On 2019-03-23 1:57 PM, Herbert Schoenbohm wrote:
My tower is a Rohn 45 90 footer and there must be some way of
detuning it via the skirt adjustment means to make it non-resonant at
1825 kHz This is similar to electrical towers being detuned near a
direction AM station so their pattern is FCC comp
On 3/23/2019 10:57 AM, Herbert Schoenbohm wrote:
My tower is a Rohn 45 90 footer and there must be some way of detuning it
via the skirt adjustment means to make it non-resonant at 1825 kHz This is
similar to electrical towers being detuned near a direction AM station so
their pattern is FCC
My tower is a Rohn 45 90 footer and there must be some way of detuning it
via the skirt adjustment means to make it non-resonant at 1825 kHz This is
similar to electrical towers being detuned near a direction AM station so
their pattern is FCC compliant. In some cases, the power companies used
s
The best way to isolate the TX antenna for receiving is to have it float above
ground. The worst means is grounding the antenna. The grounded antenna will
re-radiate any noise it captures rendering your RX antenna useless. It only
takes a few PF to ground to make a TX antenna your principal noi
Yes, shorting the cage to ground across a capacitor, I think. Switching
between capacitor to the ground and to the transmit capacitor...
73, Mirko, S57AD
V V sob., 23. mar. 2019 ob 01:58 je oseba Herbert Schoenbohm <
herbert.schoenb...@gmail.com> napisala:
> A nice Jennings 24V vacuum relay arr
A nice Jennings 24V vacuum relay arrived in the mail today but I am not
sure the best way to detune my cage fed tower on 160. Would shorting the
cage to ground be the way?
Herb, KV4FZ
On Fri, Mar 22, 2019 at 3:59 PM FZ Bruce wrote:
> RF parts was out of the VHC1 12V vacuum relays.. Tried the VH
RF parts was out of the VHC1 12V vacuum relays.. Tried the VHC3- 12V
vacuum relay and found it to be an excellent replacement.. When first
received tested pulling with a 9 volt battery and it was fast. Very
dependable with 12 volts DC.
73Bruce
https://www.qsl.net/k1fz/beverage_antenna.html
