Search found 116 matches

by DL2XY
Thu Jun 29, 2023 7:27 am
Forum: Thetis
Topic: Direct I/Q and Spectrum Lab
Replies: 2
Views: 782

Re: Direct I/Q and Spectrum Lab

Hi Alan, it's all about dynamic range. 80m bandnoise usually is about -120dB fullscale, input noise of the Anan's somewhere at -150dB FS. You have to make sure that your audio chain and the used spectrum app supports HDR. 16bit resolution is definitly not enought (only 96dB), you need at least 24 bi...
by DL2XY
Sun May 14, 2023 4:22 pm
Forum: Transverters
Topic: Transverter Questions 7000 DLE MK2-3 whatever?
Replies: 3
Views: 24378

Re: Transverter Questions 7000 DLE MK2-3 whatever?

Hi Robert, the SMA XVTR output is for max. 0.5W only. If you need more you have to use the internal PA on one of the three ANT x BNC's. Use the setting below for PA activation: 5W XVTR.png Don't forget to calibrate PA Gain for maximum allowed input of transverter: XVTR PA CAL.png greets Walter DL2XY
by DL2XY
Sun May 07, 2023 9:08 am
Forum: Thetis
Topic: Can we Edit or Add band labels?
Replies: 3
Views: 882

Re: Can we Edit or Add band labels?

Just edit the database with a text editor. Thetis must be closed! Search for "BandText". At the second occurance you will find a chained list of frequencies. Insert your definition at the right position and adapt the "High" value of the previous entry and the "Low" valu...
by DL2XY
Sun Apr 30, 2023 8:24 am
Forum: Thetis
Topic: Thetis v2.9.0.8 - meters and then some more
Replies: 158
Views: 44896

Re: Thetis v2.9.0.8 - meters and then some more

Just calibrate your panadapter!

The value is roughly the attenuation of your coupler, maybe you have to adjust a few dB.
Scale the tx-display and make sure DUP is enabled.

TX_DISP_CAL.png
TX_DISP_CAL.png (30.22 KiB) Viewed 6414 times

tx_disp_scl.png
tx_disp_scl.png (39.84 KiB) Viewed 6408 times
by DL2XY
Wed Apr 05, 2023 7:57 pm
Forum: Thetis
Topic: S Meter issue ( FIXED!)
Replies: 47
Views: 7524

Re: S Meter issue ( not fixed )

n2gq wrote:Hi
Would -43 ok for a lev calibration?

Jay n2gq


-43dBm (S9+30) should be sufficient.
-20dBm(S9+53) would be still better since at least15bits of the 16bit ADC are used.

Walter dl2xy
by DL2XY
Fri Mar 24, 2023 11:33 am
Forum: Thetis
Topic: Anomalous S meter reading on 6m band only
Replies: 4
Views: 952

Re: Anomalous S meter reading on 6m band only

Your values reflect exactly the IARU recommandations for S-meters:

HF: S9 = 50µV = -73dBm
VHF: S9= 5µV = -93dBm

So everthing is perfectly fine.

Walter
DL2XY
by DL2XY
Thu Feb 09, 2023 9:15 am
Forum: Apache-specific Hardware Discussions
Topic: Not sure how to use Open Collector Jack and Thetis settings...
Replies: 14
Views: 1938

Re: Not sure how to use Open Collector Jack and Thetis settings...

An OC is simply a switch towards ground if activated.
There is no intrinsic pull up.
If you want to switch inductive loads (Relay coil) it is mandantory to use the COM pin for freewheeling.

ULN200x.gif
ULN200x.gif (18.43 KiB) Viewed 1926 times
by DL2XY
Mon Jan 30, 2023 8:57 am
Forum: Thetis
Topic: Turn off AGC altogether?
Replies: 4
Views: 943

Re: Turn off AGC altogether?

Dear friends, Is it possible to turn off AGC altogether in Thetis? I do EME and it is useful to measure signal levels at audio where AGC just gets in the way. Note: I'm not asking about turning off "auto AGC gain mode" (which is so redundant.) Thanks, W9IP You want to set the AGC mode to ...
by DL2XY
Sun Jan 29, 2023 6:40 pm
Forum: Thetis
Topic: Poor audio quality on 10M FM receive
Replies: 21
Views: 3226

Re: Poor audio quality on 10M FM receive

Maybe you want to try this workaround: WDSP.DLL with reduced FM demodulator AF output by 12dB. wdsp.zip That's very cool, Walter, thank you! But -12dB is a bit too much. Would you mind creating a patch version with -6dB, please? I assume (hope) that this is x64, right? Yes, its x64. If someone need...
by DL2XY
Sun Jan 29, 2023 11:45 am
Forum: Thetis
Topic: Poor audio quality on 10M FM receive
Replies: 21
Views: 3226

Re: Poor audio quality on 10M FM receive

Maybe you want to try this workaround:
WDSP.DLL with reduced FM demodulator AF output by 12dB.

wdsp.zip
(890.65 KiB) Downloaded 74 times
by DL2XY
Sun Jan 08, 2023 9:01 pm
Forum: Thetis
Topic: S Meter issue ( FIXED!)
Replies: 47
Views: 7524

Re: S Meter issue ( not fixed )

Or you may try to patch the database directly.
Setting the values to zero would reset the calibration.

