{"id":2319,"date":"2026-01-28T12:53:27","date_gmt":"2026-01-28T10:53:27","guid":{"rendered":"https:\/\/drongrif.com\/expresslrs-elrs-full-review-and-comparison-with-other-protocols\/"},"modified":"2026-01-28T16:30:56","modified_gmt":"2026-01-28T14:30:56","slug":"expresslrs-elrs-full-review-and-comparison-with-other-protocols","status":"publish","type":"post","link":"https:\/\/drongrif.com\/en\/expresslrs-elrs-full-review-and-comparison-with-other-protocols\/","title":{"rendered":"ExpressLRS (ELRS) &#8211; full review and comparison with other protocols"},"content":{"rendered":"\n<section class=\"single-post-section__content\">\n    <div class=\"main-content\">\n        <div class=\"top-section\">\n            \n            <div class=\"date\">\n                28.01.2026            <\/div>\n        <\/div>\n\n        <div class=\"post-section\">\n            <img loading=\"lazy\" decoding=\"async\" width=\"864\" height=\"864\" src=\"https:\/\/drongrif.com\/wp-content\/uploads\/2025\/05\/grif-fpv-10inch-3kg-2319-1.webp\" class=\"attachment-1728x864 size-1728x864 wp-post-image\" alt=\"ExpressLRS (ELRS) &#8211; full review and comparison with other protocols\" srcset=\"https:\/\/drongrif.com\/wp-content\/uploads\/2025\/05\/grif-fpv-10inch-3kg-2319-1.webp 1080w, https:\/\/drongrif.com\/wp-content\/uploads\/2025\/05\/grif-fpv-10inch-3kg-2319-1-300x300.webp 300w, https:\/\/drongrif.com\/wp-content\/uploads\/2025\/05\/grif-fpv-10inch-3kg-2319-1-1024x1024.webp 1024w, https:\/\/drongrif.com\/wp-content\/uploads\/2025\/05\/grif-fpv-10inch-3kg-2319-1-150x150.webp 150w, https:\/\/drongrif.com\/wp-content\/uploads\/2025\/05\/grif-fpv-10inch-3kg-2319-1-768x768.webp 768w\" sizes=\"auto, (max-width: 864px) 100vw, 864px\" \/>\n            <h1>ExpressLRS (ELRS) &#8211; full review and comparison with other protocols<\/h1>\n\n            <p><\/p>\n        <\/div>\n\n        <div class=\"content-section\">\n                            <div class=\"context\">\n                    <h2>Article content<\/h2>\n\n                    <ul class=\"items\">\n                                                    <li>What is ExpressLRS?<\/li>\n                                                    <li>Advantages of ExpressLRS<\/li>\n                                                    <li>Specifications and compatibility<\/li>\n                                                    <li>Lua script for controlling the ELRS module<\/li>\n                                                    <li>Firmware and receiver updates<\/li>\n                                                    <li>Comparing ExpressLRS with other protocols<\/li>\n                                                    <li>Practical recommendations for choosing a protocol<\/li>\n                                                    <li>Common errors and tips for users<\/li>\n                                                    <li>Conclusion<\/li>\n                                            <\/ul>\n                <\/div>\n            \n                            <div class=\"content\">\n                    <p>When ExpressLRS first appeared as a \u201chacker\u201d experiment on GitHub in 2018, few people believed that in a few years it would become the de facto standard for most new FPV quadcopters. Today, ELRS confidently competes with the long-established Crossfire and FrSky systems, and most importantly, it remains a completely open project with an active community. In this article, we will understand what ELRS is, why the protocol \u201ctook off\u201d and whether it is really that much better than its competitors, as is often claimed on forums.  <\/p>\n<h2>What is ExpressLRS?