Or any other multiband antennas in a multi-transmitter situation.
73,
Don W3FPR
On 6/14/2019 1:36 PM, Bob McGraw K4TAX wrote:
Neither should G5RV antennas.
Bob, K4TAX
Sent from my iPhone
On Jun 14, 2019, at 10:44 AM, donov...@starpower.net wrote:
oops... I meant to say:
Inverted V dipole and verticals are NOT allowed at W3AO
73
Frank
W3LPL
----- Original Message -----
From: donov...@starpower.net
To: elecraft@mailman.qth.net
Sent: Friday, June 14, 2019 3:40:43 PM
Subject: Re: [Elecraft] FIELD DAY PREP
We use a dozen K3 transceivers at W3AO, we've never had a K3
failure despite running as many as four K3s on the same band
(CW SSB Digital and GOTA). The four K3s on each band do not
interfere with each other either.
Our secrets to success:
- same band antennas are horizontally polarized and oriented exactly
end-to-end. Inverted V dipole and verticals are allowed. 100 feet
of tip-to-tip spacing appears to be adequate, although we use much more.
- We install W3NQN bandpass filters on every K3 to avoid overload
from signals from nearby antennas for other bands.
Its not widely known that K3 transceivers have built in bandpass
filters. As far as I'm aware their performance characteristics have
never been published, hence our preference to also also use external
bandpass filters.
73
Frank
W3LPL
----- Original Message -----
From: "Bob McGraw K4TAX" <rmcg...@blomand.net>
To: elecraft@mailman.qth.net
Sent: Friday, June 14, 2019 3:24:01 PM
Subject: Re: [Elecraft] FIELD DAY PREP
With stations running 100 watts or less and reasonable antenna
separation, I've found no reason for a Receiver Input Protector.
Although, it might be a good idea to circumvent a "screw up" by an
operator. I've seen some mighty strange things done by knowledgeable
hams at Field Day.
73
Bob, K4TAX
On 6/14/2019 10:07 AM, KENT TRIMBLE wrote:
Have any of you used Ameritron's "Receiver Input Protector" model
TRP-150? I find no reviews on eHam.
73,
Kent K9ZTV
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