Looking for some help with Telemetry

[corpuschris]

I just started working with telemetry circuits and could use a bit of advice. Does any one know where I could find more information concerning design and basics?

 

[blueroomelectronics]

Google Telemetry?

 

[corpuschris]

I tried that but that but it gave to broad of a field. I am working on a few telemetry circuits but need a bit more on the fundamentals....

 

[crutschow]

Well, then you need to narrow the field by telling us what signals you are interested in telemetering and for how far?

 

[corpuschris]

Here's what I am looking at.
608MHz-1.5GHz
portable device (battery op)
test standards being applied
The problem isn't necessarily the distance as the signal dropping in and out.

 

[blueroomelectronics]

Are you trying to build this or is it a commercial device?

 

[corpuschris]

Not building but repairing.

 

[blueroomelectronics]

My crystal ball is at the shop. What is the make & model #?

 

[corpuschris]

Sorry about that. It is a model M2601B from philips.

 

[Papabravo]

Here's what I am looking at.
608MHz-1.5GHz
portable device (battery op)
test standards being applied
The problem isn't necessarily the distance as the signal dropping in and out.

At those frequencies you will need some rather sophisticated equipment. Can you stand the expense? I'd start with a Spectrum Analyzer. Transmitter dropout will be incredibly obvious. Probing the receiver will require a scope with some probes that can get into tight spaces.