Are there any PSK31 traffic nets?

I would like to be able to broadcast a properly formatted PSK31 message, including the address or phone number of someone not able to use amateur radio, and expect it to be passed along until someone who could deliver it locally got it.

I have some ideas about how this might be implemented, if it hasn't been already.

David
VK2HLG

Does anyone have any idea what the interference across the top of this WSPR display is?

http://i292.photobucket.com/albums/mm1/hazydavy99/WSPRQRM_zps62297509.jpg

Is that slow frequency change characteristic of anything in particular? Just asking. It's not really causing trouble.

Ah, now I am getting out. I had the wrong audio output device selected in the configuration of the WSPR client. It's the one that says "USB Audion CODEC."

Thanks!

Hello everyone.

Any ideas what is wrong with my installation of an Opek HVT-400B? I am trying to use in for WSPR on 20m, and while it seems to hear plenty and tunes to 1:1 SWR for transmit, no one hears me, not even a station within walking distance.

Here's the installation (I don't know why we can't embed remote-hosted photos here):

http://i292.photobucket.com/albums/mm1/hazydavy99/DSC_0899_zps3b0eccf4.jpg

http://i292.photobucket.com/albums/mm1/hazydavy99/DSC_0898_zps40abe0df.jpg

That's the roof of a garden shed. The gray corrugated parts are steel; the white parts are transluscent plastic. The base of the antenna is about 2.5 meters (7 feet or so) in the air. It's not high, but it's higher than a car, which is what this antenna was intended for.

The antenna's fed by about 50 meters of coax, connected to an ICOM 7200 via a Palstar AT2K. Like I said, 1:1 SWR.

Any advice? Thanks.

David VK2HLG

Regarding Xmas, the X character is actually meant to be the Greek letter chi, a standard abbreviation in theology for the christ.

http://en.wikipedia.org/wiki/Xmas

VK2HLG

Happy to be able to post something other than a question for a change!

It definitely has four segments. I tested them with a continuity meter.

Though the unit is more than 10 years old, it's never been modified.

My guess is that one of the rings is not used. I will plug it into a standard PJ-068 jack and just use its outputs.

Thanks, KG4RUL, for posting that schematic. I'm planning to build an adapter as well.

I'm pretty much a rookie at this, so please pardon some questions.

1. My headset is a David Clark H10-13.4S, which has a mono/stereo switch on its cable (which I believe affects only the earphones). As well, it has what appear to be four conductors on the microphone plug (the plug is a PJ-068 [.206-inch phone plug] type). This confuses me, because your schematic shows only three connections, and also because the only .206-inch plugs I can find show three connections as well. This drawing refers:

http://www.switchcraft.com/Drawings/S13B_CD.pdf

This is a photo of my headsets plugs. The microphone one is in the foreground:

http://i292.photobucket.com/albums/mm1/hazydavy99/DSC_0657.jpg

Can anyone explain how a four-conductor microphone plug corresponds to KG4RUL's schematic?

2. I tested the pins on the 8-pin microphone connector on my IC-7200 and found that pin 2 delivers 9 VDC, rather than the 8 VDC specified in its schematic.

This is okay, right? KG4RUL stated that the David Clarks want 5-15 VDC. Is that on the David Clark site somewhere?

Thanks.

VK2HLG

Hello. This is my first post after a year of lurking.

My wife, kind and generally excellent though she is, is a worrier. Anything that might have an adverse health effect, however obscure, is a big concern for her.

So, when she found out that when I am sometimes running 20m WSPR at 5 or 10 watts overnight on my G5RV dipole (about 40 feet above ground, about 30 feet above and perpendicular to the roof of our one-story house), she objected, claiming a radiation hazard.

I told her that the two nearby TV towers (both about 2km away) are surely blasting more energy into us than my WSPR experiment. I didn't say it, but I am sure our IEEE 802.11n (Wi-Fi) router is, also.

How can I prove this? She is a scientist and would listen to real calculations. She won't believe, "There are no reported cases..."

Thanks.

Dave
VK2HLG