Database RX Calibration.png
Database RX Calibration.png (69.18 KiB) Viewed 2572 times
by DL2XY
Thu Jan 05, 2023 10:58 pm
Forum: Thetis
Topic: S Meter issue ( FIXED!)
Replies: 47
Views: 7524

Re: S Meter issue ( not fixed )

. By default Thetis reports about 7dBm in excess, ( a calibrated -73 turns into -66 dBm.) Do not calibrate at -73dB ! This is an ADC-System, ADC's need to be calibrated near fullscale. -20dBm should be fine. Calibrating at S9 means 1/1000 of fullscale voltage, so the software must extrapolate by a ...
by DL2XY
Thu Dec 22, 2022 5:42 pm
Forum: Network Connections & Network Hardware
Topic: Frequent Sequence Errors Again
Replies: 13
Views: 3715

Re: Frequent Sequence Errors Again

VLAN would not help at all since all traffic would still be in the physical network.
The golden way ist to use a dedicated NIC with direct connection to ANAN. (detach all protocolls and services but IP-V4 from it)
by DL2XY
Mon Dec 19, 2022 7:20 pm
Forum: Amplifiers & Tuners
Topic: 7000DLE interfaced with MFJ-998 Tuner?
Replies: 4
Views: 2409

Re: 7000DLE interfaced with MFJ-998 Tuner?

Has anybody interfaced the MFJ-998 Auto Tuner with an ANAN radio to band follow or especially being able to bypass the amp with the tune function while causing the transceiver to put out a tune signal? I can't find any data on the MFJ-998 pin out or data function to push the tune button and cause t...
by DL2XY
Mon Dec 19, 2022 7:02 pm
Forum: Amplifiers & Tuners
Topic: Interfacing with the Heathkit SB-230 and ANAN 7000 DLEMKII
Replies: 17
Views: 4363

Re: Interfacing with the Heathkit SB-230 and ANAN 7000 DLEMKII

Looks reasonable, mine is 5.6 Ohm.
by DL2XY
Sat Oct 15, 2022 2:07 pm
Forum: Thetis
Topic: Pure Signal2 and network bandwidth note!
Replies: 9
Views: 1856

Re: Pure Signal2 and network bandwidth note!

Against better knowlage i had a try on video codec. This is not what i want to look at! Even at 25mbit/s (4 times the IQ-stream) the quality is not acceptable. (Please explore the screenshots at 100% resolution) Correction That was a scaling problem. The capture app had scaled 1280x1024 to 720p and...
by DL2XY
Wed Oct 12, 2022 6:43 pm
Forum: Thetis
Topic: Pure Signal2 and network bandwidth note!
Replies: 9
Views: 1856

Re: Pure Signal2 and network bandwidth note!

Video streaming is a little bit of problematic. An uncompressed screen of 1280x1024 pixel at 60 frames per second would take a bandwith of 1.887 Gbit/s. . The 192ks/s IQ stream need only 6.144 Mbit/s, no problem in the age of FTTH-Internet. It contains all infomation needed for Panadapter and Waterf...
by DL2XY
Wed Oct 12, 2022 3:45 pm
Forum: Thetis
Topic: Pure Signal2 and network bandwidth note!
Replies: 9
Views: 1856

Re: Pure Signal2 and network bandwidth note!

w-u-2-o wrote:... Finally add some means to transmit spectral display information from Thetis for the client to render.


It's already there !

IQ-VAC.png
IQ-VAC.png (20.14 KiB) Viewed 1690 times
by DL2XY
Fri Oct 07, 2022 7:42 pm
Forum: Thetis
Topic: GitHub software contributors "welcome pack" ?
Replies: 18
Views: 2897

Re: GitHub software contributors "welcome pack" ?

Ok, i see...

And the 720 lines of "txtVFOAFreq_LostFocus"... :shock:

Hope i never have to work on this part.
by DL2XY
Fri Oct 07, 2022 6:25 pm
Forum: Thetis
Topic: GitHub software contributors "welcome pack" ?
Replies: 18
Views: 2897

Re: GitHub software contributors "welcome pack" ?

