I wouldn't get any of the above - I'd buy a used Watkins Johnson (which won't cost you much, or any more).
Use it as your main rf front end and do all the DeMod work from the IF output (digitise the IF with an A/D converter to process through your pc - there are loads of software programs to accomodate all types of com's).
The point is, this approach gives you:
- a top class/mil spec rf front end (way way ahead better than ANY consumer type receiver/scanner)
- provides a more or less future proof receiver
- enables you to get started on the digital route.
Why?
Within the next 5 - 10 years (10 years at very most I would think) the demand on rf bandwidth is going to result in 90% plus of all rf com's going digital.
The only way I see amatures been able to keep up is having as good an rf front end as they can afford (which is going to mean buying used mil spec receivers/tuners I suspect), and using them as a "feed" for a dedicated pc, where all processing is done, and on which one builds up a library of DeMod software patches.
The sooner you set youself up to digitise all received rf, and deal with digitised rf, the greater and better your coverage ability is going to be.
To get a basic idea of going down the digital route offers you - take a look at Wavecom (
WAVECOM, the reference in data decoding).
....... and if anyone is seriously interested, I have both a Wavecom 41 & 51 for sale (both in as new condition, with full software and working 100%) - serious enquries only please guys - at about 25% - 30% of what they cost new (I,m now using a 61LAN). There isn't a standalone receiver on the market that comes anywhere near what this hardware/software combination offers amature enthusiasts