Search found 236 matches

by Paul
Sat Mar 10, 2018 1:08 pm
Forum: General
Topic: Spikes
Replies: 2
Views: 1151

Spikes

As our lovely SDRplay RSP's are of course "computerised," is it safe to presume that computer produced "interference" is inevitable, or is this down to the computer used? If it is in fact inevitable, what, if any measures can be taken to ameliorate this? Any suggestions or answer...
by Paul
Tue Mar 06, 2018 7:12 pm
Forum: SDR Antennas
Topic: active antenna
Replies: 9
Views: 3894

Re: active antenna

Hi Barry/Barrie This is the long-wire antenna that I have feeding into my HI-Z Port: https://www.ebay.co.uk/itm/SHF-80-The-Winning-Low-Noise-HF-Longwire-antenna-for-SWL-TX/192468332135?hash=item2cd001ae67:g:NkAAAOSwPgxVTQxD I am well satisfied with it (RX only - I am neither licensed to transmit on ...
by Paul
Mon Mar 05, 2018 5:34 pm
Forum: SDR Antennas
Topic: active antenna
Replies: 9
Views: 3894

Re: active antenna

Hi Barrie I am hesitant to make recommendations based on my shallow experience. However, I have one of these - https://www.ebay.co.uk/itm/MiniWhip-Active-Antenna-Assembled-in-Box-HF-LF-VLF-mini-whip-sdr-RX-portable/222469570201?hash=item33cc383e99:g:YugAAOSwc-tY63MT It works very well (well grounded...
by Paul
Mon Mar 05, 2018 7:49 am
Forum: General
Topic: RFI
Replies: 6
Views: 2236

Re: RFI - The last word - probably

[quote="g1hbe"][quote]Hi again Paul. Closely-spaced spikes are often the product of computer displays" Right on the money Andy.. Just "enjoyed" two days of no electricity thanks to Storm Emma and operating on battery power alone, with no other local electrical interference s...
by Paul
Sun Mar 04, 2018 5:15 pm
Forum: SDRuno
Topic: frequency selection glitch in 1.22
Replies: 10
Views: 3626

Re: frequency selection glitch in 1.22

Hi Al Fairly new to this as well. If I understood your post correctly, this is how to do what I believe that you want to do. In whatever mode you may be, simply right-click to the left of the tuned frequency shown in the "RX Control Panel" and a drop-down list of frequency steps will appea...
by Paul
Wed Feb 28, 2018 8:21 am
Forum: SDRuno
Topic: general audio output tone control
Replies: 4
Views: 1337

Re: general audio output tone control

Hi Roger
Have you experimented with he HP Filter control, located within the "Sett" menu of the RX Control panel?
Use either mouse L/R keys or wheel to increment/decrement - this does have a tonal effect.
I hope this may be of help to you.
by Paul
Tue Feb 27, 2018 6:16 am
Forum: General
Topic: RFI
Replies: 6
Views: 2236

Re: RFI

https://www.flickr.com/photos/137437642@N06/40510944811/in/dateposted-friend/ "Clearish" spectrum and returned "Noise Humps" https://www.flickr.com/photos/137437642@N06/40510946011/in/dateposted-friend/ Is the "Hump" shape suggestive of a source, or is it a silly (not u...
by Paul
Tue Feb 27, 2018 4:36 am
Forum: General
Topic: RFI
Replies: 6
Views: 2236

Re: RFI

I'll keep this short as I do understand the complexity of these issues. Just for the record, the "noise humps," previously referred, to are actually present from 5 to 12 Mhz and which were absent yesterday afternoon and evening have reappeared this morning, there is no change to my setup a...
by Paul
Mon Feb 26, 2018 5:23 pm
Forum: General
Topic: RFI
Replies: 6
Views: 2236

Re: RFI

Thank for the responses. Back in the "classroom" - Hand up: The longwire comes indoors directly to a 9:1 balund - there is an abpprox 5M coax feed inside the room - a converted attic, with only the laptop and power sources, which are always in use - no adjacent televisions or other electro...
by Paul
Mon Feb 26, 2018 7:38 am
Forum: General
Topic: RFI
Replies: 6
Views: 2236

RFI

i do appreciate just how complicated this issue is and just how variable local environmental issues (not forgetting self-created ones), but is there any known issue, whether with the RSP or generally that at least throughout the VLF nad MF bands creates 1 Khz spikes? Not that I'm without other issue...

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