During the vacation I debug the base station power amplifier, remove all of the filters and couplers, dismantled the power synthetic part of the device, in the late stage using only a MRF6S21100HS.Replace the circulator of 2400-2500.Now can be a very good job in 2.4 g.In the case of the input - 20 db can output power of 47 db.Now also need a good narrow-band chamber type filter.I bought two at a flea market, the hope can be adjusted to the needs of bandwidth.
Posts by BG0AUB
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In order to solve the focus problem.I changed the connection part of the 2.4 G.3 d printing a conversion in diameter.
I also made a small bell mouth guided wave tube.
Made some different guided wave length of the tube.
This is a book of vibration 10750 LNB, to do with the local oscillator leakage signal source.
Take the LNB spectrometer can view just to 1 g signal (lo: 9750).
Conclusion:
Compared with no guided wave focusing device.LNB bellows can bring 5-6 db gain.Small bell can bring 2-3 db gain.
So I decided to use only bell focusing.Es' hail - 2 signal strong enough.And return loss of the small bell mouth to 2.4 G feed without any image.This is the most important.
Maybe this weekend I can put it on the butterfly antenna test.Hope everything goes well -
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How can I confirm that I received eshail2? I am dizzy... I used a 120cm antenna with an elevation of 12.2 degrees
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I found you mentioned the signal.But still not sure whether from eshail2 for decoding at the same time come out many TV programs
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I am using the SR - 3602.If there is no 10.706 beacon signal.How do I know has been aimed at the eshail2?
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Very simple solution.LNB local oscillation leak...
l0=10750....
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I do is removed at the input two IPS503 Hybrid Couplers
vy73 BG0AUB
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Remarks :it is Power Amplifier Drive Level。Remove Wave filter and power amplifier of last stage。
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输入0db - ERA-5SM - AH1-G - FLL357 - MRF21045 - 输出45.8db
from taobao chinahttps://item.taobao.com/item.h…3ad4H1mhL2&id=45394655512
RMB 430