Search found 252 matches

by K9RX
Sat Jun 15, 2019 5:34 pm
Forum: Digital Mode, Rig Control & Logging Software
Topic: Best AGC for digital modes?
Replies: 20
Views: 208

Re: Best AGC for digital modes?

A few additional notes : No, my RX AF is not anywhere near 100! It is typically in the 30's! -second - indeed I do acknowledge that 40 - 50 db above is far far too high (too low a gain) ... and you WILL lose signals because of it ... -three: when I said "30 or 40" I was referring to the au...
by K9RX
Sat Jun 15, 2019 1:59 pm
Forum: Digital Mode, Rig Control & Logging Software
Topic: Best AGC for digital modes?
Replies: 20
Views: 208

Re: Best AGC for digital modes?

Wow Scott.... seems based on your assessment I'm way off ... I run, HAVE TO RUN my VAC RX gain at -25. And doesn't the RX AF depend on the Master setting as well? I ask only because I have no problem getting decodes in the -20 through -23 range and occasionally a -24 (although FT8 is speced at I bel...
by K9RX
Thu Jun 13, 2019 1:12 pm
Forum: Digital Mode, Rig Control & Logging Software
Topic: Best AGC for digital modes?
Replies: 20
Views: 208

Re: Best AGC for digital modes?

AGC gain: the only caveat is the gain line shouldn't be set too high (on the screen, low value). If grossly high you will get vertical lines printing on the WSJT waterfall ... with a bit less than that you can miss weaker stations... I set the line just above the noise level (15 - 20 db above it) AG...
by K9RX
Wed Jun 05, 2019 12:33 pm
Forum: Digital Mode, Rig Control & Logging Software
Topic: ANAN-200D and WSJT-X/FT8 TX tone on waterfall display mushrooms
Replies: 34
Views: 2609

Re: ANAN-200D and WSJT-X/FT8 TX tone on waterfall display mushrooms

There is one thing - Scott may consider this to be off topic for this sub-forum (and move it?) ... but I throw it out there. I don't think this has anything to do with what you are seeing (nor Affinity, your issue sounds more fundamental and related to the VAC channels/setup) ... I know there is a ....
by K9RX
Thu May 30, 2019 11:59 am
Forum: Digital Mode, Rig Control & Logging Software
Topic: ANAN-200D and WSJT-X/FT8 TX tone on waterfall display mushrooms
Replies: 34
Views: 2609

Re: ANAN-200D and WSJT-X/FT8 TX tone on waterfall display mushrooms

Dick (and others interested in this thread), I had suggested way back when in this thread that setting the affinity to 1 core helped - and it does. There is absolutely no uncertainty in this. However I've since found that one core can cause the rig to just quit. So I've gone to 3 (out of 12) cores. ...
by K9RX
Fri Apr 26, 2019 2:35 pm
Forum: PowerSDR mRX
Topic: Transmit signal levels on panadapter
Replies: 20
Views: 2533

Re: Transmit signal levels on panadapter

Just a quick note - personal settings and suggestions for TX Panadapter settings: Max: 10, Min -70, STEP 5 I believe at least at full power using a coupler the signal on TX is referenced to 0 dbm - this takes that in to account: Using a value of 10 for the top means that the top of the signal is at ...
by K9RX
Fri Apr 26, 2019 2:27 pm
Forum: PowerSDR mRX
Topic: Panadapter & waterfall settings
Replies: 6
Views: 6504

Re: Panadapter & waterfall settings

just a quick note re personal settings: -I find that a FPS of 30 shows no real difference visually compared to 60... and would rather not use up CPU time for what seems to be no real advantage... -I don't use the waterfall to 'decode' anything so I find a slower setting is more useful - I use it to ...
by K9RX
Sun Apr 21, 2019 1:46 pm
Forum: MIDI Controllers
Topic: My latest MIDI controller opus
Replies: 9
Views: 637

Re: My latest MIDI controller opus

Scott ... indeed nice job on the labeling - how'd you do it? I have a Dymo machine here that does the sticky paper labels ... worked for a while on my CMD2A but now some are peeling off... would love to know which tool and tape you used (it appears to be a clear background)

Gary
K9RX
by K9RX
Tue Apr 16, 2019 12:53 pm
Forum: Diversity Operations
Topic: Diversity Operations
Replies: 46
Views: 13871

Re: Diversity Operations

Yes - very cool. I played with it on FT8 ... that 'interferer' that i have I think you'd agree is a nasty one. I'd love to find out what is causing it - Plasma TV, grow lights ... haven't a clue ... It is worst on 15 and in that direction covers the whole band with the repetitive nature seen there (...
by K9RX
Mon Apr 15, 2019 12:25 pm
Forum: Diversity Operations
Topic: Diversity Operations
Replies: 46
Views: 13871

