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Re: Change in noise vertical scale
Rob Robinett
Yes, you can change the graph min/max in your conf file, but I can't find it right now. Clint is using that feature, so maybe he can help. I have added this to the list server so others can learn too...
On Sat, Jul 3, 2021 at 5:55 AM Bill Liles <lilesw@...> wrote:
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Re: Huge X-flare just hit us...
WA2TP - Tom
Ulli, I saw the same here. all of s sudden spots count uploads went from ~50-60spots per cycle down to 6-10.
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Re: Intl. WSPR Beacon Project - Grafana Dashboards
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Re: Intl. WSPR Beacon Project - Grafana Dashboards
I am hearing the beacon on 40,30 and 20. Between -13 and -27 SNR
73 Steve KD2OM
On 7/3/21 1:01 PM, Roland wrote:
Just a quick heads up, first WSPR Beacon has gone live. IUS2PJI is band hopping on 8 Bands. More Beacons will follow very soon
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Huge X-flare just hit us...
ON5KQ
Within a few minutes all signals on shortwave are complete erased and only noise can be heard from 1.8 to 30Mhz....
Just building at the antennas, I thought my equipment is hit by a static discharge and dead (as we have some thunderstorms arround) but is is just the X-flare switching the ionosphere off.... Yes, the sun is awake, and instead of builing beverage antennas for the low bands the coming years is building big Yagis for 20m and up.... hi 73s, Ulli 
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Re: Intl. WSPR Beacon Project - Grafana Dashboards
Just a quick heads up, first WSPR Beacon has gone live. IU2PJI is band hopping on 8 Bands. More Beacons will follow very soon
https://www.google.com/maps/d/u/1/edit?mid=14X0GJ4vSQ7D8piZfuHDs902Y9tINuPqB&usp=sharing 73 Roland
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Re: How to configure RTL_SDR
Thanks Rob quickly reply! OK all about RTL_SDR issues, I will continue to looking for your progress to resolve it. "Wsprdaemon" is the best for energy saving wspr receiving.
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Re: How to configure RTL_SDR
Rob Robinett
Welcome Hidehiko,
The RTL-SDR support in WD V2.x is very experimental and even I haven't used it in many months. 'wd -i' is used with baseband AUDIO input devices which is functional but to use it you will need to attach one or more USB audio input dongles. In WD v3.x I am adding full support for RTL-SDRs and any other SDRs which have ;SoapyAPI' drivers with the primary goal of having WD support the VHF/UHF bands not supported by the Kiwi. However I have foudn that the RTL-SDR drivers tune very inaccurately by WSPR requirements. When I program a GSPDO driven RTL-SDR to tune up 1 Hz, it may jump up 400 Hz or down 200 Hz. I suspect that WSPR users of RTL-SDRs are able to fiddle with their tuning and get WSPR decoding to work, but I haven't been able to find a SW algorithm which can do that tuning adjustment. So until I (or someone else) finds a way to work around that problem, I don't think RTL-SDRs are going to be useful with WD. Rob
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How to configure RTL_SDR
Hello, **** List of CAPTURE Hardware Devices ****
Can't find any audio INPUT devices on this server
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getting data
Jim Lill
I have added this to the data system I maintain. It's for those wanting to do local plotting etc. and not use Grafana or other means http://jimlill.com:8088/getdata.html/?call=WA2ZKD
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Re: kfs Omni - signal levels
ON5KQ
Hi Rob,
This night, 22 June just after local Midnight in California, I checked the Omni Antenna at kfs again: - both ports indeed show exactly the same signal (port 8073 and 8083) as it should - as it is the same signal - the signal level seem to be further reduced as the background noise on 10m today is at -108dBm level, which is ok... my earlier observation (see above) showed a background noise level on 10m (at the time of dead band) about 6-8db higher... - no OV clipping indication - no IMD at the low end frequency (1.8...3Mhz) - notch arround 3.5Mhz persists... Last Sunday, I checked the bands on all antennas in the local morning time at earlier daylight hours. I hoped, that noise and interference may be little less than during the week, assuming sourrounding light industrial/commercial activity be more quit on Sunday. I was shocked however how strong the QRM from broadband noise sources was at about 8h30 in the morning on the high bands especially 12 and 10m... The Noise was at least 10db higher than I have it usually here. That said, I believe my antenna's net gain is probably not less than what the KFS kiwi's see there. I am using a terminated Rhombic on 10m with additionally 17db net preamplifier gain. Still my noise level is 10db lower ! Noise level on 10m on all antennas at kfs was extremely high (in the -90s dbm !) I was not prepared to make a detailed report and didn't have the time at Sunday unfortunately, but I will check it again next weekend. Now at midnight today the noise on 10m is much lower at kfs = there must be something locally radiating like hell to produce that bad reception last Sunday morning (broadband power line noise ?! Influence of local rain shower ?) May be other local Hams can have a further look to that as well and report the reception on 12m/10m during local daylight hours from kfs... Greetings to KH6! Ulli, ON5KQ
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Re: 8088 Page restored
Jim Lill
For those that have asked about the dupe % etc. I did some testing and found that simply consumes too much processing time and with spots > 2M would be an issue
toggle quoted messageShow quoted text
On 6/20/21 5:46 AM, Jim Lill wrote:
After a power loss related issue, a few days ago. The header of my Ranking Page is now working again.
