[600MRG] Good transmission line for low price

[Brian Pease]

Copper clad aluminum wire is a disaster outdoors. I had some for a rotor 
control line where water got in at the top and corroded whole sections 
to powder in a couple of years. If I had done a proper drip loop at the 
top and sealed the ends, it might have lasted longer. This was "direct 
burial" outdoor loudspeaker cable with a tough outer jacket in addition 
to the insulation on each wire.
On 5/24/2023 9:50 AM, mstangelo at comcast.net wrote:
> Dave,
>
> That price seemed low for copper wire. I checked the specs and the strands are copper clad aluminum. I am curious how it withstands the elements because I've had corrosion issues with similar wire.
>
> Mike N2MS
>
>> On 05/24/2023 8:09 AM EDT Dave Riley via 600MRG <600mrg at mailman.qth.net> wrote:
>>
>>
>> Back in the day we were all warned not to use ac line cord for antenna feeds.
>>   Now with modern plastics/pvc maybe things have changed??
>> I started off by using Belden 72 ohm KW twin lead for receive hoping to see what made the Dallas Lankford " quiet antennas " work ..
>> Things were looking good till I ran out of the Belden twin lead and they don't make it any more..
>> Decided to try " Install Link " from Amazon for low money.. 38 bux for 250 feet..
>>   https://www.amazon.com/gp/product/B0BYCR9P8J/ref=ewc_pr_img_1?smid=A1J9XHX48UC47C&psc=1
>> Worked great quality for DC interconnects so it was time to measure Z and see if this line would be good for remote receive antennas..
>> Good news for 630m and lower...
>>
>> 100 ft. of this terminated line measures 104 ohms Z, good..
>> Freq Loss
>> 11mhz - 5.57db
>>   4mhz. - 3.27db
>>   1.8mhz. - 2.39db
>>   475kc. - .69db
>>   136kc. - .18db
>>   17.2kc. - .16db
>> Of course a remote LNA at the antenna makes the loss go away..
>> Am using this now for verticals and loops..
>>
>> The possibilities are endless... Phased arrays??
>>
>> 73s de Dave @ W1FRV / W1NMF WSPR
>>
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