Search found 128 matches
- Wed Jul 24, 2019 6:12 pm
- Forum: General
- Topic: RSP-2 HiZ Input Question: 1:9 Balun and Grounding ?
- Replies: 7
- Views: 30890
Re: RSP-2 HiZ Input Question: 1:9 Balun and Grounding ?
Hi Mikeladd, the thread address you uploaded does not work, pse check, thank
- Wed Jul 17, 2019 6:53 pm
- Forum: SDR Antennas
- Topic: A FOOLPROOF ANTENNA SWITCH
- Replies: 30
- Views: 220348
Re: A FOOLPROOF ANTENNA SWITCH
HI Mike, Your experience is very informative and clearly shows the risks and pitfalls in circuit design. Reliability analysis, based on MIL specs, was done in the company I was working for several years and the most difficult process was that of finding an optimum balance between component count and...
- Tue Jul 16, 2019 6:42 pm
- Forum: SDR Antennas
- Topic: A FOOLPROOF ANTENNA SWITCH
- Replies: 30
- Views: 220348
Re: A FOOLPROOF ANTENNA SWITCH
Hi glovisol, I agree with Mike that two series capacitors are needed to avoid the danger of shorting the bias voltage. I also note that with the circuit as is now the antenna common lead is shorted to the 12 V supply common lead and this could bring noise in. It would be advisable to put a choke in ...
- Mon Jul 15, 2019 7:41 pm
- Forum: SDR Antennas
- Topic: A FOOLPROOF ANTENNA SWITCH
- Replies: 30
- Views: 220348
Re: A FOOLPROOF ANTENNA SWITCH
Hi Tech_Support, I am glad you have eliminated posts with controversial arguments that do nothing but creating confusion and ill feelings among forum members. With sincere appreciation,
Thomas
Thomas
- Sun Jul 14, 2019 9:30 pm
- Forum: General
- Topic: Decoding Meteor Satellites with RSP Receivers and SDR Sharp via RTL_TCP server
- Replies: 8
- Views: 75239
Re: Decoding Meteor Satellites with RSP Receivers and SDR Sharp via RTL_TCP server
Thanks to Mike and to RSP2user for the information and also kudos for very impressive images!
- Sun Jul 14, 2019 9:25 pm
- Forum: Spectrum Analysis
- Topic: Evaluating RF filters?
- Replies: 19
- Views: 119325
Re: Evaluating RF filters?
Mike, it seems to me that your filter is low pass filter, e.g. suppresses MW & higher band to let you get the LW band. I am under the impression, .maybe I am wrong, that Franko wants a high pass filter, to suppress MW in order to listen to HF from 1.9 MHz & higher, as shown by glovisol.
- Sat Jul 13, 2019 6:00 pm
- Forum: SDR Antennas
- Topic: LW-MW-SW Relay Tuned 15' Noise Reducing Vertical Antenna
- Replies: 57
- Views: 338255
Re: LW-MW-SW Relay Tuned 15' Noise Reducing Vertical Antenna
Hi Phil & Gianfranco, it seems to me that this thread, that had to be closed, because it had become "toxic" according to some guys, is by contrast showing a lot of useful information on small antennas. This is a lesson to us all that a good discussion on technical problems and data is only "toxic" f...
- Thu Jul 11, 2019 1:21 pm
- Forum: General
- Topic: Decoding Meteor Satellites with RSP Receivers and SDR Sharp via RTL_TCP server
- Replies: 8
- Views: 75239
Re: Decoding Meteor Satellites with RSP Receivers and SDR Sharp via RTL_TCP server
What antenna are you using? Nice images!
- Wed Jul 10, 2019 10:56 am
- Forum: SDR Antennas
- Topic: LW-MW-SW Relay Tuned 15' Noise Reducing Vertical Antenna
- Replies: 57
- Views: 338255
Re: LW-MW-SW Relay Tuned 15' Noise Reducing Vertical Antenna
Phil,
Thanks a lot for your help & guidance. I am studying the references, got a lot to learn in practical antennaship & will get back to you when stronger on my legs. Seems glovisol is having a ball with your concepts!
Thanks a lot for your help & guidance. I am studying the references, got a lot to learn in practical antennaship & will get back to you when stronger on my legs. Seems glovisol is having a ball with your concepts!
Re: hdsdr?
LNA gain depends on noise level of your antenna. Get a signal and then adjust for best S/N.
For mouse you should go to the mouse controller & change settings.
For mouse you should go to the mouse controller & change settings.