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Ham repeater encode decode question

Discussion in 'General Technical Questions and Answers' started by KD2ANB, Aug 11, 2011.

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  1. KD2ANB

    KD2ANB Ham Member QRZ Page

    I see listings for repeaters containing frequency, PL, +-. How do you know if you use the PL for encode and decode or just one of them? How do you know the answer? Thanks Ron
     
  2. WB2WIK

    WB2WIK Premium Subscriber QRZ Page

    It's always the encode, which you transmit, yourself. The repeater decodes that.

    Some (not all) repeaters also transmit a tone, which is usually the same one they use for access. If so, you'd want to decode that, if you wish to. You don't need to, this is just to keep your squelch from opening with other signals that don't have that tone coding.
     
  3. KD2ANB

    KD2ANB Ham Member QRZ Page

    Someone told me to put the same number in encode and decode. Is this causing a problem with some repeaters? Some do work fine this way. Thanks Ron

     
  4. AB9RU

    AB9RU Ham Member QRZ Page

    This will only cause a problem on repeaters that do not TX the PL tone, you will get into the repeater but not be able to hear it. The trouble will be on your end it will not cause any problems for the repeater if you use the decode also
     
  5. W5RB

    W5RB Guest

    As others have said , most folks use encode only . The club repeater here does TX a tone , but generally the only users who set up to decode are those with fairly high base antennas , who are bothered by a repeater on the same channel pair about 100 miles from here .
     
  6. KD2ANB

    KD2ANB Ham Member QRZ Page

    Sounds like I'm better to remove all the Decodes and see the difference with stations a couldn't get to come back. Ron

     
  7. K9STH

    K9STH Ham Member QRZ Page

    There are a relatively few repeaters that the output CTCSS tone is different from the input tone.

    As for decoding: All signals, regardless of tone, are going to be received when the receiver is in the "standard squelch" (no tone) mode. When in the decode mode only signals with that particular tone will open the squelch although the signal will still be received by the unit. You just won't "hear" them!

    Glen, K9STH
     
  8. WB2WIK

    WB2WIK Premium Subscriber QRZ Page

    I'd only use "decode" on my receiver on those frequencies where there's another repeater on the same frequency and it drives me nuts.

    If you don't find that happening, there's no reason to program or use "decodes" at all.
     
  9. K0RGR

    K0RGR Premium Subscriber QRZ Page

    Around here we sometimes use it as a way of alerting people to SKYWARN events. One of our repeaters was set up to transmit a special PL tone if there was a SKYWARN callup. This worked well, but they've been using a simplex frequency instead lately, so that people don't get alerted whenever the repeater IDs. Some of our super secret ARES frequencies also employ tone squelch, so we won't hear people trying to jam us.
     
  10. N4CR

    N4CR XML Subscriber QRZ Page

    Another thing that some repeaters do is only put a tone on the output if there is a tone on the input.

    This way, if you set decode, you don't have to listen to the repeater announce itself every 10 minutes or chime the top of the hour, etc. Nice if you trust the repeater to be up and really only want to hear what people say.
     
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