SASER SAS24P3L SDR Review

CSWS: 005: SASER

Automatic mode of SASER SAS24P3L software functions with the use of event generator, consisting of two blocks (each with 64-bit quantization), which gives 128-bit key encryption. SASER SAS24P3L counts intermediate frequency by the formula b * TR, where b – is a multiplier of original bus and TR – is a discretization frequency of original bus. Because of this, the device has secondary bus with changeable pass band from 16,97 kHz to 44,1 kHz. Multiplier of original bus, which is used in SASER SAS24P3L software to exit on transmission frequency of secondary bus, is also a key from which depends all of the ongoing values of event generator. The device architecture depends from multiplier, and so it is responsible for signal chain inside SASER SAS24P3L software. Multiplier of original bus changes the combination of three splitters, which reminds the alphanumeric key lock with three variables. If the combination is unknown then lock is closed and it is dimed which components of the signal pass in waveshaping modules and which in waveguide modules. For automatic mode of SASER SAS24P3L it is important, that the combination remains unknown. In automatic mode there are 16 combinations of three variables, which match 16 profiles of 8192-node continuous-phase frequency-shift keying modulation (8192-CPFSK).

Modulation parameter z – is a multiplier of the oversampling bus. Oversampling bus achieved using x2048 sample rate conversion with oversampling bus multiplier z = 4. Oversampling bus values coincide with VHF radio band and range from 139 MHz to 361 MHz. The FM deviation parameter equals 8192 Hz, from which depends the pass band of SASER SAS24P3L original bus, which has a limit of 5512,5 Hz. Spectrum returned from the oversampling bus in the pass band of SASER SAS24P3L original bus contains 24 equally spaced translation channels. In relation to oversampling bus frequencies, it is a narrow band of composite signal.

Setting splitters to the lowest values, this composite signal overflow with VLF translation, summing 18 stations of positive and negative odd harmonics of FM spectrum. Secondary bus structured in relation to simple two-oscillator frequency modulation. Channels created using bandpass filters in the frequency positions of FM harmonics are used for their modulation with 8192-CPFSK. Negative bands turn around 0 Hz and form a row together with positive bands in accordance to arithmetic progression. For positive signal values on the left master channel the translation goes to oversampling bus. Modulation created this way opens an ability of simultaneous translation on the secondary bus in VLF spectrum and on the oversampling bus in VHF spectrum. Changing phase values of FM signal components, the translation channels change their position in the secondary bus.

SASER SAS24P3L software can realize full-duplex signal transmission from VLF spectrum into VHF spectrum and vice versa, using the SLF band carrier. SLF band carrier makes possible very long signal propagation. Sound waves of the same frequency has the small wavelength comparing to radio frequencies for which huge radiating contours named antennas are used. SASER SAS24P3L uses radio to sound wave duality, which produces radio wave and sound wave of the same frequency on the channel pass band. The transmission principle of SASER SAS24P3L allows translating the signal in to VHF band without the use of constructive elements needed for radio translation by employing radio signal-chain virtualization up to transmission point, meaning all-in-one software. The tonal signal you hear, before entering the regeneration network by pressing the Ether button, is the sum of 18 stations transmitting in VLF band, each with its own phase and frequency position. The signal of each station is synthesized using FM harmonics as a material for further modulation. This gives an uninterruptable signal transmission of original bus, which is a bottom for secondary and oversampling buses. The sum of 18 stations is a carrier signal for VHF Ether.

The signal of stations received using time-space folding fractal antenna FF8®, which converts time-domain FM signal into the frequency domain by performing a transform similar to FFT. Left master channel used as a detector for positive and negative signal phases. By employing such modulation, SASER SAS24P3L transmits in VLF spectrum on the negative phase and VHF spectrum on the positive phase. FM signal components enhanced up to self-oscillation and modulated using 8192-CPFSK profiles, which allow SASER SAS24P3L to synthesize the hitless signal translations on each band. Changing the phase of bands by performing with Wavelength control allows receiving different signal on each band of original bus. Minimal channel deviation is used of up to several tens of Hz. There are 12 such bands for positive and negative FM harmonics, which create a translation with 24 bands of signal. Modulation frequency is also a channel separation bandwidth of the arithmetic progression.

