I happen to have a less than ideal ham shack/lab and antenna setup.
The shack/lab is second floor in the rear.
The main antenna is an inverted L 30ft straight back from the shack.
There are about 50 pounds of type 31 ferrite in the house suppressing
_everything_ to the point that I cannot tel
On Thu, Apr 18, 2013 at 1:35 AM, Iain Young wrote:
> ...
> Two problems here. One the patch panel is the other side of the house
> from the lab (so running a dedicated piece of coax is out without
> taking up the floors..), and Two, 10MHz over unshielded CAT6 is not
> good practice, to say the le
On Thu, Apr 18, 2013 at 4:23 AM, Iain Young wrote:
>
> Oh I know it can handle it, I was trying to avoid a nice 10MHz signal
> on an unshielded conductor smack on the Amateur Radio 30m band :) It's
> more RF here than Time/Frequency, and if I can avoid clashes, so much
> the better...
A transfo
On 04/18/2013 09:23 AM, Hal Murray wrote:
i...@g7iii.net said:
Oh I know it can handle it, I was trying to avoid a nice 10MHz signal on an
unshielded conductor smack on the Amateur Radio 30m band :) It's more RF
here than Time/Frequency, and if I can avoid clashes, so much the better...
Has any
i...@g7iii.net said:
> Oh I know it can handle it, I was trying to avoid a nice 10MHz signal on an
> unshielded conductor smack on the Amateur Radio 30m band :) It's more RF
> here than Time/Frequency, and if I can avoid clashes, so much the better...
Has anybody measured the radiation from vario
Re the use of Baluns to send 10 Mhz signals over twisted pair cable, I
currently do this at home and it works well. I also have no issues engaging
in occasional HF amateur radio activity (including using the 10 Mhz band) at
home. I also have routed the signal and power leads for the time nuts
10 MHz over unshielded twisted pair works very well. That's what Ethernet
10BaseT is after all. Either scrounge some pulse com transformers out of
ancient Ethernet cards or use a pair of 'video baluns' which are sold into the
closed circuit television industry for transporting video over cat5 ca
Hi
By the time you drop to 1 pps, transport the 1 pps, and lock a 10 MHz back up
to it, you have done a lot of stuff. The work and the cost of the bits and
pieces will add up. If the 10811 is the ultimate source, it's not going to be
at GPSDO performance levels. A hundred dollar or so GPSDO wou
On 18/04/13 11:50, Hal Murray wrote:
10MHz over unshielded CAT6 is not good practice, to say the least, and
simply not going to happen.
What do you mean by "not good practice"?
Gigabit Ethernet works over CAT5. I think it's 125 megabaud, 5 level, 2 bits
per baud. Whatever, it's way over 1
> I'd rather not drill a hole and run a cable
You can feed the cable through a window or door and across the grass long
enough to make an occasional measurement to tell you how accurate and stable
the local oscillator is.
> 10MHz over unshielded CAT6 is not good practice, to say the least, an
I think that the best move is to get a second GPSDO for the lab.
On Thu, Apr 18, 2013 at 10:35 AM, Iain Young wrote:
> Hi Everyone,
>
> Recently, I have acquired a HP Frequency Counter and Signal Genny, and
> have set up a small "lab" in the house. This is great, but I'd like to
> hook it into
Hi Everyone,
Recently, I have acquired a HP Frequency Counter and Signal Genny, and
have set up a small "lab" in the house. This is great, but I'd like to
hook it into my 3816A, which is 70 ft away in an outhouse, along with
all my radio gear, to at least compare it to the 10811 in the Frequency
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