[Elecraft] FIELD DAY PREP

[Don Wilhelm]

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, donovanf at starpower.net wrote:
>>
>> oops... I meant to say:
>>
>>
>> Inverted V dipole and verticals are NOT allowed at W3AO
>>
>> 73
>> Frank
>> W3LPL
>>
>> ----- Original Message -----
>>
>> From: donovanf at starpower.net
>> To: elecraft at 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" <rmcgraw at blomand.net>
>> To: elecraft at 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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> 
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