PCB ADS-B 1090MHz Antenna

F

FUNG SAI HOU

New Member
Hello,

Anyone using this PCB ADS-B 1090MHz Antenna?

I just got mine and haven't try the performance. I have to pack it into the PVC Conduit / Pipe and sealed it as water will affect the performance of the antenna.


TB2qJnbjFOWBuNjy0FiXXXFxVXa_!!592990365.jpg


Hopefully it will work as good as advertised.

Regards.
 
FUNG SAI HOU said:
Hello,

Anyone using this PCB ADS-B 1090MHz Antenna?

I just got mine and haven't try the performance. I have to pack it into the PVC Conduit / Pipe and sealed it as water will affect the performance of the antenna.


View attachment 2770

Hopefully it will work as good as advertised.

Regards.
Click to expand...
Why not to first try it for few hours without packing in a PVC pipe. In few hours, water is not going to affect it.

Later you can encase in PVC pipe and try again. This will help you to know if the PVC pipe affects performance, and how much.

You should also compare its performance with a bench-mark antenna of known performance, installed at same location.
 
ab cd said:
Why not to first try it for few hours without packing in a PVC pipe. In few hours, water is not going to affect it.

Later you can encase in PVC pipe and try again. This will help you to know if the PVC pipe affects performance, and how much.

You should also compare its performance with a bench-mark antenna of known performance, installed at same location.
Click to expand...

Hi ab cd,

I tested it with just place the antenna outside of the window (facing west direction). In my case, in front of the window is another block of residential houses, the performance is so so.

The antenna performance can get the from this link. The range is not as good as 360° on top of the roof as it only place outside of the window.

I bought it from taobao. You can get it from this ebay link.
 
Great, thanks.

Can you please now replace it by a 1/4 ground plane (spider or cantenna) at same location and compare performance?
 
ab cd said:
Great, thanks.

Can you please now replace it by a 1/4 ground plane (spider or cantenna) at same location and compare performance?
Click to expand...

Hi ab cd,

What you mean is swap the 1/4 gp antenna to the existing pcb antenna and see any changes to the range?

Or get another pi to run with only the gp antenna? I ask this because the rb24 range will not change after the range is plot.

I will try with another pi and see then I will place a new link for you to compare. Regards.
 
It is better to use same location, same coax, same dongle and same Pi. You can change the station number of Pi by deleting its key, and you will get a new station number with zero polar plot.

You can delete the current key from file /etc/rbfeeder.ini and reboot the pi, and it will get you new key and new station number.

Before you delete the old key, dont forget to copy-paste the existing key and station numbet in a text document on your computer. When you want to get back your existing station, edit file /etc/rbfeeder.ini, delete new key, and copy paste old key, save file, and reboot. You will get back your old station number.

.

Here is the detail:

Code: 
sudo nano /etc/rbfeeder.ini

Above command will open file rbfeedr.ini which will have key and stn as shown below

Code: 
[client]
network_mode=true
log_file=/var/log/rbfeeder.log

key=C E N S O R E D

sn=EXTRPI400063

[network]
mode=beast
external_port=30005
external_host=127.0.0.1
 
ab cd said:
You can delete the current key from file /etc/rbfeeder.ini and reboot the pi, and it will get you new key and new station number.

Before you delete the old key, dont forget to copy-paste the existing key and station numbet in a text document on your computer. When you want to get back your existing station, edit file /etc/rbfeeder.ini, delete new key, and copy paste old key, save file, and reboot. You will get back your old station number.

.

Here is the detail:

Code: 
sudo nano /etc/rbfeeder.ini

Above command will open file rbfeedr.ini which will have key and stn as shown below

Code: 
[client]
network_mode=true
log_file=/var/log/rbfeeder.log

key=C E N S O R E D

sn=EXTRPI400063

[network]
mode=beast
external_port=30005
external_host=127.0.0.1
Click to expand...

Hi ab cd,

FYI, this feeder is the ComStation Xrange from AirNav (PGANRB400063).

I will get another new "Station" by installing it in Windows based. Once the range chart is plotted, I will share the link to you.

Regards.
 
FUNG SAI HOU said:
Hi ab cd,

FYI, this feeder is the ComStation Xrange from AirNav (PGANRB400063).

I will get another new "Station" by installing it in Windows based. Once the range chart is plotted, I will share the link to you.

Regards.
Click to expand...
Oh oops... I missed PGANRB ..., thought it is EXTRPI ... :(
 
Oh, now I understand your limitations. Thanks for explaining.

Can you please now remove 1/4 wl gp and in its place connect the pcb antenna, keeping everything else same. This will give a true comparision. You can reset the VRS range plot to start fresh with pcb antenna.
 
This is my ADSB PCB Antenna receiving range plot after 12 hours. FYI, East & West side is blocked by 4 storey residential apartment. For North West direction which is OPEN no obstruction. North direction is blocked by a 25 storey condominium. My house is just few hundred meters away from the condominium. It affects the reception range.

***Most important is my antenna is just place outside of Window, and still under roof 4-5 foot long away from the window pane (roof tile covered by zinc sheet at bottom).***

Each Ring is 50NM apart.

PCB ADSB Antenna Plot Range.png
 
Anyway, I will place it outside once I got the conduit & all accessories. Then I will post it here to compare with these two under roof reception.
 
FUNG SAI HOU said:
This is my ADSB PCB Antenna receiving range plot after 12 hours. FYI, East & West side is blocked by 4 storey residential apartment. For North West direction which is OPEN no obstruction. North direction is blocked by a 25 storey condominium. My house is just few hundred meters away from the condominium. It affects the reception range.

***Most important is my antenna is just place outside of Window, and still under roof 4-5 foot long away from the window pane (roof tile covered by zinc sheet at bottom).***

Each Ring is 50NM apart.

View attachment 2776
Click to expand...
Thanks for posting results of VRS range plot.

Comparing the range plot of pcb with 1/4 w gp, both are almost identical.

This is with both the antennas indoor. It will be interesting to see how the two antennas compare when both installed outdoor.
 
ab cd said:
Thanks for posting results of VRS range plot.

Comparing the range plot of pcb with 1/4 w gp, both are almost identical.

This is with both the antennas indoor. It will be interesting to see how the two antennas compare when both installed outdoor.
Click to expand...

Yeah, I also waiting for my conduit and end cap. Then can compare the range when place outside and at higher point.
 
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