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THE AM BULLETIN BOARD => Technical Forum => Topic started by: VE3GZB on October 26, 2009, 11:36:57 AM



Title: 1W of AM?
Post by: VE3GZB on October 26, 2009, 11:36:57 AM
On which band would it carry further under current atmospheric conditions? 40m or 80m?

Reason - until the tubes arrive for the modulator of my 100W Xmitr, I have to make do with a small 1W rig I put together.

73s
geo
VE3GZB


Title: Re: 1W of AM?
Post by: Pete, WA2CWA on October 26, 2009, 02:15:11 PM
Great antenna; either band. On CW and a decent antenna, you can work the world with milliwatts of power on 80 and 40.


Title: Re: 1W of AM?
Post by: VE3GZB on October 27, 2009, 09:37:26 PM
I have a lousy antenna (and no room to improve upon it) so 1 watt isn't cutting it in evenings.

What is the best time for 40m? I ask because by 8pm EST there's an awful lot of noise (80m is much worse here though, barely anything gets through on 80).

Maybe if I can try 40m again during less noisy hours, I might make a contact.

73s
geo
VE3GZB


Title: Re: 1W of AM?
Post by: Ed/KB1HYS on October 27, 2009, 11:03:59 PM
that's double tough. QRPp and a poor antenna = much frustration. 
I'd stick to 40M under those conditions.
you might try announcing a sched transmit time here and seeing who can hear you. If we know to look for a sig there is a chance someone on the board may hear it.



Title: Re: 1W of AM?
Post by: VE3GZB on October 28, 2009, 09:16:16 AM
Ok, I'll try again tonight around 8 pm on 7290, see if I can raise any contacts with just 1 watt.

73s
geo


Title: Re: 1W of AM?
Post by: KX5JT on October 28, 2009, 09:27:47 AM
7.290 Mhz as soon as the sun is about to set till after it rises is wiped out by a Broadcast station.  No way I could pick up a 1 watt signal with such a beast riding on top of it.

Maybe you should consider finding an open frequency below 7.200 and then posting it here.


Title: Re: 1W of AM?
Post by: VE3GZB on October 28, 2009, 07:47:18 PM
I'll fire up the shortwave and see if there's any vacant spots between 7.0 and 7.3, see if I can raise anything (though it's highly doubtful).

73s
geo
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