<\/h2>\n<p>Before we delve into firmwares, antennas, and comparison charts, it\u2019s worth answering the basic \u201cwhat is ELRS?\u201d In short, ExpressLRS is an open RC protocol that runs on top of LoRa modulation. It\u2019s specifically optimized for drones, but can easily be integrated into other unmanned platforms, from land-based vehicles to underwater ROVs.  <\/p>\n<h3>History of creation and development of the project<\/h3>\n<p>The project started in 2018, when a group of developers from the OpenTX community decided to adapt LoRa for FPV needs. The first commits were primitive: one C file that pushed an 8-channel packet every 50 ms. But the philosophy of \u201copen hardware + open firmware\u201d was laid immediately. In 2022, the 2.4 GHz line of EP1\/EP2 receivers from Happymodel appeared, and by 2024, the system reached the stable 3.x branch with automatic \u201ccloud\u201d build. Now, in 2026, more than 180 developers regularly commit code, and Pull Requests check CI tests on GitHub Actions.    <\/p>\n<p>The result is rapid releases (on average once every 4-5 months) and a fairly strict &#8220;code review&#8221;, which is rare for hobby projects.<\/p>\n<h3>Basic operating principles: LoRa, MCU, TX\/RX<\/h3>\n<p>The heart of each module is the Semtech series LoRa transceivers:<\/p>\n<ul>\n<li><strong>SX1276\/78<\/strong> &#8211; for 868\/915 MHz;<\/li>\n<li><strong>SX1280<\/strong> &#8211; for 2.4 GHz.<\/li>\n<\/ul>\n<p>The microcontroller (ESP32, STM32 or RP2040) reads the bits from the transmitter, encodes them into a bit frame and sends them to the radio frequency. At the receiver, the same algorithm \u201cbinds\u201d to the Frame ID and restores the channel states. ExpressLRS is basically control + telemetry in one stream, where the priority is always on the control channels. If any part of the packet does not fit, the telemetry is discarded, but the control does not suffer &#8211; crucial for flight safety.   <\/p>\n<h3>Frequency bands: 2.4 GHz and 900 MHz<\/h3>\n<p>Although LoRa is easy to scale, the developers deliberately left two ranges:<\/p>\n<ul>\n<li>2.4 GHz \u2014 minimal latency and compatibility with stock Wi-Fi antennas.<\/li>\n<li>868\/915 MHz \u2014 almost double the link budget and better penetration through foliage and concrete.<\/li>\n<\/ul>\n<p>For pilots, this means choosing between \u201cfast and close\u201d and \u201cfurther and slower.\u201d In practice, the difference is this: 1000 Hz at 2.4 GHz is 0.8 ms of RF delay, while 50 Hz at 900 MHz is already 10-12 ms, but the range increases many times. <\/p>\n<h2>Advantages of ExpressLRS<\/h2>\n<p>Any new system lives or dies by user values, not numbers on data sheets. Below are the ones that pilots experience right away. <\/p>\n<h3>Long working range<\/h3>\n<p>In LoRa mode of 50 Hz and power of 250-500 mW, ELRS demonstrates a link budget of up to 140 dB. In practice, this is 20-30 km at 900 MHz or 10-15 km at 2.4 GHz with correctly selected antennas (panel\/moxons). Anyone who has flown in difficult terrain will confirm: the battery capacity, not the link, becomes the limit.  <\/p>\n<h3>Minimum signal delay<\/h3>\n<p>The RF part of the 1000 Hz mode fits into 0.8 ms. Add the radio OS delay (3 ms on EdgeTX) and FC processing, and we have &lt;6 ms of the junction &#8211; ESC \u2014 almost instant response. Crossfire even in CRSFShot gives at least 10 ms.  <\/p>\n<h3>Flexible telemetry modes<\/h3>\n<p>Starting from 3.3, the user chooses what is more important: frequent frames or rich telemetry. In &#8220;Race&#8221; channel packets are sent every frame, and telemetry &#8211; only after 1:128. In &#8220;Standard&#8221; &#8211; 1:32. In this case, the algorithm automatically increases the ratio if the LQ drops.   <\/p>\n<h3>Fully open source and hardware compatible<\/h3>\n<p>The effect of openness is palpable: when RP2040 boards appeared, the patch for ELRS was ready within two weeks. Closed systems can wait months for their manufacturer to \u201cofficially add support.\u201d <\/p>\n<h3>Save time on updates<\/h3>\n<p>A typical Crossfire RX upgrade via TBS Agent on a weak laptop takes 4-5 minutes. With Wi-Fi Update ELRS, everything is done from a smartphone in 40 seconds, and most pilots really keep the firmware \u201cfresh.\u201d <\/p>\n<h3>Remote VTX-Control (VTX Admin)<\/h3>\n<p>With one swipe in the Lua menu, you reduce the VTX power before landing so as not to heat up on the ground, and when taking off, you return 1 W for long-distance cruising. No \u201cbeep buttons\u201d on the video transmitter. <\/p>\n<h3>Adaptive output power<\/h3>\n<p>The Dynamic Power function increases the glide only when the LQ drops below the threshold. In combat conditions, this is an additional 3-4 minutes of flight time &#8211; a trifle, but nice. <\/p>\n<h3>Easy integration with DJI FPV system<\/h3>\n<p>Thanks to the CRSF tunnel, ExpressLRS can transmit not only OSD but also combined RSSI and RQly information to DJI Goggles, which is convenient for pilots.<\/p>\n<h2>Specifications and compatibility<\/h2>\n<p>The ELRS frame contains:<\/p>\n<ul>\n<li>Frame ID (anti-replay).<\/li>\n<li>CRC16 for integrity control.<\/li>\n<li>12-16 control channels (10- or 11-bit).<\/li>\n<li>Telemetry slot (up to 32 bytes).<\/li>\n<\/ul>\n<p>FC-RX transmission is via CRSF-Uart at 420 kbit\/s, so compatibility with Betaflight, INAV, ArduPilot is practically \u201cout of the box\u201d. Interestingly, since 2025, an \u201cSBUS-bridge\u201d mode has appeared: RX converts channels to SBUS, giving life to old controllers where there is no CRSF. <\/p>\n<p>For combat drones, weight is important: the Nano RX weighs 0.6 g with the antenna, while the Crossfire Nano weighs 3.2 g.<\/p>\n<h2>Lua script for controlling the ELRS module<\/h2>\n<p>You can configure it from a PC, but in the field it&#8217;s easier to turn the dial on the radio.<\/p>\n<p>Before opening the menu, the script checks the compatibility of Lua-API and module versions \u2014 reducing the risk of the transmitter freezing at startup.<\/p>\n<h3>Downloading and installing the script<\/h3>\n<p>The official way is this: download ELRS-v3.lua from the release, copy it to the SD card and add it to TOOLS. Then, an arbitrary key combination calls up the menu. Over the past five years, the script has become almost the main argument \u201cwhy I will stay on EdgeTX\u201d \u2014 on other firmwares, support for color screens is slightly worse.  <\/p>\n<h3>Main functions and script menus<\/h3>\n<p>In addition to Bind\/Power, here you can:<\/p>\n<ul>\n<li>Enable or disable Telemetry.<\/li>\n<li>Toggle &#8220;Home Point GPS&#8221; (with ArduPilot).<\/li>\n<li>Download RX configuration files directly from the radio via Wi-Fi (if the phone is in the &#8220;access point&#8221;).<\/li>\n<\/ul>\n<h3>Monitoring packages and module status<\/h3>\n<p>The Status page shows the RF Noise Floor. When it is higher than -90 dBm, Lua highlights the value in red: a hint that you should change the channel or move away from the 2.4 GHz Wi-Fi router. <\/p>\n<h3>How to properly configure rate and telemetry<\/h3>\n<p>There are a lot of shills here, so we will give a recommendation that worked 90% of the time in our case.<\/p>\n<p>After selecting a mode, always shut down and restart TX \u2014 otherwise the frame rate change will not be applied.