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Thanks for your reply
I want ask you about other thing
I have Sangean ATS-909X radio I can receive some HF ham radio , but how can I improve the receiving by using external antenna , if I can build one or I bye a ready one , which one is better for this radio.
On Aug 11, 2017, at 5:04 PM, Jim Smith G0OFE <sdr-radio@...
The RTLs dont cover below about 24Mhz unless they have been
specifically modified, and even then it recieves very badly on
frequencies below that.
Jim, Bournemouth, Dorset. IO90BR.
Elad FDM-S2, Perseus/FM+, SDRPlay and Funcube Dongle SDR
8-element OP-DES for Band 2, 12-ele ZL Special for 2m, plus
Wellbrook 1530 Loop for LF
In the beginning I would like to thank you all about this great
group which provide a good information.
I'm beginner user of SDR, I have (NooElec NESDR SMArt Bundle)
I'm using as software SDRSharp,
I can listen to VHF without any problem, but when I want to listen
to HF I can not catch any signal.
I'm using below setting
When I use this setting the screen look like there is many signals
but there is no any real signal from armature radio . as below.
I'm using comet gp-9 antenna.
My questions is
1-how can I use my SDR to listen to HF armature radio ?
2- How to findout the correct shift number which I should set ?
What antenna should I use if my antenna not good for SDR ?
My location is Jeddah, Saudi Arabia.
And sorry for my English language is not good .
Thanks for your help