Tag Archives: Ham Radio

Covid-19: Popular Yaesu and Alinco rigs meet early demise

 

No doubt, the Covid-19 global pandemic has had a mostly negative impact on our daily lives. 

Surprisingly, I found that the impact on the amateur radio world, at first, was quite minimal. Not only did sheltering at home seem to increase the number of operators on the air, but I found that most of the radio items I needed to purchase were largely available.

Since mid-May, however, radio retailers have struggled to maintain inventory on certain items mainly due to shipping issues from manufacturers (especially when international shipping was involved). Covid-19 issues have also delayed the introduction of a number of transceivers and portable shortwave radios we should have seen in production already.

Most recently, however, I learned from a trusted source that Covid-19 has lead to the early demise of at least two popular radio models.

Alinco DX-R8T: Discontinued

The Alinco DX-R8T has enjoyed a long product life. I recall reviewing this fine tabletop receiver back in 2011. It has been a very popular radio because it’s been one of the only “legacy” tabletop receivers still in production.

I recently learned that Alinco will no longer produce the DX-R8T due to “parts issues.” One would have to assume that this will also affect the DX-R8E (EU version) and eventually the DX-SR8T which is the transceiver version of this model.

Retailers may still have some inventory of these models, but once those models have been purchased, there will be no more. I would certainly suggest purchasing the DX-SR8T transceiver as an alternative since the price difference is modest and it’s built on the same receiver as the DX-R8T.

Yaesu FT-450D: Discontinued

Like the Alinco above, Yaesu has announced that they are discontinuing production of the popular Yaesu FT-450D general coverage transceiver due to “parts issues.”

Yaesu FT-DX1200

It’s worth noting the venerable Yaesu FT-DX1200 recently met the same fate.

To be clear: parts obsolescence happens in the best of times.  Covid-19 has simply accelerated the issue.

If you’ve been considering the purchase of one of these models, you might bite the bullet now if you can find a retailer with inventory.

If I learn of any other radios being discontinued, I’ll publish updates here on the SWLing Post.

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Radio Waves: FCC Fines Drone Retailer, High School WSPR Buoy, Flashing Radio Firmware, and “Radio Recliner” Powered by Senior Resident DJs

Radio Waves:  Stories Making Waves in the World of Radio

Because I keep my ear to the waves, as well as receive many tips from others who do the same, I find myself privy to radio-related stories that might interest SWLing Post readers.  To that end: Welcome to the SWLing Post’s Radio Waves, a collection of links to interesting stories making waves in the world of radio. Enjoy!

Many thanks to SWLing Post contributors Ron, Pete Eaton, Paul Evans, and Jennifer Gulley for the following tips:


FCC Fines HobbyKing Nearly $3 Million for Marketing Unauthorized Drone Transmitters (ARRL News)

The FCC has issued a Forfeiture Order (FO) calling for HobbyKing to pay a fine of $2,861,128 for marketing drone transmitters that do not comply with FCC rules. An FCC Enforcement Bureau investigation stemmed in part from a 2017 ARRL complaint that HobbyKing was selling drone transmitters that operated on amateur and non-amateur frequencies, in some instances marketing them as amateur radio equipment. The fine affirms the monetary penalty sought in a June 2018 FCC Notice of Apparent Liability (NAL). The FCC said its investigation found that dozens of devices marketed by the company transmitted in unauthorized radio frequency bands and, in some cases, operated at excessive power levels. “Such unlawful transmissions could interfere with key government and public safety services, like aviation systems,” the FCC said.“We have fully considered HobbyKing’s response to the NAL, which does not contest any facts and includes only a variety of legal arguments, none of which we find persuasive,” the FCC said in the FO. “We therefore adopt the $2,861,128 forfeiture penalty proposed in the NAL.”[]

High School Marine Buoy Transmitter Now Active on 20-Meter WSPR (ARRL News)

Phil Karn, KA9Q; Randy Standke, KQ6RS, and members of the Mount Carmel High School Amateur Radio Club (MCHSARC) in San Diego have constructed and deployed an amateur radio marine buoy in the Pacific. The buoy, which transmits WSPR on 14.0956 MHz USB, has already been heard around the continental US, Brazil, Hawaii, Japan, Costa Rica, Australia, and South Africa.

“Over the past year, Randy and I have mentored the MCHSARC in designing and constructing a simple marine buoy that was deployed from the RV Sally Ride [on July 16], about 700 kilometers off the coast of southern California,” Karn said in a post on the AMSAT Bulletin Board. “It is up and transmitting WSPR on 20 meters using the call sign KQ6RS, and is being received all over the US and into Canada and Brazil.” Karn is blogging about the project with updates.

The electronics are the 20-meter WSPR version of the WB8ELK “pico tracker” that has been flown on long-duration balloons. “We removed the solar panels and substituted 21 ordinary alkaline D cells, wired to supply 4.5 V,” Karn explained. “We estimate battery lifetime will be 6 months.”