<\/p>\n<h2>Firmware and receiver updates<\/h2>\n<p>Before you upload the .bin, make sure that TX is already updated to the same major version. Otherwise, the model will not start, and you will have to get out the soldering iron.<\/p>\n<h3>Why is an update even necessary?<\/h3>\n<p>ELRS is a &#8220;live&#8221; project. In 2025 alone, hundreds of issues were closed, including critical ones (stack-overflow at 1000 Hz). If you are a movie fan and cannot afford packet-loss, you should update immediately after the stable release.  <\/p>\n<h3>Betaflight pass-through &#8211; how it works and when to use<\/h3>\n<p>The method is ideal for \u201cstacked\u201d toothpicks, where RX is soldered. Configurator opens the controller\u2019s COM port, then \u201cSerial Passthrough\u201d \u2014 and RX receives its firmware without additional wires. Disadvantage: speed is 115,200, so large firmware (250 KB) is loaded in three minutes.  <\/p>\n<h3>Wi-Fi update for ESP chips<\/h3>\n<p>This is a killer feature. We held Bind &gt;for 3 seconds \u2014 RX entered the Wi-Fi AP. We connected with a smartphone, opened 10.0.0.1, selected the bin file. The progress page will show \u201cSuccess\u201d. Next \u2014 reboot and auto-transition to normal-mode.    <\/p>\n<h3>UART and STLink &#8211; options for complex cases<\/h3>\n<p>Situation: you destroyed the Bootloader with an electric current. STLink will help here &#8211; solder SWDIO, SWCLK, RESET, GND, set Option Bytes &#8220;Read Out Protection = OFF&#8221; in the STM32Cube programmer, then upload the fresh firmware.elf. <\/p>\n<h3>Tips for stability and firmware version selection<\/h3>\n<ul>\n<li>Enable the &#8220;One Bit LQ&#8221; option only in tests &#8211; it saves 1 byte, but there is no difference in Telemetry Off.<\/li>\n<li>Forget about the Dev branch for working copters; nightly builds sometimes change the package structure without backward compatibility.<\/li>\n<li>Backup model.dump from the radio before major-update \u2014 the format changed in 3.0 &#8211; 3.1.<\/li>\n<\/ul>\n<h2>Comparing ExpressLRS with other protocols<\/h2>\n<p>In the field, Ukrainian reconnaissance brigades and FPV strike teams operate multiple communication systems simultaneously. The reason is simple: different protocols behave differently in noisy radio airspace under EW pressure. Before delving into the details of each competitor, let&#8217;s clarify the general context: command centers expect minimal latency for controlled kamikaze drones, but for reconnaissance copters, telemetry stability and the ability to quickly integrate equipment into existing software (ATAK, Delta, Kropyva) are critical.  <\/p>\n<h3>Crossfire (CRSF) &#8211; advantages and disadvantages<\/h3>\n<p>The main advantage of Crossfire is a carefully polished hardware line, in particular Diversity RX with two receivers. Back in 2018, this was a revolution. The problem is that over the past eight years, market needs have increased, and the protocol has remained closed. No third-party manufacturer can legally make \u201ctheir own Crossfire,\u201d so the price remains high. According to the 2026 price list: Micro TX V2 \u2014 $130, DiversityRX \u2014 $80. The ELRS analog (TX Pro 1 W + Dual RX) will cost $70.     <\/p>\n<h3>FrSky D8, D16, ACCESS &#8211; features and compatibility<\/h3>\n<p>FrSky has long been the king of the \u201cbudget\u201d segment. The D8 and D16 use \u201clong\u201d CRC and simple FSK. In museums this is fine, but in a modern city 2.4 GHz Wi-Fi kills them in a few minutes. ACCESS is an attempt to update the protocol. The latency has decreased, an OTA update has appeared, but without LoRa and a frame rate of 200 Hz it is more likely to compete with the FlySky AFHDS 2A than with ELRS.    <\/p>\n<h3>DSMX &#8211; reliability and safety<\/h3>\n<p>Spektrum has always been marketed as \u201cmilitary-grade quality.