Difference between revisions of "Teamspeak index 2009"

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(18 July: more)
(18 July: more)
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33 Battery power supply and limitations.<br />
33 Battery power supply and limitations.<br />
34 Spectrum monitoring and usage.<br />
34 Spectrum monitoring and usage.<br />
38 Minimum discernible signal (MDS)on Mercury. <br />
38 Minimum discernible signal(MDS)on Mercury.<br />
43 Back to Cyclops inductors.<br />
43 Back to Cyclops inductors.<br />
46 Cyclops frequencies.<br />
50 FPGA clock inputs and PLLs inside the FPGA.<br />
53 Cyclops part numbers. VCOs.<br />
==11 July==
==11 July==

Revision as of 19:45, 18 July 2009

This is an index of the subjects discussed in the weekly Teamspeak sessions. Mike Naruta edits the sessions to improve the audio quality and keep the session 'on topic', see: this email for details of the editing. Times shown are minutes from the start of the session (in the edited version).

Use your web browser search facility (control F) to search it.

18 July

Audio file is here. Total (edited) session time is 84 minutes.

00 Dave (KV0S) in the chair.

George, K9TRV. KISS graphics improvements, Waterfall. Possibility of using Mono to port to Linux & Mac. AGC.
Graham, KE9H. Cyclops clean-up and incorporation of comments. Integrating HPSDR into Pandora.
Greg, ZL3IX.
Mike, AA8K. Windows 7 investigation, DRM issues.
Phil, VK6APH. KISS waterfall, AGC. Ozy V1.4 bug chasing making progress.
Richard, VK2NRA.
Bill, KD5TFD. Fixed FPGA related bug.

10 Cyclops design trade-offs, filters. Power supply sensitivity of the VCO. Supercaps. Using variable caps in filters.
23 AGC in KISS, threshold.
29 Iphone developments fed from ghpsdr.
33 Battery power supply and limitations.
34 Spectrum monitoring and usage.
38 Minimum discernible signal(MDS)on Mercury.
43 Back to Cyclops inductors.
46 Cyclops frequencies.
50 FPGA clock inputs and PLLs inside the FPGA.
53 Cyclops part numbers. VCOs.

11 July

Audio file is here. Edited time is 44 minutes, real time was 2 hours.

00 Mike (AA8K) in the chair.

Dave, WA8YWG. Report on HPSDR progress.
Phil, VK6APH. Working on Verilog code. Hard to find the bug... will work this week on KISS console, AGC work continuing. KISS console initialization needs some work. Doco on Cyclops coming. OzyII coming along.
Richard, VK2NRA. Now all working - thanks to Phil and Bill.
Rick, VE3MM. Enjoying summer and the returning sunspots.
Bill, KD5TFD. Remote debugging... will look at up-migration of PowerSDR.

07 Initializing Ozy in KISS console (KK).
08 Distortion in Mercury and Penelope....
12 PC latency and volumn level. 14 Resistor fix in Ozy.
16 KISS console initializing problem ideas.... and interactive work between Phil and Bill. Fixed! and release coming.

Text messages

4 July

Audio file is here

00 Dave (KV0S) in the chair. ghpsdr coming along. Iphone SDK being used for HPSDR.

Duane, W5PNM. Ubuntu PC died. Enjoying KISS console. Demo-ing HPSDR.
George, K9TRV. KISS console AGC. Multi RX is sweet.
Phil, VK6APH. Working on Verilog code - FPGA to FX2 on Ozy. Looking at PLL on Ozy (possible audio problem source). Doing some Cyclops work with Graham.
Richard, VK2NRA. Making progress on station setup.
Bill, KD5TFD. Problem solving, couple of reflector questions.

09 Hermes?? Where is is all going? Led to longer discussion on Cyclops, Hermes, Schematic, ..
17 OzyII - approved budget. Looking for parts, etc...
18 Thor PWM progress.
20 Iphone and a bandscope.
21 KISS console and Penelope.
22 AGC code. Decay time.
24 Dual receivers in Mercury. Speed constraints in FPGA and on the USB bus. LVDS between boards.
31 AGC parameters.

27 June

Audio file is here

00 Dave (KV0S) in the chair.

George, K9TRV. KISS Konsole, sharp DSP, syn mode working, looking at CPU load and AGC code.
Graham, KE9H. Fans for Pandora - 92mm fan needed. Minor change to Excalibur to shield TXO. N12 GPS boards from China.
Greg, ZL3IX. Multi receive working well.
Phil, VK6APH. Working on KISS Konsole user interface, S meter calibration, and AGC. Added control for gradical lines. Working on FPGA audio glitch - waiting for code.
Richard, VK2NRA. Wiki teamspeak index, working on HPSDR station setup.
Rick, VE3MM. Contesting with CW skimmer - worked well with Mercury.
Bill, KD5TFD. Helping people with problems.

15 Jack in ghpsdr, communication with PC, dropped 'packets'... better routing of I & Q in the PC.
21 'FL digi' digital modem program interfacing.
31 Wiki Teamspeak index, Is it useful? Who to do it?
35 USB (G8KBB) interface to N2PK VNA.
38 Cyclops spectrum analyser design (redesign) and chip selection.
44 N2PK - FX2 - USB interface chip selection, power supply.
46 Pandora fan.
47 Parts ordering for N2PK VNA, volumn purchasing.
51 Reflow soldering, hot air gun.
54 Sync, Async communication with PwrSDR. Version checks in PwrSDR. FPGA code revision.

Text messages

20 June

Audio file is here.

00 Dave (KV0S) in the chair. Canvas web browser interface.

George, K9TRV, progress on KISS console.
Greg, ZL3IX, Mechanically RF tight enclosure... grounding USB connection. Drive level.
Phil, VK6APH, KISS click and drag tuning. Fix drag bug. Working on S meter. AGC work - George is being very modest. Working with Kirk on Ozy + Janus code, making good progress.
Bill, KD5TFD, Scaling PwrSDR with multiple cores.
Al, N0TVJ, Blackfin with ucLinux.

10 Multi-receive - does it work? It should. Maybe back down on the display update setting to lower CPU load.
14 Email
15 Acorn distributed servers.
18 ghpsdr - Making progress - getting ready to write transmit elements. Has 48, 96, 192K displays.
20 Multi core loading continued with graph.
22 AGC SW sampling rate... S meter.
26 Multi receive again. CPU speed, buffering, etc.
30 Blackfin / Beagle use. Beagle is probably more capable.
39 .... Close, 73s.

13 June

Audio file is here.

On this week's session: some hints on desoldering the Penelope transformer, possible Ozzy dot-dash reversed, and bandpass filter selection. Considerable discussion of mouse movement to control the KISS console frequency

6 June

Audio file is here.