Hi All,
This is a continuing saga of my getting a Softrock LF operating properly (again).? It has been a number of years since I last used one, and the one Tony sent me seems to work quite well (with a few quirks).? But one thing I could NOT do was get a 192KCs bandwidth in the NDB band where I listen.? About 96k was the best I could get.
I had bought a new Creative Soundcard to install in my Tower computer as the soundcard it had seemed a bit "hissy".? This is the soundcard I bought, as it said it was 192k.
After I finally got into the Win 11 setup for the card , try as I might, I couldn't do any better than 96k, and that is all that HDSDR would let me do.
Finally, in desperation, I plugged the Softrock into the soundcard that came with the 'puter, a Realtek that is apparently part of the motherboard. ? Well, imagine my surprise when I went into HDSDR and it let me set the card up for 192K, and I can see that bandwidth in the display.? Seems to work quite well, except that I do get a "clip" indicator.? I've NOT figured out a way to lower the gain of the card that works, (Win11 is TERRIBLE about letting you change things).? But at least it IS working, but I noticed that I seem to have three very strong bands of IMD or "noise" (not listened to it yet) in the waterfall.? Something that isn't "real" as I don't hear them on the Yaesu receivers using the same antenna/ multicoupler, etc.
But otherwise the receiver seems to work well, in three nights recording (while it was still only 96k) I logged quite a few NDB's, including several Alaskan ones that I always welcome here. . .
--
<>< 73 From "The Beaconeer's Lair" ><>
Specializing in DXing NDBs (Longwave Beacons)
Phil, KO6BB,
(\__/)
(=’.'=)
(”)冲(”)
EQUIPMENT:
YAESU: FTDX-101MP Xceiver, Dual SDR Receivers (~2020)
YAESU: FTDX-3000 Xceiver, DSP IF, 300Hz Roofing filter (~2019).
Portables: Eton Elite 750 (2), AKA Grundig Satelite 750 (2020)
Sangean ATS-909X2 (2021), Tecsun PL-990 (2021)
SDRs: Airspy Discovery HF+, SDRplay RSPdx, Softrock LF
Scanner: Uniden SDS200
ACC: MFJ-993B Auto Antenna Matcher.
HOMEBREW 4 Port Antenna Multicoupler, Feeds 4 RX's.
HOMEBREW Tunable LF-MF Pre-Amp.
Ratzlaff 440Hz, 6.5Hz BW Audio Filter
Autec Research QF1 Audio Filter.
ANTENNAS: 88 foot Long Ladder-line fed dipole, ~35 feet AGL for MW/HF.
Top Loaded Tee (Dipole fed as single element).
Butternut HF-6V 6 Band Vertical, ~12 Feet AGL for 75-10M
Ratzlaff Active whip, 5 Foot Long, ~22 Feet AGL For LF/MW/HF.
Wellbrook ALA1530LN Loop For LF/MW/HF at ~17 Feet AGL
Discone at ~35 Feet AGL For Scanner
QTH: Merced, California, 37, 18, 37N 120, 30, 6W CM97rh
