I have a 4 GHz scope, and the stuff that I am doing probably stops at around 500 MHz.

While there are options that they don't have, it's all field upgradable. With the hardware upgrades, they have little accessory bays in the back of the scope which I have been making inquiries about.

We are probably not using the full bandwidth of the product. 

If it is upgradable, definitely we want to upgrade. We want to go to the higher bandwidths and are limited by the bandwidth of the product. Also, we want to go onto the higher frequencies.

For transceiver applications, the bandwidth is a bit narrower. The bandwidth of the VNA is around 20 GHZ, and for the 58G and 112G applicaitons,the measurements require much higher bandwidth. However, for our main product, the scope still works fine.

We are not utilizing the full bandwidth of the product. We will utilize the full bandwidth eventually, but not in the near future, probably in a few years.

It is not field upgradable. Usually, you just have to buy a new instrument.

We are utilizing the full bandwidth of the product.

Typically, if we need to upgrade, we just buy another tool.

We are using the full bandwidth.

We have a series of specific testing instruments to generate a protocol for generating signals and RF down to the digital protocol analyzer. We have high-speed serial, a base-band processor, network processors, network chips, network controllers, and CPUs.

We are utilizing the full bandwidth of the product, more or less.

I haven't personally thought about upgrading it. For this particular application, somebody else owns the instrument. We just use it.