[K3CAL] replacement antennas for Prince Frederick

[Chuck Shefflette]

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> 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 <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 at https://www.eham.net/reviews/detail/4203 <https://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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