the EFT antenna much higher off the ground. I worked a small pile up of stations from all over the region which, to my surprise, included two radio friends (Ed and Eileen) in Franklin, NC. Eric also worked blogging buddy John Harper, AE5X on 20 meters CW (got your message, John!).

NPOTA-QRP-LD-11-QRP-Ranger-Hopewell

All in all, it was a fantastic day to be outdoors and on the air.

Of course, a side benefit of doing National Parks On The Air activations is that you get to check out all of these amazing park sites.

Without a doubt, this was one fun-filled and radio-centric Hamvention week! It couldn’t have been better.

NPOTA Log

Part of my log sheet for NPOTA HP11 and TRO4 “Two-Fer” activations. Not bad for such a tight schedule!

Thank you

Many thanks to my friends Eric (WD8RIF), Miles (KD8KNC), Mike (K8RAT) and Christine (KM4PDS) for volunteering to manage our Hamvention booth for Ears To Our World. It was a record year for collecting donations. Many thanks to all of you for the support!

I’d also like to thank the SWLing Post readers who stopped by to visit our new location in the Silver Arena–it was great seeing everyone!

Now that I’m back home, I essentially have one week of emails and comments in my backlog to sort before hitting the road again rather soon. I appreciate your patience as I catch up. If you don’t hear back from me soon, it’s okay to give me a nudge! 🙂