Search found 58 matches

by G4ZFQ
Sat Dec 26, 2020 10:33 am
Forum: Forums
Topic: Forum Delete message
Replies: 15
Views: 2786

Re: Forum Delete message

I agree with everything you say:-)
Alan
by G4ZFQ
Mon Nov 30, 2020 8:24 am
Forum: Satellites
Topic: ISS pass prediction differs SDRC-PstRotator
Replies: 11
Views: 1076

Re: ISS pass prediction differs SDRC-PstRotator

Hummm, Looking at this thread I see a very busy person trying to avoid being even busier by asking for detailed information. Simon is generally extremely helpful. Many times I have seen a request and been surprised by how he jumps in and fulfils it. I'm not sure a coding genius can be expected to be...
by G4ZFQ
Sun Nov 29, 2020 12:13 pm
Forum: RX-666 / RX-888 (Dragonfly)
Topic: Calibration
Replies: 13
Views: 1550

Re: Calibration

Keeping it cool is the answer to drift! I fitted a small 5V fan to the USB end blowing air through. The ADC heatsink is directly in line. ~5 minutes after starting my local beacon was indicated at 1296.799231MHz. An hour later just 80Hz lower. The case is virtually at room temperature. But the signa...
by G4ZFQ
Sun Nov 29, 2020 9:04 am
Forum: RX-666 / RX-888 (Dragonfly)
Topic: Calibration
Replies: 13
Views: 1550

Re: Calibration

That's about what I found. 4ppm after 2 hours. For that check I took off both end plates to cool it down. But it is probably more sensitive to draughts in the long term. I have the intention of trying a fan to blow through. I did that on my 666 blowing on to the ADC. I've not taken the board out yet...
by G4ZFQ
Fri Nov 27, 2020 2:50 pm
Forum: Pluto
Topic: Adalm pluto installation in win
Replies: 11
Views: 1667

Re: Adalm pluto installation in win

I was confused there, just looked at my Pluto, it is USB2.
But all comments valid and have you tried external power?
Alan
by G4ZFQ
Fri Nov 27, 2020 8:03 am
Forum: Pluto
Topic: Adalm pluto installation in win
Replies: 11
Views: 1667

Re: Adalm pluto installation in win

It could be faulty but -
Have you tried another USB3 cable?
Have you tried all USB3 sockets you have?
A powered USB3 hub?
Another computer?

Alan
by G4ZFQ
Thu Nov 26, 2020 12:06 pm
Forum: Pluto
Topic: Adalm pluto installation in win
Replies: 11
Views: 1667

Re: Adalm pluto installation in win

Not even an "Unknown Device" in Device Manager?
Alan
by G4ZFQ
Wed Nov 25, 2020 12:02 pm
Forum: Pluto
Topic: Adalm pluto installation in win
Replies: 11
Views: 1667

Re: Adalm pluto installation in win

Harris,
You read the Pluto instructions https://wiki.analog.com/university/tool ... uick_start
Alan
by G4ZFQ
Mon Nov 02, 2020 7:51 am
Forum: General
Topic: Question for Simon
Replies: 11
Views: 1115

Re: Question for Simon

"S9 noise floor..dx signal s9 + 3 db.. S0 noise floor ..dx signal 1/2 s point.. What is easier to copy??" I presume you adjust to listen at the same volume. Going by the figures, assuming 1/2 S point is 3dB and it is the same transmission, they should be the same. It seems to me you are he...
by G4ZFQ
Sat Oct 31, 2020 6:19 am
Forum: General
Topic: Reverse Colours
Replies: 3
Views: 384

Re: Reverse Colours

Open the screenshot with Irfan View (Or probably many other viewers or editors) and invert the image.
Alan