Search found 128 matches

by JEL
Sun Oct 28, 2018 12:31 am
Forum: RTL-SDR Discussion
Topic: Listening to airband in Belgium ?
Replies: 1
Views: 2319

Re: Listening to airband in Belgium ?

mode: AM
bandwidth: 12500
by JEL
Thu Oct 25, 2018 5:32 am
Forum: Troubleshooting Help
Topic: Reception problem nearby signals
Replies: 9
Views: 5628

Re: Reception problem nearby signals

One thing that just dawned on me: The AGC tab... (the one below Audio tab) Do you have "Use AGC" switched ON? If not; then try that. Set the threshold to something lower than the noise-floor (or just turn it as low as it goes while testing; -160) Decay and slope values are not really important durin...
by JEL
Thu Oct 25, 2018 4:54 am
Forum: Troubleshooting Help
Topic: Reception problem nearby signals
Replies: 9
Views: 5628

Re: Reception problem nearby signals

JEL, do you think if I could get a more robust SDR I would solve this problem? rtlsdrblog knows more about this than I do. I'm not sure. I have no issues receiving with either a 'cheap' SDR or the AirspyR2 that I mainly use. I don't have any airports within listening-distance though, so I have no a...
by JEL
Tue Oct 23, 2018 5:56 pm
Forum: Troubleshooting Help
Topic: Reception problem nearby signals
Replies: 9
Views: 5628

Re: Reception problem nearby signals

Yes, I have the "filter audio" ON. Ok, too bad it wasn't as simple as that. increasing the RF GAIN to 17dB I solve the problem of nearby aircraft I can't say that makes any sense to me (that an increase in gain let's the too-strong signals come through) but sometimes the world of radio-signals is m...
by JEL
Mon Oct 22, 2018 6:53 pm
Forum: Troubleshooting Help
Topic: Reception problem nearby signals
Replies: 9
Views: 5628

Re: Reception problem nearby signals

Do you have "filter audio" (in the audio-tab) ON ? It may not be related to your issue, but I sometimes run into similar problems when I have "filter audio" OFF. The problem for me is that the carrier (from nearby aircraft) can get so strong it overloads and kills the audio. With "filter audio" ON, ...
by JEL
Fri Oct 19, 2018 6:15 pm
Forum: Antennas
Topic: LNA for stock antennas
Replies: 5
Views: 17116

Re: LNA for stock antennas

Do you think that 88-108 Fm trap could help or is it useless in my case? That thing you WANT! :) When I got that myself it made a HUGE difference (improvement) I wish there were more filters available actually. BCFM is only 1 annoying band. There are also other digital broadcast-bands that are quit...
by JEL
Tue Oct 16, 2018 12:26 pm
Forum: Troubleshooting Help
Topic: SDR sharp stops playing radio after about a second
Replies: 8
Views: 5000

Re: SDR sharp stops playing radio after about a second

Does SDR# actually freeze (all graphics stop moving) or is it the sound that disappears (graphics still moving but no sound heard) ? If SDR# completely freezes, then try to start it and leave it at the empty frequency for some time. If it freezes there as well, then my guess is it's a USB problem (T...
by JEL
Mon Oct 15, 2018 4:18 pm
Forum: Signal Identification Help
Topic: wireless guitar-amp
Replies: 2
Views: 14047

Re: wireless guitar-amp

Just an update: So the signal tops around 120 MHz. It can be found as low as 30 MHz (very faint) and as high as 200 MHz (very faint) The main strength sits between 75 to 165 MHz. There are no stronger signal-spikes than those that appear in the airband. All the spikes are spaced 1 MHz apart from eac...
by JEL
Mon Oct 15, 2018 3:35 pm
Forum: Antennas
Topic: Antenna combiner
Replies: 8
Views: 20548

Re: Antenna combiner

I cam across this: https://www.dxengineering.com/parts/dxe-rsc-2 I wonder if there is a circuit since this item is about $80. I read it as being useful only if used with an antenna-system which is in phase, such as this setup (2 wires, same length, same position, same everything basically): https:/...
by JEL
Sat Oct 13, 2018 1:49 pm
Forum: Signal Identification Help
Topic: wireless guitar-amp
Replies: 2
Views: 14047

wireless guitar-amp

I think I just got hit by a wireless guitar-amp system (probably used by a neighbor) It splattered at regular freq-intervals from at least 78 MHz to 160 MHz (I didn't have enough time to search further before it stopped) I don't know what the actual broadcast-freq might have been (if it IS in fact a...