If you can connect a few short headers between it and a Raspberry Pi you can get a Navspark Mini that works great for 1PPS plus a USB-UART adapter for free, plus the $10 shipping cost.
The GPS in the Navspark Mini is Venus 8 based and really good, (especially considering its extremely low price) but it is not a "timing GPS". However, it is good enough to be an good stratum 1 NTP server, however because the network card is USB and does not support hardware timestamping the performance has several areas where it could be improved. That is not the GPSs fault though, at all. Even switching to a timing GPS I suspect would make little difference compared to other optimizations. They should be done if your needs involve instruments or measurements on the raspberry pi directly using its GPIOs, SPI, i2c bus, etc. For everything over the network the network latency would reduce the precision.
I would be happy to help you get it set up your GPS (any kind) on a Raspberry Pi. Its pretty easy.
You will need a GPS antenna, either active or passive would work fine.
If you get the Navspark mini, its antenna input uses the tiny u.fl plug so you likely need an adapter, which costs around a dollar on ebay.
Virtually any decent GPS antenna, active or pssive will do for the navspark/skytraq GPSs. I use a passive taoglas antenna and my GPS is indoors and quite some distance away from any windows, still as far as I can recall it has not lost its GPS lock ever, without my causing it. It just works. Performance of its PPS pulse as seen by NTP seems to be top notch.
Check out David Taylor's site at satsignal.eu for info on using NTP with a Raspberry Pi.
As others say, the input on your scope likely isn't for a 10 MHz frequency standard.
What could be super useful though is using a PIC or RPI to timestamp events in conjunction with your scope. Then you will get precise numbers you can attach to the pictures your scope gives you.
Is there a simple and cheap no brainer plug in GPS Module that will work with all oscilloscopes in general? I have a Siglent 100 mHz scope, with a time base BNC connector plug in on the back. It sits on my bench in the Basement Lab. Above it is a window...And above THAT is a sky full of GPS Sats that I already pay taxes for. Seems like a shame not to take advantage of them.
It is..
You can take advantage of GPS's in dozens of ways, and I'm sure your scope will be extremely useful.
Lack of a direct 10MHz timebase input is not important.
Even if you are just using a GPS 1PPS to tell your computer's clock exactly when the seconds change right there you are getting a very useful improvement.
Does your computer have a real, (non-USB) serial port? If so, you should get a level changer so it can work with 3.3 volt hardware via its serial port.
An interrupt with low latency that the timekeeping software can see (often the DCD line of a serial port is used) is important. Thats where desktops are better than laptops because an add on card that adds a real serial port can be used...using the DCD as well as he Txd/Rxd
USB timing is not predictable.
If you are using a laptop that doesn't have a real serial port (or parallel port or anything similar) there may not be any way to get really precise timing data into it unless its timestamped externally somehow, (and in that case its not useful for NTP)