Shop our Airplanes Products Drone Products Sales
Thread Tools
Dec 30, 2012, 07:13 PM
RC FPVer
Quote:
Originally Posted by timtimtim
At checkout

"Warning: Now Close to the Christmas,all parcel the delivery time may up to 1-2 months,even you select the EMS shipping method;maybe the DHL is good choice,just email to us if you like to use it."
I ordered a little over a week ago and it said the same thing, I requested DHL shipping and it made to the states in just 5 days for me. Not sure if closer to the New Year now it will be the same or not.
Sign up now
to remove ads between posts
Dec 30, 2012, 07:23 PM
Registered User
Never mind
Dec 31, 2012, 08:43 PM
Registered User
What have you guys used to hold up the receiver antenna in an upright position? Is it true that the two parts of the antennas need to be at a 180 degree angle from one another? I'm having trouble understanding how to mount the receiver antenna. I see the pictures, but I see some that are vertical and some that are horizontal...? Which is correct?
Dec 31, 2012, 09:53 PM
Registered User
Locko's Avatar
Quote:
Originally Posted by Drifter99
What have you guys used to hold up the receiver antenna in an upright position? Is it true that the two parts of the antennas need to be at a 180 degree angle from one another? I'm having trouble understanding how to mount the receiver antenna. I see the pictures, but I see some that are vertical and some that are horizontal...? Which is correct?
this works for me
Dec 31, 2012, 10:09 PM
Registered User
Quote:
Originally Posted by Locko
this works for me
That is similar to my current plan. Thank you!

Also, do you power your receiver with a 3S battery? I was noticing that the specs say that it should be 5V. Does the ESC step the voltage down from a 3S battery?
Jan 01, 2013, 12:26 AM
Registered User
blackjackr's Avatar
Yes is does usually about 5.5 or so.
Jan 01, 2013, 04:55 PM
RC FPVer
Do I need both grounds coming out of the Tx module going into my TH9x remote? I only used the 1 ground, ppm and v+ and tested it at home and seemed fine. However, when I flew a test flight today I was losing connection at even less than 600 feet and I had to switch on high mode, and still lost connection under 800 feet.
Jan 01, 2013, 04:59 PM
Registered User
Daemon's Avatar
A bad ground wouldn't affect your range. It would simply not work at all.
Most likely cause of extremely short range on UHF control systems is a broken
antenna (often where you can't see it), or a very Rf noisy flight camera.

ian
Jan 01, 2013, 05:12 PM
RC FPVer
Quote:
Originally Posted by Daemon
A bad ground wouldn't affect your range. It would simply not work at all.
Most likely cause of extremely short range on UHF control systems is a broken
antenna (often where you can't see it), or a very Rf noisy flight camera.

ian
Gotcha, well I don't think it's an issue with any of my onboard components such as a camera. I had the Rmilec on this plane previously and got over a mile with it, started hitting some limits with it, and chose this one instead. So the only thing that has changed is the UHF.

Where am I looking for a break or issue? On the receiver antenna, tx? I have the receiver antenna rear mounted vertically on the tail, and my Tx from the remote was also mounted vertically. I have 1 extension sma cable to get the Rx antenna all the way to the tail, but that's it. Whats the best way to narrow this down or troubleshoot it? Thanks,
Jan 01, 2013, 09:26 PM
RC FPVer
I just did some more testing in micro power mode. With only 1 servo and the battery/esc plugged in, and the Rx plugged directly into the antenna - I was able to get maybe 10 feet before failsafe, and the controls responded very jittery after a few feet away. I got the same results with everything plugged in and on, video, camera etc. I then did a test on just normal low power mode. Plane was inside, and I walked outside with the ground station and Tx. I was around 10-30% RSSI just 10 feet outside the house, maybe 50 feet total and 3 walls between.

Does this sound like this shows something wrong? I mean obviously after my flight today and only getting 600 feet before failsafe, something is off. I looked at both the Tx and Rx, and nothing looks fried or lose, the SMA connections on both feel fine, so I kinda don't know what to do at this point. BTW these are brand new, and my first flight with it was today.
Jan 01, 2013, 09:32 PM
9W2DLR
Quote:
Originally Posted by surf1punk
I just did some more testing in micro power mode. With only 1 servo and the battery/esc plugged in, and the Rx plugged directly into the antenna - I was able to get maybe 10 feet before failsafe, and the controls responded very jittery after a few feet away. I got the same results with everything plugged in and on, video, camera etc. I then did a test on just normal low power mode. Plane was inside, and I walked outside with the ground station and Tx. I was around 10-30% RSSI just 10 feet outside the house, maybe 50 feet total and 3 walls between.

Does this sound like this shows something wrong? I mean obviously after my flight today and only getting 600 feet before failsafe, something is off. I looked at both the Tx and Rx, and nothing looks fried or lose, the SMA connections on both feel fine, so I kinda don't know what to do at this point. BTW these are brand new, and my first flight with it was today.
10 feet in micro power mode and 1 servo are low i can get at least 20++ must be something wrong somewhere
Jan 01, 2013, 09:35 PM
FPV junkie
m_beeson's Avatar
can you post a picture of your receiver?

I would like to see a closeup of the sma elbow, looking straight down on it.

If you lay your receiver on a surface, and look straight down on it, then that is the angle that I am interrested in, with a closeup of the sma elbow.

Quote:
Originally Posted by skellator
10 feet in micro power mode and 1 servo are low i can get at least 20++ must be something wrong somewhere
Jan 01, 2013, 09:55 PM
9W2DLR
Quote:
Originally Posted by m_beeson
can you post a picture of your receiver?

I would like to see a closeup of the sma elbow, looking straight down on it.

If you lay your receiver on a surface, and look straight down on it, then that is the angle that I am interrested in, with a closeup of the sma elbow.
why do you need this? I'm not the one having range problem or just to check on something? of yes i post the pics later
Jan 01, 2013, 09:57 PM
RC FPVer
Sure here you go, 3 angles, shrink wrap is still on though.
Jan 01, 2013, 10:28 PM
FPV junkie
m_beeson's Avatar
Quote:
Originally Posted by surf1punk
Sure here you go, 3 angles, shrink wrap is still on though.
I can't examine it as good as i would like, but i don't see any signs of the neck pulling out.

That was a real issue with the chainlink v2 receiver.

I'd say give your antennas a tiny snug to see if you can get a better connection.

if that doesn't do it, then I'd be looking at the receiver antenna first as the culprit.


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Yippee! NEW DRAGON LINK ADVANCED: Full Telemetry, Bluetooth, Droid Planner, Data Modem JettPilot FPV Equipment 59383 Today 10:30 PM
New Product ChainLink UHF Long Range System siim227 FPV Talk 2853 Jul 01, 2013 04:23 PM
New Product ChainLink--The new UHF narrow band long range system BEVRC FPV Talk 878 Jun 08, 2013 06:53 PM
New Product UHF Long range JR / Futaba module Hooks FPV Talk 18 Aug 13, 2012 05:46 AM
Sold [VDS]LRS thomas scherrer UHF + 2 receivers long range LTS49 FPV Equipment (FS/W) 8 Jul 22, 2011 03:55 PM