Es'hail 2 band plan and guidelines

RustySpoons

RustySpoons

Sleepy Hollow
My Satellite Setup
50E - 30W
2x CM 1.2m Polar Mount/Jack
65E- 65W
Gibertini 1m OP100 - STAB HH100 - Inverto Black Ultra 0.2 Twin
Mutant HD51
Edision Primo IP S2
Dreambox DM800HD
Venton Unibox HD2
Sony Bravia 55" 4K
My Location
South Wales
Anyone got any thoughts as to what size dish is going to be needed for the downlink in NW Europe?
 
Analoguesat said:
Anyone got any thoughts as to what size dish is going to be needed for the downlink in NW Europe?
Click to expand...

Will probably be a Yagi opposed to a dish.
 
RustySpoons said:
Will probably be a Yagi opposed to a dish.
Click to expand...


12/13cm uplinking requires quite a bit of gain and directionability from a yagi so has to be very well constructed.
It might be preferred in Europe but in the US an ex-TVRO mesh antenna would be the cheapest way to get a signal out there.

Both types will require a similar dual axis tracking system, but with the Yagi array there is the added combining and phase distribution.
 
Channel Hopper said:
12/13cm uplinking requires quite a bit of gain and directionability from a yagi so has to be very well constructed.
It might be preferred in Europe but in the US an ex-TVRO mesh antenna would be the cheapest way to get a signal out there.

Both types will require a similar dual axis tracking system.
Click to expand...
Agreed, but a quite simple Yagi is all that will be needed for the downlink.
 
Ordered some cheap (£3ish) PLL LNB's to mess around with, 25MHz crystal inside should work fine for this.
Might put a 24/23MHz crystal on one of the form some 10GHz DATV stuff.
 
Cheap PLL LNB's turned up, work well in 10GHz band :)

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Once you get it working & pics/ tv from Es'hail 2 will you write up a how to please? :)
 
Analoguesat said:
Once you get it working & pics/ tv from Es'hail 2 will you write up a how to please? :)
Click to expand...
Absolutely, currently building a DATV transmitter for a few different bands as well, it's based on the Portsdown project, hopefully one day
I will be able to send some video up to Es'hail 2

Was using the GPIO pins on the Pi earlier to generate RF and was receiving it on my SDR! crazy what a Pi can do.
 
It would be mega cool if you sent the forum logo & we couild watch it :D :-rofl2
 
RustySpoons said:
Absolutely, currently building a DATV transmitter for a few different bands as well, it's based on the Portsdown project, hopefully one day
I will be able to send some video up to Es'hail 2

Was using the GPIO pins on the Pi earlier to generate RF and was receiving it on my SDR! crazy what a Pi can do.
Click to expand...

That Portdown transmitter looks fascinating. :)
 
Analoguesat said:
That Portdown transmitter looks fascinating. :)
Click to expand...
Install the Portsdown software on a Pi, put a LCD on top (Waveshare 3.5") and have a play, plug in a RTL-SDR and receive DATV if there is any in your area.
 
RustySpoons said:
Install the Portsdown software on a Pi, put a LCD on top (Waveshare 3.5") and have a play, plug in a RTL-SDR and receive DATV if there is any in your area.
Click to expand...


Bugger all I would imagine - there are only 2 amateur radio clubs in the area in a 30 mile radius. This is a very low population area - the entire population of the Borders is only about 130k & the 2 reasonable size towns (Galashiels & Hawick) are both less than 20k
 
Analoguesat said:
Bugger all I would imagine - there are only 2 amateur radio clubs in the area in a 30 mile radius. This is a very low population area - the entire population of the Borders is only about 130k & the 2 reasonable size towns (Galashiels & Hawick) are both less than 20k
Click to expand...
You can transmit/receive across the room with just 2 Pi's if you're bored, look at this. Not me by the way!
 
Probably the easiest way to get a TX is to use DATV-Express with a LimeSDR or ADALM_PLUTO. The latter was £70 +VAT from Mouser but has limited bandwidth due to USB2. If it's for Es'hail 2 then 2Ms/s is the plenty. Using a LimeMini I could get about 4Ms/s on an i3 laptop but you should get more by using a better PC.
About - DATV-Express digital-ATV project
I've used the TBS6983/6903 down to 125ks/s but they don't blind scan very well at that symbol rate.
 
s-band said:
Probably the easiest way to get a TX is to use DATV-Express with a LimeSDR or ADALM_PLUTO. The latter was £70 +VAT from Mouser but has limited bandwidth due to USB2. If it's for Es'hail 2 then 2Ms/s is the plenty. Using a LimeMini I could get about 4Ms/s on an i3 laptop but you should get more by using a better PC.
About - DATV-Express digital-ATV project
I've used the TBS6983/6903 down to 125ks/s but they don't blind scan very well at that symbol rate.
Click to expand...
Im considering the Lime SDR Mini as I don't need below 10MHz
My friend has a DATV Express, but I think he wishes now he'd gone down the Lime route.
 
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