I'm looking into purchasing some RF test equipment so that I can do some design work at home. My current job doesn't offer any RF design opportunities and I was thinking that this might be my only way to get into the design field (and out of test engineering).
I suggest you consider what is the minimum necessary so that you can put something on your CV that will get past the robots/HRdroids and get the CV into the hands of engineers that influence hiring. Being able to say "I bought and used an expensive piece of test equipment" probably won't!
As an engineer, what I look for in a CV is someone that:
- does more than their job/studies require, because the subject fascinates them
- sets a goal that gets them out of their comfort zone and stretches their capabilites, but which is also a realistic goal. "Make two meals for 10 people" is realistic, "feed the hungry" isn't
- plans how to achieve the goal, given the constraints
- achieves something close to the goal
- can define the choices they made and why they were sensible choices
- can define what worked well, and what didn't
- can define what they would do better next time
Note that nothing there requires great expense. What is does require is realism, determination, imagination, plus an understanding of the
available tools, their limitations, and how to use them to best advantage.
Examples...
I designed and implemented my first computer (6800, TTL, 128bytes RAM) using switches, an analogue voltmeter, and LEDs. Made many mistakes, learned a lot. The interviewers were most impressed.
I built an audio preamp. One (competent) interviewer asked me why I had chosen that particular one to build. I explained what the designer thought were important features and why, he continually probed deeper into my understanding, and finally I admitted that I didn't understand why the designer thought one feature was important. I was offered the job.
Make something that can measure filter responses up 1.5GHz for less than $50 - use an SDR dongle, a noise diode, a little software. Define its limitations. Then work out how to use it as a poor man's TDR.
So, it is worth considering buying something cheap and experimenting with it. That may well be sufficient.
It is also worth speed reading an old Asimov story that shaped my attitudes and is as true today as it was then: "Profession". It is online, in all its GeoCities glory, a
http://www.abelard.org/asimov.php