\u201d Indeed, film crews in the US still fly DSMX to avoid Wi-Fi interference. But the cost of the kit (TX + 3 RX) easily exceeds $500, and the 22 ms latency ExpressLRS (ELRS) for FPV: A Complete Review, Setup, and Comparison with Crossfire and Other Protocols | Drongrif Blog makes the protocol unpopular in modern FPV, especially in our realities.  <\/p>\n<h3>Comparison table<\/h3>\n<table border=\"1\" cellspacing=\"0\" cellpadding=\"5\" style=\"border-collapse: collapse; width: 100%;\">\n<thead>\n<tr>\n<th>Protocol<\/th>\n<th>Range (LoS)<\/th>\n<th>Delay (min.)<\/th>\n<th>Telemetry<\/th>\n<th>Compatibility (FC\/Software)<\/th>\n<th>Average RX price, $<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>ExpressLRS<\/td>\n<td>10-30 km (2.4\/900 MHz)<\/td>\n<td>0.8 ms 1000 Hz<\/td>\n<td>Full (GPS, battery, RQly)<\/td>\n<td>Betaflight, ArduPilot, PX4, ATAK via Mavlink<\/td>\n<td>15<\/td>\n<\/tr>\n<tr>\n<td>Crossfire<\/td>\n<td>15-50 km (900 MHz)<\/td>\n<td>6-7 ms 150 Hz<\/td>\n<td>Full but closed<\/td>\n<td>Betaflight, ArduPilot, Delta (Agent plugin)<\/td>\n<td>60<\/td>\n<\/tr>\n<tr>\n<td>FrSky ACCESS<\/td>\n<td>\u22645 km<\/td>\n<td>4-5 ms<\/td>\n<td>Limited (S.Port)<\/td>\n<td>Mostly Betaflight, partly ArduPilot<\/td>\n<td>25<\/td>\n<\/tr>\n<tr>\n<td>DSMX<\/td>\n<td>\u22644 km<\/td>\n<td>22 ms<\/td>\n<td>Basic (RSSI)<\/td>\n<td>INAV\/ArduPilot via SBUS<\/td>\n<td>45<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Practical recommendations for choosing a protocol<\/h2>\n<p>The needs of the Armed Forces, the Armed Forces, and volunteer groups often differ from those of civilians. The cost of equipment, durability in an EW environment, and the speed of operator training become key factors. <\/p>\n<p>First, consider logistics: ELRS is an open protocol, so receivers are easy to buy in bulk or even assemble in workshops based on the RP2040. Crossfire and DSMX remain expensive and require centralized supplies. <\/p>\n<p>Secondly, latency is critical for combat FPV drones, as the operator makes decisions in fractions of a second. The ExpressLRS system at 2.4 GHz in the 500-1000 Hz mode shows the lowest latency and at the same time can work with \u201c1:64\u201d telemetry enabled so that the base station receives at least RSSI. <\/p>\n<p>Third, range with minimal visibility in the spectrum is more important for reconnaissance platforms. The transition to 868\/915 MHz ELRS with a reduced frame rate of 50 Hz provides up to 30 km without retransmission, and open source allows you to quickly implement frequency hopping layout for a specific sector of the front. <\/p>\n<p>Finally, the EW risks should be assessed. Closed protocols (Crossfire, DSMX) are theoretically more difficult to jam \u201cby protocol\u201d, but targeted blocking of the 900 MHz band blocks them too. At the same time, ExpressLRS is an opportunity to quickly generate a \u201ccustom build\u201d with a non-standard bandwidth-shift, which is already used by some air reconnaissance units.  <\/p>\n<p>Below are some general tips; each list is followed by a short comment to emphasize context.<\/p>\n<h3>Kamikaze FPV attack aircraft<\/h3>\n<p>First, determine the radius of action. If the attack is planned within 3 km, the protocol should be chosen based on latency, not range. <\/p>\n<ul>\n<li>ExpressLRS 2.4 GHz, 1000 Hz, Telemetry Off, power 250 mW.<\/li>\n<li>An aluminum &#8220;mast antenna&#8221; on the ground and a hyperbolic repeater increase the stability of the link.<\/li>\n<li>Use a &#8220;unit-specific&#8221; Bind Phrase to reduce the risk of third-party connections.