Tag Archives: Ham Radio

Ivan compares the AirSpy HF+ to the KiwiSDR

Many thanks to SWLing Post contributor, Ivan (NO2CW), who writes:

I have been running a public Kiwisdr server for a while and yesterday decided to plug in the new Airspy HF + into the same antenna for a side to side comparison. The antenna is an 80m dipole and the test was done during local afternoon, around 3 PM. I did not use any of the many new noise reduction features that are incorporated into both SDR Console 3 and the SDR web server. The 11 minute video is located here:

Click here to view on YouTube.

When I have the time I will run a similar test in nighttime conditions and also test the Airspy HF+ against a few other radios sitting on my desk.

Thank you for sharing this, Ivan!

Pete reports new developments with the uBITX transceiver

Many thanks to SWLing Post contributor, Pete Eaton (WB9FLW), who writes:

Last March, Ashhar Farhan (VU2ESE) the designer of the very popular BITX20 and BITX40 series of mono-band HF Transceivers announced a new low cost rig called the uBITX (micro BITX) a full blown 80-10m 10 Watt SSB/CW Transceiver. Now comes word that after many months of very hard development work by Ashhar this much anticipated Rig will soon be available.

For those not familiar with the project this is *not* a kit, rather like its sibling (the BITX40) it consists of two assembled and tested Circuit Boards. The RF board measures 5.5 x 6 inches and a second small plug in daughter card that takes care of the digital portion of the design including the 2X16 LCD, Arduino Nano, and Si5351 which are used in the VFO.

Add a cabinet, knobs, and connectors and you have a full blown HF Rig! An added plus is that except for the Gerber PCB files everything else (including the firmware) is Open Sourced!

The original description can be found here:

http://www.phonestack.com/farhan/ubitx/ubitx.html

Farhan has just released the Firmware, Schematics, and Wiring Diagram for the production version on GitHub

Arduino Sketch:

https://github.com/afarhan/ubitx

RF Board Schematic:

https://github.com/afarhan/ubitx/blob/e481ea2a2457fc4e7be7a6a4bc9a0fba12bf2cde/ubitxv3.pdf

Digital (Raduino) Board Schematic:

http://www.phonestack.com/farhan/ubitx/raduino.pdf

Wiring Diagram:

https://github.com/afarhan/ubitx/blob/e481ea2a2457fc4e7be7a6a4bc9a0fba12bf2cde/ubitx_wiring.png

Farhan has a social conscience as well giving several local ladies much needed employment for final assembly and checkout of the Rigs.

There are still a few final tweaks being done to the design so pricing is still to be determined. But if it’s offered at a similar price point as his earlier Transceivers it should sell like hotcakes!

For the latest info check out the BITX User Group at:

https://groups.io/g/BITX20

Wow!  Amazing project!  Thanks for the tip and updates, Pete!

Video: TX Factor Episode 19

(Source: TX Factor)

In this show we kick off with part one of our reports from Hamfest 2017 with a preview of the Icom IC-7610 and IC-R8600 rigs. We meet the new owners of PW Magazine, and Pete tries his hand at the RSGB on-line exam. There’s also an update on the RSGB’s EMC Committee’s findings.

Bob finds his way back to New Broadcasting House in London where the Director General discovers he has amateurs working for the BBC.

And, you can win a mobile linear-amp for your handie in our next free-to-enter draw.

Click here to view Episode 18 on TX Factor’s website, or click here to watch on YouTube.

Thanks for yet another excellent and informative episode, TX Factor!

Changes to Iceland’s ham radio call sign configuration

(Source: Southgate ARC)

Iceland plans to end ham radio call sign discrimination

On November 9, 2017 Iceland’s Ministry of Transport and Local Government has published draft changes to the Radio Regulations for comment

The national society, Icelandic Radio Amateurs (IRA), had proposed ending the practice of highlighting amateurs who had Novice call signs, an N was added to their call sign. In addition the IRA proposed ending another discriminatory practice where Icelandic call signs reflected the geographic call area where a station is located.

The Post and Telecom Administration’s new draft Radio Regulations incorporate the IRA’s requests and the frequency allocation table has been updated to include the 630m and 60m bands.

Read the Icelandic Radio Amateur article in Google English at
http://tinyurl.com/IcelandIRA

Draft amendment with new frequency table
https://www.stjornarradid.is/lisalib/getfile.aspx?itemid=a0bf8794-c538-11e7-941e-005056bc4d74

The old frequency table is at
https://www.reglugerd.is/reglugerdir/allar/nr/348-2004

Free Ham Radio Class videos available online

Many thanks to SWLing Post contributor, Gary Wise (W4EEY), who shares the following:

As you might know, Dave Ivey, KE4EA, and I have been teaching Ham Radio classes in Greer, South Carolina (under the sponsorship of the Greer Amateur Radio Club – and Greer Parks and Recreation). We are completing Technician and General classes later this month.

What might be of interest to your readers, if they have ever thought about getting their own Ham Radio license, is that we have recorded the classes, and posted them online at my YouTube channel. Anyone can view the videos and prepare for the amateur radio exams at home. License Tests are given by a variety of Volunteer Examineers all over the United States.

A link to the channel is here. (The channel name is my callsign, W4EEY.)

We use the ARRL License Manuals as a basis for the class. Links to the books are here:

Technician http://www.arrl.org/shop/ARRL-Ham-Radio-License-Manual-Spiral-Bound/

General http://www.arrl.org/shop/ARRL-General-Class-License-Manual-Spiral-Bound/

Extra http://www.arrl.org/shop/ARRL-Extra-Class-License-Manual-Spiral-Bound/

This was all new to us this year and the first videos are pretty basic. But we’ve made improvements along the way, and hope to continue with the effort. We will have Technician and Amateur Extra classes starting in January and will continue to record and edit the videos for each new class session.

Ham Radio is the best hobby in the world! Dave and I enjoy teaching the classes and helping others into this great hobby.

Vy 73,

Gary W4EEY

Thank you so much for sharing this, Gary!

Readers, what Gary didn’t mention is that I’ve checked out his ham radio classes in person–he invited Vlado (N3CZ) and I to do a presentation on my favorite topic: field portable radio! The class was packed with students and all of them were enthusiastic. Gary and Dave have really put their labor of love into a proper class, with peer support and interactive hands-on demonstrations. I was amazed with the diverse group of students in his Technician class last year.

Again, thanks for sharing, Gary and keep up the good work!

Check out their ham radio class videos on Gary’s YouTube channel.