|
But ALan'you dont actually need a repeater on HF... the
repeater is already up there- it's called the Ionosphere !!! :-)
What would be more useful, would be say an HF gateway onto a
local repeater etc.
20m wont cover the whole country.... you'll need about 5
frequencies, at least 2 simulatenous at all times, maybe 3....
20m might get you 5% of the country for 4 hours per day right now
here you go ..
see below :
likely coverage at 9 in the morning, a guide... there are a few
assumptions due to the variability of station/terminals.
![]()
coverage at 5pm :
![]()
coverage on only 20m at noon.
![]()
On 30/01/2019 5:40 PM, glen english
wrote:
So
Alan
didnt get a reply to my last cavity question on our separate
thread. any questions ?
The MUF is about 5 MHz max right now, what are you expecting ?
On 30/01/2019 5:29 PM, Alan Beard wrote:
Hi David, Glen and Jeroen,
10m, the RF side concerns me, the ionosphere is just not
co-operating.
The MUF is not lifting up there so the coverage area isn't that
good.
Hence my concentrating on 20m as a max frequency. Using 20m a
whole
country can be covered. And it happens often enough, even daily
for hours.
Thanks Jeroen for the networking thoughts, as Full Duplex from
one site
on HF is realistically not possible.
(I've looked at cavity designs for 100KHz split on 29MHz and you
need about
four cubic metres!!)
As mentioned, I've picked up the Codan 8528 for a Codec2
repeater.
Playing some more with the Hybrid Ring:
http://www.unixservice.com.au/hamradio/repeaters/duplexers/hybridRing/dup6mHR.
html
Alan VK2ZIW
Evil flourishes when good men do nothing.
Consider the Christmas child.
---------------------------------------------------------------------------
Alan Beard Unix Support Technician from 1984 to
today
70 Wedmore Rd. Sun Solaris, AIX, HP/UX, Linux, SCO,
MIPS
Emu Heights N.S.W. 2750 Routers, terminal servers, printers,
terminals etc..
+61 2 47353013 (h) Support Programming, shell scripting,
"C", assembler
0414 353013 (mobile) After uni, electronics tech
_______________________________________________
Freetel-codec2 mailing list
Freetel-codec2@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/freetel-codec2
_______________________________________________
Freetel-codec2 mailing list
Freetel-codec2@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/freetel-codec2
|
_______________________________________________
Freetel-codec2 mailing list
Freetel-codec2@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/freetel-codec2