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8088 Page restored
Jim Lill
After a power loss related issue, a few days ago. The header of my Ranking Page is now working again.
-Jim
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Re: 8 way splitter for GPS to kiwi's and GPSDO needed
Jim Lill
ground paths via GPS can be a real issue. I have found that the
Time Machine stuff is very bad.
On 6/19/21 2:46 PM, Rob Robinett wrote:
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Re: 8 way splitter for GPS to kiwi's and GPSDO needed
Rob Robinett
Glen is of course right that it is desirable to not have a GPS splitter introduce ground loops between Kiwis. However like Steve I have been very successful using simple satellite splitters like this one available from amamzon.fr for 16 euros: The $13 splitter I use in the US is: https://smile.amazon.com/gp/product/B01KCY5MBU/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 At KPH and at AI6VN/KH6 I put the GPS antenna on the roof and ran 30M of RG-6 to the splitter, then directly connected the splitter output to the Kiwis and have run that way for years without problems. The RF signal gain from having the antenna on the top of the roof more than makes up for the 12 dB signal loss in the RG-6 and the additional 10+ dB in the splitter. I use no DC blocking. Test the RFI level with and without the GPS connections to the Kiwis to see if introducing the splitter adds to your RFI. If so, then a specialized splitter is of course justified.
On Sat, Jun 19, 2021 at 9:59 AM Glenn Elmore <n6gn@...> wrote:
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Re: 8 way splitter for GPS to kiwi's and GPSDO needed
Glenn Elmore
Lots of splitters available but they all end up tieing grounds together which can make a bad situation worse and more complex. Complete low frequency isolation is desireable but requires special effort.
On Jun 19, 2021 10:31 AM, KD2OM <steve@...> wrote: Ulli,
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Re: 8 way splitter for GPS to kiwi's and GPSDO needed
Ulli,
I don’t know if an 8 port splitter is available but I am using a 4 port TVRO splitter. The ones meant for satellite TV have one DC thru port and the rest DC blocked. I would imagine the same type is available in Europe. It is 75 ohms with F connectors. 73, Steve KD2OM
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Re: 8 way splitter for GPS to kiwi's and GPSDO needed
WA2TP - Tom
Ulli,
toggle quoted messageShow quoted text
I had this same request and brought it to the attention of Makis SV1AFN.
He advised he is working on an 8 port with filtering (an active splitter with
4 or 8 ports, with filters against cell-phones and towers and for all GNSS bands).
I have tied him in so he is aware of the growing need and interest.
Tom WA2TP
On Jun 19, 2021, at 11:48 AM, Glenn Elmore <n6gn@...> wrote:
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Re: 8 way splitter for GPS to kiwi's and GPSDO needed
Glenn Elmore
Ulli, I think you are correct in stating your requirements. I don't
have a complete solution to recommend but I did build a DC
isolating GPS board that serves to provide GPS to a single Kiwi
without also adding a low frequency path. For those running
multiple Kiwi's from a single GPS source, probably an N-way
version of that along with a single DC bias tee or connection to
one of the GPS ports is what needs to be constructed. But then
there's the question of "what is N?" and 2,4 8 way versions of the
thing would need to be fab'd. It's probably simpler to run dedicated GPS antennas on each Kiwi in situations where a good antenna location is close enough. For the general situation like you describe, an isolating filter is really what is desirable. Glenn
On 6/19/21 4:59 AM, ON5KQ wrote:
Hi,
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8 way splitter for GPS to kiwi's and GPSDO needed
ON5KQ
Hi,
Can anyone recommend a 8way splitter to connect my kiwis and a GPSDO for my lab. What technology I need to look for, to pass DC to the outside antenna but don't (DC-)connect all Kiwis together... I think the kiwis need to be (DC-)isolated to each other I do not want to import from outside EU however, as current customs costs are horrendous... Ulli, ON5KQ
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