Messages

436

HF Beacons / Re: New whooper beacon on 4095.65

« on: February 26, 2022, 1326 UTC »

Outside air temp dropping rapidly

0456am pst

BAT    12.7
oTMP  41 
iTMP   48
PV      0

0522 am pst

BAT    12.8
oTMP  36 
iTMP   48
PV      0

437

HF Beacons / Re: The 'Coast Slider' 4109.5

« on: February 26, 2022, 1319 UTC »

I can hear CS on the Utah kiwi #1 but not on KFS at all. I do hear DW everywhere on all kiwis I pick. Interesting propagation

438

HF Beacons / Re: "L" at 4095.11

« on: February 26, 2022, 1303 UTC »

Decent signal on the KFS omni kiwi at 4095.05 KHz right now

439

The RF Workbench / Re: Variable frequency oscillator design for HF

« on: February 24, 2022, 1756 UTC »

I don't know how you are testing them but crystals can be designed to operate properly in either a series or parallel resonance mode

440

The RF Workbench / Re: Hellschreiber beacon - with some oomph!

« on: February 24, 2022, 0720 UTC »

I gave the thread a quick read through but will comment on one thing for now. If a good IRF510 is needed, don't buy it on ebay. I paid 82 cents each for the parts from Mouser and all were good so who cares if they cost more than the really cheap/crappy ones from other sources?

441

The RF Workbench / Re: Variable frequency oscillator design for HF

« on: February 24, 2022, 0658 UTC »

The AD9833 is one easy way to break free from fixed crystals. I have one on the bench and use an Arduino "Nano" board to control it. There's lots of software already available. It's easier to use the square wave output and filter it as the board's  sine wave out is fairly poor quality.

If you want something you can just use without software and a microcontroller there are modules with everything on the board to allow it to act as a VFO. Depends on your skills and budget as well as what you define as simple

442

HF Beacons / Re: New whooper beacon on 4095.65

« on: February 24, 2022, 0639 UTC »

I have a pretty good signal from DW right now at home. It seems February is a great month for good copy.

BAT    13.0
oTMP  37 
iTMP   47
PV      0

It's interesting to see the air temp keep dropping but there is a longer lag for the iTMP numbers to close the gap

443

HF Beacons / Re: New whooper beacon on 4095.65

« on: February 23, 2022, 1439 UTC »

4095.700 KHz  DW is readable at home on the NRD-525 at 0601PST
BAT 12.8  oTMP 35  iTMP 45  PV 1

Cold out there

444

HF Beacons / Re: 2097.3 kHz. "A" Beacon Returns...Again...

« on: February 23, 2022, 0519 UTC »

Despite a lousy local noise floor I am hearing the A beacon here at home right now

445

HF Beacons / Re: YV5B 18110 CW 1817 UTC 16 FEB 2022

« on: February 22, 2022, 1555 UTC »

That's quite a nice catch in Maryland!

446

HF Beacons / Re: 2097.3 kHz. "A" Beacon Returns...Again...

« on: February 22, 2022, 1552 UTC »

Am hearing it on the Utah omni SDR but not at home

447

HF Beacons / Re: New whooper beacon on 4095.6

« on: February 22, 2022, 1549 UTC »

I can hear DW on both of my receivers at home, Sedona Kiwi. Northern Utah Kiwi, all four KFS Kiwis.

BAT     13.7
O TMP  59
I TMP   50
PV       1958 (mA?)  This value steadily rose from a couple digits at 7:15 AM and BAT reading rose at the same time

I've been wanting to compare readings with my original posts from a year ago

BAT     13.8 
O TMP  45
I TMP   53
PV       1813

Likewise am easily hearing DW at home and on the same kiwis so signal strength appears to have held steady

448

HF Beacons / Re: The 'Coast Slider' 4109.5

« on: February 22, 2022, 1538 UTC »

last Friday I was out in the southern back country of Death Valley. I put up a long wire and attached the KX3 and heard CS quite well.

449

HF Beacons / Re: The 'Coast Slider' 4109.5

« on: February 16, 2022, 0514 UTC »

Very weak but still recognizable signal here at home on the KX3

450

HF Beacons / Re: New whooper beacon on 4095.65

« on: February 16, 2022, 0422 UTC »

4095.700 KHz  DW is readable at home on the KX3. BAT 12.9  oTMP 43  iTMP 45  PV 0