[TowerTalk] LMR600 male DIN

[Grant Saviers]

For my Tessco account, I'm seeing the same price $3.11 for RFS LC78-50JA-A7

I found AVA5-50 for the same price from another supplier a while ago.  
Every "super deal" price I've seen on RFS at Tessco was "no stock".

Digging a bit into the specs

DC resistance  ohms/K-ft total                            weight % vs 
LDF5    conductivity % vs LDF5

AVA5   center .41   shield .34        .75   (0.30 
lb/ft)                     91                         91
RFS LC78 center .47   shield  .47   .94   (0.28 
lb/ft)                    85                         72
LDF5-50A  center .32   shield .36     .68  (0.33 
lb/ft)                   100                      100

Which is contrary to experience that AVA shield is much thinner than 
LDF5.  So what is different about the shield copper?

And if losses are resistance driven at HF, how can the loss per 100 ft 
at 10MHz be essentially the same for all three and the lowest resistance 
cable have the highest loss?

loss db/100ft @ 10MHz

AVA5-50               0.105
LCF78-50JA-A7    0.105
LDF5-50A             0.112

One wonders......

Grant KZ1W


On 9/4/2016 5:16 AM, StellarCAT wrote:
> I'm signed in at Tessco - I can't find this specific part number and 
> the lowest price I'm seeing is $3.11 for the 50JAA7 (list of $4.75).
>
> Gary
> K9RX
>
>
> -----Original Message----- From: Bryan Fields
> Sent: Saturday, September 3, 2016 11:53 PM
> To: towertalk at contesting.com
> Subject: Re: [TowerTalk] LMR600 male DIN
>
> On 9/3/16 10:45 PM, Bob K6UJ wrote:
>> What do you think of this stuff ?  It sells for about one third of 7/8
>> Heliax and very close in loss.
>>
>> http://www.rfsworld.com/websearchecat/datasheets/?q=LCF78-50JA-A0
>
> It's basically identical to LDF heliax.  It's about 1.80/ft from 
> Tessco now.
> RFS brand connectors are $30 each.  I used it to build out a repeater 
> site a
> few months back, it's great stuff.
>
> It's the reason the value of used heliax needs to be re-evaluated.
>