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Posted by yosemitez | Jun 16, 2018 @ 02:59 PM | 1,008 Views
Martian v 220
AKK FX2-ultimate VTX
Crossfire Micro RX
Bardwell F4 Flight Controller

Martian 220 . Crossfire . AKK FX2 (2 min 18 sec)

Posted by yosemitez | May 27, 2018 @ 12:46 PM | 961 Views
Martian v 220
AKK FX2-ultimate VTX
Crossfire Micro RX
Bardwell F4 Flight Controller
Posted by yosemitez | May 13, 2018 @ 05:09 PM | 1,213 Views
Another TBS Crossfire Mini RQly and RFMD chart from flight on 5/8/18

What is interesting is that flight one was farther, about 1.6 mile, but shows less signal loss.
Again RQly and RFMD are the important numbers here. RQLY got down to 76 while RFMD never dropped below 1, this is good.
This article explains it all
Posted by yosemitez | Apr 28, 2018 @ 06:48 PM | 2,359 Views
this is from 4 flights and shows Rqly, Rfmd, Rssi, and TMWR which i think is transmit power?
Flights 1 and 2 are only about 3,500' in distance but are 2,000' up in elevation, a mountain flight so i was never more than 400' AGL.
Flight 3 is pretty much straight out and about 1.2 mile out.
From what i have read if RQLY is below 80% when RFMD is 1 or 0 it is time to turn back. RFMD reads as 2 on the top and then 1 on the lower and it never goes to zero.
RFMD = 2 , 150Hz Mode, fast updating
RFMD = 1, 50Hz Mode, long range
If RFMD = 0, 4Hz Mode (no telemetry)

This article explains it all
Posted by yosemitez | Apr 25, 2018 @ 04:11 PM | 1,813 Views
crossfire micro, X220, 600mw vtx foxeer, 1300mh battery, eachine vtx antenna
ground station is immersion diversity with truerc canada X-AIR 5.8 and patch
still had great video and you see the readouts from the crossfire in the chart. battery is only limiting factor
here is a great article on the relationship between rqly and rfmd
Posted by yosemitez | Apr 18, 2018 @ 01:53 PM | 1,725 Views
external beeper not working fix
after changing from oneshot to dshot the beeper by switch or confirmation on gyro calibration was lost. do a cli dump and you should see these commands, if not add them and then beeper will work again

beeper RX_LOST
beeper ARMING
beeper BAT_LOW
beeper RX_SET
beeper ARMED
beeper ON_USB
Posted by yosemitez | Apr 16, 2018 @ 01:16 PM | 1,698 Views
EDIT 4.25.18 just flew with this camera using 4k stabilized and i this camera is horrible, the quality sucks, only get if you cant afford a yi 4k+
just tested the edge after a 2 month shipping delay from gearbest. the image quality is horrible compared to the t5e and yi 4k+, way over sharpened, the images are almost unusable , the image stabilization seems to have some jello, not near as good as the yi 4k+

it also records the video files in .mov now, mov files do not play well on my computer

Posted by yosemitez | Dec 31, 2017 @ 12:45 PM | 2,022 Views
installed another TBS Crossfire Micro in another build and took it for a test flight and i was getting these weird vibes sometimes, like maybe the the rx and tx were not updating fast enough, happened 1/2 mile out. here is the log from the 2 flights showing, rssi, rqly and rfmd
Posted by yosemitez | Dec 24, 2017 @ 11:54 AM | 2,689 Views
X220 - TBS Crossfire Micro - 2K Flight

Finally pushed out past 1K and made it to 2K, only limiting factor was battery. It was 3.90 when i landed. Still had perfect video and the logs from the Taranis received from the TBS Crossfire Micro looked good from what i know.

The TrueRC - 5.8 GHz X-Air has really made a big difference as if you stay in the beam the reception is stellar.

TBS Crossfire Micro - u.fl connector - stock antenna in dipole configuration on lower back plate
Omnibus F4
600mw eachine VTX
Swift 2
Stock motors and Esc's
4s, 1300mah battery
RC-L1 LIGHT WEIGHT TRANSMITTER - http://www.com-spec.com/rcplane/products.html

7" monitor
Immersion 5.8 diversity
Aomway 5.8GHz CP Patch
TrueRC - 5.8 GHz X-Air 10dBic Crosshair Antenna - RHCP (SMA)
Posted by yosemitez | Dec 21, 2017 @ 08:43 PM | 2,009 Views
this is with antenna in dipole config, only 1,200' distance but 2,500' altitude gain
Posted by yosemitez | Dec 14, 2017 @ 09:14 PM | 2,590 Views
logs with antenna in 90 degree orientation

these are some logs from todays flight with the tbs crossfire micro. i have the taranis setup to log the telemetry from the tbs crossfire. from what i have read the rqly and rfmd are the 2 most important values to monitor for signal strength. these logs show the 2 and this was not a long flight at all, it was just playing around doing some rolls and flips going out about 1/2 mile

i am not sure how to read these that well yet, the image shows a brief explanation of them. rfmd 0 is a very slow update rate while 2 is super fast, super low latency. rqly below 70% is pushing it but some folks go below 60%
Posted by yosemitez | Dec 05, 2017 @ 06:07 PM | 4,424 Views
TBS Crossfire Link Quality (LQ) Taranis Call Out Warnings
A how to on youtube

First up why LQ and not RSSI, well LQ is Link Quality and it gives you a better representation of the RC link than the RSSI (received signal strength indicator) RSSI values don't take noise floor into consideration so you've never really got an accurate measure of your link by just looking at RSSI

RQly is the Link Quality value
RFMD is the crossfire link mode
0 = 4Hz
1 = 50Hz
2 = 150Hz
When RFMD in in 150Hz mode (2) LQ does not matter and does not need to be monitored.