Cycle reproduction of VLF radio stations signal allows changing of the carrier wave tempo. This characteristic merges SASER SAS24P3L with musical sequencers, but makes a distinction from other SDR. When you perform with wavelength control VLF station signal occupies all the frequency-phase positions up to the next switch. This is another distinction from SDR, where you can only tune in to the specified frequencies and switching even a tenth of Hz can result in loss of the translation. This positive quality allows translating the signal in frequency spaces rather at specified frequency.

SASER SAS24P3L has four translation bands: SLF, ULF, VLF and VHF

Composite signal returned on the original bus from VHF ether spans across 24 channels of translation in real-time. In VHF this 5 kHz band is a tiny piece of the spectrum because the VHF counts MHz frequencies and has x8192 smaller wavelength than VLF signal.

SASER SAS24P3L has four translation levels: SLF and ULF translation on channels of original bus, VLF translation on secondary bus and VHF translation on the oversampling bus. To detect such translation you need the special software or board, which automatically detects Morse code translations. I use the CW Decoder, because it is free and can switch the decoding bands in relation to signal output. Using this software you can assure that almost all of the translations happens in VHF band with wavelength of up to several meters (which recipients declare in their translations). SASER SAS24P3L translates this signal on the bands of original bus. The detection happens when regeneration network is on by pressing the Ether button. Composite signal returned on the original bus from VHF ether spans across 24 channels of translation in real-time. In VHF this 5 kHz band is a tiny piece of the spectrum because the VHF counts MHz frequencies and has x8192 smaller wavelength than VLF signal. This way all bands of original bus spectrum receive the constant signal. Using this constant signal, you can mark any of 24 bands of SASER SAS24P3L output in CW Decoder software. You can change the speed of such translation, changing the speed of the VLF ether carrier. SASER SAS24P3L permits the time stretching of radio signal in the hearable frequencies band. Ether regeneration on the transmitting frequency creates a fully encoded packet of signal in VHF band for all channels of secondary bus. Original bus is suitable not only for audition of packet channels and for their carrier frequencies but also suitable for their translation in ULF and SLF bands. The carrier wave of each VHF channel is an amateur radio translation made with electric key lock using which the Morse code is entered. SASER SAS24P3L software has a three-channel automatic key lock device with idle translation on negative even bands of FM synthesizer.

Frequency independent time stretching of radio signal is one of the most prominent features of SASER SAS24P3L SDR. The relationship of modulation frequency to center frequency is the multiplier of original bus. Multiplier of original bus is responsible for relation of intermediate frequency to the discretization frequency of original bus. The discretization frequency of original bus is 11,025 kHz. SASER SAS24P3L counts the intermediate frequency by multiplying discretization frequency of original bus on the multiplier of original bus. The original bus has 24 channels, which can be sent to waveguide processor or waveshaping distortion modules. Setting splitters in the lowest position passes all channels to waveshaping modules, which block the output. Channel waveguides take in account the Doppler Effect, which takes place when the delay time changes inside a waveguide resonator. Due to this fine-tuning the waveguides are possible. Signal received in real-time is a sum of harmonics, passing through the band pass filters of each channel. Real-time signal varies in relation to selected phase and signal on left master channel, which creates a feedback loop of 24-th order recursive filter. This way SASER SAS24P3L is a window function with infinite impulse response filter characteristics. You can pass the non-harmonic composite signal with pass band of 5 kHz for its transmission in VLF and VHF bands simultaneously regardless of the distance of VHF frequencies propagation and without a need for high power infrastructure. Signal received using SASER SAS24P3L translates with the propagation distance inherent to VLF waves. This way you can receive VHF signal from different points of Spherical Interaction Network.

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