Re: Diversity Operations

One other comment: just to be clear - this feature is only "local" in nature - in 2 ways: 1) it acts on local noise, not sky wave and 2) frequency-wise it is somewhat narrow in response so one has to optimize at a particular frequency (the one of interest)... I don't know that it is overly...
by K9RX
Mon Apr 15, 2019 12:21 pm
Forum: Diversity Operations
Topic: Diversity Operations
Replies: 46
Views: 13871

Re: Diversity Operations

I've not had a chance to look in to how to do it ... besides the fact that there is no audio... so I'll work on getting something better. One reason why I did this is because the only video (on UT) that shows coherent beamforming doesn't show it WITH a signal! So I for one was left asking : but how ...
by K9RX
Sat Apr 13, 2019 1:15 pm
Forum: Diversity Operations
Topic: Diversity Operations
Replies: 46
Views: 13871

Re: Diversity Operations

sorry - misspoke there - the noise floor does not go down by 24db ... that nasty noise signal PEAK goes from -90 down to the (new) noise floor at 0-114db. Since these interference signals repeat and are broad the overall noise floor does go down a decent amount ... looking at the video it changes ab...
by K9RX
Sat Apr 13, 2019 1:02 pm
Forum: Diversity Operations
Topic: Diversity Operations
Replies: 46
Views: 13871

Re: Diversity Operations

It's been awhile since I last visited this particular subforum ... I have 2 antennas on HF - for example on 15 I have 6/6 long boom monobanders and also a 4 element custom SteppIR.... so I once again revisited diversity. I have these nasty signals on 15 towards the west making difficult copy at time...
by K9RX
Sat Apr 13, 2019 12:38 pm
Forum: PowerSDR mRX
Topic: Audio glitches: why do they occur?
Replies: 13
Views: 3266

Re: Audio glitches: why do they occur?

yes indeed I've seen the MANY threads for Chrome ... cool on the automation. That sounds promising. It would be nice if Windows provided a way to contain a program to X number of threads - it only ... wouldn't think this would be onerous for them but obviously don't know the knock-on effects. Gary a...
by K9RX
Fri Apr 12, 2019 12:31 pm
Forum: PowerSDR mRX
Topic: Audio glitches: why do they occur?
Replies: 13
Views: 3266

Re: Audio glitches: why do they occur?

Scott, thanks for the detail on the switch. It's not a router - it is just a switch (there is a router on/from the incoming Spectrum cable line though). At least I think this is correct... but I believe a moot point. As for Chrome. I found that Chrome produced much less 'activity' re glitches on the...
by K9RX
Thu Apr 11, 2019 1:01 pm
Forum: PowerSDR mRX
Topic: Audio glitches: why do they occur?
Replies: 13
Views: 3266

Re: Audio glitches: why do they occur?

Rob, Just to fill in - I'm using Eugene's VAC for FT8 and RTTY only. Voice is direct to the radio. I had tried running Teamviewer to watch for new ones on FT8 while working but that caused glitches when it was running and I was actually working people. So I removed the program. This is a reasonably ...
by K9RX
Wed Apr 10, 2019 12:33 pm
Forum: PowerSDR mRX
Topic: Audio glitches: why do they occur?
Replies: 13
Views: 3266

Re: Audio glitches: why do they occur?

Just as an FYI and pertinent to the mention of the resampler to 'correct' things. I have tried ad nauseum to get the resampler going ... also my TX waveform was often very poor due to dropouts (clicks etc). I found setting the affinity to only 2 cores improves this noticeably but it did not help wit...
by K9RX
Wed Mar 20, 2019 12:41 pm
Forum: PowerSDR mRX
Topic: Preselectors, the ALEX button, and RX2
Replies: 4
Views: 4739

Re: Preselectors, the ALEX button, and RX2

Scott,

Forgive me if this is not posted in the right place ... I think it is correct.

So why is it when I tune outside a ham band the panadapter changes drastically? How do I continue to tune outside the ham band as if nothing changed? I SHOULD be able to do that ...

Gary
K9RX
by K9RX
Sun Mar 17, 2019 1:24 pm
Forum: Amplifiers & Tuners
Topic: Linear Amplifier ALC interfacing
Replies: 3
Views: 1155

Re: Linear Amplifier ALC interfacing

Same response as before Scott..... operator never doing something stupid like driving an external amplifier with 100W. If you have an amplifier with no protection against gross over-drive it would be possible, without ALC, to make a stupid and potentially costly error. As I've explained ad nauseum t...
by K9RX
Wed Mar 13, 2019 12:40 pm
Forum: PowerSDR mRX
Topic: Calibration Tab 7000DLE
Replies: 4
Views: 419

