Search found 318 matches

by K9RX
Sun Feb 21, 2021 2:49 pm
Forum: Transverters
Topic: Thetis DRIVE CONTROL IN TRANSVERTER MODE
Replies: 9
Views: 609

Re: Thetis DRIVE CONTROL IN TRANSVERTER MODE

Tony, So are you using the XVTR TX out jack and if so have you measured the Pout and its 'step size'? I ask because I'm considering doing 23cm EME and would have a transverter of course to do that. I need to know what to expect from that Orion MKII XVTR TX output jack. [rig is 8000 but of course sam...
by K9RX
Mon Feb 15, 2021 2:17 pm
Forum: Diversity Operations (PowerSDR & Thetis)
Topic: 7000DLE MKII I7 diversity issues
Replies: 9
Views: 768

Re: 7000DLE MKII I7 diversity issues

Just as a note - this doesn't sound like software .... this sounds like maybe a bad shield connection on one of your antennas. The antenna then becomes single-ended and noise can be introduced. Check connections on both antennas. [one can check this out by unscrewing the 'ring' of a PL259 and pullin...
by K9RX
Tue Feb 09, 2021 5:39 pm
Forum: Transverters
Topic: 23cm transverter to 8000DLE
Replies: 0
Views: 254

23cm transverter to 8000DLE

So ... not seeing a whole lot of discussion here on how to connect a transverter let alone if it can be done properly. I have an 8000DLE and I was looking at adding 23cm EME using a Q5 transverter. I see the TX out jack for a transverter but looking through the 8K manual I don't see any info on what...
by K9RX
Fri Jan 29, 2021 3:58 pm
Forum: Thetis
Topic: RX Level Calibration
Replies: 19
Views: 689

Re: RX Level Calibration

PS: re calibration. The out of the box performance is extremely good and unless you're using the radio to do absolute measurements calibration isn't strictly necessary. I checked it as I had a source (Elecraft XG3) and if I recall it was off by 1 db at S9. Note that is the only thing that you calibr...
by K9RX
Fri Jan 29, 2021 3:54 pm
Forum: Thetis
Topic: RX Level Calibration
Replies: 19
Views: 689

Re: RX Level Calibration

Well keep it in mind John, Unfortunately since resetting the DB would also set the ATT to 0 we don't know! .... the fact that only one band was showing it says you might have turned it on and forgot about it ...

just a thought.

g.
by K9RX
Thu Jan 28, 2021 1:32 pm
Forum: Thetis
Topic: RX Level Calibration
Replies: 19
Views: 689

Re: RX Level Calibration

I will take a guess as to what you are seeing: you have some level of ATT selected on 40M! Just set it to 0 and you'll be back where you 'need' to be. Nothing else needed.

Gary
K9RX

this assumes your natural noise level is at that level ... in which case it is a moot point.
by K9RX
Tue Jan 05, 2021 1:58 pm
Forum: MIDI Controllers (PowerSDR & Thetis)
Topic: Behringer CMD Studio2A for VFO A or B freq control
Replies: 4
Views: 810

Re: Behringer CMD Studio2A for VFO A or B freq control

Great - I had forgotten about the post so my bad anyway. Drop me an email at my arrl email address if you have any other questions regarding its setup or use.

Gary
by K9RX
Mon Jan 04, 2021 2:23 pm
Forum: MIDI Controllers (PowerSDR & Thetis)
Topic: Behringer CMD Studio2A for VFO A or B freq control
Replies: 4
Views: 810

Re: Behringer CMD Studio2A for VFO A or B freq control

Hi Ron,

I'm using the CMD 2A and love it! I do indeed have VFO A and B assigned to the 2 wheels. I'll check the 'settings' in the midi panel.

Gary
K9RX
by K9RX
Thu Dec 10, 2020 1:37 pm
Forum: Network Connections & Network Hardware
Topic: ANAN-7000DLE MkII Ethernet failure - again
Replies: 19
Views: 1275

Re: ANAN-7000DLE MkII Ethernet failure - again

I have to say as a design engineer this sounds like a "myth" ... timing issues based on what would essentially be a small difference in temperature. Sounds more like there is something that is not right in the interface and its protocol or the chip is not designed to do what is being asked...
by K9RX
Thu Oct 01, 2020 12:11 pm
Forum: Digital Mode, Rig Control & Logging Software
Topic: DDUtil/Method to control Amplifier
Replies: 16
Views: 1723

