Locked
Re: Noise Generator Function
#features
Yes, but the noise quality as you increase frequency will be poor. In software (on MPU) the way to get noise is implement pseudo random? sequence for rate and amplitude but?you do not get white
By
ajparent1/kb1gmx
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#20188
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Locked
Re: Noise Generator Function
#features
I have a similar noise source and the easy way to lower its output is an attenuator 20-30db should be adequate.? Saves digging into the circuit. -- Allison -----------------------------------------
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ajparent1/kb1gmx
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#20187
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USB connection to TinySA fails using QtTinySA on Pi
I'm trying to use a Pi 4B to view/control TinySA. I've sucessfully installed QtTinySA on a clean image and it works just fine with a TinySA Ultra+ I've had a TinySA in my bag as a "don't leave home
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Tweeter103
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#20186
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Locked
Re: Noise Generator Function
#features
Good afternoon. I am aware of this generator. I have three of them, all slightly upgraded as the noise is very dirty. the latter has everything done to produce pure white noise at least on HF . I also
By
ats52@...
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#20185
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Locked
Re: Noise Generator Function
#features
Be careful with those noise sources from e.g. BG7TBL.? Mine puts out +8dBm of wideband noise, which is enough to compress or even possibly damage a sensitive input like on the TinySA. If you compress
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Donald S Brant Jr
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#20184
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Locked
Re: Noise Generator Function
#features
Build your own. A Zener right at the breakdown is extremely noisy. Follow that with a couple of MMICs and a pad or two for impedance stabilization, and you're there. Dave - W?LEV wrote: -- *Dave -
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W0LEV
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#20183
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Locked
Noise Generator Function
#features
Is it possible to add a noise Generator function to TinySA?
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ats52@...
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#20182
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Re: Best settings for impulsive wide-band 6m RFI hunting
And... use the widest bandwidth that allows sufficient S/N. Dave - W?LEV <tempoliberoesport@...> wrote: -- *Dave - W?LEV*
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W0LEV
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#20181
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Re: #tinysa #ultra Leveling TinySA Ultra with damaged LNA
#tinysa
#ultra
As i could not source ZK10D, i have bodged BGA2817 in my ZS-407. It now passes self-test and calibration to 7.3Ghz. I dont have enough experience using SA to confirm it works perfectly, but i'm sure
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morpheus
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#20180
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Re: Best settings for impulsive wide-band 6m RFI hunting
*Trace -> Calc Off -> Max Hold* This is how you capture quick pulses. Max Hold captures the highest peak and continues to display it until a new higher peak is detected. You can refresh it by turning
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Adam Coate
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#20179
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Best settings for impulsive wide-band 6m RFI hunting
Hi. What are the best setting to quickly hunt an impulsive wide-band noise in 6m band? My current settings in my TinySA Ultra: - *FREQUENCY* : 49 - 55 MHz (a little more of the detected noise) -
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Andrea I2UEA
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#20178
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Re: No pulse on CAL when freq sweeping on signal generator
#tinysa
#ultra
Though that is still enough to detune some Valve circuit IFTs. Generally useful,
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Mike EI9FEB
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#20177
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Re: No pulse on CAL when freq sweeping on signal generator
#tinysa
#ultra
Using a standard 10:1 CRO probe connected via a high voltage DC Block (min 200V) to the 50 ohm SA input will present Low C / Hi Z to the DUT and also gives about 60dB attenuation to the SA input.
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Bob Ecclestone
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#20176
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Re: What to do when a selftest fails
Using the supplied antenna alone makes it susceptible to static electricity if anything brushes the antenna. Try an attenuator inline as this will act as a DC bleed for static as well as reducing
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Bob Ecclestone
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#20175
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Re: What to do when a selftest fails
Some drones run 1W, probably not an issue from the drone but be aware of the output from the controller. [email protected]> wrote:
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VK3DPM Dave
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#20174
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Re: No pulse on CAL when freq sweeping on signal generator
#tinysa
#ultra
As soon as I got my S/H HP141T SA years ago I made a noise source using a zener diode, high pass filter and MAR6 wide band amp on stripboard. I've not tried it yet with IFTs and the TinySA basic, or
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Mike EI9FEB
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#20173
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Re: What to do when a selftest fails
I'll buy another one, let's hope 30db attenuator will help it survive. I was looking through regulations, the wireless microphones are limited to 50mW, but wi-fi could go up to 1W, the same goes for
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kalfarpetr@...
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#20172
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Re: Turn off display
That's a broken concept. How does a mouse, USB memory stick, USB SD Card reader or many other things work? Only a USB client/destination port, never a "host" port should be unpowered.
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Mike EI9FEB
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#20171
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Re: What to do when a selftest fails
Something is VERY wrong with the device. This could be due to either too high input level, like having the antenna close to a transmitter antenna for a prolonged time, or because of severe static
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Erik Kaashoek
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#20170
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Re: What to do when a selftest fails
I had the same problem. RF switch blown. After replacing the chip problem solved. https://youtu.be/VSbuKqLafbo?si=USzZcniZW2GarDD0
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pa3jem@...
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#20169
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