Search found 302 matches

by g1hbe
Sat Feb 17, 2018 4:09 pm
Forum: SDRuno
Topic: Does SDRuno Software Allow For Continuous Tuning ?
Replies: 21
Views: 2043

Re: Does SDRuno Software Allow For Continuous Tuning ?

Just leave the LO unlocked and tune up or down as required. You should be able to go anywhere without any locking or unlocking being necessary.
by g1hbe
Sat Feb 17, 2018 10:55 am
Forum: SDRuno
Topic: Does SDRuno Software Allow For Continuous Tuning ?
Replies: 21
Views: 2043

Re: Does SDRuno Software Allow For Continuous Tuning ?

AFAIK, there is no requirement to stop anywhere and re-calibrate. You can just keep tuning and the LO will position itself as you go.
by g1hbe
Thu Feb 15, 2018 12:53 pm
Forum: SDRplay related
Topic: Access to raw data of RSP1
Replies: 3
Views: 634

Re: Access to raw data of RSP1

I can't answer most of your questions but I do know that the RSP's are tuner-based hybrids. That is they use superhet-type techniques to produce a low IF (or zero IF) signal which is then sampled. Link to schematic: http://www.sdrplay.com/docs/SDRplay_RSP_Schematics_r2p3.pdf The MSI1001 is a tuner c...
by g1hbe
Tue Feb 13, 2018 10:33 pm
Forum: General
Topic: Spike on 120.000 mHz
Replies: 3
Views: 686

Re: Spike on 120.000 mHz

One of the RSP's converter oscillators runs at 120 MHz, so it may be that. Not sure about the RTL stick - probably something similar, maybe a clock oscillator harmonic.
by g1hbe
Fri Feb 09, 2018 12:06 pm
Forum: New Users' experiences
Topic: Bad Experience so far.
Replies: 7
Views: 1073

Re: Bad Experience so far.

Don't feel bad. My experience with the team has been nothing but positive, with questions answered within hours and bug reports acted upon quickly. It seems you have been extremely unlucky.
by g1hbe
Thu Feb 08, 2018 9:13 am
Forum: SDR Antennas
Topic: W6LVP active loop antenna
Replies: 2
Views: 2423

Re: W6LVP active loop antenna

Good luck with the new antenna. I've been using a Wellbrook 1530 for many years and it has literally saved my hobby. The noise on my wire antennas (and the mini-whips I have built) is horrendous, but the loop just ignores most of it and it has dropped from s8-9 to s1. And as it's on a rotator I can ...
by g1hbe
Fri Feb 02, 2018 7:07 pm
Forum: SDR Antennas
Topic: Bias-T powered filter and an Active Antenna on Port B
Replies: 2
Views: 676

Re: Bias-T powered filter and an Active Antenna on Port B

There will only be a problem if the filter cannot pass DC through to your active antenna OR the filter has a DC path to earth, which would short the DC and possibly damage the bias T. Can I ask is the filter a MW rejector or a MW bandpass filter? And what band are you hoping to listen to? Cheers Andy.
by g1hbe
Thu Feb 01, 2018 7:55 pm
Forum: SDRuno
Topic: am i doing something wrong ? sdruno with SDRplay 1
Replies: 3
Views: 527

Re: am i doing something wrong ? sdruno with SDRplay 1

Andre I agree with Paul - those regularly-spaced 'rumbles' are probably just harmonics of a local interference source. Bear in mind that 20m is pretty poor after dark - I've just quickly looked and the band is almost empty. Try 40m (7MHz), you should hear activity there, especially above 7200 where ...
by g1hbe
Thu Feb 01, 2018 3:26 pm
Forum: SDRuno
Topic: PMR 446 Mhz
Replies: 4
Views: 893

Re: PMR 446 Mhz

That's strange - I find my RSP2 very sensitive on 446 and I hear lots of activity. Those spikes don't look right though - does your USB lead have ferrites on both ends? Try re-arranging your leads to see if you can get rid of that noise. Reduce that 'gain reduction' setting as well, see if signals e...
by g1hbe
Sat Jan 27, 2018 12:01 am
Forum: SDRuno
Topic: frequency selection glitch in 1.22
Replies: 10
Views: 1687

Re: frequency selection glitch in 1.22

I've found that the step size on USB is set to 100KHz randomly. I'm not sure what causes it.

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