[K3CAL] replacement antennas for Prince Frederick

[James Tetlow]

No that it matters, but I agree with Chuck’s choice for medium gain antennas. For non commercial they are very high wind rated. May want to consider Shawns recommendation of 6 foot stand-offs for both antennas, and add a top standoff stabilizer bracket for the X300NA.
Guess we will never get the HAM out of buying commercial antennas, just remember the antenna on a commercial tower is the weakest link in the repair chain (like were we are now). 

Sent from my iPad,
Best Regards, 
Jim Tetlow

> On Oct 5, 2018, at 1:59 PM, Chuck Shefflette via K3CAL <k3cal at mailman.qth.net> 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> 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] 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
>> 
>> 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> 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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