Search found 356 matches
- Fri Oct 19, 2018 12:26 pm
- Forum: SDRuno
- Topic: Keyboard Entering Of Frequencies ?
- Replies: 1
- Views: 35
First click the tuning cursor away from the central LO frequency. This will save trouble later. Now press the space bar. This puts you in 'freq entry' mode. Then enter your 10.2 (or whatever). Then hit M on your keyboard. You should now be on your chosen frequency. Now you can choose the mode - AM, ...
All antenna connectors are female SMA, so you'll need MALE SMA leads to stick in them. The only exception is the Hi-Z connector on the RSP2 and the Duo, which is a 3-pin type like this: https://www.sdr-kits.net/Hi-Z-Connector-RSP2
I don't claim to be an expert in Windows or RSP drivers, but there's plenty of chatter about having to make sure W7 is fully updated or the drivers won't go in. Probably a few threads on here if you go back a bit.
You won't get good signals on the HF bands from a standard discone, they are for VHF only. A long wire or dipole (depending on your circumstances) is more suitable. A low noise solution is an active loop like the Wellbrook 1530.
Gazza, is this for a tuned loop with a capacitor at the top or a wideband untuned (active) loop? If it's for an untuned loop, I use a plastic hula-hoop with a turn of thick wire inside.
- Wed Sep 19, 2018 10:24 pm
- Forum: SDRplay related
- Topic: RSP-1 as a bat receiver?
- Replies: 5
- Views: 2651
My detector is a self-contained one with a pre-amp, mixer and audio amp driving a small speaker. There's high-pass filtering in the pre-amp and low-pass in the audio amp so there's no 'howl round' from speaker to mic. The local oscillator is tunable over approx 15 to 40 KHz. I've recently found a ra...
- Wed Sep 12, 2018 11:50 am
- Forum: General
- Topic: Testing RSPduo receiver sensitivity with noise generator
- Replies: 50
- Views: 6899
Glovisol, has something gone amiss with your calcs? Those attenuators won't be anywhere near 46 dB. You'd need about 5k in series.
Simplest way is to click the tuning cursor to one side of the centre LO frequency, then type in your required frequency (or tune there with your mouse wheel). You can hover your mouse over the digit you want to change and then use the wheel.
Select AM mode and the 6 KHz bandwidth setting. Or wider if there are offsets in use. Also make sure your receive frequency and the displayed LO frequency are NOT the same. If they are you will get weak reception and distortion. This catches out a lot of beginners!