This question wants a device that can send generated GPS signals over an antenna cable. I gave exactly that in my answer:
You can achieve this using an SDR (software-defined radio). It's essentially a device that can be programmed to transmit any radio signal you want.
gps-sdr-sim is an open source Software-Defined GPS Signal Simulator. You'll find recommended hardware and build instructions on that website.
This answer got deleted promptly by @ArtOfCode with this comment:
Now I recognise that I should have provided references to the actual hardware. So I edited my (deleted) answer to make it more obvious that an SDR is actually a real piece of hardware. It also happens to need some software to run, just like most typical hardware nowadays, but I put the link to the software between parentheses:
You can achieve this using an SDR (software-defined radio). It's essentially a device that can be programmed to transmit any radio signal you want:
These SDR boards are known to be able to produce GPS signals:
(To configure one of those to send out GPS signals, you could use for example gps-sdr-sim, an open source Software-Defined GPS Signal Simulator.)
So, being unable to discuss this in the comments since they are disabled on deleted posts, I'm left with the following questions:
- Is this considered a valid answer now?
- Will it be undeleted?
- Am I allowed to repost an new version of a deleted answer?