Receiving Es'HailSat: Unterschied zwischen den Versionen
Dl8rds (Diskussion | Beiträge) (→Injector) |
Dl8rds (Diskussion | Beiträge) (→Injector) |
||
Zeile 35: | Zeile 35: | ||
A measurement with my Spectrum Analyzer (with tracking generator) showed that the insertion loss is around 5dB. That's quite a lot, but my expectation is that the LNB will give me a considerable boost so that this loss is not relevant. We will see. The F plug is still not here. | A measurement with my Spectrum Analyzer (with tracking generator) showed that the insertion loss is around 5dB. That's quite a lot, but my expectation is that the LNB will give me a considerable boost so that this loss is not relevant. We will see. The F plug is still not here. | ||
− | And I took another diode type: 1N4148 instead a 1N4001. The voltage is considerably lower, "just" 70V, and only a current of 300mA instead of 1A. I simply just haf those 1N4148 in stock, but they should do as well. | + | And I took another diode type: 1N4148 instead a 1N4001. The voltage is considerably lower, "just" 70V, and only a current of 300mA instead of 1A. I simply just haf those 1N4148 in stock, but they should do as well. |
+ | |||
+ | And I left the fuse out. Fusing shall be done differently, as just for this test. | ||
=== Receiver === | === Receiver === | ||
== Images == | == Images == |
Version vom 5. Januar 2019, 23:30 Uhr
Inhaltsverzeichnis
1 Scope
The new Es'HailSat from Quatar has received wide attention. Let's start to play with it. The first step is to receive it's signal.
By coincidence I purchased an LNB with a LO frequency of 9 GHz some years ago, while never using it. Now the occasion has come to really use it. Yet, some more components are missing:
- A DC injector
- A receiver component
- A satellite dish
2 Links
3 Hardware
3.1 LNB
There are vendors on Ebay who sell modified LNBs for a small price:
https://www.ebay.de/itm/ATV-LNB-3cm-Amateurfunk-10GHz-analog-digital-DX-mit-Schutzschacht/233077898628
3.2 Injector
This component needs to be home built.
And here it is:
A measurement with my Spectrum Analyzer (with tracking generator) showed that the insertion loss is around 5dB. That's quite a lot, but my expectation is that the LNB will give me a considerable boost so that this loss is not relevant. We will see. The F plug is still not here.
And I took another diode type: 1N4148 instead a 1N4001. The voltage is considerably lower, "just" 70V, and only a current of 300mA instead of 1A. I simply just haf those 1N4148 in stock, but they should do as well.
And I left the fuse out. Fusing shall be done differently, as just for this test.