[K3CAL] replacement antennas for Prince Frederick

Fri Oct 5 17:18:30 EDT 2018

I am not an antenna expert so therefore I suggest we follow Chuck's 
recommendations and buy a new antenna instead of someone else's junk off 
of e-bay. We have wasted enough time and money trying to fix a problem 
by going the cheap-charlie route. I am not trying to hurt anyones 
feelings but lets get the job done.

73, Don, KR3A

On 10/5/2018 1:59 PM, Chuck Shefflette via K3CAL wrote:
> Dave,
>
> I hope this isn’t a duplicate, it looks like the first one I sent, 
> didn’t go anywhere. I’ll throw my $0.02 in here, we should go with the 
> Diamond, purchased from a dealer such as HRO, not from eBay.
>
> For the repeater, I would go with the X300NA, for the links the X50NA. 
> The X300NA is rated for up to 112 mph winds, the X50NA for up to 135 
> mph winds. Short of a major hurricane, they should both work well even 
> though they aren’t really intended for use on a commercial tower. They 
> also both have “N” connectors (the NA int the part number), which are 
> preferred over UHF connectors.
>
> The X300NA is listed at $139.95 at HRO. The X50NA is listed at $94.95 
> at HRO but is on sale at the moment for $89.95.
>
> Chuck - AA3CS
> /------/
> /“Insanity is doing the same thing over and over again and expecting 
> different results.” -- Albert Einstein/
>
>> On 05 Oct 2018, at 13:13, David Weaver <W3PQS at comcast.net 
>> <mailto:W3PQS at comcast.net>> wrote:
>>
>> Thanks for all the input. I appreciated.
>> Looks like to me the Tram antenna should not be used in either works 
>> or it doesn't. I know we have a local, ham that point up. He just 
>> notified me that it's not working. It needs to be replaced.
>> However, the diamond antenna has a little bit better reputation.
>> I need for Cara members to take a look and find an antenna they would 
>> like to install it. It's up to the executive board. I will put up. 
>> Whatever you say. Please don't take too long. Let's keep this project 
>> moving
>> Dave W3PQS
>> *From:*k3cal-bounces at mailman.qth.net 
>> <mailto:k3cal-bounces at mailman.qth.net>[mailto:k3cal-bounces at mailman.qth.net]*On 
>> Behalf Of*Shawn Donley
>> *Sent:*Friday, October 5, 2018 11:55 AM
>> *To:*Calvert Amateur Radio Association - K3CAL
>> *Subject:*Re: [K3CAL] replacement antennas for Prince Frederick
>>
>> Dave,
>>
>> Take a look athttps://www.eham.net/reviews/detail/4203
>>
>> The 1481 seems to either work well or sucks badly.  No idea why the 
>> spread of experiences.
>>
>> Perhaps a Diamond X300NA instead?
>>
>> In any case, longer 6-foot standoff's might help.
>>
>> Shawn
>>
>>> On October 5, 2018 at 11:26 AM David Weaver <W3PQS at comcast.net 
>>> <mailto:W3PQS at comcast.net>> wrote:
>>>
>>> *Hello, Cara members*
>>>
>>> *At last night meeting, you asked me what type of antenna we should 
>>> use. I found these 2 on eBay.*
>>>
>>> *One is 17 foot long and the other is 5.6 Feet*
>>>
>>> **
>>>
>>> *Tram 1481 Dual Band 2M/70cm 144-148 & 440-450 MHz Base/Repeater 
>>> Antenna 17'*
>>>
>>>   * 11.7dbd gain UHF430 MHz - 450 MHz
>>>   * 8.3dbd gain VHF 144MHz -148MHz
>>>
>>> **
>>>
>>> *Diamond X50A VHF/UHF Dual Band 2Meter/440 Amateur Ham Radio Base 
>>> Antenna*
>>>
>>> **
>>>
>>> Band:
>>>
>>> 	
>>>
>>> 2m/70cm
>>>
>>> Gain (dB):
>>>
>>> 	
>>>
>>> 4.5/7.2
>>>
>>> *Please let me know what you think?*
>>>
>>> *Also, there's a lot of coordination that needs take place to 
>>> replace the antennas.*
>>>
>>> *If you would like for me to move forward with the coordination of 
>>> cable and antennas. Please let me know*
>>>
>>> *We will need to get an estimate from a company to climb the tower 
>>> and install the antennas.*
>>>
>>> *David Weaver W3PQS*
>>>
>>> **
>>>
>>
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>>
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>
>
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