Astro Saber circuit / block diagram

[baz]

Does anyone have a link to Astro Saber circuit / block diagram (handset)?

Particularly: basic difference to a "standard analogue" GP300. I assume TDMA but does Astro Saber go so far as a real basband to IF to RF? Is it handled by the DSP or an ASIC etc.

Any help greatly appreciated.

[Hightower]

The AstroSaber block diagram is in the service manual (basic and detailed manuals).

I'm not a lawyer (but I did sleep at a Holiday Inn Express recently)
Because of copyright issues, it would be illegal to copy the block diagram and post it on the net.

Ebay has these service manuals for around $20. If your going to be playing with these radios, the service manuals can be a valuable source of information and would contain the information your looking for.

Enjoy your ASI - wonderfull radio!

Commissioner Gordon

[baz]

Hi

thanks!

I already had bought the service manual for GP300 series from Motorola and it had very little in the way of circuit diagrams so before doing the same for Astro - I wanted to find out if it was elsewhere.

understood and all the best

Baz

[baz]

Well I bought the basic and detailed service manual.....and neither seem to have a block diagram or circuit diagram of the astro saber digital mode of operation.

All I would like to know is how the digital radio basically works compared to a normal analogue radio.

I'd appreciate it if someone could just write even a few sentences like "audio comes in, goes though a codec first (?) gets converted to digital (bit rate/kHz?) then it digitally modulates a carrier (? in what way) etc.

best

baz