Re: DDUtil/Method to control Amplifier

It is unfortunate but the DCE vs. DTE format is not always followed on devices. [these tests are done with the amp not connected to anything on the RS232 lines] So ... It's easy to determine which is which - TX vs RX.... use a meter - assuming you know which pin is ground (test to chassis if you don...
by K9RX
Sat Sep 26, 2020 12:00 pm
Forum: PowerSDR mRX
Topic: Windows10 2004 Update busted my radio
Replies: 14
Views: 1826

Re: Windows10 2004 Update busted my radio

I've had no issues with windows updates until very recently when it caused the audio, using VAC for FT8 digital mode, to be distorted. Scott had suggested I uninstall and reinstall my VAC program (the one by Eugene M) ... I did go back to the previous version of Windows and it worked again but I don...
by K9RX
Fri Aug 28, 2020 11:30 am
Forum: Digital ("Virtual") Audio
Topic: Windows Update
Replies: 16
Views: 3328

Re: Windows Update

Rubern, Agreed. They DO update quite often. It's more a pain to get it 'in' than anything else. Until this one mentioned at the start of this thread I've never had a problem and reinstalling the VAC program solved this problem so not bad overall. I don't think delaying it helps - ultimately if you a...
by K9RX
Fri Aug 14, 2020 12:14 pm
Forum: Digital ("Virtual") Audio
Topic: Windows Update
Replies: 16
Views: 3328

Re: Windows Update

SOLVED I went (back) to the previous version of WIndows ... and all was working again. Been that way since 26 July when I first started this post. But as mentioned I don't want to orphan my computer. So I took Scotts suggestion. As usual he was right. I downloaded the latest version VAC (Eugene's), ...
by K9RX
Thu Jul 30, 2020 11:33 am
Forum: Everything Else: Antennas, Relays, Switches, Power, Grounding, Cooling, etc.
Topic: Low sensitivity and low noise floor
Replies: 18
Views: 3208

Re: Low sensitivity and low noise floor

I never had an issue running the 8000 at 60 - 70W on FT8. Didn't get very warm at all. But again: you've not addressed my comment - this looks to have no relationship with temperature - or am I missing something? It looks like you have a nearby noise source in one shot (the -67) and that noise sourc...
by K9RX
Tue Jul 28, 2020 11:36 am
Forum: Everything Else: Antennas, Relays, Switches, Power, Grounding, Cooling, etc.
Topic: Low sensitivity and low noise floor
Replies: 18
Views: 3208

Re: Low sensitivity and low noise floor

I'm confused why you went to suggesting a fuse on this? It looks to me like you have TERRIBLE noise at your location and it simply went away! -101 is a little bit high for me here with a 2.4Khz passband ... and -67 is terrible noise - but it appears like I'm seeing the same signal and not seeing the...
by K9RX
Mon Jul 27, 2020 1:32 pm
Forum: Digital ("Virtual") Audio
Topic: Windows Update
Replies: 16
Views: 3328

Re: Windows Update

I rolled back yesterday. I've never done that before - never HAD to do that before. It fixed the issue. So what does one do going forward? I of course don't want to be stuck in time with an ever aging version of windows sans whatever security is needed ... will Microsoft "realize" this and...
by K9RX
Sun Jul 26, 2020 1:09 pm
Forum: Digital ("Virtual") Audio
Topic: Windows Update
Replies: 16
Views: 3328

Re: Windows Update

when I said I switched back to an older db - I meant one from a few days ago, that was working fine before this latest Windows update ... Gary
by K9RX
Sun Jul 26, 2020 1:08 pm
Forum: Digital ("Virtual") Audio
Topic: Windows Update
Replies: 16
Views: 3328

Windows Update

I've not had audio issues in a very long time ... but yesterday Windows took me through one of those wonderful update sessions... the latest, installed on 25 July, 2020. Since then my FT8 audio isn't working. Its mush. Distorted audio ... and the transmit is no better. I reset to an earlier db, a fe...
by K9RX
Mon Jul 20, 2020 3:15 pm
Forum: PowerSDR mRX
Topic: Transmit signal levels on panadapter
Replies: 22
Views: 9686

Re: Transmit signal levels on panadapter

On topic per the subject line but a different take: Setup: This is independent of PS. DUP is on. 8000DLE, Xytronics coupler with an additional 10 db (54db atten inline). Amp: Elecraft KPA1500. So - when I transmit using CW, DIG (FT8) and even 2 tone the TX display always shows or 'peaks at or just a...
by K9RX
Fri Jun 19, 2020 12:06 pm
Forum: Digital ("Virtual") Audio
Topic: Optimizing WSJT-X
Replies: 7
Views: 2065

