Mark’s Malahit DSP-2 notes

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Many thanks to SWLing Post contributor, Mark, who recently shared the following comments in response to Dan Robinson’s excellent Malahit DSP-2 review series. Mark writes:

I’ve been playing with my new Malachit for a week now and I am very impressed. It’s got a superb receiver and last night I was pulling in several South American stations using the absolutely amazing Bonito MA305 with the longer whip, not the stock one, it’s around 30 feet up in a tree using H155 coax grounded at the base of the tree, this antenna really blows me away. Some of these stations are only 1Kw and the little Bonito was pulling them in very well indeed. I am in the country so have a very low noise floor and QTH is Ireland.

Yes I do have to turn the RF gain to 0 and use around 20db attenuation on Longwave but I know what I should be receiving here in Ireland on LW and by using attenuation it has no negative effect on LW. I do have a strong enough LW transmitter around 45-50 miles away which is probably having an effect here but if I compare it to my Tecsun PL-990x the Malahit completely obliterated the 990x on LW even with the attenuation on the 990x. Its performance on LW with external antenna is very poor even using one of the hidden features by Press and hold the [ 3 ] key for about 2 seconds, this does make a notable improvement to the 990x on LW and MW but the Malahit completely obliterates it on LW and External antenna. Of course the Malahit has no internal ferrite so without external antenna you won’t receive anything on LW or MW.

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Check out the new scheduler functionality in SDRuno V1.41

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Many thanks to Jon Hudson with SDRplay who shares the following information about the latest release of SDRuno on the SDRplay blog:

Try out the new features in SDRuno V1.41 released today

SDRuno V1.41 was fully released today.  It includes the much requested full scheduler facility which allows you to set up numerous recording events for your RSP.  As well as providing all the expected calendar options (time of day, date, start and stop times, repeating options and so on), you can also set the ‘profile’ for each recording – this allows you to pre-set frequencies, bandwidths, demodulator options (AM/FM/USB/LSB etc.), choice of filters and antenna port selection.  Additionally you can choose the settings for connectivity to other third party software or the running of a specific plugin.

Added
• New Scheduler panel which replaces the old “Recorder” panel (launch using the SCHEDULER button in the main panel).
• A new autolayout to include the scheduler (for screen resolutions of 1920×1080 and above).
• Backup and Restore of the ini file settings (access via the main panel OPT menu)
• Screenshot button has been added to the SP1 title bar
• IQ wav files can now be used in plugins
Changed
• Autolayouts now take account of the taskbar location and size.
• Autolayouts have been improved to take account of higher resolutions.
• Saved workspace notification moved to the status bar.
• Memory Panel will now prompt to save any changes made when switching to another memory
bank.
Fixed
• Decimation and the LOLOCK state are now correctly saved and recalled within a profile.
• Main panel version tooltip now displays correct information.
• The step size could be set incorrectly when using non-FM modes and pressing any of the FM sub
mode buttons.
• ADS-B/DAB mode now handles when in both band-framed mode and also when the LO is locked.
• Bugs associated with wav file playback
• When loading a profile, the last used memory bank field will update correctly
• Saving a profile will now update the displayed loaded profile field correctly
Known Issues
• SP2 CWAFC drift issue (Zoom/window size/freq display)
• IF output mode disabled SP1 spectrum mouse clicks
• Occasionally if SDRuno is closed whilst a plugin is still running, it may not close properly. This may
necessitate a PC reboot to fix it.

You can find this latest version of SDRuno on our downloads system :https://www.sdrplay.com/downloads

Click here to continue reading this post on SDRplay’s website which also includes a number of tutorial videos.

Dean recommends KM4MPF Sales

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Many thanks to SWLing Post contributor, Dean Bianco, who writes:

I have purchased another C Crane SSB Skywave brand-new from an on-line retailer called KM4MPF Sales On-Line Store out of Chattanooga, Tennessee. [I paid a] discounted price of $149.99 vs the $169.99 price charged by C Crane direct. […] I feel not enough listeners would be aware of the significant discount of this fine, but normally pricey receiver. C Crane still earns money in the process, so it is a guilt-free decision to buy from the Tennessee company I would think.

Click here to check out KM4MPF’s selection of radios.

Thank you for sharing this, Dean! I know I have seen KM4MPF at local hamfests in the past. He has a great inventory of radios. Thanks for the tip!

“Anatomy of a Field Radio Kit” series on QRPer.com

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If interested, I’ve now published both parts of my Anatomy of a Field Radio Kit series over on QRPer.com. This series was originally featured in the June and July 2021 issues of The Spectrum Monitor magazine. Here are links to both articles:

These articles primarily focuses on portable amateur radio field kits, but many of the concepts are ones I also use for my field portable receiving setups like this one.

I hope you enjoy!

Radio Waves: DW launches SW Service to Afghanistan, Foreign Sponsorship ID, Tokyo Ham Fair 2021 Cancelled, and the Bond of Gibraltar

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Photo by Claudio Schwarz

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 Dan Robinson, Kanwar Sandhu, Robert Carleton, Mark C. and the Southgate ARC for the following tips:

DW launches shortwave radio service for Afghanistan (DW)

Starting September 13, DW will broadcast daily radio programs in Dari and Pashto via shortwave to provide credible information to listeners in Afghanistan.

Deutsche Welle is launching a shortwave radio service for listeners in Afghanistan. The daily programs will be in both regional languages Dari and Pashto.

“In Afghanistan, media diversity and free access to independent information are under acute threat,” said Director General of DW Peter Limbourg. “DW has an experienced and skilled editorial team for the region which will contribute to providing better information to the people of Afghanistan with a shortwave radio service in Dari and Pashto, in addition to our online and social media offerings.”

The programs will broadcast daily for 30 minutes over the 15230 kHZ and 15390 kHZ frequencies at 14:00 UTC in Dari and at 14:30 UTC in Pashto.

Director of Programs for Asia Debarati Guha said the focus of the programs will be on peace, civil society and gender and human rights issues.

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Hidden connector on Tecsun PL-660?

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Many thanks to SWLing Post contributor, Andy (G0FTD), who writes:

Thomas

Not sure if you’ve come across this, but earlier when I was cleaning my Tecsun PL660 and took the main tuning knob off the spindle, I discovered what looked
like 4 holes of a hidden connector behind it !

I just did a quick search around and I came across a piccy of the PCB on a blog
page here and yes there appears to be what looks like a small USB connector of some sort poking out the PCB where the VFO knob is. [Andy clarifies that he was trying to point out the area to look, but the pic appears to be from the opposite side, so you can’t see it.]

I can’t say that I’ve ever seen reference to it.

Maybe you or your readers might know ?

73 de Andy G0FTD

Thanks for sharing this, Andy. I am curious if that might be the port they use for firmware updates? Perhaps someone here can verify? I gave my PL-660 to a friend and no longer have it here for reference. Please comment if you have some info about this port.