JF,
>As you would know frequency changes to suit time of day broadcast quality.
>
Yes, that is why most SW broadcasters have multiple frequencies because
skip distances are different at different times and target areas.
>
I have an American made transistor It seems to automatically keep the
signal at constant volume;
>
That is called AGC, automatic gain control,
otherwise strong signals would produce high audio output.

Synthesized is the name given to the way the local oscillator in the
radio is put onto the frequency to receive the required frequency.
In the case of your receiver it has memory chips that hold the
required frequency for each channel button. The computer chip uses it
to generate the local oscillator needed for that frequency.
>
In any case Radio Australia shortwave is nowhere to be heard.
>
Yes it is very sad. If for some reason the internet falls over there
will be nothing left to resurrect.
>
Australia is not out there and China and other countries are moving in.
Its seems like the ABC is doing this on purpose to drag Australia down.
>
Yes and China does not spare the watts either, their signals are
always very strong.
I don't think anyone has any information on listeners.
I do not think the Greens have even heard about short wave radio and
it would be considered too much of CO2 generation. After all most SW
broadcast transmitters run between 50KW and 500KW.

If the future predictors and sustainability become become the standard
the internet will closed because it uses much more power than SW transmitters.
Here endeth the first lesson

Bazz,

Thank you for your informative comment. It sounds like you may have been one of the technicians operating Radio Australia Shortwave.

Under the circumstances of Australia now losing presence and respect and business, do you think it may be possible for Radio Australia shortwave radio broadcasting to be reinstated?

Bazz,

Thank you for your informative comment. It sounds like you may have been one of the technicians operating Radio Australia Shortwave.

Under the circumstances of Ausyralua now losing presnce and business do you think it may be possible for Radio Australia shortwave radio broadcasting to be reinstated?

No, I have never had anything to do with Radio Australia or any other
broadcast station.
Radio Australia was at Lyndhurst in Victoria and Darwin.
There were other SW transmitters operated by the ABC for regional
services but I think they have also gone. Must have a look and see
if they are there. They used to carry the normal program as on the
city station to a large extent. I drove to Darwin and back via
Sth Aus and had all day coverage on SW.

I do not think RA will be revived sad to say.
After all our pollies do not understand that if you take 4000 Mwatts
of the grid, it might cause some difficulties, so anything as complex
as SW broadcasting will really try their tiny minds.
Just had a spin around 5 to 7 Mhz which was where I used to hear
those ABC stations but nothing at all. I will have a listen later
and see if there is any on air.

There are sites that have SW DX news so try googling them and you
will find any infor that is available.

Well JF, I just had a sweep from 5 Mhz to 15 Mhz and there are very
few broadcast stations. A few foreign language stations.
Years ago I used to listen to 9750 the BBC and 15070 BBC most days
but they are not there today and I have not heard them for sometime.
If I remember correctly I had those frequencies stacked in the memory
channels of the radio in the car, it was not the normal car radio,
and I listened to them on the way home from work.

So, no HF Broadcasting these days, although the sunspot count is very low.
No doubt someone will blame it on global warming, hi !

Wait, there is more.

Money is given to Foxtel but with the other hand is taken away from the ABC.

I think leftie editorial control may be at the heart of the problem. Or could it be Malcolm Turnbull links to broadcasting via his lawyer background with Kerry Packer's PBL?

In any case the ensuing turmoil has pulled down the Australian Flag previously held high by Radio Australia shortwave public broadcasting.

http://www.smh.com.au/business/companies/the-challenge-facing-the-abc-time-for-a-clear-channel-20180511-p4zett.html