<\/li>\n<\/ul>\n<p>After integration, be sure to bench-test with the EW pulse antenna; this will reveal how quickly the system recovers after a short jamming.<\/p>\n<h3>Reconnaissance multicopters<\/h3>\n<p>For UAVs hovering 10-15 km from the aircraft, the power consumption of the communication system is important.<\/p>\n<ul>\n<li>ExpressLRS 868 MHz, 50 Hz, Dynamic Power On (25-500 mW).<\/li>\n<li>Telemetry ratio 1:8: GPS, battery, link stats.<\/li>\n<li>Antenna diversity on RX gives +4-6 dB and increases survivability when rotating in gusts of wind.<\/li>\n<\/ul>\n<p>Finish by calibrating the telemetry in Mission Planner so that the operator sees RQly\/RSNR in the conditional green\/yellow zones.<\/p>\n<h3>Camouflaged &#8220;ants&#8221; (ground robotic platforms)<\/h3>\n<p>Ground robots often work in complex, multi-story environments\u2014tunnels, factories, forest belts.<\/p>\n<ul>\n<li>Crossfire remains competitive thanks to 915 MHz FLRC and diversity receivers.<\/li>\n<li>However, the ExpressLRS 900 MHz with Moxon antennas shows comparable results, costs three times less and is easier to reflash in the field.<\/li>\n<\/ul>\n<p>After choosing a protocol, test the connection in &#8220;reflected&#8221; environments: concrete + metal. This is more indicative than the bare range at the range. <\/p>\n<h2>\nCommon errors and tips for users<\/h2>\n<p>Mistakes happen even among professionals, because we are all human.<\/p>\n<ul>\n<li>Wi-Fi Mode during takeoff. Make sure the LED on the RX is not blinking rapidly &#8211; this is a sign of AP mode. <\/li>\n<li>Incompatible versions. TX v3.5 will not appear on RX v2.0. <\/li>\n<li>Wrong region. Select 868 MHz for Europe region. Otherwise you will get underpowered 25 mW.  <\/li>\n<li>Cropped antennas. Some pilots shorten the length of the \u201ctail\u201d to avoid getting caught in the propellers. The result is a 15 dB drop in RSSI.  <\/li>\n<\/ul>\n<p>To avoid all four, print out the checklist and keep it in your suitcase. In a month, it will become automatic. <\/p>\n<h2>Conclusion<\/h2>\n<p>Five years has been enough time for ExpressLRS to go from an \u201cexperimental proof of concept\u201d to the de facto standard for the average FPV pilot. Low latency, open core, and Wi-Fi updates are the three pillars that keep the project going. Crossfire is still strong on 30km routes, and DSMX is still strong in Cinema, but if you\u2019re building a new fleet now, you\u2019re unlikely to choose anything other than ELRS.  <\/p>\n<p>So, to the question \u201cWhat is ELRS?\u201d everyone will answer in their own way. For some it is speed, for some it is economy, and for some it is the open-source philosophy. Choose and test. Only flights will show whether the system is right for you.   <\/p>\n                <\/div>\n                    <\/div>\n\n        <div class=\"bottom-section\">\n            963 views        <\/div>\n\n    <\/div>\n\n    <div class=\"user-actions\">\n        <div class=\"like-dislike\">\n            <button class=\"vote-btn like-btn\" data-id=\"2319\" data-vote=\"like\">\n                <span class=\"like-1\"><svg width=\"24\" height=\"24\" viewBox=\"0 0 24 24\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n<path d=\"M2.12688 12.7876L3.50688 19.3876C3.61268 19.9299 3.90424 20.4183 4.33135 20.7687C4.75846 21.1192 5.2944 21.3097 5.84688 21.3076H15.9269C16.5628 21.3057 17.1722 21.0522 17.6218 20.6026C18.0715 20.1529 18.325 19.5435 18.3269 18.9076V10.6276C18.3365 10.1809 18.2111 9.74175 17.9669 9.3676L16.2269 6.6676L14.6069 3.9076C14.3681 3.49468 14.0135 3.16088 13.5869 2.94758C13.1603 2.73427 12.6805 2.65083 12.2069 2.7076H12.0869C9.74688 3.0676 8.36688 5.4676 9.26688 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             <span