Search found 17 matches

by EastPier
Mon Jan 15, 2018 1:30 pm
Forum: SDR Antennas
Topic: Balanced Line Sharing of RSP2 with Rig. Yaesu FT 840
Replies: 5
Views: 1598

Re: Balanced Line Sharing of RSP2 with Rig. Yaesu FT 840

Hi Adrian As a newbie to SDR I recommend you use it in listening mode for some time before transmitting into the antenna!. I have been licensed for 55 years and will probably spend the next 6 months using my newly purchased RSP2 to check out RFI sources in the shack. The first RFI problem has alrea...
by EastPier
Sat Nov 04, 2017 5:44 pm
Forum: SDR Antennas
Topic: Balanced Line Sharing of RSP2 with Rig. Yaesu FT 840
Replies: 5
Views: 1598

Re: Balanced Line Sharing of RSP2 with Rig. Yaesu FT 840

Not sure how the twinlead is going to connect but look into one of these devices. https://www.dxengineering.com/parts/dxe-rtr-2 http://www.mfjenterprises.com/Product.php?productid=MFJ-1708 http://www.ebay.com/itm/Antenna-sharing-device-QSK-TX-RX-switch-For-SDR-and-Radio/122558706221?ssPageName=STRK...
by EastPier
Thu Nov 02, 2017 10:16 pm
Forum: SDRuno
Topic: 1.2 Doesn't work properly - can I download original again please?
Replies: 5
Views: 724

Re: 1.2 Doesn't work properly - can I download original again please?

Hello Adrian, I suggest that you open up a support ticket. This will almost certainly be a settings issue as 1.2 has a different registry map from 1.13. What I can assure you of is that nothing whatsoever has changed within the core signal processing engine, so if you are having a problem leading t...
by EastPier
Thu Nov 02, 2017 9:37 pm
Forum: SDRuno
Topic: 1.2 Doesn't work properly - can I download original again please?
Replies: 5
Views: 724

Re: 1.2 Doesn't work properly - can I download original again please?

Adrian, Looking at your video, I notice that you have the fatal combination of listening to AM with the receive frequency and the local oscillator frequency being the same. The software that removes the "centre spike" on a Zero IF signal will also remove the AM signal's carrier. Try offse...
by EastPier
Thu Nov 02, 2017 7:10 pm
Forum: SDRuno
Topic: 1.2 Doesn't work properly - can I download original again please?
Replies: 5
Views: 724

1.2 Doesn't work properly - can I download original again please?

Hi SDRplay team I appreciate the time and effort that has gone into SDRUno 1.2. However, it doesn't work properly - I don't know what the issue is and haven't a clue around how to fix it. All I know is that receive quality is significantly degraded across all bands. As an example I have attached a c...
by EastPier
Wed Oct 11, 2017 6:09 pm
Forum: New Users' experiences
Topic: PC (laptop) power induces significant noise
Replies: 16
Views: 5897

Re: PC (laptop) power induces significant noise

Hello Adrian, The problem you all have is nothing new - it is called EMC. Many devices especially those cheap ones coming from Asia do not fulfil the requirements of the EMC-directive (Europe) or FCC (USA). They produce to much noise on the power-lines, the power-lines radiate this noise and you he...
by EastPier
Wed Oct 11, 2017 10:43 am
Forum: New Users' experiences
Topic: PC (laptop) power induces significant noise
Replies: 16
Views: 5897

Re: PC (laptop) power induces significant noise

Thanks DerekR for starting this thread. I have isolated my own noise issues by switching on and off the circuit breakers. There are two offenders: 1. the house alarm (I can switch off the breaker, as I'll be in the house when using the SDR - so no biggie there). 2. The lights in our kitchen extensio...
by EastPier
Sat Oct 07, 2017 10:49 am
Forum: New Users' experiences
Topic: PC (laptop) power induces significant noise
Replies: 16
Views: 5897

Re: PC (laptop) power induces significant noise

PC monitors or their cables can also produce interference A trick is to start a recording then switch off and disconnect everything from your PC : keyboard, mouse, monitor,speakers , etc Then play back the recording. Of course for a laptop you are limited :) I also found that sometimes interference...
by EastPier
Sat Oct 07, 2017 10:45 am
Forum: New Users' experiences
Topic: PC (laptop) power induces significant noise
Replies: 16
Views: 5897

Re: PC (laptop) power induces significant noise

Thanks very much Heinrich, food for thought. Guess all I can do is eliminate what I can. 73 Adrian
by EastPier
Tue Oct 03, 2017 1:16 pm
Forum: New Users' experiences
Topic: PC (laptop) power induces significant noise
Replies: 16
Views: 5897

Re: PC (laptop) power induces significant noise

I have the same issue and run the laptop unplugged, however I'm still plagued with interference across all band - but worst on HF, see below. I've wrapped the USB through a ferrite ring - with no effect (again, laptop is unplugged). My head is wrecked, as I have excluded any LEDs in the house etc. I...

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