Hello everyone,
we have noticed, during EU passes, that UKUBE-1 starts trasmitting noise every 2-3 minutes. Looks like a spurious signal saturating and covering about half of the passband.
Any idea ?
73 Fabio F5VKV
I have observed the same behavior on passes over South America. The transponder passband singal is as strong as the FunCube BPSK beacon.
73, Edson PY2SDR
--- - We humans have the capability to do amazing things if we work together. - Nós seres humanos temos a capacidade de fazer coisas incríveis se trabalharmos juntos.
On Thu, Dec 8, 2016 at 10:14 AM, Fabio R. roccaf@gmail.com wrote:
Hello everyone,
we have noticed, during EU passes, that UKUBE-1 starts trasmitting noise every 2-3 minutes. Looks like a spurious signal saturating and covering about half of the passband.
Any idea ?
73 Fabio F5VKV _______________________________________________ Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
The cause is the primary transceiver onboard the satellite transmitting it's beacon signal and overloading the receiver on the FUNcube-2 transponder.
73,
Paul, N8HM
On Thu, Dec 8, 2016 at 7:23 AM, Edson W. R. Pereira ewpereira@gmail.com wrote:
I have observed the same behavior on passes over South America. The transponder passband singal is as strong as the FunCube BPSK beacon.
73, Edson PY2SDR
- We humans have the capability to do amazing things if we work together.
- Nós seres humanos temos a capacidade de fazer coisas incríveis se
trabalharmos juntos.
On Thu, Dec 8, 2016 at 10:14 AM, Fabio R. roccaf@gmail.com wrote:
Hello everyone,
we have noticed, during EU passes, that UKUBE-1 starts trasmitting noise every 2-3 minutes. Looks like a spurious signal saturating and covering about half of the passband.
Any idea ?
73 Fabio F5VKV _______________________________________________ Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership.
Opinions
expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite
program!
Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
The satellite's primary beacon causes many signals to disappear on the transponder when it is active. If you adjust your power, you can sometimes overcome it. :-) When the primary satellite beacon stops, the transponder will resume normal performance.
It is fun to play a game and see when it catches you. Sometimes you get caught in the middle of QSO or calling CQ.
I enjoy working UKube-1 because it is very strong. It is getting a fair amount of users over the USA.
73 Clayton W5PFG
On 12/8/2016 06:14, Fabio R. wrote:
Hello everyone,
we have noticed, during EU passes, that UKUBE-1 starts trasmitting noise every 2-3 minutes. Looks like a spurious signal saturating and covering about half of the passband.
Any idea ?
73 Fabio F5VKV
participants (4)
-
Clayton W5PFG -
Edson W. R. Pereira -
Fabio R. -
Paul Stoetzer