Category Archives: Ham Radio

Going to the Dayton Hamvention? Stop by our booth!

Dayton Hamvention logo_2For the third year in a row at the Dayton Hamvention, fellow volunteers and I will be representing the charity Ears To Our World (ETOW).

This year, we will be in booth 411 in the Ball Arena (BA0411). Stop by and introduce yourself! Here’s a map.

Look forward to meeting you there!

-Thomas (K4SWL)

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Looking forward to the 2014 Dayton Hamvention and FDIM

Each year, I attend the Dayton Hamvention and much of the QRP conference, Four Days in May.  This year, I’ll be working our Ears To Our World table again, along with other volunteers, at booth 411 in the Ball Arena (BA411). Please stop by and introduce yourself!

What I love about the Hamvention (besides the massive outdoor flea market) is that it is a one-stop-shop for innovations appearing in our radio world.

Here are a few of the companies I’ll be following at the Hamvention this year:

Ten-Tec

Ten-Tec-AlphaTen-Tec announced yesterday that it will merge with Alpha Amplifiers under the flag of RF Concepts. I plan to stop by Ten-Tec’s booth Friday and learn more about the merger. Personally, I believe the merger with Alpha Amplifiers is a good move. Both of these companies are known for great customer service and quality US-based design and manufacturing.

I know Ten-Tec is introducing a new open-source product to their line, the Patriot, because I’ve been beta testing one (check QRPer.com for details later this week).

Icom

Icom-ID-5100Icom will showcase their new ID-5100 D-star, dual band, mobile with built-in GPS. While I’m more of an HF guy, this radio does intrigue me. You see, for almost one year now, I’ve been very pleased with my Icom ID-51A, dual-band, D-Star handie talkie (HT).

I find D-Star to be a very flexible digital mode and I’m amazed with how many interesting mom-and-pop companies have produced products for the D-Star mode. I’m surprised neither Yaesu nor Kenwood has adopted the D-Star standard (it’s not proprietary to Icom–indeed, read about the CS7000 below).

The new ID-5100 is a mobile version of my ID-51a. What I love about this radio is that it can store repeater frequencies and dynamically load them based on your geographic location. Perhaps my largest gripe with mobile VHF/UHF rigs is their inability to adapt to the repeater “landscape” when you travel. The ID-5100 may change this and push other manufacturers in the same direction.

Connect Systems

CS700_WEBIn less than a year, Connect Systems has become a household name among ham radio enthusiasts who love VHF/UHF and digital modes.

This Connect Systems is developing an HT–the CS7000–which will be the first non-Icom radio to have the D-Star digital mode. Whatsmore, in addition to D-Star, the CS7000 will also pack DMR.

I don’t think Connect Systems will have a working prototype at the Hamvention (I could be wrong), but there is a possibility that they will be taking early orders.

Elad

FDM-DUO-openingI’ve been intrigued by the Elad line of Software Defined Recievers. This year, they will attend the Dayton Hamvention. I look forward to checking out the new FDM-DUO tabletop SDR. I plan to review some of the Elad product line in the near future.

Palstar

Last year, Palstar showcased a prototype QRP transceiver with touch screen interface. To my knowledge, this would be Palstar’s first transceiver (though they’re well known for antenna tuners and their shortwave radio receiver, the R30A).

Last year, I was told that the new Palstar transceiver would be available this year and would retail between $1,600 – 2,000 US (a rather steep price for a transceiver with 20 watts output). One of the transceiver’s designers assured me that the receiver would “be worth the price.”

Bonito

antennajet_front_hamradio2013I’ll stop by Bonito’s booth to check out their new AntennaJet ASM300.  I’m curious how it works and what the Hamvention price will be.

Though pricing is a little steep, I might bring one home as I often would like to share one antenna with two receivers simultaneously.

Elecraft

PX3The only new product I know of from Elecraft is the PX3 Panadapter for their Kx3 transceiver. Reviews of the larger P3 Panadapter for the Elecraft K3 are excellent, so I imagine this will be a great product. I hope to check out the PX3 at the Elecraft booth–I believe they’ll have a prototype on display.

SDRs

For the past three years, the market for software defined radios has been growing rapidly. I’ll be on the lookout for anything new–especially improvements on current 3rd generation SDRs.

