Search found 329 matches

by g1hbe
Tue Mar 07, 2017 11:31 am
Forum: SDRuno
Topic: Tuning
Replies: 3
Views: 2101

Re: Tuning

Dougg - perhaps I'm misunderstanding you, but you do know you can tune in increments of 1Hz if you want? Just hover your mouse over the required digit and roll your mouse wheel.
by g1hbe
Sun Mar 05, 2017 9:05 pm
Forum: SDR Antennas
Topic: Wellbrook loop resistance?
Replies: 2
Views: 2382

Re: Wellbrook loop resistance?

The inner of the BNC should definitely be positive 12v. Resistance-wise I get 1.4 Mohm, but the reading probably varies depending on what voltage your meter runs from. Looks like your friend's interface unit has had some reverse polarity!
by g1hbe
Thu Mar 02, 2017 8:50 pm
Forum: SDRuno
Topic: SDRUno recording settings?
Replies: 12
Views: 6057

Re: SDRUno recording settings?

Hi Steve. I can't answer your recording question, but the LO and the 'tuned' frequency should not be the same as this will put the received signal right on top of the local oscillator, which causes noise and distortion especially on weak signals. The received sig should always be off to one side of ...
by g1hbe
Thu Mar 02, 2017 1:05 pm
Forum: SDR Antennas
Topic: High Z with G5RV
Replies: 7
Views: 4872

Re: High Z with G5RV

No problem. 450 ohm into 1k is regarded as a good match, as it's only a 2:1 ratio. On receive it makes little difference anyway. Happy twiddling!
by g1hbe
Tue Feb 28, 2017 10:12 pm
Forum: SDR Antennas
Topic: High Z with G5RV
Replies: 7
Views: 4872

Re: High Z with G5RV

Ladder line is balanced, so connect across P and N. Ignore the G terminal.
by g1hbe
Tue Feb 21, 2017 4:52 pm
Forum: SDR Antennas
Topic: RSP2 Mini Active Whips +5v socket b coax on VLF
Replies: 1
Views: 2173

Re: RSP2 Mini Active Whips +5v socket b coax on VLF

Hi Wireman. I woudn't use either of the SMA sockets for low frequency stuff, simple as that. SDRPlay recommend the Hi-z input should be used for frequencies below 1.5 MHz, and by the time you get down to LW it is the only input worth using, as the SMA's give awful noise and overloading effects. Keep...
by g1hbe
Fri Feb 10, 2017 2:58 pm
Forum: General
Topic: how do u calibrate sdruno...
Replies: 18
Views: 7965

Re: how do u calibrate sdruno...

Just follow the instruction in the calibration panel. But first, make sure the signal you intend to use is strong and steady. Then place the tuning cursor away from the central 'spike'. Then follow those instructions. In step 2, better wording would be 'type in the exact frequency of the signal you ...
by g1hbe
Fri Feb 10, 2017 1:22 pm
Forum: SDRuno
Topic: SDRuno suggestions...
Replies: 17
Views: 8083

Re: SDRuno suggestions...

I'd go for that, Martin.
by g1hbe
Fri Feb 10, 2017 11:21 am
Forum: SDRuno
Topic: SDRuno suggestions...
Replies: 17
Views: 8083

Re: SDRuno suggestions...

My suggestion is a faster 'slow' setting for the waterfall. HDSDR has a variable speed, but Uno has only a x100 setting which is very slow.
by g1hbe
Fri Feb 10, 2017 9:10 am
Forum: SDRuno
Topic: SDRuno suggestions...
Replies: 17
Views: 8083

Re: SDRuno suggestions...

This is odd. I have the 'MA' button permanently engaged and I shut down the program by clicking the standard windows X button in the top corner of the small MAIN panel. Works every single time.

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