| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | ||
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1 | Name | Dragon Link (v2) | Thomas LRS kit (LR w/ PRO TX) | Thomas LRS kit (NR TINY w/ normal TX) | DMD LRS (WFPLRS, RXRCXXV2) | Fmkit cheapo UHF LRS | EzUHF | 2.4G Long Range Module | OpenLRS | ChainLink | "JR UHF module" | ||||||||||
2 | Author/Vendor | Daniel Wee (DragonLabs) | Thomas Scherrer | Thomas Scherrer | DMD | Fmkit (rcgroups) | ImmersionRC | RMILEC/Sharp Electronics (not the one you know) | Flytron (Melih) | BEVRC | RMILEC | ||||||||||
3 | URL | http://www.dragonlinklabs.com/ | http://www.webx.dk/rc/uhf-link3/uhf-link3.htm | http://www.webx.dk/rc/uhf-link3/uhf-link3.htm | http://tienda.dmd.es | http://www.fmtv.us | http://www.immersionrc.com/ | http://www.rmilec.com/ | http://www.flytron.com | http://www.bevrc.com/ | http://www.rmilec.com/ | ||||||||||
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5 | Price TX+RX | $ 269,00 | $ 350,00 | $ 315,00 | $ 1 250,00 | $ 50,00 | $ 408,00 | $122,99 | $140 | $199 | $265 | ||||||||||
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7 | Frequency | 433-435mhz | 433-444mhz | 433-444mhz | 869-915mhz | 433Mhz | 2400-2500Mhz | 420-450Mhz | 433Mhz | 415 and 433Mhz | |||||||||||
8 | Data-link | FHSS | FHSS | FHSS | FHSS | Direct PPM | FHSS | AFHSS-CDMA | FH | FHSS | FHSS | ||||||||||
9 | Comments | Free receiver for each additional DragonLink kit purchase (friend referral or self) | Widely used system | Widely used system, "normal" range version The "PRO" TX cost $ 50, 00 more than a normal TX (this column lists the normal TX) | Price might be higher for the listed product (?) Some features are very new and taken from the Spanish translation, and not yet available (FHSS, diversity, telemetry). it's difficult to determine as non-spanish speaker | This is a DYI kit, very cheap, pretty good range, limited featureset | Supports integration with the EzOSD TX/RX can be configured via USB with a computer The TX and RX are both full duplex capable, hence both are transceivers. | Discontinued | Firmware is open source | Fits in a regular JR module. Additional antenna mount. | |||||||||||
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11 | Receiver (RX) | (version 4.02) | RD 2425 | ||||||||||||||||||
12 | Price | $ 99,00 | $ 140,00 | $ 120, 00 (currently $ 80,00) | $440 | $ 50,00 | $149 (8ch), $109 (4ch) | $60 | $59 | $79 | |||||||||||
13 | Antenna | 1 dipole and 1 dipole with 15cm extension cable | No antenna included | 433mhz 2.5dBi SMA plugged Antenna (Dolji brand) | 1 dipole | wire | |||||||||||||||
14 | Size | 21x38mm | 34x53x12mm | 26x54mm | 46x32x20mm | 35x22x3mm (4ch), 52x28x10mm (8ch) | 40x27x13mm | ||||||||||||||
15 | Weight | 18.5gr | 19.4gr | 8.5gr | 22gr | Variable (CB) | 8gr (4ch), 18gr (8ch) | 10gr (according to shipping) | 18gr | ||||||||||||
16 | LNA/Filters | Yes | Yes (heavily filtered for 900, 1.3 2.4ghz vtx) | Yes | Yes | Variable (CB) | Yes | Yes | Yes (<300Mhz >500Mhz) | ||||||||||||
17 | RSSI | Yes | Yes, pin 12, buffered (1k ohm) | Yes, pin 12 | RCBUS+analog RSSI | No | i2c | i2c, RS232 and analog | Analog | ||||||||||||
18 | Voltage (input) | 4.2-5.8V | 4-6V | 4-10V | 3.5-7V | 5V | 4.8-7.4V | 4-14V | ?-15V | 4.8-6V | 3-8.4V | ||||||||||
19 | Current | 134mA @ 5V | 35mA | ||||||||||||||||||
20 | Voltage (servos out) | 3.3V | 3.3V positive pin | 3.3V positive pin | 3.3V | ||||||||||||||||
21 | Diversity | No | Yes | Yes via dual receivers | Yes, on 8ch RX | Yes | No | No | Yes | ||||||||||||
22 | Channels | 9 (12 with soldering extension by hand, or on custom request) | 12, channel 12 is PPM out when <12 channels are in use, mikrocopter compatible | 8 (12 on custom request) | 8 (+4 sensor channels) extendable to 24 with separate, optional box | No | 4 and 8 | 8 PCM (2ms frame width) | 8 PPM | 12 | 10 | ||||||||||
