I remember the good old day's when all you had to do is go buy a 5 dollar crystal from Radio Shack and plug it into your scanner ...
I had a digital trunking (receive only) scanner a long time ago, I was not smart enough to program it nor did I know the frequencies to program in.
A buddy who was a city fire department employee, kept it up to date for me, until he could not get the police freaks anymore ...
Now I use this but as stated, I can not hear the car transmissions in my city, nor does it track the laptop traffic.
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some of the old radios (Tram, for example) often had a sliding frequncy adjustment (for sideband precise tuning) that could be modified.
the last guy i hung out with that used sideband had a laptop hooked up to his radio and the signal would go over the internet
i was like, 'why even have an antenna then?'
especially with 10m, when they only have to reach a repeater to get range
it was much more fun and educational to use 11m, because technically you can talk all over the world on the (then 5) 4 watts you are allowed
remember that the law says 4 watts, but that is at dead key without any modulation.
you are also allowed a certain amount of deviation in power due to meter inaccuracy and other reasons
i have an older CB that deadkeys about 4.25 w (as low as it will go) but will swing to 19w when you get 100% modulation
clean and loud, lol
Cobra 77x, circa 1977, one of the first 40 channel solid state radios for 11m
even has metal shielding around some of the adjustments inside it
i use an old full size VHS camera power suppy that i mounted right to the top of it and use it for a base station instead of a mobile