[amsat-bb] High Power and Rudeness

[Hasan al-Basri]

Linear birds have more room but are being compromised significantly by poor
receiving setups (low sensitivity) and transmitting with too much power, to
be sure. (see my other post on this issue).

An additional problem that is causing just as much trouble on the linear
birds is *failing to use doppler correction properly*. People come on and
slide all over the passband and can't find themselves. Once they do, they
cannot maintain a stable frequency relationship with respect to others on
the birds.

As a result, they occupy multiple frequencies during the pass, covering up
existing qsos that are practicing proper doppler discipline. *Basically, we
are going through a period of transition where new operators have no idea
what they are doing because they came from a single channel FM environment
where doppler was practically non-existent, and making oneself as "full
quieting" as possible has been rewarded with "yet another grid". *

The FM birds make 20 meter DX'ing seem like a picnic of social workers,
especially on the weekends.

These FM birds encouraged and basically trained people into some horrible
operating practices and at the same time failed to educate those same
people how much different linear bird operation needs to be.

We need more Elmers. We need to provide feedback. When we observe these
poor practices, we need to:

1. Look up their email (QRZ if available does nicely)
2. Write them a helpful note that explains: (in a straightforward, yet
polite fashion)

a. What the problem is.
b. Why it's problem
c. How to cure it
d. What the consequences are for the other ops and eventually for
themselves if they continue to operate in these objectionable ways.

I do this a few times a week and include a link to an MP4 recording of the
offending operation, so they can see and hear what their operating
practices are doing t everyone else.

Let's lend a helping hand by making the extra effort to educate our fellow
sat ops, so that this wonderful resource of linear birds is not turned into
the wasteland that the FM birds have become (on weekends).

Who knows, it might help the FM birds as well.

73, N0AN
Hasan


On Sun, Mar 15, 2020, 4:58 PM Zach Metzinger via AMSAT-BB <
amsat-bb at amsat.org> wrote:

> On 03/15/20 16:48, Zach Metzinger via AMSAT-BB wrote:
> > The single-channel, repeater-in-the-sky model was always destined for
> > this sort of abuse (or simple ignorance). I've seen this happen on a
> > local repeater, with a footprint of less than 50 miles. Why wouldn't it
> > be expected on something with a footprint 100-1000 times as large?
>
> (*) slight correction -- Earth has a radius of ~3963 miles, so my
> "100-1000 times" statement was a little superlative. Let's go with
> 10-100 times. ;-)
>
> --- Zach
> N0ZGO
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