CQ AM?

[Gemini4]

listening to 40mtrs this morning and i heard someone calling cq cq cq am?
never before have i heard this, and i did have to switched from lsb to am to hear his call, i thought it was
strange for him not to call in the lsb mode.

[26TM944]

There are several people on 40m AM - there is a couple of guys in Wales that appear in the afternoons. There is a 60m net that is AM as well and all the US stuff on 10m that's in that mode around 29.000 +/-.

But if 40m is not packed call on AM towards the upper end - you may be surprised how many come back to you. An oft forgotten mode that sound really nice on well set up equipment.

73

Steve

[Gemini4]

well i actually thought i'd strayed into the radio section as it was high up the band, but after listen for a
few minutes and as i tuned into the right mode it became clearer, got to admit that.
i personally haven't heard it before like that. but thanks for the explanation

[Lumiya]

AM = air mobile, not allowed in the UK but perfectly OK in a lot of other countries, the person in question was probably a G7 who regularly flies across the EU using various country prefixes dependant on who's airspace he's in.

If though it was a reference to mode then please note that before SSB AM was the main mode and is still used. The LSB/USB modes are preferences and not rules.

[Adriano9966]

well i actually thought i'd strayed into the radio section as it was high up the band, but after listen for a
few minutes and as i tuned into the right mode it became clearer, got to admit that.
i personally haven't heard it before like that. but thanks for the explanation

Welcome to the wonderful world of AM on hf .I have worked quite a few AM dx stations over the past couple of days on 29mhz AM but 40m AM is not that uncommon ........try around 7.190 on a Sunday morning
Its becoming progressively more popular due to the amount of people with vintage transceivers and the fact its a little bit easier for experimenters to build AM transceivers

Some of the signals are broadcast quality and there was a guy using 25watts from Boston on 29mhz yesterday..... he was booming into the UK .Other people in the US are using converted CB transceivers especially the old 23 channel type because the convention on AM is 10khz spacing from 29mhz upwards so for eg ch 1 =29010 ch 2 =29020 ch3 =29030 etc .....might be a good use for one of those vintage American base units you can sometimes find on the auction sites over here

[Admiral]

The LSB/USB modes are preferences and not rules.

Telegraphy on AM is not ideal.