class=\"title\">BpAK Grif<\/span>\n                    <\/a>\n\n                    <p>Ready-to-fly aviation complex with remote control, tablet, mast-mounted repeater, FPV goggles, and 500 drones in the set<\/p>\n\n                    <br \/>\n<b>Warning<\/b>:  Undefined array key 1 in <b>\/home\/hryf\/drongrif.com\/www\/wp-content\/themes\/Proacto-Theme\/template-parts\/blocks\/pr-products-sidebar.php<\/b> on line <b>40<\/b><br \/>\n\n                    <span class=\"price\">\n                        <i><\/i>\n                        0                     <\/span>\n\n                <\/div>\n            <\/div>\n                    <div class=\"item\">\n                <a href=\"https:\/\/drongrif.com\/en\/device\/uav-grif-m\/\" class=\"image-container\">\n                    <img loading=\"lazy\" decoding=\"async\" width=\"193\" height=\"240\" src=\"https:\/\/drongrif.com\/wp-content\/uploads\/2025\/05\/component_1-removebg-preview.png\" class=\"attachment-240x240 size-240x240 wp-post-image\" alt=\"UAV Grif-M\" srcset=\"https:\/\/drongrif.com\/wp-content\/uploads\/2025\/05\/component_1-removebg-preview.png 448w, https:\/\/drongrif.com\/wp-content\/uploads\/2025\/05\/component_1-removebg-preview-242x300.png 242w\" sizes=\"auto, (max-width: 193px) 100vw, 193px\" \/>                <\/a>\n\n                <div class=\"content\">\n                    <a href=\"https:\/\/drongrif.com\/en\/device\/uav-grif-m\/\">\n                        <span class=\"title\">UAV Grif-M<\/span>\n                    <\/a>\n\n                    <p>A complex with a Mavic charging station, a repeater and full support for combat missions.<\/p>\n\n                    <br \/>\n<b>Warning<\/b>:  Undefined array key 1 in <b>\/home\/hryf\/drongrif.com\/www\/wp-content\/themes\/Proacto-Theme\/template-parts\/blocks\/pr-products-sidebar.php<\/b> on line <b>40<\/b><br \/>\n\n                    <span class=\"price\">\n                        <i><\/i>\n 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Vulture<\/span>\n                    <\/a>\n\n                    <p>FPV drone 10 for strike missions. Operating range up to 20+ km, combat load up to 3 kg. Ideal for mass use.  <\/p>\n\n                    <br \/>\n<b>Warning<\/b>:  Undefined array key 1 in <b>\/home\/hryf\/drongrif.com\/www\/wp-content\/themes\/Proacto-Theme\/template-parts\/blocks\/pr-products-sidebar.php<\/b> on line <b>40<\/b><br \/>\n\n                    <span class=\"price\">\n                        <i><\/i>\n                        0                     <\/span>\n\n                <\/div>\n            <\/div>\n                    <div class=\"item\">\n                <a href=\"https:\/\/drongrif.com\/en\/device\/uav-grif-10-inches-pprc-anti-ewb\/\" class=\"image-container\">\n                    <img loading=\"lazy\" decoding=\"async\" width=\"240\" height=\"240\" src=\"https:\/\/drongrif.com\/wp-content\/uploads\/2025\/05\/grif-fpv-pprch-10inch-3kg-2549-300x300.webp\" class=\"attachment-240x240 size-240x240 wp-post-image\" alt=\"UAV GRIF 10 inches PPRC (Anti-EWB)\" srcset=\"https:\/\/drongrif.com\/wp-content\/uploads\/2025\/05\/grif-fpv-pprch-10inch-3kg-2549-300x300.webp 300w, https:\/\/drongrif.com\/wp-content\/uploads\/2025\/05\/grif-fpv-pprch-10inch-3kg-2549-1024x1024.webp 1024w, https:\/\/drongrif.com\/wp-content\/uploads\/2025\/05\/grif-fpv-pprch-10inch-3kg-2549-150x150.webp 150w, https:\/\/drongrif.com\/wp-content\/uploads\/2025\/05\/grif-fpv-pprch-10inch-3kg-2549-768x768.webp 768w, https:\/\/drongrif.com\/wp-content\/uploads\/2025\/05\/grif-fpv-pprch-10inch-3kg-2549.webp 1080w\" sizes=\"auto, (max-width: 240px) 100vw, 240px\" \/>                <\/a>\n\n                <div