Search found 1172 matches

by w-u-2-o
Sat Jul 14, 2018 1:40 pm
Forum: Digital Mode & Logging Software
Topic: RX1 AF level with WSJTX
Replies: 27
Views: 761

Re: RX1 AF level with WSJTX

I could not duplicate the "choppy" sound on the AGC experiment. On a quiet band, or with the dummy load connected, it sounds identical to me in Medium or Fixed AGC modes on either 80 or 10M. I did not try 6M (I don't work 6M). I might try this experiment again and feed the audio into a spe...
by w-u-2-o
Fri Jul 13, 2018 8:29 pm
Forum: PowerSDR mRX
Topic: S meter reading
Replies: 14
Views: 547

Re: S meter reading

S2 is not "way too much". However, my apologies for not clarifying that this is with the meter set to "Signal" (peak reading). Most people run their S-meter on "Signal", not "Sig Avg", and that is what you will get under the conditions you measured. From my se...
by w-u-2-o
Fri Jul 13, 2018 8:18 pm
Forum: PowerSDR mRX
Topic: Multiple Radios, Multiple Configurations
Replies: 6
Views: 567

Re: Multiple Radios, Multiple Configurations

Jean-Marc, Thetis also supports the -datapath command line variable. As far as I know, it does not negotiate a different range of ports for each instance/radio (even though this is supported in Protocol 2), so one cannot run more than one instance of Thetis simultaneously on the same PC, however I h...
by w-u-2-o
Fri Jul 13, 2018 1:12 pm
Forum: PowerSDR mRX
Topic: S meter reading
Replies: 14
Views: 547

Re: S meter reading

Into a dummy load, with no attenuation, and a 2.7KHz RX passband, the S-meter should be right around S2, S3 at most.
by w-u-2-o
Thu Jul 12, 2018 4:58 pm
Forum: PowerSDR mRX
Topic: S meter reading
Replies: 14
Views: 547

Re: S meter reading

OK, starting to grasp at straws...

Perhaps you have a bad power supply? What happens if you run the hardware off of a battery (if you can)?
by w-u-2-o
Thu Jul 12, 2018 12:30 pm
Forum: PowerSDR mRX
Topic: S meter reading
Replies: 14
Views: 547

Re: S meter reading

Attenuation is accounted for by the software. All readings, displays and indications are normalized to the levels at the rear panel connectors. So changing attenuation has no effect on measurement results (this is also true on Flex radios). Put in enough attenuation and you will see the noise floor ...
by w-u-2-o
Thu Jul 12, 2018 10:59 am
Forum: PowerSDR mRX
Topic: S meter reading
Replies: 14
Views: 547

Re: S meter reading

No, that definitely sounds wrong.

Have you tried resetting your database?
by w-u-2-o
Wed Jul 11, 2018 1:14 pm
Forum: Digital Mode & Logging Software
Topic: RX1 AF level with WSJTX
Replies: 27
Views: 761

Re: RX1 AF level with WSJTX

sorry to continue the divergence: until someone else posts additional info/questions on this subject let me finish with this ... Scott, apparently you've not seen the "video" ... I'll need to look for it again - but there is a video of someone in EU that HAS fully automated FT8. It is run...
by w-u-2-o
Tue Jul 10, 2018 3:09 pm
Forum: Digital Mode & Logging Software
Topic: RX1 AF level with WSJTX
Replies: 27
Views: 761

Re: RX1 AF level with WSJTX

JT modes killed off nearly all digi mode traffic in about 6 months. FT8 killed JT modes in under a week. We should either give Joe Taylor a medal or banish him, not sure which ;) It's funny: I asked Joe to automate JT65. He was horrified by the idea. I guess he changed his mind. We are only a few li...
by w-u-2-o
Tue Jul 10, 2018 2:32 pm
Forum: Digital Mode & Logging Software
Topic: RX1 AF level with WSJTX
Replies: 27
Views: 761

