[amsat-bb] New operator on uplink power
P. Suryono Adisoemarta
yono_adisoemarta at yahoo.com
Wed Mar 11 02:09:36 UTC 2020
This abuse on uplink power is getting bad on IO-86 satellite it made an operator dominating the whole pass and prevents other stations with portable setup to qso with others (IO-86 satellite was specifically designed for emergency communication in mind utilizing a simple setup of HT and a hand-held directional antenna).
On the next satellite that AMSAT-ID is working on, also equatorial one, we are going to add RSSI detector, and the over powered station will be replaced with a tone on the downlink.
73 de Yono YD0NXXAMSAT-ID Technical Team On Tuesday, March 10, 2020, 07:53:38 PM GMT+7, Michael Walker via AMSAT-BB <amsat-bb at amsat.org> wrote:
I want to share something for those new operators. Old farts can jump in
with 'I told you so!' LOL
I know this has been stressed before, but I wanted to share an uplink power
experience.
I am using a 7 Element Quad on UHF. There are times that I have to dial
down the UHF uplink power on the IC-9700 to 1% and even then I think that
is too much signal. Case in point was this morning working CAS-4A.
For those IC-9700 operators, I highly suggest that you keep the Multi-Knob
focussed on RF power and adjust as required. This will of course limit
your ability to use the RIT since it is hard to use both at the same time.
It is unfortunate that I can't seem to use the waterfall on the IC-9700 to
also see the beacon in the panadapter. It isn't a 'width' issue but a gain
issue. I already have my REF set to +12db.
I'm always open to suggestions.
Mike va3mw
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