A few months back when you were deciding between two job offers, one from the big firm with the latest equipment, and the other being this small firm, this situation is exactly what many of us told you it would be.
It should come as no shock to you that they are working with older conventional equipment. It is mildly surprising that they have no GPS, but not shocking. Almost any small survey job can be done with a total station, not all can be done with GPS.
Like Mr. Christensen said, and as you were advised several months ago, your opportunities in a firm like this are not necessarily less than they would be in the larger firm, but they will be very different. If you are able to show your employer that you can perform a wide array of tasks relative to the company's projects, not just measuring and calculating, although those are important, then you will likely be given different responsibilities. That is a wider array of responsibilities. A couple of the most important things your boss will want to see to entrust you with those other responsibilities are an appreciation for the opportunities you are given, and good judgment.
Whining because you don't have the latest, greatest measuring tools to play with displays neither. If really think that your education was to prepare you to be a great instrument operator, whether it be a total station, GPS, a scanner, or whatever the next whiz-bang field tool that comes along to make our field work easier, then you wasted your time a college. You could have sought out a job with one of the big firms right out of high school, begged and pleaded with the boss to put you with the chief that gets the newest and best tools, and learned all you needed to know about running them in 6 months or less. If you are worried about missing out on using cool gadgets, then you are stuck in a technician's viewpoint and are overeducated for your amibitions and professional aspirations.
One thing I learned early on is that field technology changes pretty fast, but it is all built for one simple task - to make measurements. Period. Even if you personally fall behind in technology for several years, it doesn't take very long to get up to speed once the opportunity to obtain or use the latest greatest comes along. However, the broader set of tasks that go into making a project come together can only be adequately learned with time, lots of it. And it is these broader set of skills involving research, the law, economics, personnel and project management, client relations, contracts, etc. that you will need to be an effective professional. Depending upon the culture of the company as set by the owner, you probably have a much better opportunity to learn the professional skills where you are at.
If you really feel they should be using newer equipment, then why don't you try to impress the boss with an economic analysis which identifies current project types performed by the company, provides a realistic comparison of productivity using equipment currently owned by the company vs the equipment you propose they buy or lease. Show, given a realistic workload projection, whether the benefit outweighs the cost on a monthly basis, and how long it would take to recoup the investment. Factor in auxilliary purchases required (additional equipment, software, computer upgrades, etc.) and any staff training required. Factor in a learning curve for other staff who would use the equipment or software. This would be a great economic lesson for you in terms of making a real world decision in making a capital investment, and if your assumptions and baselines are realistic, regardless of whether your analysis shows that it makes sense to obtain such equipment now, at some point in the foreseeable future, or only under economic conditions which are not currently foreseeable, you are likely to impress your boss with the thoroughness and ability to perform such an analysis.
But if your analysis is incomplete in its accounting of various cost and use factors, if it is based upon unrealistic projections and assumptions, if the data is deliberatley skewed to improperly arrive at a decision to obtain expensive equipment, your boss will be able to easily spot those things. Rather than being impressed with the knowledge required to put the analysis together, he will see it as a poorly considered and half baked attempt to get him to spend his money on an expensive toy for you. Not unlike a teenager trying to convince his dad that his first car should be a new Mustang instead of a used Corolla. I hope you paid attention in your business economics class and kept the text book. It sure would come in handy now.
So decide. Are you determined to be on the road to becoming a well rounded professional, or a highly skilled and overeducated technician? If where you are at will not help to fulfill your long term career goals, then start looking for other opportunities. I suggest that you consider the question carefully, and re-read Brian's post a few times as you do so.