Re: RX1 AF level with WSJTX

I'm not a big DX chaser on FT8. But I do chase weak signals on Olivia in Fldigi. FWIW I find medium AGC to work well for this.
by w-u-2-o
Tue Jul 10, 2018 10:39 am
Forum: Digital Mode & Logging Software
Topic: RX1 AF level with WSJTX
Replies: 27
Views: 761

Re: RX1 AF level with WSJTX

I should have added above that I keep all RX audio levels at 100% (0dB). Mainly I do this to make VAC act as a virtual line output. I use VAC exclusively for all operations since my radio is in the basement and the operating location is in a second floor office. I do all of my level control outside ...
by w-u-2-o
Tue Jul 10, 2018 1:04 am
Forum: Digital Mode & Logging Software
Topic: RX1 AF level with WSJTX
Replies: 27
Views: 761

Re: RX1 AF level with WSJTX

Hi Tony, this is a great question, and I am curious what others do as well.

I have not done any scientific testing, but I tend to run the RX gain at -10dB for both WSJT-X and Fldigi. The waterfall displays in both just look better that way to me.
by w-u-2-o
Mon Jul 09, 2018 8:00 pm
Forum: Digital Mode & Logging Software
Topic: Guidelines For Best Transmitted Signal Quality With Digi Modes
Replies: 7
Views: 775

Re: Guidelines For Best Transmitted Signal Quality With Digi Modes

Great question, Tony, but perhaps worthy of it's own topic, since this one is about transmitted signal quality, not received signal quality. Would you mind starting another topic, please?
by w-u-2-o
Sun Jul 08, 2018 8:42 pm
Forum: Everything Else: Antennas, Relays, Switches, Power, Grounding, Cooling, etc.
Topic: External 10MHz clock question: Sample clock
Replies: 5
Views: 251

Re: External 10MHz clock question: Sample clock

I have to agree with you, Conrad, the tone of the ad copy definitely leads one to believe the actual experience in terms of documentation and support will be more akin to a mainstream radio brand than it is. I, too, was somewhat disappointed at the start. Heck, right out of the box I had the classic...
by w-u-2-o
Sun Jul 08, 2018 4:06 pm
Forum: Everything Else: Antennas, Relays, Switches, Power, Grounding, Cooling, etc.
Topic: External 10MHz clock question: Sample clock
Replies: 5
Views: 251

Re: External 10MHz clock question: Sample clock

Again, all you need to do is refer to the schematic. The 122.88MHz oscillator is a VCXO, a Crystek CVHD-950 if memory serves. The voltage on the control pin is provided by the output of a PLL that is instantiated in the FPGA firmware and which is locked to the 10MHz reference. I'm not 100% sure of t...
by w-u-2-o
Sun Jul 08, 2018 12:56 pm
Forum: Thetis
Topic: Thetis needs a new name!
Replies: 3
Views: 307

Re: Thetis needs a new name!

Old school LOL! I believe this is more who they were thinking about.

I don't know who named it, or why, or why the dev's have a fascination with naming everything after Greek mythological figures.
by w-u-2-o
Sat Jul 07, 2018 9:02 pm
Forum: Everything Else: Antennas, Relays, Switches, Power, Grounding, Cooling, etc.
Topic: Anan 10 - Chattering Relay.
Replies: 1
Views: 111

Re: Anan 10 - Chattering Relay.

