20-11-2018, 04:06 PM
(18-11-2018, 03:23 PM)VK4ADC Wrote: I will "box it" in the next few days so that only power and antenna connections are required but will have a DC power switch plus a reset switch for the Pi on the outside. It looks like it will have to be plastic as the Zero W has an internal WLAN antenna - unfortunately.
Hayden
WLAN won't work through a metal box and it needs that for me to SSH into it plus it get NTP timing corrections
I have a nice diecast box all ready though.
It is only while transmitting that the broadband noise is present : WSPR carrier is S9+60 on the radio on 50.293 but the 'white' noise off freq (eg 50.110) and on the other HF bands is a minimum of S7 and beyond S9+. The 3-terminal regulators (x3 : 8V [common to], 6V [PA] & 5V [Pi]) all have stability capacitors fitted so I doubt that they are a contributing factor.
As a workaround, I have ordered a mini-HDMI and OTG adapter so that I can hard-wire in to it for monitor, USB keyboard and mouse but unless I can get a USB WLAN adapter (via OTG) to work in lieu of the internal WLAN then metal boxing is not going to work. At this stage it is not ruled out completely, just unlikely. Don't quite know how long they will take to arrive - late this week perhaps.
I am not going to have much more free time this week, or next, so it will have to wait.
On a different note, WSPRView V1.0.0.10 is being released shortly and the current email support problems should be resolved with it.
Doug
Doug VK4ADC @ QG62LG51
http://www.vk4adc.com
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http://www.vk4adc.com
This Forum is only going to be as interesting as the posts it contains.
If you have a comment or question, post it as it may trigger or answer the query in someone else's mind.