Logical Switches:
L01: Monitors the Crossfire frequency mode, it then activates when RFMD is NOT in 150Hz mode
L02: Active when LQ is less than 80% and not in RFMD 2 mode, (a pre warning)
L03: Same as L02 but with the critical warning level at 70%
70% is considered the critical level for LQ
The 0.5 is a delay so that you not getting warnings when you get a quick drop in RF

Special Functions:
This does the actual call out to the speaker
SF01 will play sound "RF Low"
SF02 will play sound "RF critical"
The !1x means it wont play at startup
Check your LQ indicator ("Link Quality") to assess your link's health in regards to closeby external interference. The LQ goes from 0% (no signal) to 100% (full signal). Any value above 80% can be considered safe to fly, large drops below that indicates you are reaching the limits of your radio link. Also check your SNR indicator ("Signal to Noise Ratio") for your margin above the noise floor (far away external interference). The CROSSFIRE's LQ will deteriorate once the SNR reaches 0. Anything above 3 is good. The theoretical limit is -6dB. The RSSI indicates the signal strength of the antenna on the frequency that it is listening on. A high RSSI and low LQ indicates high interference, a high RSSI with high LQ indicates very good noise conditions. The RSSI goes from +10 to -130, in a logarithmic scale, with every further 6dB reduction indicating a doubling of your existing range.
Posted by yosemitez | Nov 28, 2017 @ 10:34 AM | 2,564 Views
X220, Omnibus f4, Crossfire Micro

getting ready to try some long distance flying

this is equipped with this transmitter which i have now used for years and has saved my quads countless times, even a mile out i was able to quickly find it. it is used in conjunction with the PR-100A RECEIVER $249.95 and even though it costs a lot it is well worth it and could be shared among friends. you will never loose your quad again as with other systems if you crash and the battery is ejected you will never find it.
RC-L1 LIGHT WEIGHT TRANSMITTER,1 Milliwatt Output, 6 Week Battery Life, $75
Posted by yosemitez | Nov 24, 2017 @ 12:02 PM | 4,577 Views
update 11.27.17
flies great, not sure if i notice a difference with the crsf protocol but it did fly very smooth and responsive. had the taranis set to rssi alarm at 80% and it only invoked once going out 1/2 mile behind some trees.

works as wired, i tried tx/rx3 and tx/rx6 and no luck

Pin 1 (receiver TX) goes to one of the flight controller UART RX
Pin 2 (receiver RX) goes to one of the flight controller UART TX
Power up the Flight controller, the CF Receiver will have a RED light (not bonded)
Push the button on the Crossfire , can also be done though lua
Power on the receiver and push the bind button (no need to power up with button pressed like FrSky)
The button will turn blue, the receiver LED will turn green.
This means the bind is done but the TX needs to update the firmware on the RX module over the air (magic!).
Push the Crossfire TX button to confirm the update, wait a couple of minutes until it turns green again.
download tbsagent, lug into back of CF TX, update both TX and RX

taranis x9d+
open tx 2.2 latest
internal rf off
external set to crsf , ch1 -8
rx and tx are bound (both green), see both in tx under crsf lua
configured rx to output 1 and 2= crsf tx/rx , 100mw
Channel Map Dat.Ch. 8 RSSI

betaflight 3.2.2
serial set to uart 6
receiver mode set to> serial based rx
serial receiver set to> crsf
In Receiver tab set the RSSI channel to 8, now you can see the RSSI
Posted by yosemitez | Nov 13, 2017 @ 04:56 PM | 2,838 Views
eachine x220, betaflight 3.2.2, dynamic filter, notch 1 and 2 off, dshot150
eachine x220, betaflight 3.2.2, dynamic filtering on (0 min 50 sec)

Posted by yosemitez | Sep 10, 2017 @ 01:05 PM | 2,813 Views
wizard x220 camera mount with YI 4K +, used those soft lading pads cut a notch out then rubber bands, works well
used in the ascent of tioga peak video
Posted by yosemitez | Aug 11, 2017 @ 01:52 PM | 2,764 Views
eachine wizard x220 - rc-l1 com-spec.com

been using a tile on my eachine wizard x220 but it has a very limited range. will now install this rc-l1, 1 mile range!, transmitter from com-spec.com. i used to have its big brother on my qav400 and it led my right to it when lost over a mile out, several times.

this shows the size compared to the tile mate.
Posted by yosemitez | Jun 23, 2017 @ 04:23 PM | 4,686 Views
YI 4k Plus vs Thieye 5TE comparison

First a comparison of the jpegs showing cropped and then no post processing, just reduced in size. 2nd set is just reduced to 2100 x 1575 (3.3 MP), no processing.

The Thieye looks like it does processing in camera, iso 400 sharpness soft, AWB.
The Yi 4k+ , iso 400, color flat, low sharpening, shutter auto. For color it has YI or flat, with flat AWB is disabled. You can also shoot JPG with DNG (raw).

Next set is the YI dng file converted to jpg and resized
Posted by yosemitez | Jun 22, 2017 @ 12:28 PM | 4,024 Views
Eachine Wizard X220 6.22.17