A question about telemetry receivers: Programmable Bit Synchronizer

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senmeis
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Hi,

This receiver, https://semco.com/wp-content/uploads/R300_Series.pdf, shall be used to receive telemetry data from launch vehicles. As far as I understand it analyzes and processes RF telemetry signals and outputs telemetry data over Ethernet (TM-over-IP). I just can’t understand what „PROGRAMMABLE BIT SYNCHRONIZER“ refers to because under it there is a section „Input and Output Codes“. Can anyone explain it for me?
 

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If you look up NRZ and Bi-Phase (for example), you'll see the differences between them. Those differences are what a programmable bit sync needs to adjust to.
 
It is well known patterns such as Bi-Phase are suitable for bit synchronization, but that’s not the point. As mentioned the input = RF signal, the output = Ethernet. Why is there another pair of input/output (NRZ-L/M/S, Bi-Phase-L/M/S, DM-M/S, MDM-M/S and RNRZL-L)?
 
Not 'Another' input - just more detail on the input. In order for a bit sync to work, it needs to 'know' what encoding method is in use. The paragraph that you asked about is just telling you what the bit sync is capable of locking up to.
 
OK, I see these codes are transformed into input RF waveforms. What about these codes in output? I suppose there are separate outputs using these codes other than Ethernet, right?
 
senmeis said:
OK, I see these codes are transformed into input RF waveforms. What about these codes in output? I suppose there are separate outputs using these codes other than Ethernet, right?
Which output? Bit synch/byte synch/etc. parts of the RF waveform are stripped by the receiver circuitry and only the data is output (with Ethernet framing, not the original synch waveforms from the RF transmission).

Impressive receiver capabilities, BTW. How much does that instrument sell for?
 
berkeman said:
BTW. How much does that instrument sell for?
If you have to ask, you can't afford it.

The Semco R300 Series telemetry receivers do not have a publicly listed retail price, as they are specialised enterprise and defence hardware, sold exclusively through custom quotes. You can request exact pricing or arrange an evaluation by calling their customer service line at +1 760-727-7800.