Search found 90 matches

by tim_rtd
Fri Aug 10, 2018 9:13 pm
Forum: Troubleshooting Help
Topic: Shift in Frequency Display
Replies: 2
Views: 2115

Re: Shift in Frequency Display

AZDT, perhaps things are a little backwards in your entry. 148.MHZ is 2m Band.
173 is outside the ham bands...
by tim_rtd
Fri Aug 10, 2018 9:09 pm
Forum: RTL-SDR Discussion
Topic: plutosdr
Replies: 1
Views: 1532

Re: plutosdr

You need to use an older version of sharp...I'm running 1583.....ALSO has to be a 32 bit version of sharp.
I'm running it now..
by tim_rtd
Wed Jul 04, 2018 2:41 am
Forum: Signal Identification Help
Topic: 3600 Bd FSK
Replies: 2
Views: 3271

Re: 3600 Bd FSK

Telemetry from a Predator drone.
by tim_rtd
Sun May 20, 2018 1:16 am
Forum: Troubleshooting Help
Topic: Dropped samples
Replies: 2
Views: 1339

Re: Dropped samples

-d is not a ser # .....even if you've reprogrammed the ser # of each new dongle
The # that's listed on the left when you do a rtL_test is the -d #.
by tim_rtd
Mon Mar 05, 2018 10:24 pm
Forum: RTL-SDR Discussion
Topic: MTBF - Mean Time Between Failure
Replies: 2
Views: 1772

Re: MTBF - Mean Time Between Failure

I could come up with some good data like a climatologist if you could give me an idea what a good MTBF # would be :>}
by tim_rtd
Sat Mar 03, 2018 2:37 pm
Forum: Troubleshooting Help
Topic: rtl sdr v3 bias tee driver not working
Replies: 6
Views: 3739

Re: rtl sdr v3 bias tee driver not working

If you have rtl_biast then you probably have rtl_eeprom -s ....you can change the ser# of the dongle. Help you figure out which is -d 0 -d 1 ..
by tim_rtd
Fri Mar 02, 2018 10:24 pm
Forum: Troubleshooting Help
Topic: NooElec NESDR SMArt - Error: Cannot access RTL device
Replies: 4
Views: 4235

Re: NooElec NESDR SMArt - Error: Cannot access RTL device

I know its been a month ago you made your entry.
Whenever I see that reg read /write stuff on rtl_test. To me , it means you've got low voltage getting to the dongle.
Plug it into an active usb hub.
I've seen this a few times...always the fix
by tim_rtd
Fri Mar 02, 2018 9:47 pm
Forum: Troubleshooting Help
Topic: rtl sdr v3 bias tee driver not working
Replies: 6
Views: 3739

Re: rtl sdr v3 bias tee driver not working

You could try to RMB and run as admin.
You could open a cmd window and change directory to where this file is and type the cmd rtlbiast. Then be able to read the error.
by tim_rtd
Fri Mar 02, 2018 9:32 pm
Forum: RTL-SDR Discussion
Topic: Do I need a coverter?
Replies: 3
Views: 2173

Re: Do I need a coverter?

I haven't played the direct sampling lately which I believe that thing is using when in HF mode but I remember some complaining of poor reception. So, make sure whatever app your using that its in direct sample I or Q.... NOT in Quadrature. In direct sampling you don't need any lo shift of 120Mhz/ 1...
by tim_rtd
Fri Mar 02, 2018 3:48 am
Forum: RTL-SDR Discussion
Topic: Do I need a coverter?
Replies: 3
Views: 2173

Re: Do I need a coverter?

If you can get it to work at all..the answer is no.....but may help. I hope this helps :>} .....the antenna in the picture is useless for HF