Chirp Software Free Download

Hi there, @FixMacs! It sounds like you are doing everything correctly here. When toggling the Open/ Closed Alerts toggles, please also check the Chirp Tones option to ensure a tone is selected. I recommend also going to the Ring app Menu > Settings > Modes to check the chirp options for each mode will allow chirps to be played as intended. I hope this helps!

I checked the Chirp Tone. Enabled. I checked the Mode Settings. Chirps are Enabled in all modes. Nothing has been changed since June when I posted this question. No amount of toggling the Chirp When Closed will work. When the contact sensor was initialized, set up, the Chirp When Open was set and that is working. The contact will chirp when open but not chirp when closed. This seems to be some kind of bug or corrupted device.

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Please note: This will remove device settings such as chirps and volume adjustments and reset the device back to the original default settings. Thus, you will want to reconfigure your Keypad settings before testing. Please also plug the Keypad into power during tests.

Is it possible to toggle which sensors cause a chirp from the keypad? Even when the system is set to disarmed, any alarm will trigger they keypad chirp. I would like to play chirps from the keypad in home/away mode, but at this point I have to disable the feature entirely since it will chirp in disarmed mode.

These options will help you enable/ disable chirps by mode or on the Keypad altogether. As for your other Alarm devices, you can choose the chirp tones used and enable/ disable chirps per device. If this answer did not provide the exact solution you are looking for, feel free to add this request on our Feature Request Board. This way other neighbors can share their interest in one place, that we can organize and share with our teams here.

I have confusion in selecting a few parameters value as my chirp on time is 33.33 microseconds and total chirp time is 83.33 microseconds, from which it is obvious that the duty cycle of the chirp is less than 50%. I have taken slope (S) 60e12 (Hz/sec) to get the required bandwidth of 2GHz in 33.33 microseconds. Now for the 1843 device when I want to generate the same chirp then the ramp start and ADC start time are let's say 10 microseconds and then what should be the ADC and ramp stop time? Should the ADC stop time is equal to chirp on time i.e 33.33 microseconds and ramp stop time is 83.33 microseconds. In that case can you please explain to me the analogy. Then in the end I need to add idle time?

Since there are 128 chirps per frame, the total active chirping time (idle time + ramp end time) = 83.3333 us * 128 = 10.666 ms. Since your frame periodicity is 100 ms, you would have 89.333 ms of interframe time before the next frame begins.

You can modify the 4 values that I mentioned earlier to fit your particular application. But your question of duty cycling is a ratio of the active chirping time to the frame periodicity. The active chirping time is the product of the number of chirps per frame with the sum of the idle time and ramp end time per chirp.

You can set the ADC start time to work within the 33.333 us of the active chirp. You just need to set the sampling rate at a rate where you can achieve the desired number of ADC samples before the ramp end time.

4. Inmmwave studio in the sensor configuration tab, in Frame and Chirp Tab, what will be the value of the different parameters, for example, start chirp T, end chirp TX, a number of chirps loop, periodicity, etc.

Note: I want to capture the single transmitter and single receiver raw ADC data For which I need the chirp configuration, as, during the calculation, I got to know that with the 60 MHz/us slope rate, I will not get the 100 m maximum distance, so I have adjusted my slope accordingly.

The number of ADC samples is a function of how many range bins you want for each chirp. It is not a simple ramp end time/sampling time calculation. You would preferably like to choose an ADC sample number that is a power of 2 (64, 128, 256, etc.) as this will simply FFT calculations and avoid extra zero padding. The maximum number of ADC samples is set by the BSS firmware, found here:

Similarly, the number of chirps required per frame is a function of how many Doppler bins you want per frame. It is also not a simple frame duration/(idle time + ramp end time) calculation. The number of chirps per frame determines how many velocity bins you have in a given frame.

So in both cases, the number of ADC samples per chirp and number of chirps per frame are not simple formulas/calculations. They are determined by the use case of the device and often involve trade-offs between number of range bins, number of Doppler bins, range resolution, velocity resolution, etc.

