MightyMoe, post: 373727, member: 700 wrote: yes, and as static if you run it through the fixweek program
Gentlemen, I found this post in the forum via a web search in Google. I am an offshore/hydrographic surveyor. I have a request from a client to conduct regular gps Verifications on some of their vessel DGPS units. Typical method for this is setting up two benchmarks dockside via an independent GPS system, and using a total station to take time sync shots on the vessels DGPS antenna. To compare calculated (total station shots) to observed (vessel DGPS).
So my question is this. I need a very low cost gps system to log data for my dockside monuments, which will be processed in opus or csrs. Is the Trimble 4700 receiver (say with a zephyr antenna) still a good option for this? Would I need to use this fixweek program and is that the only issue? Where can I get that program and once I have it, will the Trimble 4700 still have a decent usable life for my specific purpose?
Thanks
Daniel
Daniel Boone, post: 389944, member: 12081 wrote: Gentlemen, I found this post in the forum via a web search in Google. I am an offshore/hydrographic surveyor. I have a request from a client to conduct regular gps Verifications on some of their vessel DGPS units. Typical method for this is setting up two benchmarks dockside via an independent GPS system, and using a total station to take time sync shots on the vessels DGPS antenna. To compare calculated (total station shots) to observed (vessel DGPS).
So my question is this. I need a very low cost gps system to log data for my dockside monuments, which will be processed in opus or csrs. Is the Trimble 4700 receiver (say with a zephyr antenna) still a good option for this? Would I need to use this fixweek program and is that the only issue? Where can I get that program and once I have it, will the Trimble 4700 still have a decent usable life for my specific purpose?
Thanks
Daniel
If you have good observation sites you'd probably get OK results with a 4700. I use TSC2's to log the data and haven't messed with the fix that date program. At this point in the 4700 life and considering that Trimble software seems to just die at some point about 15 years out of new I wouldn't invest very much in any equipment probably not more than I could recoup in say 3 months. If the software doesn't quit on you the hardware could turn bad also at this age although my 4700's have never had any hardware problems, but 15-20 years is a long time on any computer hardware.
I'm living on borrowed time with the 4700's, could quit any day and I'll need to get something much newer when that happens.
LRDay, post: 390212, member: 571 wrote: If you have good observation sites you'd probably get OK results with a 4700. I use TSC2's to log the data and haven't messed with the fix that date program. At this point in the 4700 life and considering that Trimble software seems to just die at some point about 15 years out of new I wouldn't invest very much in any equipment probably not more than I could recoup in say 3 months. If the software doesn't quit on you the hardware could turn bad also at this age although my 4700's have never had any hardware problems, but 15-20 years is a long time on any computer hardware.
I'm living on borrowed time with the 4700's, could quit any day and I'll need to get something much newer when that happens.
LRDay,
I'm sitting on a 570/5800 base rover setup using a Trimark radio and TDS Ranger controller running TDS Survey Pro. I bought it through a trade in where I work when we moved to R8-3's. Everything works great, but I'm just not getting much use out of them as I'm just too darn busy to take on side work any more. I'd consider parting with the entire system for what I've got into it plus the shipping. I've got 5k into them. Includes everything to hit the ground running. They aren't Glonass receivers and cables are a pain in brush, but would work just fine in open country like yours. Been thinking about letting them go to a good home where they'd get a good work out. I'm taking them in to make sure they're loaded with latest firmware. Message me if your interested. I just don't have time to play the ebay game.
Cheers! Willy
Daniel Boone, post: 389944, member: 12081 wrote: Gentlemen, I found this post in the forum via a web search in Google. I am an offshore/hydrographic surveyor. I have a request from a client to conduct regular gps Verifications on some of their vessel DGPS units. Typical method for this is setting up two benchmarks dockside via an independent GPS system, and using a total station to take time sync shots on the vessels DGPS antenna. To compare calculated (total station shots) to observed (vessel DGPS).
So my question is this. I need a very low cost gps system to log data for my dockside monuments, which will be processed in opus or csrs. Is the Trimble 4700 receiver (say with a zephyr antenna) still a good option for this? Would I need to use this fixweek program and is that the only issue? Where can I get that program and once I have it, will the Trimble 4700 still have a decent usable life for my specific purpose?
Thanks
Daniel
For what you need, static processed by OPUS, you would best be served by the iGAGE X90-OPUS GPS. You could probably get a new system for about $2000 specifically set up to do what you need and without all the trouble of an old 4700.
Hey Willy. Thanks for letting me know about your unit. I'm afraid it's more than I can spend right now but good luck I'm sure someone can use it.
Daniel
Williwaw, post: 390219, member: 7066 wrote: LRDay,
I'm sitting on a 570/5800 base rover setup using a Trimark radio and TDS Ranger controller running TDS Survey Pro. I bought it through a trade in where I work when we moved to R8-3's. Everything works great, but I'm just not getting much use out of them as I'm just too darn busy to take on side work any more. I'd consider parting with the entire system for what I've got into it plus the shipping. I've got 5k into them. Includes everything to hit the ground running. They aren't Glonass receivers and cables are a pain in brush, but would work just fine in open country like yours. Been thinking about letting them go to a good home where they'd get a good work out. I'm taking them in to make sure they're loaded with latest firmware. Message me if your interested. I just don't have time to play the ebay game.
Cheers! Willy
LRDay, post: 390262, member: 571 wrote: For what you need, static processed by OPUS, you would best be served by the iGAGE X90-OPUS GPS. You could probably get a new system for about $2000 specifically set up to do what you need and without all the trouble of an old 4700.
I've been looking at the X90. It's definitely exactly what I need. I was hoping to find something suitable used for less to accomplish my single specific need, but I'm thinking more and more this is the way I need to go.
Daniel
I have an X90, rarely use it (I bought it as an extra unit for use when we need one), but it works just fine for static. I did extensive testing to make sure there were no biases introduced (we do a lot of high accuracy work) and it works just fine. It may or may not say this on the web page, but it is a trimble board inside.
John
Thanks for that info. Good to hear that about the board. As much as I'd like to find something for a little less, I think I will get the most benefit and production out of one of these X90.
Daniel
John Hamilton, post: 390341, member: 640 wrote: I have an X90, rarely use it (I bought it as an extra unit for use when we need one), but it works just fine for static. I did extensive testing to make sure there were no biases introduced (we do a lot of high accuracy work) and it works just fine. It may or may not say this on the web page, but it is a trimble board inside.