Re: Optimizing WSJT-X

A couple of comments from my experience. I had drop out sequences where nothing would decode - frustrating especially the few times when it was someone I needed and I was working. Turned out to be my fault. I had Dimension4 time program set to update once every 10 minutes or something like that - no...
by K9RX
Tue Jun 09, 2020 12:09 pm
Forum: PowerSDR mRX
Topic: Resampler Adjustment
Replies: 45
Views: 27968

Re: Resampler Adjustment

Seems a reasonable conclusion you've come to ... I've not bothered with the resampler for a long long time. Just don't mess with it. Seems almost a solution looking for a problem. Since perturbations in CPU action elsewhere cause clicks and jumps in the TX signal - and since these also induce the re...
by K9RX
Mon May 25, 2020 12:58 pm
Forum: PowerSDR mRX
Topic: WSJT-X FT8 signal images
Replies: 21
Views: 3861

Re: WSJT-X FT8 signal images

N8UR: coincidence! I use MME and see them. My strong suspicion is they are real! I had one local station the other day that was literally 210 Khz wide here! He was a +16 ... and had a scalloped signal down more than 100Khz and up the same! I took a snapshot of it to send to him but it turns out he i...
by K9RX
Sun May 24, 2020 12:42 pm
Forum: PowerSDR mRX
Topic: WSJT-X FT8 signal images
Replies: 21
Views: 3861

Re: WSJT-X FT8 signal images

Tony, The NB settings are default (although I've changed the ... threshold I think its called (not at radio) to 15 from 32, makes no difference to this subject though) ... I've not had any issues. There's no reason that i'm aware of that you shouldn't use a NB on DIG modes! NR yes, but not a NB. I u...
by K9RX
Sat May 23, 2020 1:29 pm
Forum: PowerSDR mRX
Topic: Resampler Adjustment
Replies: 45
Views: 27968

Re: Resampler Adjustment

thanks guys - I stand fully corrected. Keep up the great work.

Gary
K9RX
by K9RX
Sat May 23, 2020 1:27 pm
Forum: PowerSDR mRX
Topic: WSJT-X FT8 signal images
Replies: 21
Views: 3861

Re: WSJT-X FT8 signal images

I see this quite frequently. It has nothing to do with PSDR. It is the quality of transmitters as they go higher in frequency seeming to reach a crescendo at 6M! Note further I use the NB (both NB and NB2) on 6M all the time - no impact at all ... HOWEVER if there are strong nearby signals - like CW...
by K9RX
Wed May 20, 2020 12:13 pm
Forum: PowerSDR mRX
Topic: Noise blanker/reduction settings?
Replies: 14
Views: 3161

Re: Noise blanker/reduction settings?

not in direct response to your posting but definitely in response to your heading for this thread: I played with the NB settings... and found that a THRESHOLD value of 15 is about a 1-2 db improvement for me over the default setting of 32. Consistent - audible - seen on the waterfall and on the S-me...
by K9RX
Tue May 19, 2020 12:38 pm
Forum: PowerSDR mRX
Topic: Resampler Adjustment
Replies: 45
Views: 27968

Re: Resampler Adjustment

John, W1JA, after reading your comments re freq cal and improvements on FT8 I was quite confused - I couldn't see how there would be any connection or correction for that matter by doing this since FT8 is relative and not absolute (its not tied to an absolute frequency)... but I did it anyway - and ...
by K9RX
Mon Mar 30, 2020 11:52 am
Forum: Digital Mode, Rig Control & Logging Software
Topic: Guidelines For Best Transmitted Signal Quality With Digi Modes
Replies: 19
Views: 15552

Re: Guidelines For Best Transmitted Signal Quality With Digi Modes

I recently read the section of the WSJT manual regarding the measurement tools. There is a "linearization tool' there... and it is stated one can use this to get this correct OR if one has the ability to do Linear Phase on TX (vs Low Latency) that you are set to go and need not worry about this...
by K9RX
Sun Mar 29, 2020 12:36 pm
Forum: Orion Mk II Firmware (7000DLE, 7000DLE MKII, 8000DLE)
Topic: New 7000DLE MKII owner - Want to run Thetis
Replies: 12
Views: 5673

Re: New 7000DLE MKII owner - Want to run Thetis

thanks for the step by step - but when/how did you install Thetis itself?!

Gary
by K9RX
Sat Feb 15, 2020 1:45 pm
Forum: Digital ("Virtual") Audio
Topic: Things to check post Windows Update...
Replies: 2
Views: 2738

Re: Things to check post Windows Update...

Thanks Scott... well this is what happened post my note - it might be germane to someone seeing/using this thread. -this morning, with everything powered up 24/7 as usual, I tried to work someone on 60 FT8 - no transmit signal. It went to TX but nothing showed on the TX pan. Tried this and that - re...

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