Shortwave listening and everything radio including reviews, broadcasting, ham radio, field operation, DXing, maker kits, travel, emergency gear, events, and more
Thomas, N1SPY used equipment worth $25 to chase mini satellites. Includes instructions for making a simple circularly polarized antenna. Did it work? Check for yourself!
Thanks, Ivan, for passing along another excellent project by Thomas (N1SPY). I love how simple this project is to put together and the fact that most SWLing Post readers, for example, likely have all of the components already! Great job, Thomas!
I found this cool tabletop transceiver in the flea market area of the Hamvention early Saturday morning and included it with my inside exhibits photos. I wasn’t able to gather a lot of information from the representative at the time because the Hamvention staff opened the gates to general admission a full 30 minutes early, so I had to make a sprint to my table at the other side of the fairgrounds.
The following specifications/features were listed on the RGO ONE product sheet:
QRP/QRO output 5 – 50W
All mode shortwave operation – coverage of the 9 HAM HF bands (160m optional)
High dynamic range receiver design including high IP3 monolithic IC in the front end and H-mode first mixer
Low phase noise first LO – SI570 chip
Full/semi QSK on CW; VOX operation on SSB.
Down conversion superhet topology with 9MHz IF
Custom made crystal filters for SSB and CW and variable crystal 4 pole filter – Johnson type
Stylish and professional look
Compact and lightweight body
Multicolor FSTN LCD
Silent operation with no clicking relays inside
Modular construction – Mother board serves as a “chassis” also fits all the external connectors, daughter boards, inter-connections and acts as a cable harness.
Optional modules – NB, AF, ATU, XVRTER
PC control via CAT protocol; USB FTDI chip
Memory morse code keyer (Curtis A, CMOS B)
Contest and DXpedition conveniences
For even more detail, I recently contacted the rig’s developer, Boris Sapundzhiev (LZ2JR), who kindly answered all of my questions.
There are clickable highlights on the text which lead to a schematic diagram for each module so you can have a look if you like. Final documents and last revision of schematics will be available soon.
The idea of this project was inspired of an old TEN-TEC radios with 9MHz IF – their perfect analogue design and crystal crisp audio both CW and sideband. Mine have two very old TEN-TEC ARGOSY 525D and several moreTEN-TEC equipments. So with the help of the new electronic components available on the market we realize this old concept…
We’ve been working hard for almost three years to see what you saw at Dayton flea market table. A real performing HF 50W CW/SSB transceiver. We are 4 people in the team.. Other team mates are very good in industrial electronics manufacturing and helping very much with electronic PCB design, parts delivery, microprocessors and other things.
The idea of the front panel and other constructions design is mine .. I literally drew it in a couple of hours then our CAD designer put it in AUTOCAD/INVENTOR 3D design software.
Click to enlarge.
Click to enlarge.
Click to enlarge.
LCD we made in China and already stocked plenty of LCD and backlight units. Front panel is made by means of plastic mold method:
I am back in Bulgaria now and today we had a team meeting so it is decided to start first lot 10pcs which will be completely ready to run. The time range of this is somewhere next two months. Then next lot will be 100 units probably some of them or most of them will be in a kit form with ready populated SMD small foot print components.
At the show in Dayton we revealed our target price for the base version – $450-$550. Hope to keep it as promised but final price will be available when first units come to alive.
First units will ship from Bulgaria, then we will try to stock more units in US.
This is briefly about our intentions of the project. A lot of interest, expectations and positive “WOW” feedbacks received so this urge me to go fast forward.
73, GL
Boris LZ2JR/AC9IJ
Thank you for the detailed reply, Boris! I will certainly follow this project with interest and post updates (readers: bookmark the tag RGO ONE).
I love the size of the RGO ONE and the fact it’s capable of a full 50 watts out in such a portable form factor. The front panel is very attractive, ergonomic and the backlit LCD screen is quite easy to read at any angle.
Boris, if you manage to hit your target price of $550 or less, you’ll no doubt sell these by the hundreds! I’ll be watching this project with interest.
Hi, my name is Donald Brown, and I did a video review of the Sangean WR-7 and I thought that you might want to have a look at it and even place it onto your site as well. The YouTube address is here below:
Also, just to let you know, I own a country Internet radio station called Pure Country 100 which can be found here below. I have provided you with the site as well as the direct streaming link.
Be sure to spread the word about the station to as many people as you possibly can. Also, send me a reply to let me know what you think of the video as well as the station.
Thanks for sharing, Donald–I’m quite happy to spread the word!
Dr. Byron St. Clair, president emeritus of the National Translator Association, died May 20 in Denver of brain cancer. He was 93.
St. Clair, who served as president of the National Translator Association for 19 years, is known as the “father of translators, LPTV and low-power FM,” the association said.
He worked to serve those living in the mountainous rural western United States with broadcast service and in so doing created a new class of over-the-air broadcasting, which has grown to more than 4,000 stations that serve millions of people.
“Byron was a friend and mentor to all, a man of immense intellect, wisdom, ethics, kindness and vision,” said NTA President John Terrill.[…]
A highlight from last week was attending a WWII encampment at the Museum of the US Air Force.
SWLing Post readers: If you’ve tried to contact me in the past week, I’m sorry if I haven’t replied yet.
I spent a week on the road attending the 2018 Hamvention and as soon as I arrived back home on Tuesday, I started more family travel. I’m trying to catch up on on email and posts this weekend. I have a number of small announcements, so stay tuned and thanks for understanding!