Hi Rick
Well I have not heard about it either but the info I got from the company
that makes the amplifier told me this.
There is no shunt static discharge at the moment. The antenna is 27.5 meter
vertical with a loading coil at the base of the antenna and it is DC
grounded.
73
Rune
ons. 13.
Hi Fredd et al,
I used to have the NCC-1 and a few years ago I bought the NCC-2 which is
working vfb for me. It is sturdy and allows me to phase a few different
antennas to get rid of local and even more distant noise.
GL
Len SM7BIC
-Ursprungligt meddelande-
Från: Topband
För Jim Brown
On 1/13/2021 11:23 AM, Fred Moeves wrote:
I keep looking at DXE NCC-2 and thinking that might magically help my
situation.
Anyone have good stories about the NCC-2?
I've had good results with the NCC-1, essentially the same circuitry
with switching added to make the main antenna one of the
I think the topography here 4 square is out.
It's pretty steep on either side of my creek.
So I think that leaves Beverages and loops.
I think I will try to realign my NE Beverage to get 580' out of it.
Since that would be 80 degrees beamwidth I might be able to move it more
north but still
On 1/13/2021 9:32 AM, Jim Borowski wrote:
Also eliminate Ground loops as well.
There is no such thing as a "ground loop." Failure to do proper
grounding and bonding is epidemic.
73, Jim K9YC
_
Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
I think the word Oscillation was the wrong word to use. Usually it is noticable
and happens on 160m. It is more like RF feeding back on a loop causing a high
SWR and you tune that out and the amp circuit putting out more power than
needed and amp starts to over heat. Bigger heat sinks may
On 1/13/2021 3:13 AM, Rune Øye wrote:
I have been told that Oscillation in Narrow tuned antennas can occur and
make damage to your equipment, radio or amplifier. It is really the first
time I have heard about this potential issue. On 160m band, I use a
Can you give us more details on this
Rune,
"Out of the blue" output transistor failures have been happening in SS PA-s.
There are lots of discussions of the possible reasons on the various forums,
ranging form overdrive, thermal issues to transients in the output circuits,
etc. Nobody knows for sure yet.
One possible source is
Hi all and HNY.
I have been told that Oscillation in Narrow tuned antennas can occur and
make damage to your equipment, radio or amplifier. It is really the first
time I have heard about this potential issue. On 160m band, I use a
Titanex HD with a matching unit, in fact it is 27.5 meter
