Welcome, Guest. Please Login.
Linuxslate.com Forums

<=== Back to the Linuxslate.com Homepage

Newest Forum Posts

Nov 27th, 2022, 11:02am
News: Welcome to the linuxslate.com forums. May 2020: Forum registration has been disabled due to recent advancements in bypassing captcha's and the resulting increase in spam on the forums. Registration may be re-enabled at a later date. In the meantime, if you would like to register, please email "john" at this domain, and I will manually create an account for you. Registration is for legitimate and relevant discussion only. Misused accounts will be deleted without warning.


Pages: 1 2 
Malachite DSP - SDR  Radio Receiver (Read 130302 times)
Administrator
Forum Administrator
*****


Administrator

Posts: 103
Re: Malachite DSP - SDR  Radio Receiver
Reply #15 - Mar 12th, 2021, 10:35pm
 
Firmware version 1_10b has been posted to the Yandex Disk site.  As usual, it can be found in the Firmwares folder:
https://yadi.sk/d/4ZgsrswxYClG1Q/Проши[ch1074 ]ки(FIRMWARE)
 
The strange thing is that all of the older firmwares have been removed.
 
Apparently, the authors have gone to some sort of time-limited code to unlock the firmware.  I'm not sure how this works because the Malachite SDR does not retain the time if the battery is disconnected.
 
I am also interpreting this to mean that there are codes or code generators out there someplace for the older versions of the firmware.  As I predicted in post #9, it is not going to be possible to stop people from unlocking/copying/modifying the firmware.  I really wish George and company would put their efforts into making this a great platform instead of playing a game with the hackers.
 
George (rx9cim) does say that the new firmware should not pose any problem for people who have already registered a previous firmware.
 
Please don't ask me how to hack the codes or where to find them.  I don't know how to hack the codes, and I am not going to look for them on the internet.
 
To be honest, It is not worth the effort for this radio.  It is easier to buy a Raspberry Pi and a USB SDR stick and install Gqx for Raspberry OS.  You then have a more flexible and expandable portable platform that is fully (or at least mostly) open source.
 
In fact, I was considering building a table radio around another Malachite SDR, but even before this latest firmware shenanigans (I hope shenanigans translates to Russian -- I do know a stronger Russian term, if needed), I had already decided on going with a Raspberry Pi 3 and a USB SDR stick. It would give me Shortwave, aircraft, and everything else I can do on a Malachite SDR, but it would also be a media player and Internet Radio player. Adding things like ADS-B (aircraft location) should also be possible.
 
Back to top
 
 

Mobile Linux ?
Got That!
WWW   IP Logged
Administrator
Forum Administrator
*****


Administrator

Posts: 103
Re: Malachite DSP - SDR  Radio Receiver
Reply #16 - Apr 7th, 2021, 1:32pm
 
Here are the change log notes for 1.10b and 1.10c.  Note that 1.10c is "Under Development", and not yet available on the Yandex Disk site.
The 1.10c change log is translated by Yandex Translate.
 
 
1.10b:
 
- fixed error in the S-meter readings for frequencies above 30MHz;
 
- the panorama scale injection has been changed - now instead of x1, x2, x4, 160kHz, 80kHz, 40kHz are shown;
 
- in SSB the 100kHz step is excluded and the 25Hz step is added;
 
- the touchscreen sensitivity is lowered again Smiley;
 
- added synchronous AM detector;
 
- the frequency at which the low-pass filter 500000 is turned on is increased to 540,000, for better suppression of signals above the frequency of 500 kHz;
 
- added Auto Notch filter to the Audio menu;
 
- stretched grunginess adjustment;
 
- added DSB mode - as a kind of SSB;
 
- added CW mode - as a kind of SSB;
 
 


 
 
 
1.10c: (under development)  UPDATE:  As of 08 June 2021 it appears that 1.10C is now available.  FW 1.10B has been moved to the "NOT USE SPECIAL" folder.
 
- improved graphical display of the spectrum
 
- improved algorithm optimization, improved display speed
 
- added the ability to determine the type of activation - by one or three clicks. If PD15 (pin 7 of the RESERVED field) is open, the activation is performed by one click.; if this pin is closed to a common wire, then switching on by three clicks
 
- improved the HARD menu
 
- changed the battery indication - the voltage is indicated on top of the picture
 
- added the ability to control user equipment using a discrete signal-PD14 (pin 8 of the RESERVED field)
 
- a button for switching the audio output has been added to the HARD menu. It duplicates the switching of the audio output. Made at the request of users.
 
- added SAM-U and SAM-L modes
 
Back to top
 
« Last Edit: Jun 8th, 2021, 9:23am by Administrator »  

Mobile Linux ?
Got That!
WWW   IP Logged
Administrator
Forum Administrator
*****


Administrator

Posts: 103
Re: Malachite DSP - SDR  Radio Receiver
Reply #17 - Aug 18th, 2022, 9:08pm
 
You may have noticed that I am not updating this thread much anymore.
 
Firmware development seems to have slowed or stopped, and I've moved on to another (albeit still closed-source) SDR.
 
In fact I have not even loaded the latest FW on my Malachite.
 
There has been some new developments on the Malachite Hardware side.  The Chinese seem to be getting more adventurous with modifications to the original design.  Several units are mounting some of the controls off-board, as I did with the with the power switches in my re-built.
 
A new version that I just found out about seems to mount the Malachite Board as a daughter card on top of a new Back Board that hosts the encoders, switches and connectors.  This model includes round stereo speakers on either side of the display, two knobs on top of the unit, and usually seems to come in a blue anodized case. It is sold as a "Malachite DSP SDR V4".
 
A similar but different design has narrow speakers on either side of the display and is usually black.  This version (also referred to as "V4 Version") has two small thumb-wheel knobs on the right side.
 
Both of the above models also include a actual power (battery disconnect) switch like I implemented on mine.
 
Another unit that has been around for a while, essentially uses a printed circuit board for the front and rear, and has a single speaker on the left like mine.  It also moves some of the controls to a separate side mounted board.
 
The versions above all include shielding around the RF portions of the board.  I strongly recommend against buying any version that does not clearly show that it includes these shields.
 
So what did I move on to?  Please see my thread on the Ailunce HS2/Radioddity QR20/Q900 SDR Transceiver.
Back to top
 
 

Mobile Linux ?
Got That!
WWW   IP Logged
Pages: 1 2