Or even easier when you disconnect the antenna does the noise go
down? When you reconnect it does it go up?
If you can hear the difference then the ambient noise + galactic
noise is higher than the noise figure of the RX. Depending on your
location one or other will dominate.
http://www.vk1od.net/fsm/FSAmbientNoise.htm
http://www.vk1od.net/fsm/FSAmbientNoise.pdf
Another possibility is to listen for a signal leaking out of a
computer or a TV at a multiple of 3579 (7148, 14316, 28632).
Or call CQ on 28300. It's only dead cos everyone is listening.
On Sep 6, 2007, at 3:55 PM, N4NT wrote:
> Here's a quick test. Disconnect the antenna from the rig. Turn up
> the gain
> a bit. Now reconnect the antenna. If the noise level increases,
> the rig is
> probably fine.
>
> 73, Mike N4NT
>
> ----- Original Message -----
> From: "john ferro" <foxbat426@hotmail.com>
> To: <tentec@contesting.com>
> Sent: Thursday, September 06, 2007 5:07 PM
> Subject: [TenTec] delta 580 on 10 meters?
>
>
>> hi, just received my first tentec today - a delta 580. not sure
>> what to
>> think yet as it has a totally different feel and sound than the
>> japanese
>> radios - noise floor is definetely lower and signals seem to pop
>> out. its
>> a
>> nice radio, will take some getting use to - the feel is a bit
>> rougher than
>> the japanese radios but then again this radio is approaching 30
>> years old!
>>
>> it seems to be a little insensitive on 10 meters - 10 meter
>> probagation is
>> not great, but i'm not hearing the loud pops and clicks as i scan
>> the 10
>> meter bands. has any other delta owners noticed this? any help
>> would be
>> appreciated. tia, john
>>
>> _________________________________________________________________
>> Discover sweet stuff waiting for you at the Messenger Cafe. Claim
>> your
>> treat today!
>> http://www.cafemessenger.com/info/info_sweetstuff.html?
>> ocid=TXT_TAGHM_SeptHMtagline2
>>
>>
>
>
> ----------------------------------------------------------------------
> ----------
>
>
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>>
>
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--
73 DE N7WIM / G8UDP
Kevin Purcell
kevinpurcell@pobox.com
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