XHDATA D-808 and Digitech AR-1780: Comparing size and appearance

Digitech AR-1780 (left) and XHDATA D-808 (right)

Tuesday evening, I received my long-awaited XHDATA D-808 from AliExpress via the postal service. Yesterday morning, I unboxed it and started charging the included 18650 Li-Ion cell. I haven’t properly put it on the air yet but if you’re interested in some initial reports, check out these previous posts.

Dimensions

I was  curious if the Digitech D-808 was identical in size to the Digitech AR-1780–I could tell even from D-808’s initial information that these two radios share a common ancestry.

To my surprise, they are not identical in dimensions! With that said, the differences are very marginal.

The D-808 is 7 mm wider and 2 mm deeper than the AR-1780.

To confirm measurements, I checked out the manufacturer specifications of both radios.  Oddly, the specs also indicate that the AR-1780 should be 3 mm taller than the D-808 but I don’t detect this difference. I measure them to be equal in height.

The telescoping antennas are identical in height and number of segments.

Of course, as you can tell from the photos, the D-808 body is light grey in color while the AR-1780 is black.

Batteries

The Digitech AR-1780 uses four 1.5V AA cells while the XHDATA D-808 uses one less common 3.7V 18650 Li-Ion rechargeable cell (included).

External Power

The XHDATA D-808 (left) and Digitech AR-1780 (right).

The XHDATA D-808 has a standard 5V Micro USB port for internal changing. The AR-1780, on the other hand, uses a much less common 7V DC plug.

Right panels are identical.

Having a 5V micro USB port is a huge plus for the D-808, in my opinion! While travelling, I always have at least one micro USB charger.

Backlighting

The LCD display appears to be identical in size and display information, however the D-808 has blue backlighting while the AR-1780 has orange backlighting.

The Digitech AR-1780

The XHDATA D-808

Keypad

AR-1780 (top) D-808 (bottom)

Other than variations in button shapes and color, the only difference between the two radios is the location of the power button.

The Digitech AR-1780 keypad

The XHDATA D-808 keypad

As Guy Atkins mentioned in a previous post, the D-808 keypad buttons are almost flush with the radio body. The buttons on the AR-1780, on the other hand, are more prominent and tactile.

Accessories

The Digitech AR-1780 shipped with no accessories–the only two items in the box were the radio and the owner’s manual.

I was surprised when I opened the D-808 box to find a padded carry/travel bag, USB charging cable and even a compact external wire antenna.

Summary

There are actually few differences between the XHDATA D-808 and the Digitech AR-1780 in terms of physical appearance and function.

All in all, though, I prefer the D-808 package which ships with a carry bag, power cord and external wire antenna. In addition, the D-808 uses a standard and convenient Micro USB port for charging!

In terms of size/weight, the differences are negligible and wouldn’t sway my purchase decision.

Over the course of the next week, I hope to spend some time comparing their performance on the air. Though they appear to be from the same family, will one sibling outperform the other?  We shall see!

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ETOW distributes radios to hurricane-ravaged Puerto Rico through amateur radio network

In November, we posted an update on the Ears To Our World website with information about our most recent work in Puerto Rico.

After Hurricane Maria left the majority of Puerto Rico without power and basic services, at ETOW we waited for the right opportunity (after food, water and medical supplies were rushed in) to send self-powered radios to those still living without power and in need of basic community information.

Once US Postal Service delivery was restored to the island, we turned to our amazing volunteer (and SWLing Post contributor) Robert Gulley (AK3Q) to coordinate the process.

Robert contacted the Lares Amateur Radio Emergency Service (LARES) in Puerto Rico and asked for their assistance. Nelson Santiago (WP3B) with LARES enthusiastically volunteered to venture out into the community and distribute radios to those who needed them the most–families still lacking mains power. The LARES club distributed the radios effectively and efficiently–they also photo-documented everything.

The whole process was simply amazing to watch unfold.

Many thanks to Universal Radio who helped us quickly procure 15 self-powered radios for our initial pilot shipment. As of December, we’ve now sent and distributed an additional 40 radios–totaling 55 units to 55 families.

This whole project became a reality through our network of radio enthusiasts. We’re so grateful to everyone involved.  Thank you!

Click here to view photos and read about this project at Ears To Our World.

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CommRadio CTX-10 availability update

The CommRadio CTX-10 QRP transceiver

Universal Radio is now taking orders for the CommRadio CTX-10 QRP transceiver. The price is $999.99 and the expected shipping date is March 1, 2018. Universal notes that they will not charge customers until the units begin shipping.

