
Long-Range Radio
The built-in UHF radio takes corrections from your own base. FJD quotes up to 11 km from a 2 W base in good conditions.
UHF Base, V1t Rover & E600 Controller
Some accessories shown are optional extras. See what's included
This bundle includes
Complete Your Kit
Everything for base-and-rover RTK in one order: the FJD Trion V1t base station kit with a 2 W UHF radio, and the V1t rover kit with tilt compensation and FJD's E600 controller with Trion Survey ready to use. The base sends corrections to the rover by radio, so you get centimetre RTK with no mobile coverage or correction subscription.
This kit puts the V1t base station kit and the V1t rover kit together. It’s the lowest-cost way into your own base-and-rover RTK system, for farms, rural blocks and remote jobs.
Set the base up on a tripod over a fixed point and start it from the E600 controller. It transmits corrections over its 2 W UHF radio, and the rover uses them wherever it can hear the base: FJD rates the link at about 5 km in normal conditions (3–8 km depending on terrain and interference) and up to 11 km at 2 W in good, open country. Where there is mobile coverage, the rover can also take network (NTRIP) corrections through the E600’s 4G. A UHF base transmitting in the 400 MHz band needs an ACMA apparatus licence.
RTK accuracy is 8 mm + 1 ppm horizontal and 15 mm + 1 ppm vertical. The rover’s IMU compensates for pole tilt: FJD quotes 2.5 cm at 30°, up to 60°. Both receivers are IP67 and drop-tested to 1.5 m.
A tripod for the base and a survey pole for the rover: add our HDF94 heavy-duty tripod and the FJD carbon fibre pole below. The base screws onto any 5/8-inch survey thread; for setting up exactly over a survey mark, use a tribrach.
FJD Trion V1 Series RTK rover

The built-in UHF radio takes corrections from your own base. FJD quotes up to 11 km from a 2 W base in good conditions.

The IMU corrects for pole tilt, so you don't need to plumb the pole. FJD quotes 2.5 cm at 30°, up to 60°.

FJD's rugged Android controller with a keypad and 4G, with Trion Survey ready to use. It also supplies network corrections to the V1t.


The base sends RTK corrections to your rover over UHF radio, so you can work where there's no mobile signal and pay no correction subscription.

FJD rates the 2 W radio at about 5 km in normal conditions and up to 11 km in good, open country. Antenna height makes the biggest difference.

Up to 10 hours at 1 W from the internal battery, or run it from an external 9–32 V supply.

| RTK Accuracy | Horizontal 8 mm + 1 ppm; vertical 15 mm + 1 ppm (RMS) |
|---|---|
| Tilt Compensation | 2.5 cm (horizontal) at 30°; up to 60° |
| GNSS | 1408 channels; GPS, BeiDou, GLONASS, Galileo, QZSS, NavIC, SBAS |
| RTK Initialisation | Under 5 s (baseline under 10 km); over 99.9% reliability |
| Built-in UHF Radio | 2 W rover radio; 410–470 / 902–928 MHz |
| Radio Protocols | LoRa, TRIMTALK, TRIMMARK III, T450S, TRANSEOT, Satel 3AS 4FSK |
| Radio Range | Up to 11 km from a 2 W base, good conditions (FJD claim) |
| 4G | None: network corrections through the E600 controller's 4G |
| Can Work as a Base | Yes |
|---|---|
| Battery | 6,500 mAh; up to 15 h as a rover; 30 W USB-C PD fast charge (Australian wall charger not included) |
| External Power | 9–32 V DC |
| Toughness | IP67; 1.5 m drop; -30 °C to +60 °C |
| Size and Weight | 162 × 86 mm; 1,070 g |
| Memory | 32 GB |
| Controller | FJD E600 (included), with Trion Survey ready to use |

| RTK Accuracy | Horizontal 8 mm + 1 ppm; vertical 15 mm + 1 ppm (RMS) |
|---|---|
| GNSS | 1408 channels; GPS, BeiDou, GLONASS, Galileo, QZSS, NavIC, SBAS |
| Internal UHF Radio | 1 or 2 W; 410–470 / 902–928 MHz |
| Radio Range | About 5 km typical (3–8 km); up to 11 km in good conditions |
| Radio Protocols | LoRa, TRIMTALK, TRIMMARK III, T450S, TRANSEOT, Satel 3AS 4FSK |
| Correction Formats | Output RTCM 3.x; input CMR, RTCM 2.x, RTCM 3.x |
| Update Rate | 1, 2 or 5 Hz |
| Battery | 6,500 mAh; up to 10 h as a base at 1 W; 30 W USB-C PD fast charge (Australian wall charger not included) |
|---|---|
| External Power | 9–32 V DC (aviation plug) |
| Toughness | IP67; 1.5 m drop; -30 °C to +60 °C |
| Size and Weight | 162 × 86 mm; 1,070 g |
| Memory | 32 GB |
| Mount | 5/8-inch survey thread; extension rod and tribrach plate included |
| Setup | From your FJD rover's E600 controller in Trion Survey |
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Good service and easy process
TThicks2 weeks agoGreat service and great laser. Got a 3-axis laser level and after dropping it from the second floor onto concrete one of the glass housings was damaged but the Redback team was super responsive and sorted a replacement part within a few days. Just good service and a good product.
TThomas Andersen2 weeks agoGood product for the price, amazing service, had a problem with my receiver, called and explained the problem, a new one arrived 3 days later in the mail, these guys are the best.....
AALLAN P.3 weeks agoGood quality, good price, I used it straight away with my Redback laser and everything works well.
AAdrian4 weeks agoTop service.
SSteven BAUER1 month agoEasy purchase fast delivery
KKoby Boer1 month agoJust what I needed - accurate, easy to use
TTrav Mcmahon3 months agoJack and the crew have been one of the best business to deal with. For three years I've had no issue with their products but when I had a fault they were brilliant to deal with on the phone and had me bask working within days, with was great considering I first call on a Friday afternoon.
RRob Thompson3 months agoThe help i got from Tim and the guys was second to none.....they returned my calls immediately and kept me in the loop looking for what I needed.....my purchase was expressed post so didn't hold me up with construction.....I wouldn't buy laser equipment from anyone else.....thanks guys
JJay Saunders7 months agoRedback lasers sent the product fast which saw me receive the product in no time. I also received a free upgrade to a lr730 which I was stoked about. The LR730 works a treat for getting heights set out precisely