i wasnt sure where to post this, but i was wondering how to transmit using a scanner, or if you can at all...
Turn your scanner on and it will transmit. Most modern receivers are also transmitters. It's called a local oscillator
Not all 2.4GHz phones are digital. I've never heard an analog 2.4GHz phone scrambled nor can I really recall a 900MHz analog one scrambled either. I guess the phone manufacturers figured that not that many people had scanners that could hear those frequencies. I still here 46MHz ones using voice inversion for scrambling. There is actually a freeware sound card program you can use to decode these. I've used it before on a UHF police frequency who used the same voice inversion scrambling technology and it worked quite well.
If you want to pick up stuff all over town, get your antenna as high as possible. Use as low loss feed line as possible and if you're talking about 900MHz or above, consider a preamplifier. A 6 meter ham beam antenna would work quite well for 46MHz phones, a cellular yagi or one that you build cut for 900MHz would work for those phones, and any of those home made WiFi antennas you see should work good for 2.4GHz. I've sat on top of a hill with a 18" satellite dish antenna and was able to pick up phones quite far away on 2.4GHz.
The VX7r mod is very easy. It involves solder jumper pads underneath the battery. An 8 year old could manage it. No screwdriver required.
