[TowerTalk] Heliax Connectors

[Roger (K8RI)]

Steve Maki wrote:
> My problem with N connectors is that they are fragile mechanically. 
> They're OK if installed carefully and always mated with their female 
> counterpart by someone who cares (hey, this is getting poetic), but it's 
>   very easy for pickle-heads to spread the female center pin (come on) 
> thereby ruining it.
>
> For HF I'll take UHF connectors any day, and for higher, give me DINs 
> please.
>
> BTW I thought we already had 2010's version of this discussion, and we 
> weren't due for another for 8 months or so...
>   

And not all that long ago<:-))

73

Roger (K8RI)
> Steve K8LX
>
> Ryan Jairam wrote:
>   
>> Unless someone is running at least 3x the legal limit, I doubt any
>> amateur running legal amateur power levels will have any problem with
>> either an N connector or PL259. Andrew N connectors can actually
>> handle up to 10kW (peak) according to the spec sheets.
>>
>> High SWR may be a different issue but I try to avoid high SWR here.
>> The only antennas I have that routinely operate under high SWR are fed
>> with 450 ohm line.
>>
>> Anyway, my whole reason for using N was availability and cost.
>> Performance is a non issue because under HF amateur applications at
>> legal limit or less into a 50 ohm load there won't be any difference.
>>
>> Ryan, N2RJ
>>
>> On Tue, Apr 20, 2010 at 7:13 PM, Roger (K8RI) <K8RI-on-TowerTalk at tm.net> wrote:
>>     
>>> Ryan Jairam wrote:
>>>       
>>>> I would just get N connectors and adapters and use that instead.
>>>> Practically nobody else but ham and CB use UHF connectors anymore.
>>>>
>>>>         
>>> To me the UHF are preferable to the N for HF if you run power and a high
>>> SWR.  I look at N as a mistake.  If I didn't have so may connectors
>>> already installed I'd go with the 7-16 DIN which might even be cheaper
>>> now days.
>>>
>>> I've never noted any difference up through 2-meters although others
>>> have. What we did different? I have no idea.
>>>
>>> 73
>>>
>>> Roger (K8RI)
>>>       
>>>> Vy 73
>>>> Ryan N2RJ
>>>>
>>>> On 4/20/10, john at kk9a.com <john at kk9a.com> wrote:
>>>>
>>>>         
>>>>> These connectors are no longer made and most dealers seem to be out of them.
>>>>> Here is one dealer that has four of them and is asking $1500/each
>>>>> http://antennasystems.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=L44P&Category_Code=LDF4con
>>>>> .
>>>>> If anyone does have any L44P or L44U connectors that they would like to get
>>>>> rid of for a more reasonable price, please send me a direct email
>>>>>
>>>>> John  john at kk9a.com
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> To: "Tower and HF antenna construction topics." <towertalk at contesting.com>
>>>>> Subject: Re: [TowerTalk] Heliax Connectors
>>>>> From: Steve Maki <lists at oakcom.org>
>>>>> Reply-to: "Tower and HF antenna construction topics."
>>>>> <towertalk at contesting.com>
>>>>> Date: Mon, 19 Apr 2010 14:09:51 -0400
>>>>> List-post: <towertalk at contesting.com">mailto:towertalk at contesting.com>
>>>>>
>>>>> Steve Bagley wrote:
>>>>>
>>>>>           
>>>>>> Ladies and Gentlemen:
>>>>>> I have read so much information concerning what connectors to use for 1/2"
>>>>>> heliax, I am thoroughly confused.
>>>>>>
>>>>>> I need to splice some heliax together for a long run, and terminate at the
>>>>>> tower and shack.
>>>>>>
>>>>>> My arrestors are a standard SO-239 connector.
>>>>>>
>>>>>> I would prefer to use the connectors designed for the heliax vs standard
>>>>>> 259's.
>>>>>>
>>>>>> Anyone have the appropriate part numbers and any concise input?  Really
>>>>>> appreciate it!
>>>>>>
>>>>>>             
>>>>> Assuming you're talking about Andrew LDF4, the Andrew part numbers are:
>>>>>
>>>>> L44Z - splice
>>>>> L44P - UHF male
>>>>> L44U - UHF female
>>>>>
>>>>> I'm not sure any of these are actually made anymore, but can be found in
>>>>> stock at some dealers, and commonly at fleamarkets. Also RF Industries
>>>>> (RFI) makes a UHF male for LDF4 if I'm not mistaken.
>>>>>
>>>>> 73,
>>>>>
>>>>> --
>>>>> Steve Maki
>>>>>
>>>>> _______________________________________________
>>>>>
>>>>>
>>>>>
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>>>>>
>>>>>
>>>>>           
>>> _______________________________________________
>>>
>>>
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>>>       
>>
>>     
>
>