Author Archives: Thomas

Simple modification to disable soft mute on the Tecsun PL-210

Many thanks to SWLing reader, Mini, who wites:

I am Japanese short wave listener.

I found the method that disable soft-mute of TECSUN PL-210.
And, I posted the article in my blog.

Please forgive me that may be difficult for you to understand the content.
It is automatic translation from Japanese my blog.

Thanks mini

Click here to read Mini’s blog post via Google translate.

Click here for the original in Japanese.

Thank you, Mini! I don’t have the PL-210, but if I did I would certainly disable the soft mute as I find it very distracting during routine band scans.

Extra, Extra! A review of Ham Test Online

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Thursday night, I passed my Extra class ham radio license exam and–woo hoo!– I’m chuffed!

The Extra class is the highest class amateur radio license you can hold in the United States. I’ve put off studying for this test for more than 17 years.

Why? Well, for one thing, I’m not an electronics engineer–indeed, I’ve never taken a formal course on electronics other than the practice study I did for my first three amateur radio licenses. The Extra exam is chock-full of formulas and electronics theory and it intimidated me for ages. Studying for it was…well…arduous.

I did, however, enjoy studying for my Technician, Novice and General exams. [Note that today there are only three license classes: Technician, General and Extra and no Morse Code requirement.] Indeed, I learned a lot about circuits and radio wave propagation from those first exams. As soon as my daughters are old enough, I’ll teach them the Technician course work.

What prompted me to study for my Extra license exam this month? I gave a presentation at the Blue Ridge Amateur Radio Club on April 4th–the president announced that the Extra class question pool was going through a major overhaul and I had already invested a few hours studying the current material.

The current Extra class question pool is only valid until the end of June 2016.

I made a decision that evening: it was time to buckle down and cram for this exam! Especially since my radio club (the NCDXCC) was giving exams the following week.

Studying

In the past, I used a combination of exam study guides published by the ARRL and W5YI, and free online practice exams provided by AA9PW. The combination worked very well.

With the Extra exam, however, I needed a method that was more persistent and one that focused on my weakest subjects.

Enter Ham Test Online

About this same time last year (April 2015), I decided to invest in an online course called Ham Test Online (HTO) with the idea that I could take the Extra exam at the 2015 Dayton Hamvention. That exam never happened because, in the build-up to the Dayton Hamvention, I had very little free time to study. Indeed, the same was true this month, but I fit study and practice time in every spare moment I had to get the exam in the books by the club meeting.

Typical Ham Test Online study screen.

According to HTO, I spent a total of roughly 30 hours studying for the Extra exam in total–at least 28 of those hours were within a one week period of time. I wouldn’t recommend this level of cramming for anyone else.

HTO advises that setting aside only one hour of study per day will have you in good shape to take the Extra exam in about one month. That is a much more reasonable timeline.

Ham Test online shows you, at a glance, your weakest/strongest subjects and topics you have yet to cover. (Click to enlarge)

In short: I am very impressed with Ham Test Online. It was worth every penny to have a dedicated tutorial system that was persistent in noting and repeating my weakest subjects.

It’s actually a very simple website and, fortunately, was usable via my Moto X smart phone’s Chrome web browser. This meant that when I was waiting for my kids in the doctor’s office or parking lot, I could study or even take a practice test without needing a PC.

HTO keeps track of your practice exam results and notes any missed questions for review later. Keep in mind that you only need a 75% score or higher to pass the test. I felt comfortable taking the test with scores in the 85% range. (Click to enlarge)

Indeed, at any given time, I had HTO running in a web browser session on my shack PC, my MacBook, my iPad and my smart phone–they all worked in symphony, picking up the last session/topic from the device I was last using.

Summary

Here are a few notes I took while using Ham Test Online:

Pros:

Adaptive study
Ability to skip topics temporarily
Informative, concise study material
Responsive website that is even usable via smart phone
Both the study and exam metrics show amount of material learned or committed to memory
User has control over:
- level of persistence/repetition when a question is missed
- difficulty of practice exams
- ability to skip topics for an 8 hour period of time
- reminder emails when system hasn’t been used for study
- and more…
Useful metrics in both study and exam modes

Cons:

To be honest, it’s hard to list many cons for HTO. I’ve never used a similar online tutorial system for comparison.

I should note that I started studying for the Extra exam last year and perhaps learned 8-10% of the total exam. After a one year hiatus, HTO never assumed I could have forgotten the material I learned last year–bad assumption! (ha ha!) Only a day before the exam, I realized I had forgotten some of the initial study material, so I forced HTO to test me on it by selecting only the first element for study. I’m glad I caught that in time. Perhaps HTO should re-check course material after an extended hiatus?

