[Elecraft] Boots for the XG3...
Jack Chomley
vk4jrc at gmail.com
Mon Jun 27 15:56:32 EDT 2011
Remove the beacon mode and the XG-3 becomes useless for T Hunts :-(
Let anybody who wants to play with their XG-3 be responsible for what they do. Given what has been written in this thread, I don't see people rushing off, to build XG-3 amplifiers :-)
We have all learnt something in this discussion, so let's build a bridge.......
and get over it :-)
73, Jack. VK4JRC
Sent from my iPod Touch
On 28/06/2011, at 0:32, "Joe Subich, W4TV" <lists at subich.com> wrote:
>
> *PLEASE DO NOT* move forward with *any* amplifier for the XG-3.
>
> Like John Ragle I have looked at the phase noise from my XG-3 and it
> is completely unsatisfactory for beacon use. At -33 dBm it raises the
> receiver noise floor by more than 20 dB when measured at + 100 KHz on
> 28 MHz and + 250 KHz in 50 MHz. The measured noise floor (MDS) is more
> than -110 dBm and at 10W, the XG-3 would make an excellent jamming
> device.
>
> When used as a beacon at even *ONE WATT* the required path loss would
> need to be around 100 dB for the phase noise to be below the receiver
> noise level and would still need to be 80 dB or more to be below the
> local noise level on a "quiet" band.
>
> If "boots" become common for the XG-3, I would urge Wayne to remove
> the beacon capability from the XG-3.
>
> 73,
>
> ... Joe, W4TV
>
>
>
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