23 | Sensitivity | -115dBm | -113/-114dBm | -102dBm | -106dBm | -112dBm | -100dBm (note: very approximate) | -121dBm | -115dBm | -112dBm | |||||||||||
24 | Failsafe | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | ||||||||||||
25 | Flight assistance | Channel 9 outputs PPM stream for flight assistance (require additional hardware, like the DragonOSD+) | No | No | IR+Giro+RTH integrated | No | No | No | Channel 13 or 14 outputs PPM stream for flight assistance (require additional hardware, like the DragonOSD+) | ||||||||||||
26 | Telemetry | No | No | No | Yes | No | Yes | No | Yes | No | |||||||||||
27 | Distress bacons | No | No | No | Yes when signal lost, other receivers can also be used to find the beacon | No / Separate product available | Yes | No | No | ||||||||||||
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29 | Transmitter (TX) | TS 2425 | |||||||||||||||||||
30 | Size | 85x68x24mm | 77x76x29mm PRO | 45x68mm | 23x73x80mm | 80x68x23mm | |||||||||||||||
31 | Antenna | Rubber duck antenna 3dbi, RX dipole included, several options of antennas and free antenna extensions | RX Antennas not included | 433mhz 3dBi SMA plugged Antenna (Dolji brand) | 2.15dBi included | 2.15dBi included | |||||||||||||||
32 | Weight | 120gr (no antenna) | 206gr PRO | 86gr | 118gr | ||||||||||||||||
33 | Voltage | 7-20V | 6-25V Full power, 5-25V low power, 16V max newer models | 6-25V Full power, 5-25V low power, 16V max newer models | 5-24V | 3.3-5V | 9.6-12V | ?-15V | 7-30V | 8.4-16V | |||||||||||
34 | Current | 190mA @ 8.4V | 55mA @ 5V | 85ma @ 200mW 250ma @ 800mW (both @ 12V) | 500mw, 12V@210mA 200mw, 12V@120mA | 300-600mA | |||||||||||||||
35 | RFI protection (it means some steps are taken in order to prevent RFI issues when sharing power with the transmitter) | No | Yes | Yes | Yes | ||||||||||||||||
36 | RF Power | 0.5W (up to 7W via optional Thomas LRS compatible booster) | 0.5W, 1W, 2W (7W optional via optional booster) | 0.5W, 1W, 2W (7W optional via optional booster) | 0.025-0.5W | 0.5-5W | 0.2-0.8W (lower power modes available) | 0.5-1W | 0.1W (7W booster available) | 0.2W, 0.5W | 1W, 2W | ||||||||||
37 | RC Connectors | Solder your own - JR module connector (no soldering required, just clip in) provided, optional futaba connectors on demand | Futaba round/squarre, JR, Graupner, Multiplex, Hitec | Futaba round/squarre, JR, Graupner, Multiplex, Hitec | Solder your own/ Wii Nunchuck | Futaba round 2x (RC Radio and HeadTracker), MiniUSB, Aux jack | JR and Futaba module plug | Futaba module case and plug | Solder your own - JR module connector (no soldering required, just clip in) provided, optional futaba connectors on demand (for a fee) | None needed - JR module only | |||||||||||
38 | Tested range (not accurately representing maximum range! these are usually CLAIMS and might or might not be genuine. However it should get a general indication that the system has been flown far enough) | 25km flight test with video ( http://tinyurl.com/3yj9ok8 ) 27.9km flight test without video (RCG claim) 30km+ flight (only "2 certified viewers" of the video claim / RCG claim) More than 50km theoretical range with bundled antennas and no booster (author claim) | 15km with video (RCG claim) Competition claims see http://www.webx.dk/rc/uhf-link3/competition.htm (most made with booster) | 9km with video (RCG claim) 28.5km no video (RCG claim) Competition claims see http://www.webx.dk/rc/uhf-link3/competition.htm | 26km tested record (video, author claim) 239km claimed maximum range (author claim) | 10km (ground test) (author claim) | 43.5km with video (http://www.vimeo.com/16080459) with no external booster. (RCG claim) | Claims 10km LOS (RCG testers claim) | Claims 40 to 60km (manufacturer claim) | ||||||||||||
39 | USB or serial PC control (need a PC and a joystick) | No | No | No | yes | No | Yes | No | No | No | No | ||||||||||
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