It is usually so, but there are also return channels to the headend
below 54 MHz in some places.
A loose conector or a broken shield might allow it to leak out.
73,
Jose, CO2JA
--
John Taylor escribió:
> Ron, as a semi direct answer to your question, as a general rule
> cable tv frequencies
A couple of things from experience...
First, cable internet service does use HF frequencies. I forget which
direction is down there, but one is.
Second, your power company is a rare find these days. Ten years back it
seems most truimmed the "fixit" guys to cut expenses. I've gone thru it with
Having experienced something like this last year, a fried eggs
sizzling noise I tried many recommendations. BTW, our utilities are
underground. Eliminate your house as the source of the problem by
running your rig from a battery and shut off the house circuit
breakers, everything. Don't overlook
Ron, as a semi direct answer to your question, as a general rule
cable tv frequencies typically are well above hf radio. It is not
impossible for there to be interference, but generally it will be
some other source. One thing to remember with most cable systems is
that the line and trunk amps n
Ron,
One handy trick, the local 'radio inspcetor' for want of a better
name, passed on to me was ... That the closer you get to the noise
source .. the higher in frequency you can pick it up .. I had a wide
band signal taking all of 145 Mhz out ... finally tracked it down,
using a uhf 'tv' a
Hi Ron,
Use a portable HF receiver with a whip antenna and walk around, track
it down by signal strength. This will find the source 90% of the time.
Take 2 ferrites and call me in the morning...
Bonnie VR2/KQ6XA
--- In digitalradio@yahoogroups.com, w4lde <[EMAIL PROTECTED]> wrote:
>I started t
Hi Andy,
Assume you mean DSP "noise reduction"...have never seen any real
effect
of note either way on digital modes...even on HELL. The noise blanker
degrades some WSJT modes but otherwise have seen little impact on
received digital decodes.
On Hell, at least Feld Hell, the AGC seems to mat
sure rips
up the PSK31 freqs..
- Original Message -
From: mac2251
To: digitalradio@yahoogroups.com
Sent: Thursday, July 27, 2006 4:58 PM
Subject: [digitalradio] Re: Noise
--- In digitalradio@yahoogroups.com, "mac2251" <[EMAIL PROTECTED]> wrote:
>
>
--- In digitalradio@yahoogroups.com, "mac2251" <[EMAIL PROTECTED]> wrote:
>
> Anyone know what the signal is on 14071.944 ? It runs about S8 with
> some qsb, and sounds like high speed clicking noise. Hope its not a
> local problem. Mike K9HCK
>
Its not Hell altho I did get a nice almost