Re: Calibration Tab 7000DLE

I used an XG3 signal source. Easily done when using it. I found as Scott pointed out very little difference - for the majority of users I'd suggest leaving it alone as its close enough - surely much better than other radios! (my Ftdx5000 I use to own literally changed 2 S units with 2 db change in s...
by K9RX
Sat Mar 09, 2019 1:53 pm
Forum: Diversity Operations
Topic: My Diveristy Adventures
Replies: 3
Views: 453

Re: My Diveristy Adventures

Scott will I'm sure reply about using the system in general. I have never been able to get diversity to work myself but that is more because the antenna selection is critical. I've not had a reference antenna that picked up the noise as loud or louder and still picked up some of the signal. So I end...
by K9RX
Wed Mar 06, 2019 1:26 pm
Forum: Everything Else: Antennas, Relays, Switches, Power, Grounding, Cooling, etc.
Topic: ANAN-100 low 10/12m output with LPF enabled.
Replies: 16
Views: 1659

Re: ANAN-100 low 10/12m output with LPF enabled.

Ed, Just an FYI - I had reported a good bit ago, maybe 6 months, that I had issues with PS working on 6 meters. Turns out I had to have ALEX off. There was a bug, at least for the 8000, that Doug confirmed in testing. I don't know if anything ever came of it but I've run with ALEX turned off from th...
by K9RX
Sat Feb 16, 2019 1:38 pm
Forum: PowerSDR mRX
Topic: ANAN-8000 & PowerSDR - some notes, some questions
Replies: 5
Views: 638

Re: ANAN-8000 & PowerSDR - some notes, some questions

just to be clear the one thing the "Auto" doesn't handle for the waterfall is the width of the display. That would be nice if it automatically took that in to account. As it is now when I go to CW on a noisier band like 40 it is mostly white (bright) ...

Gary
K9RX
by K9RX
Sat Feb 16, 2019 1:30 pm
Forum: PureSignal Operations
Topic: Pure Signal & external amplifier
Replies: 7
Views: 1302

Re: Pure Signal & external amplifier

just to be sure since this discussion got off to the coupler and not the IMD results ... the -55 to -60 I posted is my IMD results in db.

Gary
by K9RX
Fri Feb 15, 2019 2:16 pm
Forum: PowerSDR mRX
Topic: ANAN-8000 & PowerSDR - some notes, some questions
Replies: 5
Views: 638

Re: ANAN-8000 & PowerSDR - some notes, some questions

NB button on TX ... that was one of my findings and subsequent request, to turn off NB(1 or 2) on TX. The issue is, or was, with it on the TX pan jumps all over the place - using DUP(lex) of course. It DOES serve a purpose turning it off and is benign other than making the pan work properly! Waterfa...
by K9RX
Fri Feb 15, 2019 2:06 pm
Forum: PureSignal Operations
Topic: Pure Signal & external amplifier
Replies: 7
Views: 1302

Re: Pure Signal & external amplifier

I have an 8000DLE, Expert 2K amp with a Xytronics coupler and routinely see -55 to -60.
Your findings seem low to me ...

Gary
K9RX
by K9RX
Sun Jan 27, 2019 3:21 pm
Forum: Orion Mk II (7000DLE, 7000DLE MKII, 8000DLE)
Topic: Unkey Blowouts
Replies: 12
Views: 1406

Re: Unkey Blowouts

Carl - sorry for the off-shoot - which skin are you using? I like that one. Might be nice for a change. I'm using Rob's High Visual which is quite nice.

Gary
K9RX
by K9RX
Sat Jan 26, 2019 2:38 pm
Forum: Orion Mk II (7000DLE, 7000DLE MKII, 8000DLE)
Topic: Unkey Blowouts
Replies: 12
Views: 1406

Re: Unkey Blowouts

Re timing - I had an issue where my RX preamp feeding in to ANT3, the transistor blew - and I was getting frequent "HIGH SWR" warnings. I worked with Doug - well Doug did the testing/work and I just tried his results... anyway he found, using a scope on an 8000, that I believe it was Key D...
by K9RX
Wed Dec 12, 2018 2:29 pm
Forum: Thetis
Topic: Quirks with Thetis
Replies: 25
Views: 2460

Re: Quirks with Thetis

Just as a note you're reporting something different than what I'm reporting. For me the "Correcting" green bar remains on. I run with DUP on at all times and it is immediately evident that it is not running as the IMD is just ok at best (-30 or so) and the feedback bar is gone - not there ...
by K9RX
Tue Dec 11, 2018 1:59 pm
Forum: Thetis
Topic: Quirks with Thetis
Replies: 25
Views: 2460

Re: Quirks with Thetis

Jeff, I've reported an issue with PS stopping ... although in my case it does literally stop working. The button stays on (and I can toggle it off and on) ... the green "correcting" bar is there always but there is nothing in the feedback bar and it is not correcting as witnessed on the ra...

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