Obviously, the HTO training method works–I was able to pass my Extra Exam with only about 30 hours of total study time. I’m pretty sure I couldn’t have achieved that with books–especially on such short order–and I know of no other web-based platforms like it on the market [readers: please correct me if I’m wrong].

HTO is efficient and cost-effective–especially for those of us with an active family life. It would work well for someone who wants to learn the course material or, frankly, even for someone who is only interested in memorizing the answers.

HTO’s current price list:

$24.95 Technician Class study course (2-year subscription)
$29.95 General Class study course (2-year subscription)
$34.95 Extra Class study course (2-year subscription)
(includes both the current question pool and the 2016 pool when it becomes available)
$24.95 Renew all previously-purchased courses (for 2 more years)

If you are considering upgrading to the Extra class license, you might do so before July 2016 when the new question pool will be used. At least, for me, the deadline was a good excuse to get my act together and knock the test out!

Readers: Please comment if you’ve found other study methods or systems that have worked well for you.

A QS1R replacement in the works?

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Many thanks to SWLing Post contributor, Ken McKenzie, who noticed the following message from Phil Covington (of Software Radio Laboratory LLC) on the QS1R Yahoo group:

I am working on a replacement for the QS1R that will be less expensive, yet
use updated components. I am hoping to have them in production by the end of March.

Regards,

Philip A Covington
Software Radio Laboratory LLC
Columbus, Ohio
http://www.srl-llc.com

Ken noticed that the message was originally dated about one month ago, so I’ll follow-up with Phil and see how much progress has been made. The QS1R was a well-respected SDR that had been on the market for several years. It would be great to see an updated version on the market.

Look what just landed on my desk: the new Icom IC-7300 direct sampling transceiver

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[UPDATE: Read the full IC-7300 review–along with listener survey results–by clicking here.]

I have a new toy in the shack: the Icom IC-7300.

Last night, a good friend handed over his brand-spanking-new IC-7300 and is allowing me to evaluate it over the next week or so.

The IC-7300 is Icom’s first “entry level” RF, Direct Sampling System HF transceiver.

I’ve only had the IC-7300 on the air for a few minutes, so can’t comment about performance. I can say that it has one of the most intuitive interfaces I’ve seen on a transceiver with so many functions. I also love the spectrum display–small, but large enough to see all of the pertinent information:

It’s a slick machine, indeed!

Time permitting, I plan to post a few audio clips and get reader reactions much like I did for in the portable shoot-out.

I’ll compare the IC-7300 to my Elecraft KX3 and a few SDRs as well. Of course, I’m evaluating this during one of the busiest times in my life, so we’ll see how quickly I progress–!

Simply follow this tag for updates: IC-7300.

From the UNT Digital Library: Music USA as heard in Lagos, Nigeria in 1959

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Many thanks to UNT Archivist, Maristella Feustle, who shares the following set of recordings she recently published in the UNT Digital Library Willis Conover collection.

The description reads:

“A broadcast of Music USA transmitted by station WLWO in Cincinnati, Ohio, and recorded off of shortwave radio in Lagos, Nigeria. It was sent to the Voice of America to document the quality of radio reception in that area. As a live broadcast, the recording also includes news breaks and station identification.”

I should add that you might also hear ambient sounds from Lagos if you listen carefully! Click on the links below to listen to the recording sets via the UNT Digital Library:

Part 1:

http://digital.library.unt.edu/ark:/67531/metadc824409/m1/

Part 2:

http://digital.library.unt.edu/ark:/67531/metadc824410/

Thanks again, Maristella, for all of your work to preserve and share these valuable recordings!

Voice of Justice broadcasts to North America?

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Many thanks to SWLing Post contributor, Richard Langley, who comments:

It seems that the VOIRI “Voice of Justice” broadcast to North America may have been axed.

[I] did a quick search on that phrase in the [Shortwave Radio Audio Archive] but came up empty.

Might be nice if someone with a personal band archive could extract an example of that program and put in on the SRAA.

Can anyone confirm this for Richard? A VOIRI recording would make a nice addition to the archive, where we’re attempting to collect samples of as many shortwave broadcasters as possible.

Part 3: SWLing Post shack photos

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Rajesh Chandwani (VU2OEC), Gurgaon (Haryana), India INDIA

Several months ago, we conducted a shack photo contest sponsored by Universal Radio. I’m posting all of your excellent photos as time allows and putting them under the tag, shack photos.

The following is the third set of ten photos along with any notes that were included.

