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FMT100 Product Change Notifications (view source)
Revision as of 16:54, 25 October 2023
, 16:54, 25 October 2023→2023.10.25: GNSS antenna changes
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==2023.10.25: GNSS antenna changes==
We would like to inform you about the GNSS antenna change for FMT100 starting from October 2023.
{| class="wikitable"
|+
! colspan="3" style="text-align: left; background: white;" |Change description
|-
| style="text-align: left; background: white;" |Change type
| colspan="2" style="text-align: left; background: white;" |Mechanical part changes
|-
| rowspan="2" style="width: 221px; text-align: left; background: white;" |Detailed description
|-
| style="text-align: left; background: white;" |Old version: [[File:FMT35.jpg]]
<br> Antenna size: 35x35x3 mm
<br> Center frequency: 1575.42 MHz, 1602 MHz
<br> VSWR: <1.8
<br> Average gain: -1.3 dB
<br> Return loss: < -14 dB
| style="text-align: left; background: white;" | New version: [[File:FMT25.jpg]]
<br> Antenna size: 25x25x4 mm
<br> Center frequency: 1575.42 MHz, 1602 MHz
<br> VSWR: <1.2
<br> Average Gain: -1.2 dB
<br> Return loss < -29 dB
|-
| style="text-align: left; background: white;" |Change reasons
| colspan="2" style="text-align: left; background: white;" | Standardization of GNSS antennas throughout device portfolio and manufacturing efficiency improvements
|-
| style="text-align: left; background: white;" |Product release date
| colspan="2" style="text-align: left; background: white;" |October 2023
|-
|}
{| class="wikitable"
|+
! colspan="3" style="text-align: left; background: white;" |Affected products
|-
| style="width: 221px; text-align: left; background: white;" |Model
| style="width: 448px; text-align: left; background: white;" |Affected order codes
| style="width: 448px; text-align: left; background: white;" |Order code changes
|-
| style="text-align: left; background: white;" |FMT100
| style="text-align: left; background: white;" |FMT100******* order codes
| style="text-align: left; background: white;" |No changes
|-
|}
{| class="wikitable"
|+
! colspan="3" style="text-align: left; background: white;" |Change impact
|-
| style="width: 221px; text-align: left; background: white;" |Risk assessment
| colspan="2" style="width: 908px; text-align: left; background: white;" |Since the change of the GNSS antenna is visible visually on PCB, in order to avoid problems at the customs of certain countries, we suggest informing the relevant authorities about the change of the GNSS antenna as soon as possible. The new GNSS antenna provides an equivalent track quality and performance level, as verified through testing. Testing results:
{| class="wikitable" style="text-align:center; background-color:#ffffff;"
|- style="font-weight:bold;"
! style="color:#000000;" | Device
! Antenna
! Mounting conditions*
! style="color:#000000;" | Avg. Difference<br /> from precise track** [m]
|-
| style="color:#000000;" | FMT100_162
| New
| Excellent
| style="color:#000000;" | 2,59
|-
| style="color:#000000;" | FMT100_745
| Old
| style="background-color:#FFF;" | Excellent
| style="color:#000000;" | 4,43<br />
|-
| style="color:#000000;" | FMT100_170
| New
| Good
| style="color:#000000;" | 3,45
|-
| style="color:#000000;" | FMT100_937
| Old
| Good
| style="color:#000000;" | 4,68
|-
| style="color:#000000;" | FMT100_238
| New
| Normal
| style="color:#000000;" | 3,93
|-
| style="color:#000000;" | FMT100_705
| Old
| Normal
| style="color:#000000;" | 4,92
|-
| style="color:#000000;" | FMT100_071
| New
| style="background-color:#FFF;" | Poor
| style="color:#000000;" | 4,98
|-
| style="color:#000000;" | FMT100_638
| Old
| Poor
| style="color:#000000;" | 5,05
|}
'''*'''''Mounting conditions'' - device position under the hood from a poor location (thick metal layer above device) to an excellent location (thin metal layer above device) <br>
'''**'''''Avg. Difference from precise track'' - measured by comparing positioning data from devices and RTK (Real-time kinematic positioning) system data which is considered precise data. The smaller avg. difference from precise track, means better track quality.
|-
| style="text-align: left; background: white;" |Suggested implementation plan
| colspan="2" style="text-align: left; background: white;" |No implementation plan needed
|-
|}
{| class="wikitable"
|+
|-
|}
==2022.08.01: Base firmware update==
==2022.08.01: Base firmware update==
