1. You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
    Dismiss Notice

Crossbanding radios

Discussion in 'Ham Equipment' started by parttimehammer, May 5, 2013.

  1. parttimehammer

    parttimehammer Active Member

    Joined:
    Jun 26, 2011
    Messages:
    112
    Likes Received:
    0
    Hi all,

    I've had my Wouxun KG UV3D for about three years now, and am looking to upgrade to probably a mobile or a base station unit. Something that is 2M/440 with 30 to 50 watts of power. I'm curious if a mobile or base station radio will need to have a dedicated "crossband" function, or if it can be done on any radio? I see Wouxun has a new 920P which has a dedicated crossband ability, but in the reviews I've read, that may be one of its few redeeming features.

    I was under the impression I could ssetup a crossband on my own by selecting a simplex freq to listen to, and then have that be transmitted on the repeater freq from the base station / mobile rig?

    Does anyone have any suggestions for relatively cheap ~$300 mobile or base station? Would one be cheaper than another? I know Kenwood and Yeasu are both popular, but they seem to be more expensive.

    Thanks!


     

  2. hookedon6

    hookedon6 W9WDX Amateur Radio Club Member

    Joined:
    Jun 21, 2008
    Messages:
    1,483
    Likes Received:
    236

    that is correct,.... but,.... give some thought as to proper ID'ing and rig control
     
  3. n8fgb

    n8fgb Well-Known Member

    Joined:
    May 18, 2008
    Messages:
    665
    Likes Received:
    204
    Yes, your crossband radio must be able to ID in both directions. Most have the mistaken believe that all they need to do is id on your your leg to the the repeater. You must either add an ID'er or buy a dualband with one built in.
    Rich
     
    1 person likes this.
  4. parttimehammer

    parttimehammer Active Member

    Joined:
    Jun 26, 2011
    Messages:
    112
    Likes Received:
    0
    So what does the "crossband" function of a radio like the Wouxun actually do then?
     
  5. n8fgb

    n8fgb Well-Known Member

    Joined:
    May 18, 2008
    Messages:
    665
    Likes Received:
    204
    Ok, let's say the local whackers are haveing a desaster drill. One is sent out to BFE. BFE is out of range on his 2m/.7m ht. So he sets up his mobile for xband repeat. The repeater he is trying to hit is on 146.80, he sets the vhf side to xmit on that repeater pair. THEN HE SETS HIS HT TO 444.555( or wHATEVER).when he xmits on his ht on 444.55, his mobile retransmits on the repeaters input of 146.20. when he unkeys and the squelch tail drops, his mobile switches to receive on 146.800 and xmit on 444.55. This allows you to extend your range. But the xband repeater must ID on both 146.20 and 444.55 to be legal.
    Rich
     
    1 person likes this.
  6. hookedon6

    hookedon6 W9WDX Amateur Radio Club Member

    Joined:
    Jun 21, 2008
    Messages:
    1,483
    Likes Received:
    236
    to make a much simplier answer,... it does exactly what a "regular"repeater does,... RX on one freq, and TX on a different freq, at the same time.

    the main difference is that the two freqs are NOT in the same amateur "band"
     
  7. parttimehammer

    parttimehammer Active Member

    Joined:
    Jun 26, 2011
    Messages:
    112
    Likes Received:
    0
    Alright, that was how I understood it. How does one get the xband repeater to ID on both freqs? Is that an automatic function, or is it done manually? Newbie here, help is appreciated
     
  8. parttimehammer

    parttimehammer Active Member

    Joined:
    Jun 26, 2011
    Messages:
    112
    Likes Received:
    0
    So you do not need a Xband radio to Xband then? Any radio can do it? Do you have any favorites for mobile 2M/70cm radios?
     
  9. emclean

    emclean Member

    Joined:
    Apr 15, 2013
    Messages:
    21
    Likes Received:
    2
    the ability to send the ID's is built into the radio or cross band repeator controller. not all the radios have this feature your when I can think of off the top of my head the does is the Kenwood.
    there are probably others that I am not aware of that will do it also
     
  10. parttimehammer

    parttimehammer Active Member

    Joined:
    Jun 26, 2011
    Messages:
    112
    Likes Received:
    0
    Can you rearead that and correct it, specifically the "not all radios and off the top of my head..

    Which is "the kenwood" you are referring to?
     
  11. Quiksilver

    Quiksilver Active Member

    Joined:
    Oct 23, 2006
    Messages:
    385
    Likes Received:
    18
    The Yaesu FT-8800R has cross-band repeat capabilities

    Welcome to Yaesu.com

    [​IMG]
     
  12. parttimehammer

    parttimehammer Active Member

    Joined:
    Jun 26, 2011
    Messages:
    112
    Likes Received:
    0
    Ya, I have been looking at that. It says its on the 430Mhz band though...iirc that does NOT cover the 440 / 70 cm band?

    Question about power..as I am not planning to use this in the card with a cig lighter, can I use a cig lighter to AC power adapter, or do I need to purcahse an AC power supply?
     
  13. emclean

    emclean Member

    Joined:
    Apr 15, 2013
    Messages:
    21
    Likes Received:
    2
    strike your when, and replace with only one.
    the dangers of talk to text and alcohol.

    kenwood tm-v71a
     
  14. parttimehammer

    parttimehammer Active Member

    Joined:
    Jun 26, 2011
    Messages:
    112
    Likes Received:
    0
    Ahh, much better..thanks :)
     
  15. n8fgb

    n8fgb Well-Known Member

    Joined:
    May 18, 2008
    Messages:
    665
    Likes Received:
    204
    kenwood tm-v71a is the only one I know that has the built in ID'er. A friend has the FT8800, it does xband, but no ID'er.
    Rich
     

Share This Page

  • About Us

    The WorldwideDX Radio Forum was originally established in 2001. We pride ourselves on welcoming Radio Hobby enthusiasts of all types, while offering unbiased, informative, and friendly discussion among the members. We are working every day to make sure our community is the best Radio Hobbyist's site.
  • Like us on Facebook

  • Premium VIP Member

    The management works very hard to make sure the community is running the best software, best designs, and all the other bells and whistles. Care to buy us a beer? We'd really appreciate it!

    Donate to us!