Click on images to enlarge and enjoy:

Robert Gulley (AK3Q)

Notes: I have a Kenwood TM-D710G with lots of bells and whistles (center-right), including APRS and packet capability, Echolink, computer control, programming and data output, not to mention the regular functions of a dual-band, cross-band repeat radio. Another rig above and to the left (under the computer monitor) is my main all-mode rig, a Kenwood TS-2000. To the right is an old Swan 350 transceiver and power supply. There is an old manual Dentron tuner above that, and sitting atop of it all is an analog Uniden Bearcat BC898T scanner. There is an amplifier, a 220Mhz rig, several HTs, and on the bottom right my pride and joy Yaesu FRG-7 shortwave receiver. I currently have 6 speakers for various sound outputs. Out of the frame are two more computers, two SDR receivers, another monitor and a sound mixing board. I won’t begin to mention all the portable SW radios and several old DX-160s (my first real SW radio). I love listening/transmitting here, but I also take portable radios around the house and on the front or back porch as the mood hits.

Mahesh Jain (57HS4688)

Notes: I am radio hobbyist particularly my beloved shortwave radio. But it makes me sad to see that most of the radio stations on shortwave in my country India are closing their shortwave broadcast and they are going online and digital, which is available to few not the all people. Hope the radio and specially shortwave radio revive soon. Hope we all have good old days back. 🙂

I love my Graundig Yacht boy 80 radios which I won from DW (german radio) and later i bought Sony ICF SW35. I use telescopic antenna and sometimes I use a reel antenna. I have very little technical knowledge about the radios and antennas used. Still, I keep on experimenting and sometimes found far far away stations, which is obviously a thrilling experience. with this hobby of DXing I have learned a lot about different cultures and nations. Moreover i am using the internet technology to get far away stations which are not targeting my country/region and the WEB SDR is the best source.

Ray Sylvester (NR1R)

Notes: Ray’s main shack rig is the Yaesu FTDX5000MP.

Darwin McDonald (SWL/W8)

Notes: The Drake Receiver is my best–using a long wire and an antenna tuner.

S B Sharma

Notes: In the photo above, I am listening to radio at world famous Buddhist temple in Barbadur, Indonesia. Photo taken while I was surfing and listening voice of Indonesia and general overseas service of India on the temple. I have been listening to radio for the past 32 years and continue today. Due to this hobby, I won two free foreign tours till date and hope there will be some more.

Clyde Ramsdell (N1BHH)

Notes: My simple station/listening post is the Icom IC-735 using one of three antennas:

Off Center Fed Dipole (130 feet) at 45 feet high,
160 meter (250 feet long) dipole at 30 feet high,
Random wire, roughly 45 feet draped around my room.

My bedside radio is a Grundig Yachtboy YB-400 with another random wire draped around the room. In the photo (above) you’ll find the Icom IC-735 on the Astron RS-35 power supply, MFJ-949E tuner and Bencher paddle, a Radio Shack Pro-106 scanner, Icom IC-3AT 220 HT and Yaesu FT-2900R.

Jawahar Shaikh

Notes: My favorite receiver is none other than Tecsun PL-660 as it pulls a lot of far away radio stations without any external antenna!!! On MW I could log a number of South Korea, Japan, and Australian radio stations.On shortwave, numerous far away radio stations including 1 KW Australian Marine Weather Broadcast station VMW. On longwave…Vow…Ireland radio on 252 khz…What else do I need from a budget Tecsun?

The tinyTecsun PL-660 is my DX magic box !!!! So,This is my listening post!

Location: Tamil Nadu state, India.

José William

Notes: This is my little shack that is located in my backyard.

Features:
Receiver- DEGEN DE 1103
Antenna- RGP3-OC Loop Magnética and DEGEN 31MS active loop antenna
Amplifier- Amplificador Indutivo de RF DXCB-V1
Recorder- Sony ICD-PX312F

Peter Ströhlein

Notes: My Listeningt post consists of my fav. Kenwood TS-50 (30khz – 30Mhz) and a VHF YAESU FT-1900.

All night long when my kids are in bed, I spend my time listening to numerous SW Stations.

This is my hobby since nearly 30 years! 🙂 So that’s my little listening post, illuminated with two little LED-Spots for SWL Nights with “Style”. 🙂

Hank Dean (KU8S)

Notes: Here are four photos of a portable outing “QRP to the field” op in April 2013. This park is called Bear Pond and is located in the Seminole State Forest, west of Sanford, FL on SR 46, about four miles from my house. I love this place. Great place to have lunch and play radio.

The rig is a Yaesu FT-817ND QRP transceiver, a PAR end fed wire antenna, and SLAB 12v 10AHr battery. Apple IPad does the logging chores. Add some Chinese food, some almond cookies, a little sweet tea, Hmmnnnnnn, life is good!

Life is good, indeed, Hank! What a great way to cap off this third set of shack photos!

Again, many thanks to all who sent in their listening post photos. I absolutely love the variety!

Follow the tag Shack Photos for more!