RXLoss in short range | ExpressLRS Community | Page 1

thorny slate Apr 11, 2024, 3:33 AM

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Hi guys, im new here and with elrs, i just completed set up a BNF Geprc Cinelog35 with elrs and take a test flight today. But im only getting 20
-30 meter range before getting RXLoss status and the failsafe kicks in.

Here are my setup:

Jumper T20s at 250 mw, 250 Hz, 1:64 telem ratio
Arming on aux 1
both tx and rx on 3.3.2 Firmware

Heres the recording:

https://youtu.be/AGkbMUhuqAY

Just realized that even im close to the drone the rssi is very low.

What did i do wrong?

YouTube

Ardian Putra Prananto

Geprc cinelog Bad range

▶ Play video

next ginkgo Apr 11, 2024, 3:37 AM

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Do a !benchtest and put RSSI dBm in your OSD, not RSSI

blissful forumBOT Apr 11, 2024, 3:37 AM

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Follow this tutorial to bench test your hardware before you fly:
https://www.expresslrs.org/quick-start/pre-1stflight/#bench-test

next ginkgo Apr 11, 2024, 3:37 AM

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And show some clear photos of your receiver and antenna

thorny slate Apr 12, 2024, 1:04 AM

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I'm getting -70 dBm at 25 mW on bench test

next ginkgo Apr 12, 2024, 1:06 AM

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One or both antennas are broken and/or there is a hardware issue

thorny slate Apr 12, 2024, 1:06 AM

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Here’s the antenna

next ginkgo Apr 12, 2024, 1:07 AM

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Show the receiver itself

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Do you have any other ELRS TX or RX?

thorny slate Apr 12, 2024, 1:08 AM

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Here’s the rx

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Not at the moment, but will try to borrow other RX

next ginkgo Apr 12, 2024, 1:10 AM

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thorny slate Here’s the rx

You almost certainly have the wrong target flashed

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Can you put the receiver in WiFi mode and show a screenshot of the !webui

blissful forumBOT Apr 12, 2024, 1:11 AM

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Connect to your transmitter's or receiver's WiFi network to access the web UI:

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Instructions: https://www.expresslrs.org/quick-start/webui/#how-to-get-to-the-web-ui

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https://cdn.discordapp.com/attachments/798006228450017290/1028561424768835645/TX_Module3.0.jpg

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https://cdn.discordapp.com/attachments/798006228450017290/1028561424517169183/RX_Module3.0.jpg

next ginkgo Apr 12, 2024, 1:13 AM

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You want the GEPRC Nano 2.4GHz PA100 RX target

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You probably have the regular Nano target flashed

thorny slate Apr 12, 2024, 1:53 AM

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it's currently on Generic ESP, will try to flash the PA100

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I’ve dlashed the PA100 still getting -70dBm

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Turn out i have a spare RP4TD RX, and getting the same result

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Is this indicating that i have faulty TX?

next ginkgo Apr 12, 2024, 2:12 AM

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thorny slate Is this indicating that i have faulty TX?

Open up your radio and verify the antenna is connected

next ginkgo Apr 12, 2024, 2:13 AM

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thorny slate it's currently on Generic ESP, will try to flash the PA100

This firmware was ok

thorny slate Apr 12, 2024, 3:08 AM

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HA! The antenna was not connected now im getting -20 to -27dBm which is far better right?

next ginkgo Apr 12, 2024, 3:10 AM

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Much better

thorny slate Apr 12, 2024, 3:10 AM

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Oh btw, since it was unplugged since the day i bought and i have turn it on a couple of minutes long during setup. Sinc im powering up the TX with the antenna not connected, Will it damaged the module?

next ginkgo Apr 12, 2024, 3:11 AM

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Possibly, although your bench test result is good. Keep an eye on it, but I think it's mostly ok

thorny slate Apr 12, 2024, 1:22 PM

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Allright thanks for the help!

split rover Apr 15, 2024, 6:13 PM

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bro i'm having the same issues

#RXLoss in short range