Source of a good phasing cable?

[brandon7861]

I looked on amazon and saw 18' and 12' cables. They clearly don't understand how they work.

I want something accurately cut to 90 electrical degrees at 27MHz and made of 75 ohm cable. If it comes in 70.7ohm I'd prefer that because I could tune each antenna to 50ohm instead of 56ohm but I will take either as long as the length is right..

 

[Captain Kilowatt]

Make your own. Easy peasy.

 

[brandon7861]

I was hoping someone had a pre-made one because I don't want to try to solder aluminum shield. I figured it would be quicker looking for a quality phasing cable than searching out 75ohm coax with a copper shield. If I have to make one, I will just build a box with a couple LC networks so I can use 50ohm cable..

 

[unit_399]

I was hoping someone had a pre-made one because I don't want to try to solder aluminum shield.

Whenever I have to use 75 ohm coax with aluminum shield, I always secure it with LOCTITE Ablestik CE 3103 conductive epoxy. Inexpensive and available at Home Depot.
- J.J. 399

https://next.henkel-adhesives.com/us/en/products/industrial-adhesives/central-pdp.html/loctite-ablestik-ce-3103wlv/88805IB.html

 

[Crawdad]

Plenty of other 75ohm coaxes out there besides RG6. Stuff with shields that solder.

 

[nomadradio]

RG59 has copper braid. That's what we have used. Haven't made a co-phase harness in decades. Found that a half-wave long 50-ohm jumper between the radio and the harness made amplifiers behave better. SWR meter didn't reveal why. And affordable analyzers were still years in the future.

73

 

[Captain Kilowatt]

Plenty of other 75ohm coaxes out there besides RG6. Stuff with shields that solder.

RG-59 if you want the small stuff but I prefer RG-11. It is an RG-8 type cable, same size basically, but 75 ohms.

 

[Captain Kilowatt]

I was hoping someone had a pre-made one because I don't want to try to solder aluminum shield. I figured it would be quicker looking for a quality phasing cable than searching out 75ohm coax with a copper shield. If I have to make one, I will just build a box with a couple LC networks so I can use 50ohm cable..

Use RG-11. It is the same size as RG-8 but is 75 ohms and has a solderable shield.