Looks like it was a browser issue.
Clearing cookies resolved it.
Thanks,
Martin
"Many thanks, there seems to be so much to look at with so many tabs on the admin page."
There are so many user cases that it's difficult to cater for everyone. But the more you use your KiWi, the more thankful you will become that a specific feature has been included in the admin setup.
I run several different types of web sdr, and the KiWi is the one that has incorporated the most useful features and suggestions from users and admins alike.
Many other developers will simply ignore such requests, because they personally don't understand the requirement, or simply focus on the software, rather than the needs of the users.
Some other web sdr's, require you to be a Linux guru before you can get up and running, so the KiWi is pretty much "plug and play" in comparison.
Regards,
Martin
Well, the complexity is a result of people asking for features over the years. That's the trade-off. I try and limit it as much as I can. It's a thankless task, as some people are always unhappy..
If all channels are full you'd have to "kick" a channel via the button on the admin status page to create a free channel for you to connect.
Alternatively, you can reserve one of the channels by setting a user password on the admin security tab and then set "number of channels not requiring a password even if password is set" to 3 (assuming you're using 4-channel mode). Then that channel will always be available for your use. You won't have to actually give the password if you're connecting from the local network.
You could also use the "camp" interface to wait in queue for a free channel to become available if you don't want to permanently reserve a channel and don't want to kick someone. But you will be waiting an arbitrary amount of time in that case. The camp panel appears automatically when you attempt to connect when all channels are full.
It's fine to use the default serial number as the Kiwi name for a publicly listed Kiwi. Lots of people do that.
I know the majority of Kiwi owners are only interested in HF, but there are many of us who do a lot of MW DX. The network of public Kiwis are highly useful for trying to track down a weak MW station, especially one that doesn't have an online stream. Using my own Kiwi and comparing to another Kiwi, you can often hear the 1:1 echo of a station between the two SDRs. So its unfortunate to see once really good Kiwis in desirable areas suddenly go "deaf"...or so you think until you zoom the waterfall out and see VLF and HF are as alive as can be and it's only the AM band that is deaf 😖...
So instead of implementing an MW BCB filter, I'd encourage trying a few dB of attenuation or try constructing notch filters for those specific problem frequencies.
A couple more once good Kiwis, including one out in California I often used, just tossed MW filters on them within the past month or so.
I post firmware to control PE4302 attenuator via ESP8266 on GitHub now.
I have an ESP running an attenuator right now. I wrote the program for ESP myself. Everything has been working fine for almost a year. It will not be difficult to rewrite the software for managing this switch. And I don't understand why to use a board with a relay. GPIO ESP will be enough.
I received an HMC253 (DC-2.5 GHz) board today for $8. I also have an ESP8266 for $2. These are the cheapest materials from which you can assemble an antenna switch controlled via USB.
You only need sufficient attenuation to take the strongest broadcast stations down by just enough to prevent ADC overloads from occurring. I generally try to keep all signals across the 0-30MHz spectrum below -30dB.
If you have an existing band stop filter, with too much attenuation, you can connect a 1K ohm variable resistor between the input and output of the filter, and then adjust the value until you have enough attenuation to prevent overload occurring at night, but still allow some signals to pass through at a usable level.
Even on a receive site where I had strong signals from local medium wave transmitters, I've not had to introduce more than 20dB of band reject filtering to fix the problem. In most cases, a simple 10dB slope frequency / amplitude equaliser provides a good compromise.
This and other techniques have been discussed in many previous threads, so it's worth searching for those.
Regards,
Martin
I use an RF switch board with HMC849 (important because it goes down to DC) in conjunction with a relay module with ESP8266 (then flashed with the Tasmota firmware).
This is certainly not the ideal combination, but works well enough for me with 2 antennas.
Regards, Steffen
