alfille commented 7 years ago

When I ran on P1 1B I get a frequency on GP4 that is double the specified (and reported frequency). For instance, trying 20m the frequency should be 14097100+- but is actually 28194200. And my TAPR filter filters it out.

When I specify 7048550 (half the frequency) GP4 actually is at 14097100 and the beacon works at 20m.

JamesP6000 commented 7 years ago

That's very odd... Can you send me the actual command line you used?

James

alfille commented 7 years ago

Originally:

ExecStart=wspr -r -s -o K1PHA FN42 20 20m

(part of a systemd script)

But then to test

wspr -t 14097100

gave a doubled rate on pin 4 (measured with a HP 5432A frequency counter to the nearest Hz)

and now I use

Seems to double the frequency

so use 20 meter 14097100 / 2 = 7048550

ExecStart=/usr/bin/wspr -r -s -o K1PHA FN42 20 7048550 0 0 0 0

Sucessfully (I added to extra pauses so as not to clutter up the airwaves)

On Mon, Apr 10, 2017 at 6:18 PM, James Peroulas notifications@github.com wrote:

That's very odd... Can you send me the actual command line you used?

James

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/JamesP6000/WsprryPi/issues/7#issuecomment-293095512, or mute the thread https://github.com/notifications/unsubscribe-auth/AAD3MfZMzY_4jKpMi6jYWIFQ7VPGmDESks5ruqrTgaJpZM4M3ho8 .

JamesP6000 commented 7 years ago

I'm still not seeing this behavior... Can someone else confirm this? Are people receiving your transmissions on the double frequency?

JP

alfille commented 7 years ago

This is a Pi 1B. And yes, my beacon is seen in Belgium Venezuela Texas (from Boston). (This is set at 7MH read at 14MHz=20m).

It's a standard Raspbian setup, headless.

JamesP6000 / WsprryPi

Double frequency. #7

Seems to double the frequency

so use 20 meter 14097100 / 2 = 7048550