[…]The first reception report was on July 16 at 12:52:30 UTC from grid square CL89eu, although the current carried the buoy east into CL89fu at 20:32:30 UTC. The buoy (KQ6RS-1) can be tracked on the APRS and WSPRnet sites.[]

Stop Bad Laws Before They Start (Hackaday)

With everything else going on this summer, you might be forgiven for not keeping abreast of new proposed regulatory frameworks, but if you’re interested in software-defined radio (SDR) or even reflashing your WiFi router, you should. Right now, there’s a proposal to essentially prevent you from flashing your own firmware/software to any product with a radio in it before the European Commission. This obviously matters to Europeans, but because manufacturers often build hardware to the strictest global requirements, it may impact everyone. What counts as radio equipment? Everything from WiFi routers to wearables, SDR dongles to shortwave radios.

The idea is to prevent rogue reconfigurable radios from talking over each other, and prevent consumers from bricking their routers and radios. Before SDR was the norm, and firmware was king, it was easy for regulators to test some hardware and make sure that it’s compliant, but now that anyone can re-flash firmware, how can they be sure that a radio is conformant? Prevent the user from running their own firmware, naturally. It’s pretty hard for Hackaday to get behind that approach.[]

New Internet Radio Station Helps Seniors Share Their Favorite Music (NPR)

A new internet radio station called Radio Recliner has started during the coronavirus pandemic. It gives residents in senior living facilities a chance to share some of their favorite music.

Click here to check out the Radio Recliner website.


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New Technician HF Privileges Defined: ARRL board accepts final recommendations of the Band Planning Committee

(Source: ARRL News)

During this session, the [ARRL] Board took the following actions:

Accepted the final recommendations of the Band Planning Committee. Committee chair and ARRL First Vice President Mike Raisbeck, K1TWF, introduced the motion to adopt the plan. An earlier draft of the plan was introduced at the Board’s in-person January meeting. After the January Board meeting, the Committee received and considered hundreds of comments from interested amateurs. The final band plan can be viewed on the ARRL website.

The new plan only applies to the HF band and makes no changes to 160 and 60 meters. A couple other notes from the accepted plan:

  • No changes to CW allocations throughout all amateur bands
  • RTTY and all other narrowband, non-ACDS modes permitted wherever data
    modes are allowed

As you read through the changes, keep in mind that the new plan addresses expanded Technician HF privileges and also re-defines ACDS (Automatically Controlled Digital Stations) allocations among other modifications.

Technicians will be happy to note they’ll have new phone and image privileges on 80 meters (3,900 – 4,000 kHz), 40 meters (7,225 – 7,300), and 15 meters (21,350 – 21,450 kHz).

Click here to download a PDF of the accepted (final) proposed plan.

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Free RSGB RadCom Basics July 2020 issue

Many thanks to SWLing Post contributor, Paul Evans, who notes that the Radio Society of Great Britain has made the July 2020 issue of the bi-monthly RadCom Basics free to download.

Click here to check out the July 2020 edition on the RSGB website.

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The new Silphase R1 SDR receiver


I’ve just learned about a new SDR receiver in development by the Polish company Silphase. It’s called the Silphase R1 and appears to be a stand-alone, high-performance SDR receiver.

What could set this receiver apart from the rest is the:

  • Color backlit 5″ TFT touch screen display
  • Magnesium alloy body/chassis
  • USB out for recording and native logging
  • Record to internal “flash memory” (unclear if audio and/or spectrum)
  • Four internal speakers
  • 12.6V 12000 mAh, internal battery
  • IP55 rating for water/dust protection
  • The price is $1199/€1099 with no expected availability date at time of posting
  • Click here to download the PDF product brochure.

The receiver is portable and will measure 11.25×4.3×2.2in (285×110×55mm). Looks like the screen will be 5″ which should allow for a detailed spectrum viewing area (for comparison, the Icom IC-7300 TFT display is 4.3″)

Siphase is a new company based in Poland and they claim they also plan to eventually produce transceivers:

“At the end of 2020 we will introduce a 25W transceiver in the same form factor powered by an internal battery, and a bit little later a 100W transceiver in the same form factor also powered by an internal battery.”

The Silphase product page has a complete list of specifications, but here are some worth noting:

  • Frequency coverage RX 0.1–30MHz
  • Frequency resolution 1Hz
  • Frequency steps 1Hz to 1KHz
  • Dual VFO
  • Direct sampling 16bit high speed 122 M/s ADC
  • Modes: CW, SSB, AM, FM
  • Sensitivity 1.8–29.999MHz, SSB/CW: (BW: 2.4kHz at 10dB S/N) – 132 dBm, 0.06?V
  • 20dB LNA
  • Spurious and image rejection >90 dBm
  • Clipping level -3dBm
  • DSP (various filters, adaptive noise reduction, automatic notch filter, notch blanker, adjustable filters (0-1KHz HPF,0.5-6KHZ LPF, 50Hz step, etc.)
  • AGC (slow, medium, fast)
  • Main filter sharpness Factor 1.05 and lower
  • Audio recorder (use the internal flash memory or USB 16GB external flash memory)
  • Virtual USB audio card for OS update
  • Ham radio hardware log
  • OS QNX (“UNIX-like” real time operating system)
  • Telescopic antenna with F connector
  • Main optical encoder and four multifunction encoders
  • 6 input modes buttons (attenuators, adjustable filters, AGC, NB, auto notch filter, NR)
  • Power supply requirement 12.6 DC ±15%
  • Power consumption RX 0.6 A typical
  • Battery 12000 mAh, 12.6V (3×3.7V/12000 mAh)
  • Operating time 20 Hours
  • Operating temperature range –10C to +60C; 14F to 140F
  • Frequency stability Less than ±0.2ppm (–10?C to +60?C; 14?F to 140?F)
  • Dimensions (W×H×D) 285×110×55mm; 11.25×4.3×2.2in
  • Weight (approximately) 1.8kg; 4 lbs
  • Magnesium alloy body, IP55 (in future IP 67)
  • “Expected Operational Lifetime 30 Years” With One Year Warranty – Additional Warranty
  • Made in EU

As I learn more about this receiver and the company producing it, I’ll post updates with the tag: Silphase R1

Click here to check out the Silphase website.


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Video: Josh takes us on a tour of the lab599 Discovery TX-500 QRP transceiver

Many thanks to SWLing Post contributor, Josh (KI6NAZ), who shares a link to his YouTube channel where he takes us on a tour of the lab599 TX-500 Discovery:

Click here to check out Josh’s channel, Ham Radio Crash Course on YouTube.

Thanks for sharing this, Josh! The TX-500 is certainly a unicorn in the world of field-portable QRP radios since it’s designed to be weather-proof.

lab599 has confirmed that they will dispatch a TX-500 loaner unit for my upcoming review.  I’m looking forward to see how it plays in the field and might compare with other QRP rigs in my arsenal!

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How would an Icom IC-705 compare with the Xiegu G90?

Xiegu G90 with remote head detached.

Many thanks to SWLing Post contributor, Paul, who asks:

How does the Icom compare with the Xiegu G90, besides lack of a built-in antenna tuner, and having lower transmit power, and a better screen?

Good question, Paul.

The G90 is a great radio for sure and has better specs and features than I would expect from a $450 transceiver. I’ve taken it on a number of portable field operations and love it. My full review of the G90 will appear in the August 2020 issue of The Spectrum Monitor.

Keep in mind that at time of posting (July 21, 2020) no one has really reviewed and compared the performance of a production run IC-705 with any other radio as of yet. I will purchase an IC-705 for review as soon as they start shipping in the US, but I don’t expect to be able to do that until September or October at best. So we can’t really speak about performance at this point.

What makes the IC-705 unique in the portable radio market is the number of features it will sport.

Here’s a short list of features the Icom IC-705 has that the Xiegu G90 does not have:

  • Attachable battery pack
  • Lower current drain in receive per Icom specifications
  • CW memory keyer with beacon mode
  • Voice memory keyer with beacon mode
  • D-Star mode with built-in WiFi to connect to Internet/hotspot
  • Built-in GPS
  • Built-in TX/RX recording
  • Broader receive range: 0.030–199.999 and 400.000–470.000 MHz
  • Multi-mode 6M/2M/70CM TX and RX
  • Touch screen display that is customizable
  • Built-in WiFi and Bluetooth
  • Native to digital modes–no external sound card interface needed
  • Frequency stability less than 0.5 +/- ppm in VHF/UHF, making it ideal to drive an amplifier for demanding tasks like EME

The Xiegu G90 actually has a few features that the Icom IC-705 will not:

  • Built-in (very effective) automatic antenna tuner
  • Antenna analyzer function [Update: Geoff notes “The Icom IC 705 does also have a VSWR Plot/analyser in the menu same as the IC7300 and iC 7100, page 9.3 in the advanced IC 705 manual”
  • 20 watts of output power (the IC-705 has a max output power of 10 watts using an external 13.8V battery source)
  • 10.8 kHz AM bandwidth (the IC-705 maxes out at 6 kHz per specs)
  • Detachable faceplate which will likely make mounting it mobile even a little easier than the IC-705 (although in truth both transceivers are very compact and should be easy to mount)
  • Side panels that protect the front faceplate and rear connections

At the end of the day, though, the Xiegu G90 is an excellent little budget transceiver. It’s feature-rich compared with other transceivers in this price bracket, but basic compared with the IC-705 or Elecraft KX3 or KX2.

The Icom IC-705 will have a retail cost well over two times that of the G90 but will sport features that no other QRP transceiver has up to this point. In fact, the list of features above is only a sampling.

If none of the unique features of the IC-705 appeal or apply to you and your operating style, save a little money and grab the G90. Or consider spending a bit more for an Elecraft KX2.

If you want an incredibly feature-rich transceiver and are comfortable with a price point in excess of $1100-1200 US (estimated at time of posting), you might delay purchasing until you’ve read a few user reviews of the yet-to-be-released Icom IC-705.

Thanks for your question!


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