class=\"content\">\n                    <a href=\"https:\/\/drongrif.com\/en\/device\/uav-grif-10-inches-pprc-anti-ewb\/\">\n                        <span class=\"title\">UAV GRIF 10 inches PPRC (Anti-EWB)<\/span>\n                    <\/a>\n\n                    <p>Powerful drone with anti-radar capabilities. ERLS system at frequencies of 520-2700 MHz. Combat load 2.5 kg, operational flight range \u2014 25 km. <\/p>\n\n                    <br \/>\n<b>Warning<\/b>:  Undefined array key 1 in <b>\/home\/hryf\/drongrif.com\/www\/wp-content\/themes\/Proacto-Theme\/template-parts\/blocks\/pr-products-sidebar.php<\/b> on line <b>40<\/b><br \/>\n\n                    <span class=\"price\">\n                        <i><\/i>\n                        0                     <\/span>\n\n                <\/div>\n            <\/div>\n            <\/div>\n<\/section>\n<section class=\"questions\" id=\"questions-section\">\n    <div class=\"container\">\n                    <h2 class=\"section-title headline headline-h2 questions__title\">Frequently asked questions<\/h2>\n                            <ul class=\"questions__list\">\n                                    <li class=\"questions__item question\">\n                        <div class=\"question__header\">\n                            <h3>What is ExpressLRS in simple words?\r\n<\/h3>\n                            <span class=\"question__arrow\"><\/span>\n                        <\/div>\n                        <div class=\"question__answer\"><p><span style=\"font-weight: 400;\">ELRS <\/span>is a wireless &#8220;<span style=\"font-weight: 400;\">cord<\/span>&#8221; that connects your joints to the drone faster than you can blink an eye.<\/p>\n<\/div>\n                    <\/li>\n                                    <li class=\"questions__item question\">\n                        <div class=\"question__header\">\n                            <h3>How many channels does ELRS support?\r\n<\/h3>\n                            <span class=\"question__arrow\"><\/span>\n                        <\/div>\n                        <div class=\"question__answer\"><p><span style=\"font-weight: 400;\">Standard is 12. Extended mode adds 4 more for ArduPilot loops, but costs 0.5 ms of latency. <\/span><\/p>\n<\/div>\n                    <\/li>\n                                    <li class=\"questions__item question\">\n                        <div class=\"question__header\">\n                            <h3>How to update the receiver via Wi-Fi or UART?\r\n<\/h3>\n                            <span class=\"question__arrow\"><\/span>\n                        <\/div>\n                        <div class=\"question__answer\"><p>Wi-<span style=\"font-weight: 400;\">Fi<\/span>: <i>press <\/i>Bind for <span style=\"font-weight: 400;\">3 <\/span>seconds, open <span style=\"font-weight: 400;\">10.0.0.1<\/span>, fill in .bin. UART: Betaflight &#8211; CLI &#8211; serialpassthrough 1 115200, then in the Configurator select the COM port and press &#8220;Flash&#8221;.<\/p>\n<\/div>\n                    <\/li>\n                            <\/ul>\n            <\/div>\n<\/section>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":1561,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[128],"tags":[],"class_list":["post-2319","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uav"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.8.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>ExpressLRS (ELRS) for FPV: Complete Review, Setup, and Comparison with Crossfire and Other Protocols | Drongrif Blog<\/title>\n<meta name=\"description\" content=\"Detailed review of ExpressLRS (ELRS) for 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