... If you want to change frequency today, you convert the frequency you want in Hz from an integer to an ASCII string, copy that string into a text box on the UI then call its "lost focus" method. That can't be right! Some stuff is in UI methods; some is in properties; some is in-line co...
by DL2XY
Sun Jun 12, 2022 3:35 pm
Forum: Everything Else: Antennas, Relays, Switches, Power, Grounding, Cooling, etc.
Topic: anan 200d lowest power output ( a m ) mode.
Replies: 2
Views: 1242

Re: anan 200d lowest power output ( a m ) mode.

Minimum AM carrier is 0.25W at drive level 1.

If you need really small signal levels (0dBm) you may use XVTR output and disable the internal PA.

73 Walter
by DL2XY
Tue Jun 07, 2022 5:20 pm
Forum: Thetis
Topic: PA Gain settings (12 m behaves oddly)
Replies: 6
Views: 1873

Re: PA Gain settings (12 m behaves oddly)

I have a 7000DLE blue face and it was down on power on 12 meters when it left the factory. I sent it to Doug and he put the correct parts in the LPF and sent it back to me. Some units left the factory with wrong parts in the LPF. It is now putting out full power on 12 meters. Don W9BHI Which specif...
by DL2XY
Tue Jun 07, 2022 10:27 am
Forum: Network Connections & Network Hardware
Topic: Gigabit Ethernet switch
Replies: 10
Views: 4037

Re: Gigabit Ethernet switch

elan wrote:hi
any recommendation on Gigabit Ethernet switch tp link ?
or any other
thank you elan ea5iwt/g0uut


Recommendation is none.
Instead use a 2nd NIC for direct connention to radio.

greets Walter
by DL2XY
Wed Apr 13, 2022 2:52 pm
Forum: Thetis
Topic: Running two radios with one computer
Replies: 2
Views: 1206

Re: Running two radios with one computer

The PA calibration is per radio model. You can have both radios (must be different models) in one database. The more elegant way is to have distinct databases for each radio (can be same models, must have distinct fixed IP's) and use -datapath option in command line. This way you can even use them a...
by DL2XY
Fri Apr 08, 2022 5:24 pm
Forum: Thetis
Topic: Does Thetis "announce" frequency changes?
Replies: 2
Views: 1162

Re: Does Thetis "announce" frequency changes?

Yes,

just enable AI.

CAT_AI.png
CAT_AI.png (36.4 KiB) Viewed 1142 times
by DL2XY
Thu Apr 07, 2022 3:42 pm
Forum: Thetis
Topic: Thetis v2.9.0 - Updates and Issues
Replies: 431
Views: 108053

Re: Thetis v2.9.0 - Updates and Issues

I dont need a 2nd slider for TUNE/2TONE. I always tune my antennas with less then 1W (fixed TUNE power) and auto diabled xPA so i have no problems with high SWR during tuning. After that i use 2TONE at normal drive level and auto enabled xPA to "calibrate" pure signal. But limiting normal ...
by DL2XY
Wed Mar 30, 2022 7:51 pm
Forum: Thetis
Topic: No Panadapter Display after 21k9 Update
Replies: 10
Views: 2871

Re: No Panadapter Display after 21k9 Update

I have done some testing, and the vitrualbox 3d driver (which is experimental) is ok with the vector/line stuff, but is failing with the bitmap creation used for the waterfall. It might be because I use a premultiplied alpha, not sure. Another issue is that using the directX debug flags also cause ...
by DL2XY
Mon Mar 28, 2022 8:25 pm
Forum: Thetis
Topic: Thetis v2.8.11 - UPDATES and current issues
Replies: 1752
Views: 864754

Re: Thetis v2.8.11 - UPDATES and current issues

Regarding VAC issues (Buffer misses) and maybe sequence errors in latest 21k9. After running 21k9 for a longer time I experienced a distinct higher number of VAC warnings and seldom sequence errors. The probability is about one to two events an hour on my system, but i heard from other OM's with muc...
by DL2XY
Fri Mar 18, 2022 7:36 pm
Forum: Thetis
Topic: So you downloaded the 32 bit version of Thetis: why???
Replies: 23
Views: 5167

Re: So you downloaded the 32 bit version of Thetis: why???

ramdor wrote:@DL2XY yes, unfortunately the Performance counter is using the processname as the filter so not unique with multiple copies running. To get around that problem could try renaming the exe, for 2nd instance testing I guess.


Yep, works!
by DL2XY
Fri Mar 18, 2022 6:16 pm
Forum: Thetis
Topic: So you downloaded the 32 bit version of Thetis: why???
Replies: 23
Views: 5167

Re: So you downloaded the 32 bit version of Thetis: why???

Just compared x86 and x64 versions: They use nearly exactly the same processor time. But there is a pitfall: If you have both instances started (but only one active at a time) the load display of the active one is false ! Here it shows 5% for real 20% measured with ProcessExplorer. I think both are ...

Go to advanced search