As stated in my previous post: Since there are 128 chirps per frame, the total active chirping time (idle time + ramp end time) = 83.3333 us * 128 = 10.666 ms. Since your frame periodicity is 100 ms, you would have 89.333 ms of interframe time before the next frame begins. At 10.6666 ms, the 128 chirps have all completed and there are 89.3333 ms of time where the radar is not actively chirping. This time is needed for interframe processing (Doppler FFT, CFAR, AOA, additional algorithms).

You would set the profile values (start frequency, frequency slope, etc.) in the profile section. Then you would create one chirp (chirp 0) in the chirp section. You can have one, two, or three TX antennas enabled for this chirp. That is up to you, but for the purposes of this exercise, just enable one TX.

Then in the frame section, both your start chirp and end chirp would be 0, since you only have one unique chirp. Then you would specify the number of chirp loops to 128 so you would have 128 chirps in the frame, all based on chirp 0. Then you would set the frame periodicity to 100 ms since that is the periodicity you noted in your initial post. And then you can set the number of frames to your desired number of frames. If you set this value to 0, the sensor will chirp indefinitely until you press the "Stop Frame" button in mmWave Studio.

So accordingly, I don't want to compromise with the range resolution and doppler resolution. But in my simulation case, I have taken the slope 60 MHz/uS and sampling frequency 40MHz, but now with this device, the sampling frequency is 12.5 MHz, so for the same range resolution I need to change the slope and chirp duration, as sampling frequency also decides the maximum range (dmax=Sampling frequecy*C/2*slope); so from here

4. For the of interframe time, I have small doubt that where I will use it during the chirp configuration, is it automatically taken care of according to the periodicity? Is there a minimum interframe time is required?

Now let's say you have 128 chirps per frame, you radar cube size would be over 680 KB, approaching 75% of the shared L3 memory. This does not leave much space for subsequent calculations. If you added just one additional RX antenna, the 1D FFT radar cube would not fit into the shared L3 memory because the number of ADC samples per chirp is so high.

Can you please suggest to me that what can be the maximum number of chirp loop we can take (in mmwave studio there are only 255 chirp options available) but in the related document, I have read that we can take 512 chirps per frame. If I can take 512 chirps per frame then please tell me, how?

In that case, if I want to increase the maximum velocity range (as we have a limited number of chirp per frame, maximum velocity=number of chirp per frame*Doppler resolution*wavelength*0.5, where Doppler resolution =1/frame time) so what are the possible option, If I don't want to change the maximum range and range resolution and doppler resolution.

Now when you go to configure the frame, you would specify the start chirp as chirp 1 and the end chirp as chirp 3. And then if you were to specify the number of chirp loops at 128, you would have a total of 3 * 128 = 384 total chirps per frame. Increasing the number of chirp loops would result in more total chirps per frame. 172 chirp loops, for example, would give you 516 chirps per frame based on the example above.

You can create up to 512 unique chirp definitions and then have up to 256 chirp loops per frame. So based on this information, you can easily have 512 chirps per frame. But again, it all comes back to how many ADC samples per chirp are specified and if the resulting 1D FFT radar cube will fit into the shared L3 memory. There are always trade-offs when it comes to designing the chirps for your application.

This leads to the final part of your last post. You will have to make design trade-offs if you want to increase the maximum velocity. Please refer to Table 1 in this white paper on programming chirp parameters to see how different considerations affect the chirp design. In most cases, having a larger maximum velocity comes at the cost of a decreased bandwidth in each chirp. A lower bandwidth, in turns, results in a decreased range resolution. You will have to make a decision based on your application on which chirp parameters have a higher priority.

I have encounter my first cache that makes use of a Chirp Wireless Beacon. I have a Garmin eTtrex 30x. I have turned chirp searching on, when I'm at the posted coordinates, the Garmin does not react in any way, what should I be looking for? I can't find any guidance on the web. I'm hoping/asking for help here. Thanks.

I got a *FREE!!!* Garmin Montana 680t from a geocacher who wasn't using it anymore, and the first cache I tried was a local chirp cache. And it didn't pick up anything! Bummer! I actually found the cache and signed the log, but I'm waiting to log it as found until I can get the chirp to work (or never, whichever is sooner). e24fc04721