Antenna Placement
All tests were performed with all antennas pointing up
- Xbee interference with 433Mhz band
- Xbee levels at 960mhz band
- orangerx 433mhz
- orangerx 960mhz
- ezuhf 433mhz
- ezuhf 960mhz
- esc interference with 433mhz and 960mhz bands
- gps interference with 433 and 960mhz bands
- picpilot power supply interference iwth 433 and 960mhz bands
- everything inside noise floor results (everything but uhf on for 433mhz test, everything but xbee on for 960mhz test)
Range checks
- range check with dragon link powered by battery
- range check with dragon link hooked up to esc directly
- range check with dragon link hooked up to picpilot powered by battery
- range check with dragon link hooked up to picpilot powered by esc
- range check with dragon link hooked up to picpilot + esc + gps
- range check with dragon link hooked up to picpilot + gps + xbee
- range check with dragon link hooked up to picpilot + gps + xbee + dji
- range check with everything inside plane ready to fly (packed in the same way as before flight, this is important to test antenna placements)
426-441 Mhz Tests (in Bay)
Noise Floor
| Location | Bay |
|---|---|
| Frequency Range | 426-442Mhz |
| Condition | Everything off, noise floor |
| RF Explorer Antenna | Not Retracted |
| Max Level | -64.60 |
| Max Hold Level | -80dbm |
| Max Level Freq | 441.714Mhz |
| Image |
|
| Location | Bay |
|---|---|
| Frequency Range | 426-442Mhz |
| Condition | Everything off, noise floor |
| RF Explorer Antenna | Retracted |
| Max Level | -97.7 |
| Max Hold Level | -91.70 |
| Max Level Freq | 434.286Mhz |
| Image |
|
Dragon Link Testing
| Location | Bay |
|---|---|
| Frequency Range | 426-442Mhz |
| Condition | Dragon Link On, Lowest Power, 5ft away |
| Notes | Increasing power level created RF overload |
| RF Explorer Antenna | Retracted |
| TX Antenna | 0.7dbi 398-428Mhz range |
| Max Level | -18.6 |
| Max Hold Level | -18.6 |
| Max Level Freq | 437.10Mhz |
| Image |
|
| Location | Bay |
|---|---|
| Frequency Range | 426-442Mhz |
| Condition | Dragon Link On, Lowest Power, using provided Nagoya Antenna |
| Notes | Caused overload because of antenna |
| RF Explorer Antenna | Not Retracted |
| TX Antenna | Provided Nagoya |
| Max Level | -15.6 |
| Max Hold Level | -15.6 |
| Max Level Freq | 437.857Mhz |
| Image |
|
| Location | Bay |
|---|---|
| Frequency Range | 426-442Mhz |
| Condition | Dragon Link On, Range Test Mode, 5ft away |
| RF Explorer Antenna | Retracted |
| TX Antenna | 0.7dbi 398-428Mhz range |
| Max Level | -90.9 |
| Max Hold Level | -90.9 |
| Max Level Freq | 433.286Mhz |
| Image |
|
| Location | Bay |
|---|---|
| Frequency Range | 426-442Mhz |
| Condition | Dragon Link On, Range Test Mode, 5ft away |
| RF Explorer Antenna | Not Retracted |
| TX Antenna | 0.7dbi 398-428Mhz range |
| Max Level | -84.90 |
| Max Hold Level | -83.90 |
| Max Level Freq | 433.143Mhz |
| Image |
|
| Location | Bay |
|---|---|
| Frequency Range | 426-442Mhz |
| Condition | Dragon Link On, Range Test Mode, < 1ft away |
| RF Explorer Antenna | Not Retracted |
| TX Antenna | 0.7dbi 398-428Mhz range |
| Max Level | -77.60 |
| Max Hold Level | -75.60 |
| Max Level Freq | 437.857 Mhz |
| Image |
|
OrangeRX Testing
| Location | Bay |
|---|---|
| Frequency Range | 428-442Mhz |
| Condition | Orange RX On, 5ft Away |
| RF Explorer Antenna | Retracted |
| TX Antenna | 0.7dbi 398-428Mhz range |
| Max Level | -38.60 |
| Max Hold Level | -37.60 |
| Max Level Freq | 432.125Mhz |
| Image |
|
| Location | Bay |
|---|---|
| Frequency Range | 428-442Mhz |
| Condition | Orange RX On, 5ft Away |
| RF Explorer Antenna | Not Retracted |
| TX Antenna | 0.7dbi 398-428Mhz range |
| Max Level | -24.10 |
| Max Hold Level | -23.60 |
| Max Level Freq | 432.125 Mhz |
| Image |
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EzUHF Testing
| Location | Bay |
|---|---|
| Frequency Range | 426-442Mhz |
| Condition | EzUHF On, Low Power, 5ft Away |
| RF Explorer Antenna | Retracted |
| TX Antenna | Provided Antenna (came with module) |
| Max Level | -34.4 |
| Max Hold Level | -30.9 |
