Makes total sense, wish I knew all that before..I ordered the same vtx which comes with a new antenna, should be arriving tomorrow so hopefully everything goes smooth. We shall see

ok the vtx came in with a new antenna as well as my hdo2 with rapidfire. my first question is, if I need to replace the vtx, do I just desolder the old vtx out of what looks like a vtx holder? the new vtx looks like it fits right in there.



and lastly, since my hdo2 came in I decided to try and see if I can get image with the same quad that was giving me low rssi issues which was with the scout goggles. well once paired up with the new hdo2 and rapidfire, I was able to fly inside and into the other room with no issues really. didn't lose image, only thing was that rssi was pretty low, in the 40s the whole time, even when I was standing right next to the quad. I did not put the new antenna on either, I wanted to see if the old antenna would work with the new hdo2 and it seems like it does, just low rssi. Is rssi suppose to be high all the time? not sure if flying inside makes a difference with wifi, 2 smart tvs, laptop running. but that's my current environment. cant test outside due to snow. so that's gonna have to wait a few weeks.

(30-Dec-2020, 01:06 AM)Antek55 Wrote: my first question is, if I need to replace the vtx, do I just desolder the old vtx out of what looks like a vtx holder? the new vtx looks like it fits right in there.

The original VTX is on mounting board so yes, just desolder that VTX and solder in the new one. It can sometimes be a bit of a challenge to remove the old VTX from one of those mounting boards. You need to try and heat all the solder connections at the same time being careful to to rip any pads off the mounting board.

(30-Dec-2020, 01:06 AM)Antek55 Wrote: and lastly, since my hdo2 came in I decided to try and see if I can get image with the same quad that was giving me low rssi issues which was with the scout goggles. well once paired up with the new hdo2 and rapidfire, I was able to fly inside and into the other room with no issues really. didn't lose image, only thing was that rssi was pretty low, in the 40s the whole time, even when I was standing right next to the quad. I did not put the new antenna on either, I wanted to see if the old antenna would work with the new hdo2 and it seems like it does, just low rssi. Is rssi suppose to be high all the time? not sure if flying inside makes a difference with wifi, 2 smart tvs, laptop running. but that's my current environment. cant test outside due to snow. so that's gonna have to wait a few weeks.

RSSI should be high when you are next to the quad. If this is happening while still using the original VTX then that might be why. You won't know until you replace the VTX. Otherwise it could just be an RSSI scaling issue.

Got it, thanks alot. Do I solder the red, black, and yellow wires onto the vtx before or after mounting the vtx in place to the board? This is my very first time soldering, nervous just thinking about it. Gonna wait a few days and watch as many videos as possible. Any household items you have in mind that I can practice on?

I'm not sure where you are, but you can get practice boards for pretty cheap. Something like this:

https://www.unmannedtechshop.co.uk/produ...ice-board/

Make sure you get leaded solder, too. That lead-free stuff is trash.

(30-Dec-2020, 02:18 AM)Antek55 Wrote: Do I solder the red, black, and yellow wires onto the vtx before or after mounting the vtx in place to the board?

It doesn't matter but I would solder the VTX onto the mounting board first and then solder the wires on afterwards, then you won't have annoying wires getting in your way while you are trying to solder the VTX down to the mounting board.

(22-Dec-2020, 05:19 AM)luispequeno Wrote: Last, i sure would like to hear your opinion in the reception differences between the FS box goggles vs. FS HDO.

So for the few days that's I've been flying indoors I did notice a pretty big difference in reception quality with the hdos. There much better than the scout goggles. I would fly down the hall into another room and would get a lot of lines, maybe 30-40% snow on the scouts. With the hdos I get almost perfect image with no lines while flying the same route.Although I feel like the image on the scouts is a bit brighter. I haven't changed any settings on the hdos though. But I'm happy I bought them, no regerts here.

I attempted to remove the old vtx from the mount and yea that was no good, must have heated it up too much and the mount broke in half. luckily the new vtx came with a mount. I was able to get the vtx on the new mount and its pretty solid. doesn't look to good but everything is connected as it should be. when plugging in a battery, I'm not getting the full beeps in the beginning, only the first 3. the Last 2 chirps don't happen at all. Do I have to flash firmware or do anything on betaflight after installing a new vtx?

Make sure the ESC-to-FC wiring harness is properly plugged in. Re-seat it by unplugging and re-plugging both connectors. If that seems to be OK, check if you are seeing any LED activity on the FC when you plug in a LiPo.

(02-Jan-2021, 07:24 PM)SnowLeopardFPV Wrote: Make sure the ESC-to-FC wiring harness is properly plugged in. Re-seat it by unplugging and re-plugging both connectors. If that seems to be OK, check if you are seeing any LED activity on the FC when you plug in a LiPo.

I did reconnect the wiring harness but nothing changed. when I would plug in a lipo, no LED lights would light up on the quad. But I ended up desoldering everything, it was a total crap job with solder points looking like ice cream cones. I do have a question before I attempt to resolder.

Do I need to tin the inside edges (small half circles) of this mount before soldering the actual vtx into place? Also, not sure why but betafpv changed the mount and now it only has 3 screw holes and when mounting to the quad since the angle of the vtx mount has changed, the dang antenna doesnt even reach!

the mounting board is only needed for a cleanish build.
personaly i would use the vtx without the mounting board, solder the wires directly to the vtx.

(04-Jan-2021, 11:08 PM)hugnosed_bat Wrote: the mounting board is only needed for a cleanish build.
personaly i would use the vtx without the mounting board, solder the wires directly to the vtx.

ok, i tried that, still no last 2 chirps when plugging in a lipo, when i plug in the usb on the quad to connect to betaflight and plug in a lipo i get all 5 chirps like a normal start up.

Unfortunately those are the symptoms of a fried 5V regulator or Schottky diode on the FC. With just a LiPo plugged in (no USB cable) use your multimeter to check if you are getting a reading of 5V on one of the 5V pads.

(05-Jan-2021, 01:52 AM)SnowLeopardFPV Wrote: Unfortunately those are the symptoms of a fried 5V regulator or Schottky diode on the FC. With just a LiPo plugged in (no USB cable) use your multimeter to check if you are getting a reading of 5V on one of the 5V pads.

I will have to pick one up tomorrow, what could have caused that? I only took out the vtx, never touched the FC. Was it from bad soldering if it's a fried 5v regulator?

(05-Jan-2021, 02:57 AM)Antek55 Wrote: I will have to pick one up tomorrow, what could have caused that? I only took out the vtx, never touched the FC. Was it from bad soldering if it's a fried 5v regulator?

Maybe bad QC, maybe you did something by mistake. Who knows. The 5V regulator on some of these boards seems to be fragile. The only fix is either to replace the 5V regulator / Schottky diode components (needs precise soldering and ideally a hot air rework station), use an external 5V regulator to inject 5V into the FC, or get a new FC. If you hadn't already desoldered / resoldered everything I would suggest you go back to the vendor and get a replacement under warranty, but that might be difficult now.