So you gave up trying to use your 100MHz scope? :->
I do hope you have the probes to suit (a 1GHz scope goes not nessecarily come with suitable probes) and know how to properly probe a
1GHz signal. Oh, and if you use a 1GHz bandwidth scope to measure a 1GHz signal, it's going to be 3dB down in amplitude.I'm sure there are many rental companies around that will rent you such a scope, there are here in Australia anyway.
Dave :)