lmr 600 ?

Discussion in 'Ham Radio Discussions' started by N8OBU, Aug 14, 2019.

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  1. N8OBU

    N8OBU Ham Member QRZ Page

    ok is this 50 ohm or 75 ohm looks like if it was 75 ohm it should say lmr600-75 yhjf0cdjsbryq7dh3kr7.jpg ?
     
  2. KP4SX

    KP4SX XML Subscriber QRZ Page

    Let's see an end view. You usually can tell by centre conductor ratio/size.
     
  3. KK5JY

    KK5JY Premium Subscriber QRZ Page

  4. WA9SVD

    WA9SVD Ham Member QRZ Page

    A 75 Ohm cable would NOT have an LMR-600 number... Just sayin':rolleyes:
     
    K3XR likes this.
  5. WB2WIK

    WB2WIK Platinum Subscriber Platinum Subscriber QRZ Page

    It should be 50 Ohms.

    But you can use calipers or a micrometer to measure the center conductor diameter and compare it to the specification; 75 Ohm cable of the same outside diameter will have a smaller diameter center conductor.
     
  6. N8OBU

    N8OBU Ham Member QRZ Page

  7. N8OBU

    N8OBU Ham Member QRZ Page

    sorry i dont have it in front of me all i got was pictures too i have a chance to pick up a spool of it
    all of the 75 ohm stuff i seen said lmr 600-75 on it not that it would matter for hf anyway
     
  8. KY5U

    KY5U Subscriber QRZ Page

    Loss per 100 feet at 30mHz.

    LMR600 .4 DB
    RG8 .6 DB

    The difference is negligible unless you're antenna run is longer than 300 feet.
     
  9. N8OBU

    N8OBU Ham Member QRZ Page

    i guess ill go pick it up and roll the dice
     

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  10. KP4SX

    KP4SX XML Subscriber QRZ Page

    KA4DPO likes this.

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