Drop the factory a line directly requesting service.
by w-u-2-o
Sat Jul 07, 2018 9:01 pm
Forum: Everything Else: Antennas, Relays, Switches, Power, Grounding, Cooling, etc.
Topic: External 10MHz clock question: Sample clock
Replies: 5
Views: 251

Re: External 10MHz clock question: Sample clock

The 122.8 MHz crystal is always used and all clocks are generated and locked the same way, regardless of whether the 10MHz reference is internal or external. The hardware design alone shows this, as the firmware does not know where the 10MHz reference is sourced from, i.e. there is no hardware input...
by w-u-2-o
Fri Jul 06, 2018 12:53 pm
Forum: Everything Else: Antennas, Relays, Switches, Power, Grounding, Cooling, etc.
Topic: ANAN 10E AUDIO PROBLEM
Replies: 9
Views: 314

Re: ANAN 10E AUDIO PROBLEM

Hi Mark, The problem is that the PowerSDR code is total spaghetti, and nobody knows all of the dependencies in it. This can scramble databases in really weird and unexpected ways. The one thing you should do is maintain multiple, separate configurations for PowerSDR, one for each type of radio or ra...
by w-u-2-o
Fri Jul 06, 2018 11:33 am
Forum: Everything Else: Antennas, Relays, Switches, Power, Grounding, Cooling, etc.
Topic: ANAN 10E AUDIO PROBLEM
Replies: 9
Views: 314

Re: ANAN 10E AUDIO PROBLEM

The advice to use VMB was not to fix audio coming from the hardware unit, but to allow you to use the radio more normally through your PC, especially since it would appear that your hardware may be broken :( As you point out, the 100D works fine. Barring any setup problems in PowerSDR, this seems to...
by w-u-2-o
Fri Jul 06, 2018 1:21 am
Forum: Everything Else: Antennas, Relays, Switches, Power, Grounding, Cooling, etc.
Topic: ANAN 10E AUDIO PROBLEM
Replies: 9
Views: 314

Re: ANAN 10E AUDIO PROBLEM

That's very strange, Mark. If you've got good VAC audio then you ought to also have good audio out of the hardware unit. That you don't implies something wrong with your Ethernet connection in the PC to hardware direction. However, if your RF output is good, again, that makes no sense. As for fully ...
by w-u-2-o
Thu Jul 05, 2018 11:25 pm
Forum: Everything Else: Antennas, Relays, Switches, Power, Grounding, Cooling, etc.
Topic: Problem with multiple antennas
Replies: 3
Views: 195

Re: Problem with multiple antennas

Ok, it's not the switch. Go into the shared antenna configuration where the signal is attenuated. Then physically disconnect the RX1 connection. What happens? If the problem goes away it's not software (and I don't think it is). I'm thinking more along the lines of poor isolation in the splitter. Wh...
by w-u-2-o
Thu Jul 05, 2018 8:48 pm
Forum: Everything Else: Antennas, Relays, Switches, Power, Grounding, Cooling, etc.
Topic: Problem with multiple antennas
Replies: 3
Views: 195

Re: VAC2 attenuation?

What happens if you eliminate the switch? Pick an antenna and connect the outputs of its splitter to both ANT2 (for instance, but it has to be the selected antenna) and RX2 at the same time? Does the behavior still happen then?
by w-u-2-o
Wed Jul 04, 2018 8:19 pm
Forum: Digital Mode & Logging Software
Topic: WSJT-X FT8 - OpenHPSDR 3.4.9 - 60M
Replies: 8
Views: 313

Re: WSJT-X FT8 - OpenHPSDR 3.4.9 - 60M

Or...in PowerSDR change your region to "Extended", but be careful because PowerSDR will now allow you to transmit outside of band allocations so being legal becomes all about operator skill ;)
by w-u-2-o
Wed Jul 04, 2018 1:43 pm
Forum: Digital Mode & Logging Software
Topic: WSJT-X FT8 - OpenHPSDR 3.4.9 - 60M
Replies: 8
Views: 313

Re: WSJT-X FT8 - OpenHPSDR 3.4.9 - 60M

I don't want to turn this topic into a major rules debate, but there are two interpretations of 47CFR97.303(h) among amateur operators: a) If you believe that emission designator 2K80J2D includes FT8 transmitted anywhere within the allowed 2.8KHz passband, then simply set your dial frequency to one ...

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