Once radios are in production, I plan to review the CTX-10.

Click here to view the CTX-10 at Universal Radio.

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Alan Roe’s updated B17 season guide to music on shortwave

Many thanks to SWLing Post contributor, Alan Roe, who notes:

I have now updated my Music on Shortwave listing for the B17 season, and attached version 2.0.

Alan, thanks so much for keeping this excellent guide updated each broadcast season and for sharing it here with the community!

Click here to download Alan Roe’s B17 Shortwave Music Guide version 2.0 (PDF).

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Tom explores the depths of radio astronomy

26 meter telescope at the Pisgah Astronomical Research Institute.

Many thanks to SWLing Post contributor, Tom L, who writes:

I have been curiously surveying uses of radio in different areas of industry and Astronomy came up as a hot topic the last couple of years according to recent Google searches. Radio was a giant popular commercial success in the 1930’s and 1940’s. But Radio Astronomy was still in its infancy with military radar. A Bell Labs engineer (Karl Jansky) accidentally discovered signals coming from an unknown source. He and his mentor figured out that it was coming from the center of the Milky Way.

https://en.wikipedia.org/wiki/Radio_astronomy

Fast forward to today and it looks nothing like the early days. Computer control and very large arrays have made it possible to boost the wide-field resolution massively. We are now able to see molecules in space outside our solar system and filaments connecting star nurseries. Here are just a few recent articles that hint at major news coming from this field of study. If you have a science student interested and has the talent for Astronomy, Radio Astronomy promises to be on a variety of cutting edges of discoveries over the next few decades from local Space Weather, biological search, and how stars form.

Radio telescopes are essential to discovering “Galaxy Ecosystems”: Click here to download PDF.

Enjoy!

Thanks, Tom!  I’ve been fascinated with radio astronomy since my undergraduate years in the early 1990s. I’m now a volunteer at the Pisgah Astronomical Research Institute (PARI) and have learned so much through their research. If you ever have the time, I would encourage you to visit PARI or one of the NROA sites like Green Bank or the Very Large Array.  Well worth the detour! Thanks for sharing those articles!

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Al shares vintage RAE theme

Many thanks to SWLing Post contributor, Al Quaglieri, who writes:

In the ’60s and ’70s, RAE had a really evocative theme song that opened and closed their broadcasts. For years I searched for a copy of this, even going as far as writing the station about ten years ago. They graciously obliged, sending me a recording of the LATER theme, not the one I wanted. Well, here it finally is. RAE used an edited-down version.

My clip begins with a vintage RAE open and close, and then the song! It’s an obscure composition by Argentine composer Waldo de los Rios, entitled “Sol Alegre,” from a 1957 Columbia album called “Kiss of Fire.” Hope it brings back some memories!

Click here to listen at Clyp.it.

Thanks for this stroll down Memory Lane, Al!

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From the Isle of Music and Uncle Bill’s Melting Pot, Jan 14-27


From the Isle of Music, January 14-20 and January 21-27:
January 14-20, our special guest is the award-winning Cuban jazzista Alejandro Falcón, who will talk to us about his new release Mi Monte Espiritual, and we will listen to a few selections from that album
January 21-27, in honor of Jazz Plaza, we will listen to a potpuorri of excellent Cuban Jazz from the 1970s until today
Four opportunities to listen on shortwave:
1. For Eastern Europe but audible well beyond the target area in most of the Eastern Hemisphere (including parts of East Asia and Oceania) with 100Kw, Sunday 1500-1600 UTC on SpaceLine, 9400 KHz, from Kostinbrod, Bulgaria (1800-1900 MSK)
2. For the Americas and parts of Europe, Tuesday 0100-0200 UTC on WBCQ, 7490 KHz from Monticello, ME, USA (Monday 8-9PM EST in the US). This is running on a backup transmitter due to a recent fire.
3 & 4. For Europe and sometimes beyond, Tuesday 1900-2000 UTC and Saturday 1200-1300 UTC on Channel 292, 6070 KHz from Rohrbach, Germany.

Uncle Bill’s Melting Pot, January 14 and 21, 2018
Episode 45 of Uncle Bill’s Melting Pot, January 14, will be a bag of surprises, a little of this and that.
Episode 46 of Uncle BIll’s, Melting Pot, January 21, will focus on Albanian folk music. We promise it will be fun. 
Sundays,
2300-2330 UTC (6:00PM -6:30PM Eastern US) on
WBCQ The Planet 7490 KHz shortwave from the US to the Americas and parts of Europe

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