| Max Level Freq | 433.714Mhz |
| Image |
|
| Location | Bay |
|---|---|
| Frequency Range | 426-442Mhz |
| Condition | EzUHF On, Low Power, 5ft Away |
| RF Explorer Antenna | Not Retracted |
| TX Antenna | Provided Antenna (came with module) |
| Max Level | -24.4 |
| Max Hold Level | -22.9 |
| Max Level Freq | 433.143Mhz |
| Image |
|
| Location | Bay |
|---|---|
| Frequency Range | 426-442Mhz |
| Condition | EzUHF On, High Power, 5ft Away |
| RF Explorer Antenna | Not Retracted |
| TX Antenna | Provided Antenna (came with module) |
| Max Level | -18.70 |
| Max Hold Level | -17.20 |
| Max Level Freq | 432.125 Mhz |
| Image |
|
| Location | Bay |
|---|---|
| Frequency Range | 426-442Mhz |
| Condition | EzUHF On, High Power, 5ft Away |
| RF Explorer Antenna | Retracted |
| TX Antenna | Provided Antenna (came with module) |
| Max Level | -28.9 |
| Max Hold Level | -28.9 |
| Max Level Freq | 434.0Mhz |
| Image |
|
| Location | Bay |
|---|---|
| Frequency Range | 426-442Mhz |
| Condition | EzUHF On, 5ft Away |
| RF Explorer Antenna | Not Retracted |
| TX Antenna | Provided Antenna (came with module) |
| Max Level | -24.10 |
| Max Hold Level | -23.60 |
| Max Level Freq | 432.125 Mhz |
| Image |
| Location | Bay |
|---|---|
| Frequency Range | 426-442Mhz |
| Condition | EzUHF On, 5ft Away |
| RF Explorer Antenna | Not Retracted |
| TX Antenna | 0.7dbi 398-428Mhz range |
| Max Level | -24.10 |
| Max Hold Level | -23.60 |
| Max Level Freq | 432.125 Mhz |
| Image |
| Location | Bay |
|---|---|
| Frequency Range | 426-442Mhz |
| Condition | EzUHF On, 5ft Away |
| RF Explorer Antenna | Not Retracted |
| TX Antenna | 0.7dbi 398-428Mhz range |
| Max Level | -24.10 |
| Max Hold Level | -23.60 |
| Max Level Freq | 432.125 Mhz |
| Image |
| Location | Bay |
|---|---|
| Frequency Range | 426-442Mhz |
| Condition | EzUHF On, 5ft Away |
| RF Explorer Antenna | Not Retracted |
| TX Antenna | 0.7dbi 398-428Mhz range |
| Max Level | -24.10 |
| Max Hold Level | -23.60 |
| Max Level Freq | 432.125 Mhz |
| Image |
| Location | Bay |
|---|---|
| Frequency Range | 426-442Mhz |
| Condition | EzUHF On, 5ft Away |
| RF Explorer Antenna | Not Retracted |
| TX Antenna | 0.7dbi 398-428Mhz range |
| Max Level | -24.10 |
| Max Hold Level | -23.60 |
| Max Level Freq | 432.125 Mhz |
| Image |
900-960 Mhz Tests (in Bay)
Orange RX Interference Testing
| Location | Bay |
|---|---|
| Frequency Range | 899-960 |
| Condition | Orange RX On, 5ft Away |
| RF Explorer Antenna | Not Retracted |
| TX Antenna | 0.7dbi 398-428Mhz range |
| Max Level | -85.42 |
| Max Hold Level | -85.42 |
| Max Level Freq | 914.25, 930.025Mhz |
| Image |
|
| Location | Bay |
|---|---|
| Frequency Range | 899-960 |
| Condition | Orange RX On, 5ft Away |
| Notes | Noise floor was about same level. So orangeRX had no effect |
| RF Explorer Antenna | Retracted |
| TX Antenna | 0.7dbi 398-428Mhz range |
| Max Level | -96.27 |
| Max Hold Level | -95.77 |
| Max Level Freq | 900.89, 930.045Mhz |
| Image |
|
DragonLink Interference Testing
| Location | Bay |
|---|---|
| Frequency Range | 899-960Mhz |
| Condition | All off, noise floor |
| RF Explorer Antenna | Retracted |
| Max Level | -97.05 |
| Max Hold Level | -96.05 |
| Max Level Freq | 900.089 |
| Image |
|
| Location | Bay |
|---|---|
| Frequency Range | 899-960Mhz |
| Condition | Dragon Link On, Lowest Power, 5ft away |
| Notes | DragonLink TX is causing a bleed over to the 960Mhz band (since 430Mhz is a harmonic of 960) |
| RF Explorer Antenna | Retracted |
| TX Antenna | Provided Nagoya |
| Max Level | -79.05 |
| Max Hold Level | -78.05 |
| Max Level Freq | 954.009 |
| Image |
|
| Location | Bay |
|---|---|
| Frequency Range | 899-960Mhz |
| Condition | Dragon Link On, Lowest Power, 5ft away |
| Notes | DragonLink TX is causing a bleed over to the 960Mhz band (since 430Mhz is a harmonic of 960) |
| RF Explorer Antenna | Not Retracted |
| TX Antenna | Provided Nagoya |
| Max Level | -74.55 |
| Max Hold Level | -73.05 |
| Max Level Freq | 954.009 |
| Image |
|
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