I worked several operators last night on SO-50 at about 0115 UT and then......pffft. I couldn't get into the satellite at all after it passed overhead and to the SE.
Does SO-50 shut down if there's too much use?
I was hoping to work the young woman who kept calling me but she was having trouble or getting stepped on or whatever. She'd get out "W7O...." and then nothing.
Just curious,
Bob W7OTJ
Hmmm, I wonder if this is what happened: " SO-50 also has a 10 minute timer that must be armed before use. Transmit a 2 second carrier with a PL tone of 74.4 to arm the timer."
Bob W7OTJ
On Thu, Mar 19, 2020 at 6:15 AM Bob Hammond [email protected] wrote:
I worked several operators last night on SO-50 at about 0115 UT and then......pffft. I couldn't get into the satellite at all after it passed overhead and to the SE.
Does SO-50 shut down if there's too much use?
I was hoping to work the young woman who kept calling me but she was having trouble or getting stepped on or whatever. She'd get out "W7O...." and then nothing.
Just curious,
Bob W7OTJ
Very likely. And a lot of people don't realize it turns off after 10min regardless of whether it is being used or not. So it will turn off at some point in the pass.
73, John Brier KG4AKV
On Thu, Mar 19, 2020, 09:26 Bob Hammond via AMSAT-BB [email protected] wrote:
Hmmm, I wonder if this is what happened: " SO-50 also has a 10 minute timer that must be armed before use. Transmit a 2 second carrier with a PL tone of 74.4 to arm the timer."
Bob W7OTJ
On Thu, Mar 19, 2020 at 6:15 AM Bob Hammond [email protected] wrote:
I worked several operators last night on SO-50 at about 0115 UT and then......pffft. I couldn't get into the satellite at all after it
passed
overhead and to the SE.
Does SO-50 shut down if there's too much use?
I was hoping to work the young woman who kept calling me but she was having trouble or getting stepped on or whatever. She'd get out
"W7O...."
and then nothing.
Just curious,
Bob W7OTJ
Sent via [email protected]. 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: https://www.amsat.org/mailman/listinfo/amsat-bb
I had not experienced that before. There's always something new to learn in ham radio!
thanks John,
Bob W7OTJ
On Thu, Mar 19, 2020 at 6:53 AM John Brier [email protected] wrote:
Very likely. And a lot of people don't realize it turns off after 10min regardless of whether it is being used or not. So it will turn off at some point in the pass.
73, John Brier KG4AKV
On Thu, Mar 19, 2020, 09:26 Bob Hammond via AMSAT-BB [email protected] wrote:
Hmmm, I wonder if this is what happened: " SO-50 also has a 10 minute timer that must be armed before use. Transmit a 2 second carrier with a PL tone of 74.4 to arm the timer."
Bob W7OTJ
On Thu, Mar 19, 2020 at 6:15 AM Bob Hammond [email protected] wrote:
I worked several operators last night on SO-50 at about 0115 UT and then......pffft. I couldn't get into the satellite at all after it
passed
overhead and to the SE.
Does SO-50 shut down if there's too much use?
I was hoping to work the young woman who kept calling me but she was having trouble or getting stepped on or whatever. She'd get out
"W7O...."
and then nothing.
Just curious,
Bob W7OTJ
Sent via [email protected]. 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: https://www.amsat.org/mailman/listinfo/amsat-bb
Most satellites I have 5 presets for with +/- 0/5/10 kHz offsets from center on the 70 cm band. With SO-50, it's 6 with 5 being setup with the usual PL tone of 67 Hz and one marked with an A for activation and set to transmit the 74.4 Hz PL tone to quickly select it if I don't hear people.
On Thu, Mar 19, 2020, 07:05 Bob Hammond via AMSAT-BB [email protected] wrote:
I had not experienced that before. There's always something new to learn in ham radio!
thanks John,
Bob W7OTJ
On Thu, Mar 19, 2020 at 6:53 AM John Brier [email protected] wrote:
Very likely. And a lot of people don't realize it turns off after 10min regardless of whether it is being used or not. So it will turn off at
some
point in the pass.
73, John Brier KG4AKV
On Thu, Mar 19, 2020, 09:26 Bob Hammond via AMSAT-BB <[email protected]
wrote:
Hmmm, I wonder if this is what happened: " SO-50 also has a 10 minute timer that must be armed before use. Transmit a 2 second carrier with a
PL
tone of 74.4 to arm the timer."
Bob W7OTJ
On Thu, Mar 19, 2020 at 6:15 AM Bob Hammond [email protected] wrote:
I worked several operators last night on SO-50 at about 0115 UT and then......pffft. I couldn't get into the satellite at all after it
passed
overhead and to the SE.
Does SO-50 shut down if there's too much use?
I was hoping to work the young woman who kept calling me but she was having trouble or getting stepped on or whatever. She'd get out
"W7O...."
and then nothing.
Just curious,
Bob W7OTJ
Sent via [email protected]. 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: https://www.amsat.org/mailman/listinfo/amsat-bb
Sent via [email protected]. 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: https://www.amsat.org/mailman/listinfo/amsat-bb
Thanks Loren. Good advice.
Bob W70TJ
I use MacDoppler which allows me to specify which "mode" of the satellite I want to use. I have a special one for the 10-minute timer. When it disappears, I just flip to that mode, hit it with a couple seconds of 74.4, then go back to 67 Hz tone.
Also, this is not what you were experiencing, but unlike the Foxes, the 67Hz tone does not turn it on for a fixed time so that others without the tone can "coattail" in. You really need to have the 67 Hz tone when you are using it.
Burns
On Thu, Mar 19, 2020 at 10:06 AM Bob Hammond via AMSAT-BB < [email protected]> wrote:
I had not experienced that before. There's always something new to learn in ham radio!
thanks John,
Bob W7OTJ
On Thu, Mar 19, 2020 at 6:53 AM John Brier [email protected] wrote:
Very likely. And a lot of people don't realize it turns off after 10min regardless of whether it is being used or not. So it will turn off at
some
point in the pass.
73, John Brier KG4AKV
On Thu, Mar 19, 2020, 09:26 Bob Hammond via AMSAT-BB <[email protected]
wrote:
Hmmm, I wonder if this is what happened: " SO-50 also has a 10 minute timer that must be armed before use. Transmit a 2 second carrier with a
PL
tone of 74.4 to arm the timer."
Bob W7OTJ
On Thu, Mar 19, 2020 at 6:15 AM Bob Hammond [email protected] wrote:
I worked several operators last night on SO-50 at about 0115 UT and then......pffft. I couldn't get into the satellite at all after it
passed
overhead and to the SE.
Does SO-50 shut down if there's too much use?
I was hoping to work the young woman who kept calling me but she was having trouble or getting stepped on or whatever. She'd get out
"W7O...."
and then nothing.
Just curious,
Bob W7OTJ
Sent via [email protected]. 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: https://www.amsat.org/mailman/listinfo/amsat-bb
Sent via [email protected]. 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: https://www.amsat.org/mailman/listinfo/amsat-bb
participants (4)
-
Bob Hammond -
Burns Fisher -
John Brier -
Loren M. Lang