Well,
As part of my Es'hail-2 experiments, I am now preparing a DATV TX system for the satellite. I've ordered a Spectrian linear amplifier which seems to be the way to go, it looks like this but isnt here yet:
![]()
But in the mean time, I have been playing with an eBay sourced "wi-fi booster":
![]()
I have modified this to be permanently in TX by shorting pins of the op-amp as per many published explanations:
![]()
and simply connected this between the 23cm output port on the Portsdown and the Wi-Fi antenna that came with the amplifier.
Firstly, to test all is well with the setup, I have set the Portsdown to:
![]()
![]()
![]()
![]()
![]()
As part of my Es'hail-2 experiments, I am now preparing a DATV TX system for the satellite. I've ordered a Spectrian linear amplifier which seems to be the way to go, it looks like this but isnt here yet:
But in the mean time, I have been playing with an eBay sourced "wi-fi booster":
I have modified this to be permanently in TX by shorting pins of the op-amp as per many published explanations:
and simply connected this between the 23cm output port on the Portsdown and the Wi-Fi antenna that came with the amplifier.
Firstly, to test all is well with the setup, I have set the Portsdown to:
- Frequency 146.5MHz
- Modulation: DVB-S
- Encoder: MPEG-2
- Output to: Lime Mini
- Source: TestCard
- SR 1000
- FEC 7/8
- Lime Gain 88
This feeds from the 2M output port of the Portsdown to the linear I made back here and then to the 2M beam on the mast.
I have connected a "white stick" antenna thats on the house somewhere to the input of the MiniTiouner from here and these are the results:
Perfection!
Now, I change the Portsdown TX frequency to be 2407.75 MHz, change the antenna on the MiniTiouner to be a 2.4GHz patch on the bench:
and this is the result:
With a suitable piece of wire shoved into the front input socket on the spectrum analyser I can see the 2.4GHz signal I am transmitting:
So I am really not sure why I can't decode the TV signal on the MiniTiouner - any ideas anyone?
