Harold Dendy
Member
I am reading the user's manuals first. From what I can tell, I need an FCC license to operate the UHF 406-470 MHz radio that came with the paired special stimulus deal they had this past June for the LS+ and T3 units. I have been using GPS and a field controller for 9 years, and I recognize many similarities, but this system is different.
First, I understood from previous units to never operate the UHF radios without an antenna attached. However, the Javad Triumph 3 unit has an internal modem UHF 406-470 MHz with no mention of an internal antenna, and the LS+ unit has a GNSS Geodetic Antenna that is a built-in microstrip (Zero Centered) antenna, acting as if on a flat ground plane with a LNA Gain of 32 +/- 2dB. In the Quick Start Guide for the LS+, information is lacking as to whether or not to attach an external antenna. The T-3 came with three antennas, two 2.4/5.8 GHz RP-SMA, and one 400-470 MHz 2.5 dB SMA antenna. The LS+ unit came with two: a little LTE antenna, and a larger UHF 400-470 MHz 2.5 dB antenna like the T-3 antenna. I have connected all three antennae, turned it on, downloaded and connected the NetView & Modem software, uploaded the new OAF file for the T-3, connected wireless to the LS+ unit and uploaded the OAF file to it, and I am still reading. I have set up the Mississippi State Plane Coordinate System and the recommended related settings.
From what I can gather, I need an FCC license to operate the UHF radio in the T-3. I read the article by Mark Silver referenced in the LS User's Guide and it got my attention real fast on violations and daily fines. I will get the license. So, I logged on to the FCC website, waded through the acronyms, found a form to fill out and get my FRN, my FCC Registration Number, and I got it and a password to log onto the FCC website to apply for a license.
Now, the dilemma: both units have telephone SIMM card slots, and the LS+ actually has two slots. I need one in the LS+ to connect to a RTN in Mississippi (GCGC Network) (single leg base). Through ATT, I get pretty good cell coverage in most places. I plan to keep using the same methodology to collect one point with a GNSS Network Rover, then set up my base station with an OK-usable SPCS point and rock -n- roll from there. I can collect OPUS or its equivalent for a better point and adjust later. The RTN is not good enough for network work, and a subscription to another network is prohibitively expensive.
Next? The Base/Rover setup has UFH or "Frequency Hopping 915 Spread Spectrum) radio. AHA.....here it says to always connect an antenna to the radio on page 33 of the Quick Guide and on page 19 of the User's Manual. OK. Got it.
The setup for the UHF radio requires a specific frequency, modulation, bandwidth, output power, and call sign from the FCC, which I do not have quite yet.
Well, here I am stopped. ATT shared data plans are $20/card. FCC license is about $5/month for 10 years. When/why should I use the Frequency Hopping method? Is it license free?
I am a new Javad system owner, as you can tell. I would like to get a range of about 1-2 miles with my system, and if I get an FCC radio license, I want to make sure I can increase the range later if my work demands it. I am not sure I can carry around a 4-meter antenna for a radio antenna, but I can fit a 2-meter antenna in my truck. The T-3 can output 2 watts ERP, so does it need a longer antenna with a higher dBd gain to get more distance from the radio? Most of my work is done within a one-mile radius of my base station in Northeast Mississippi. Half the territory is semi-flat, and the other half is rolling hills, with lots of timber. I get about one mile with my existing 10-year-old GPS units, and I rarely have to leapfrog my base station.
At this point, I am looking for advice, suggestions, recommendations on how to proceed. I am going to the seminar in Hot Sprints at the end of next month. I am currently looking at and reading the manuals, and working on comprehending this new technology and the methods used to operate these units. I have not called anyone yet to get me started on the right foot - I am must reading and thinking out loud. I would appreciate any input as to what I need to look out for, pay attention to, and make sure you do this stuff.
Thanks in advance. And please be nice. I am a newbie with Javad.
First, I understood from previous units to never operate the UHF radios without an antenna attached. However, the Javad Triumph 3 unit has an internal modem UHF 406-470 MHz with no mention of an internal antenna, and the LS+ unit has a GNSS Geodetic Antenna that is a built-in microstrip (Zero Centered) antenna, acting as if on a flat ground plane with a LNA Gain of 32 +/- 2dB. In the Quick Start Guide for the LS+, information is lacking as to whether or not to attach an external antenna. The T-3 came with three antennas, two 2.4/5.8 GHz RP-SMA, and one 400-470 MHz 2.5 dB SMA antenna. The LS+ unit came with two: a little LTE antenna, and a larger UHF 400-470 MHz 2.5 dB antenna like the T-3 antenna. I have connected all three antennae, turned it on, downloaded and connected the NetView & Modem software, uploaded the new OAF file for the T-3, connected wireless to the LS+ unit and uploaded the OAF file to it, and I am still reading. I have set up the Mississippi State Plane Coordinate System and the recommended related settings.
From what I can gather, I need an FCC license to operate the UHF radio in the T-3. I read the article by Mark Silver referenced in the LS User's Guide and it got my attention real fast on violations and daily fines. I will get the license. So, I logged on to the FCC website, waded through the acronyms, found a form to fill out and get my FRN, my FCC Registration Number, and I got it and a password to log onto the FCC website to apply for a license.
Now, the dilemma: both units have telephone SIMM card slots, and the LS+ actually has two slots. I need one in the LS+ to connect to a RTN in Mississippi (GCGC Network) (single leg base). Through ATT, I get pretty good cell coverage in most places. I plan to keep using the same methodology to collect one point with a GNSS Network Rover, then set up my base station with an OK-usable SPCS point and rock -n- roll from there. I can collect OPUS or its equivalent for a better point and adjust later. The RTN is not good enough for network work, and a subscription to another network is prohibitively expensive.
Next? The Base/Rover setup has UFH or "Frequency Hopping 915 Spread Spectrum) radio. AHA.....here it says to always connect an antenna to the radio on page 33 of the Quick Guide and on page 19 of the User's Manual. OK. Got it.
The setup for the UHF radio requires a specific frequency, modulation, bandwidth, output power, and call sign from the FCC, which I do not have quite yet.
Well, here I am stopped. ATT shared data plans are $20/card. FCC license is about $5/month for 10 years. When/why should I use the Frequency Hopping method? Is it license free?
I am a new Javad system owner, as you can tell. I would like to get a range of about 1-2 miles with my system, and if I get an FCC radio license, I want to make sure I can increase the range later if my work demands it. I am not sure I can carry around a 4-meter antenna for a radio antenna, but I can fit a 2-meter antenna in my truck. The T-3 can output 2 watts ERP, so does it need a longer antenna with a higher dBd gain to get more distance from the radio? Most of my work is done within a one-mile radius of my base station in Northeast Mississippi. Half the territory is semi-flat, and the other half is rolling hills, with lots of timber. I get about one mile with my existing 10-year-old GPS units, and I rarely have to leapfrog my base station.
At this point, I am looking for advice, suggestions, recommendations on how to proceed. I am going to the seminar in Hot Sprints at the end of next month. I am currently looking at and reading the manuals, and working on comprehending this new technology and the methods used to operate these units. I have not called anyone yet to get me started on the right foot - I am must reading and thinking out loud. I would appreciate any input as to what I need to look out for, pay attention to, and make sure you do this stuff.
Thanks in advance. And please be nice. I am a newbie with Javad.