The only ground you really need in this situation is a ground for the coax shield where it enters your building. Assuming you have modern wiring in your home (grounded outlets) you don't really need to run that ground strap into the shack nor ground all your equipment. I should save this somewhere for cut and pasting but here goes.... There are three main reasons for grounding in a ham shack: - Human safety against shocks from internal equipment shorts. In modern homes this is provided via grounded outlets. If you run vintage rigs with two wire cords you can either swap the power cords for 3 wire cords and bond the green (ground) wire to the rig's chassis or you can run an outboard ground wire from the rig's chassis to the nearest outlet ground. - Grounding coax shields as they enter your building. The NEC requires this. Ideally this is done down at ground level and ideally you'd bond your coax shield directly to your home's AC service point ground. Alternatively you can drive a new ground rod and tie the coax shield(s) to that rod but it also must be bonded back to the AC service ground with a heavy gauge conductor. In many cases entering the home at the AC service entry point and then running coax up to your shack inside your home is a good way to go as it maintains single point grounding to your home. - Adding 'RF Grounds' to your shack for use with certain antennas like shack tuned random wires that need to work against a ground. Being on the second floor this will be tough but the answer is running antennas that are complete including their RF Return (aka RF ground). That could be dipoles or verticals or inverted-Ls with radials or even an EFHW as long as you take counterpoise into consideration either via the coax shield (ideally common mode choked about 5% to 10% of the longest wavelength you'll use) or with explicit counterpoise. If you run an antenna system like that you don't need an 'RF Ground' in your shack. Basically, point 1 is covered with modern wiring, point 2 is done outside the shack and ideally at ground level close to the AC service entry point and point 3 you shouldn't need unless you use an antenna system like a shack tuned random wire or shack tuned Windom (original single wire feed version not the modern coax antennas that have borrowed that name). Just using a shack tuner doesn't mean you need an 'RF Ground' using an antenna system that lacks some form of RF Return is what mandates the shack ground in that case if you don't want your home's ground wiring to serve that function (not a good idea). Basically most hams don't need to run an elaborate shack grounding system though they should adhere to the NEC and ground coax shields where they enter the home. There's a lot of very dated information regarding shack grounding, some still published by the ARRL and others but in the vast majority of modern ham shacks an external ground system is not needed and won't provide any benefit. If adding a shack grounding system does something noticeable to performance like reducing received noise then something is wrong with your antenna system deployment and the added ground system is a band aid, it's best to fix those kinds of problems at their source.