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display delete?
2
I'm a bit too lazy to pull out the soldering iron, so I'll ask: Will the SA firmware run correctly if it doesn't see the display and touch input? I'm thinking about flying one under a hex-copter and every gram counts. Thanks! Brent AB1LF
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New FW release: Added frequency grid indicator
10
New FW release Version V1.0-86 Changes: - Added a frequency per division indicator at the bottom - Increased the minimum number of frequency grid lines to be shown
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Official or Unofficial sellers on Amazon ?
4
Hi All, These have been listed on Amazon UK. https://www.amazon.co.uk/Riiai-Spectrum-Analyzer-Resistive-Control/dp/B08GPDZJDT/ref=rtpb_1/257-9134227-6605166?_encoding=UTF8&pd_rd_i=B08GPDZJDT&pd_rd_r=adc01a9e-6ae6-4930-8403-752486b3fddf&pd_rd_w=xEdkG&pd_rd_wg=oUwlE&pf_rd_p=efeabfe0-1c83-4a3f-b509-7abd424941d1&pf_rd_r=Z5ZGCSCSSGDAVCKY5QJ1&psc=1&refRID=Z5ZGCSCSSGDAVCKY5QJ1 Sold by Elikliv-EU and Elikliv-EU among others. Are these a new 'official' supplier or simply a reseller ? Regards, Martin
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Noise factor measurement: Can someone with knowledge review this wiki page?
6
I added a wiki page on noise factor measurement but as I am no measurement expert I could make some stupid mistakes. Can someone with the right knowledge (on how to measure noise of resistors and the NF of an amplifier) please review this wiki page and provide some feedback? https://tinysa.org/wiki/pmwiki.php?n=Main.NoiseFactor
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Hi All, I thought you may be interested to see the Tiny SA in action when trying to trace some RF interference from a Data over Power line adaptor. The Yellow trace shows the peak hold trace with notches in the data signal on Amateur bands clearly visible, the Red trace shows a real time scan, with the strong data bursts peaking >25dB above the ambient noise floor. By connecting the Tiny SA to a small tuned loop antenna and walking around the local streets, I have been able to identify the property that is radiating this noise. The next step is to try and get the Data over Power line adaptor removed. Regards, Martin
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Erik, I noticed the following issue this morning: 1. 10MHz calibrator output connected to LOW input. 2. Marker->Center places the 10MHz carrier in the center of the display. 3. Frequency->Span 10MHz. Expected 10MHz carrier to remain in the center of the display with 5 divisions on either side. Instead observed the following: 4. Another Marker->Center resulted in the expected display. Is the above actually intentional behavior for the tinySA? - Herb
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HowTo for building the tinySA firmware under linux (ubuntu lts 20.04)
7
#firmware-build
Hi Erik, do you have some tips for building the tinySA Firmware by myself under Kubuntu LTS 20.04? I prepared everything as described under thwec readme in your github.com/erikkaashoek/tinySA/readme.md file... But after running make I got the following error: ... Compiling nvic.c Compiling hal_lld.c Compiling stm32_dma.c Compiling hal_st_lld.c Compiling hal_adc_lld.c Compiling hal_dac_lld.c Compiling hal_ext_lld.c Compiling hal_ext_lld_isr.c Compiling hal_pal_lld.c Compiling hal_spi_lld.c Compiling hal_gpt_lld.c Compiling hal_usb_lld.c In file included from ChibiOS/os/rt/include/ch.h:82, from ChibiOS/os/hal/osal/rt/osal.h:32, from ChibiOS/os/hal/include/hal.h:28, from ChibiOS/os/hal/ports/STM32/LLD/USBv1/hal_usb_lld.c:27: ChibiOS/os/hal/ports/STM32/LLD/USBv1/hal_usb_lld.c: In function 'usb_lld_init_endpoint': ChibiOS/os/rt/include/chdebug.h:129:6: warning: this statement may fall through [-Wimplicit-fallthrough=] if (CH_DBG_ENABLE_ASSERTS != FALSE) { \ ^ ChibiOS/os/hal/osal/rt/osal.h:241:34: note: in expansion of macro 'chDbgAssert' #define osalDbgAssert(c, remark) chDbgAssert(c, remark) ^~~~~~~~~~~ ChibiOS/os/hal/ports/STM32/LLD/USBv1/hal_usb_lld.c:588:5: note: in expansion of macro 'osalDbgAssert' osalDbgAssert(false, "isochronous support disabled"); ^~~~~~~~~~~~~ ChibiOS/os/hal/ports/STM32/LLD/USBv1/hal_usb_lld.c:590:3: note: here case USB_EP_MODE_TYPE_BULK: ^~~~ Compiling board.c Compiling chprintf.c Compiling memstreams.c Compiling nullstreams.c Compiling usbcfg.c Compiling main.c In file included from main.c:934: sa_core.c:20:10: fatal error: SI4432.h: No such file or directory #include "SI4432.h" // comment out for simulation ^~~~~~~~~~ compilation terminated. make: *** [ChibiOS/os/common/startup/ARMCMx/compilers/GCC/rules.mk:216: build/obj/main.o] Fehler 1 Thank you in advance for your help. Chris
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Frequency graticule - scaling
3
#features
Hi Erik, The Tiny SA is great, but I'm having trouble when quickly looking at the graticule in order to determine the approximate frequency of a spike on the horizontal axis. I find that the existing frequency graticule is a bit too coarse for my liking, and would really prefer a scale of ten graticule lines rather than the existing five, as I find it easier to divide by ten :-) I realise that ten lines may make the small display seem rather crowded, but I wondered if at some point it would be possible to add an option to change the frequency graticule scale, maybe with a thicker line to indicate the centre of the screen ? I don't know if I'm alone in requesting this, but maybe others could comment if they think it would be worthwhile. Regards, Martin