Did I miss something?

Please comment if there’s something you’d like me to check out at the Hamvention–I’ll try to include it!

Again, if you’re attending the Hamvention, please stop by and introduce yourself at our booth: 411 in the Ball Arena (BA411).

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The Juno Earth Flyby QSL card

Happiness is receiving the Juno Earth Flyby QSL card in the mail:

JunoQSLFront-Med

JunoQSLBack-Med

Many thanks to the NASA Jet Propulsion Laboratory for making the Juno Flyby such a fun experiment. To read more about the flyby, check out our post from last year.

Were any readers able to “work” the Juno spacecraft?

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Yaesu FT-817 as a travel receiver

SWLing Post reader, Anil, comments on Traveling light, SWLing right:

Yaesu-FT-817

The Yaesu FT-817nd general coverage QRP transceiver

“I would like to suggest another candidate that is really hard to beat and is fantastic value when you buy a used one – The Yaesu FT-817 Low Power Transceiver.

It has outrageously good General Coverage performance and a massive LF – UHF coverage receiver. It has the same paperback footprint as many of the travel radios you review and a built in battery pack albeit a fairly low capacity one.

When it comes to extracting weak signals out of noise and interference it is head and shoulders above the rest with a switchable pre-amp, variable RF gain and attenuator, pass-band tuning, narrow filters etc.”

Anil, you’re right. The FT-817 is a very compact, full-featured radio and certainly easy to pack.

Yaesu-FT-817ND

I was an early adopter of the ‘817, having purchased mine in 2000 or 2001. I was living in the UK at the time and traveled extensively throughout Europe for my employer. I looked to the FT-817 as a means to play ham radio on the go. It easily fit into my carry-on bag at the time.

Like you, I was very pleased with the receiver though I had nothing to compare it to at the time.

I kept the FT-817 for about five years, but eventually sold it. I started using the Elecraft KX1 as its replacement.  I found that, for me, the ‘817’s front face was a little too small and some of the multi-function knobs could be a little frustrating to use while on the air. Those were relatively minor criticisms, though–the ‘817 continues to have a large fan base and is enjoying very long product life.

Anil, many thanks for sharing your comment!

Click here to check out the Yaesu FT-817 at Universal Radio or click here to search eBay for a used one.

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Video: Build your own SDR

(Source: HamRadioNow via the Southgate ARC)

“Need that title decoded? MDSR = Modulator/Demodulator Software Radio. DIY = Do It Yourself (DOH! I knew that), and SDR… can you guess? Yes! Software Defined Radio. OK?

So, in this episode, Alex Schwarz VE7DXW will tell you about doing SDR on the cheap, using stuff you already have (a conventional SSB radio and your computer), plus their inexpensive interface. You pull RF out of your radio’s IF (some are easier to get into than others), run it thru their board, and into your computer for demodulation, filters… all the usual SDR stuff. And they’re just introducing the Transmit side of the equation.

Their web site is: http://users.skynet.be/myspace/mdsr

Watch HamRadioNow Episode 116 from the DCC: MDSR (DIY SDR)”

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Video: Tecsun PL-880 tuning through a CW pileup

photo (5)

While working outside today, I propped the PL-880 up on the tailgate of my truck and listened to some international broadcasters on shortwave. I then received a message from a reader asking if I would make a video of the PL-880 being tuned to CW (Morse Code).

I switched the PL-880 into SSB mode and quickly found a “pileup” of CW operators around 14,035 kHz.

In this video, I used the fine tuning control and the bandwidth selector to give you an idea how the PL-880 sounds in tight conditions. The bandwidth will narrow all the way to 500 Hz (.5 kHz)–a very respectable width for CW. While it doesn’t sounds as good as an amateur radio transceiver, it is certainly better than any other portable shortwave radio I own.

Also, about halfway through the video an operator begins tuning up in the middle of the CW pileup (terrible manners!); I used it as an opportunity for you to hear how smooth the PL-880’s 10 Hz steps sound as I move away from his signal.

You’ll also note that I press and hold the number 6 and the display flashes “OFF.” I believe this is a noise reduction feature, but will need a little more time to experiment.

You can follow all Tecsun PL-880 updates by bookmarking/checking this link.

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