an update:
https://www.facebook.com/octag…ny/posts/2259534837401981
it seems Octagon came out with a new firmware for their SF8008 capable os receiving SR down to 100!!!
Beiträge von i2NDT
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how precise is that SDR RX?
last time we measured it was only +1KHz off at 1GHZ.
it's an RTL-SDR.com V3 with precise TCXO.
I also used a LimeSDR mini (I haven't measured it yet) and it I found the same offset with the 2 LNB.
Claudio
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I have tried 2 different LNB and they were some 80KHz and some 300KHz out of frequency: I checked them against the CW beacon on my SDR RX! and the second one is a GM-201.
so, even the original crystals are not very precise!
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just received today:
https://it.aliexpress.com/item…a12b8&transAbTest=ae803_4
shipped on jan. 22 and arrived today feb. 5 by trackable mail.
as far as I can measure:
freq. loss
2410 MHZ => - 5.5 dB
2310 - 4 dB
1985 - 30 DB
1700 - 50 dB
pcb size 25x38 mm
other measuremts are beyond my possibilities!
Claudio
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What would be required is a LEO satellite (polar orbit) that can receive on the uplink band and can do analysis of the signal.
there was such a thing onboard thr ISS: https://marconissta.com/
unfortunately it was disconnected in early february...
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and than if you want to know where to put the chicken...
Power Density Calculator:
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just a recommendation: when you receive your board BEFORE switching it on check immediately the stabilizer IC which should be a 3,3V one.
last year I received 2 boards from 2 different shops which had a 5V IC...and the ADF4351 accepts a maximum of 3,6V!!!
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after several attemps to make it work on my PC...I decided to give up with this software.
it's a pity as it looked really interesting!
Claudio
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here the CPU-Z screen shot:
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let's see if markro92 has some specs or minimum requirements...
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it's win7 HOME edition 64bit 8gb ram...
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I am afraid I have to give up...
after a few seconds having "opened the device" the software crashes and this is the result: I cannot even record the debug windows...
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OK now it opens up!
now I need time to understand how to use it!!
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CPU Intel Core i7 720QM
here is a screenshot:
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sorry Marcel but on my PCs it doesn't even start!
I downloaded the full version and tried it on my "dual core" first and than on my i7.
both PC have win7 home 64bit.
I suppose I need to install some special dll or other softwares???
ClaudioPS
this is the first time I try it!
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i was referring to the one suggested by PE4WJ:
https://www.ebay.com/sch/i.htm…smitter+Receiver&_sacat=0
the EP-AB003 you suggested might be OK.
Claudio
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Hi David,
I have heard people talk about this unit:
https://www.ebay.com/sch/i.htm…smitter+Receiver&_sacat=0
No experience with it myself though.
73,
Wouter Jan PE4WJ
this modules are meant for FPV and I guess, because they handle FM signals, they are not "linear" amplifiers.
more over they use REVERSE sma connectors, thus you need adaptors (more losses) or you will not be able to connect your devices!
Claudio
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there is also this one:
https://www.minikits.com.au/eme227-12cm
which doesn't look that bad except that it's good only for Es'hail-2 traffic: it doesn't work under 2400MHz due to the SAW filters used...