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Hi Erik, Still having fun with my new Tiny SA. My main reason for purchasing to was to help locate RF noise sources, especially from Switched Mode Power Supplies. I have a question relating to the expected performance below 1.5MHz. I noticed that when operating the Tiny SA in Auto agc mode, there was a distinct series of amplitude steps in the noise floor, that is very apparent below 1.5MHz when there is no input connected. Tuning the agc off (no tick in box) produces this trace, which is flat as a result of the overall reduction in sensitivity. Turning the agc on (tick in box) produces this trace, which is probably the most realistic of the three, and makes operation down to about 600KHz possible. When the input is connected it is possible in this mode to see signals down to 100KHz, but they are masked by the higher level noise floor. Is this behaviour as expected ? Regards, Martin
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Call sing output in output mode?
2
Someone asked if the tinySA could output a small text in morse code so the output modes can be connected to an antenna (if the output is legally clean enough) I would imagine you have to set the text to be output through the console mode (into flash) and the tinySA would then output it as one of the forms of modulation. Can someone comment on this idea? Does it make sense? What would be the legal requirements for such a transmission? If this does make sense, can someone point me an example implementation in C?
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New FW release: Added Measure functions
3
New FW released Version V1.0-84 Changes: - Added 4 measurement functions: SNR, -6dB width, AM and FM See the video demonstrating these new options starting here: https://youtu.be/ioM0Si3qI-Y?t=626 As I am no measurement expert I made some liberal use of names. SNR can be used to measure the difference between a signal and the noise floor -6dB width can be used to measure the width of an occupied frequency band. AM does some careful AGC/LNA setting optimization to help observe AM modulation FM does a quick setting to observe FM modulation. In case you have suggestions on how to improve these function or for other measurement functions feel free to provide feedback.
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New video: Measure Menu
A video demonstrating the tinySA Measure Menu. The video also explains some of the limitations of the tinySA and, if possible, how to work around these limitations. https://www.youtube.com/watch?v=ioM0Si3qI-Y Some of the measure menu options demonstrated are new and will be available in a next FW update
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Hi, I just received a new Tiny SA from Maggie. Recorded the config settings Updated the Firmware to 1.0-82 Did a clear config Did a reset Checked config settings and all were are before. Did a low and high band calibration Did a self test, but this stopped at step 7 with a Stopband Critical. What to try next ? Regards, Martin
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Some people want to know if it is possible to use the tinySA as a kind of band scope. Using the LNA as explained on the wiki and a half size G5RV I get this
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Self test 3,4,7,10 failures
7
#tinysa
#firmware-build
I have self test failures 3,4,7,10 out-of-the-box — unit was purchased in June, 2020 The tinySa can decode the FM band nicely in LO band but I can not get the USB port to stay up in DFU mode. 30 MHz calibration signal from HP141 looks good. Bad hardware? Bad config? -- 73, Bernie, VE3FWF (most typos in this message were generated by highly sophisticated auto-correction software)
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OneOfEleven github pages dissapeared?
2
From a couple of days I'm getting error 404 when trying to access OneOfEleven repositories for the nanoVNA programs. Have they been moved or deleted? Regards, Ignacio EB4APL -- El software de antivirus Avast ha analizado este correo electrónico en busca de virus. https://www.avast.com/antivirus
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New Video: Marker Menu
A short video explaining the Marker Menu and how to position the markers https://www.youtube.com/watch?v=QU-qeeSiIPk
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New video: Level menu
6
A not so short video demonstrating the many possibilities of the level menu I hope these videos help understand how to use the tinySA
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R&L Electronics Inventory: Come and Gone
3
Its being reported on other groups that R&L Electronics in the US received a 100 each of both the tinySA and SAA-2N. That's the good news. The bad new is that both devices were sold out not soon after delivery. Either there were a lot of pre-orders or some one did a large bulk purchase. Glad for Erik (tinySA) and hugen (tinySA/SAA-2N) that the products are selling so well. Maybe it will entice R&L to place a larger order on the next shipment. - Herb
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New video: Frequency Menu
A short video demonstrating the Frequency menu of the tinySA
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Image Name
Sat 8:39am
Sat 8:39am