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

Palomar 400 Elite.. had to do it..

Discussion in 'CB and Export Equipment and Accessories' started by CB590, Sep 1, 2019.

  1. CB590

    CB590 W9WDX Member

    Joined:
    Jun 29, 2016
    Messages:
    994
    Likes Received:
    499
    Saw this come up recently up on one of my YTube subscriptions.. has 4*1446 in it.



    I figured for my low drive Ranger 296 it may be a good match up with that and my A99 to get into the 'sandpile'.. price was decent for a 4 pill..

    Video shows it slamming like 450w on high but that was with modded C29.. and you know it's splattering..

    I figure medium setting and just under 300w should do for my SSB needs. Ranger does about 15w PEP max on SSB.. my voice is like 8-11w on swings..

    I know the amp has the 1446 pills rated at 5w drive max..

    Should be here Tuesday.. and I'm off that day.. :). Now if conditions would pick back up for the NE we'd be GTG.


    Screenshot_20190828-095947.png
     
    S&W357 likes this.

  2. 9C1Driver

    9C1Driver Sr. Member

    Joined:
    Aug 13, 2008
    Messages:
    3,165
    Likes Received:
    888
    S&W357 and CB590 like this.
  3. Highway Man

    Highway Man Active Member

    Joined:
    May 18, 2019
    Messages:
    130
    Likes Received:
    92
    i saw that.
    i bought the 600 new back in the day and it was a fine box.
    hope you enjoy.
    seller seems like a straight shooter
     
    CB590 likes this.
  4. CB590

    CB590 W9WDX Member

    Joined:
    Jun 29, 2016
    Messages:
    994
    Likes Received:
    499
    Anyone know max bypass wattage with the unit off??

    Also does this unit have to have constant power to it in the bypass mode like my RM203 does??

    Only running 10-20w PEP max with the unit when off, figured I'd ask..

    Here's a spec sheet power curve on the SD1446..

    Screenshot_20190902-084750.png
     
  5. Highway Man

    Highway Man Active Member

    Joined:
    May 18, 2019
    Messages:
    130
    Likes Received:
    92
    I'm no expert on amps by any means but running that radio through that box in the off position shouldn't cause any problems.
     
  6. nomadradio

    nomadradio Analog Retentive

    Joined:
    Apr 3, 2005
    Messages:
    2,895
    Likes Received:
    2,739
    Max bypass wattage?

    Same as max drive wattage. The keying circuit is always tapped into the "standby" side of the amplifier. Excess power in "bypass" mode with the power turned off usually toasts the keying circuit.

    Worst case, might damage contact points in the preamp relay. It's pretty small. Your bypass wattage goes through the standby side of this relay, as well as the main relay.

    73
     
  7. nomadradio

    nomadradio Analog Retentive

    Joined:
    Apr 3, 2005
    Messages:
    2,895
    Likes Received:
    2,739
    If tapping on the top of the preamp relay causes your receiver signal to make crunchy noises, or causes it to cut in and out, this means the standby side of that relay has gone bad.

    If it has a top cover that can be popped off, you can fix this problem by bypassing it completely. Normally, you would do this by removing the pc board from the amplifier (ugh!), removing the preamp relay from the pc board, and installing a wire jumper in its place.

    This method is a lot more efficient if the relay has that removable top cover.

    [​IMG]

    73
     
    Robalo likes this.
  8. CB590

    CB590 W9WDX Member

    Joined:
    Jun 29, 2016
    Messages:
    994
    Likes Received:
    499

    Thanks. No issues yet.

    Just a general inquiry if anyone knew the 400 Elite Bypass amount..
     
  9. 9C1Driver

    9C1Driver Sr. Member

    Joined:
    Aug 13, 2008
    Messages:
    3,165
    Likes Received:
    888
    It's a cb amp, there really is no spec sheet that gives you that information. It comes down to common sense, a radio that does 10-20 watts PEP should be fine. Trying to run a 50-60 watt Export radio through that amp would probably not be good.
     
    CB590 likes this.
  10. CB590

    CB590 W9WDX Member

    Joined:
    Jun 29, 2016
    Messages:
    994
    Likes Received:
    499
    Heres one I just ran across for like $330 online..

    Hopefully mine coming in today is as clean looking..

    Screenshot_20190903-084012~2.png
     
  11. CB590

    CB590 W9WDX Member

    Joined:
    Jun 29, 2016
    Messages:
    994
    Likes Received:
    499
    This is mine.. was mess is that up near relay?

    IMG_20190903_110541347~2.jpg

    IMG_20190903_111040516.jpg
     
  12. nomadradio

    nomadradio Analog Retentive

    Joined:
    Apr 3, 2005
    Messages:
    2,895
    Likes Received:
    2,739
    Keying circuit. Senses the RF carrier from your radio and closes the transmit relay.

    The factory circuit was simpler. This one is a field modification.

    Won't win any beauty contests, but if it ain't broke don't fix it.

    73
     
    Shadetree Mechanic likes this.
  13. CB590

    CB590 W9WDX Member

    Joined:
    Jun 29, 2016
    Messages:
    994
    Likes Received:
    499
    I hear you. Wonder what a tech that knows what there doing to go thru it and square it up..

    There isn't none up here in NY state.. so I have to mail it.. which isn't an issue.

    I'm seeing 300w swing on SSB on medium when pushing my AT6666 on low power to it.. like 16-18w pep (as tuned).. I'm happy with that number.. my voice is doing between 180-260w on my meter. My AM carrier is like 60w with little swing upward (but I don't have a pep meter) so I am guessing like 240w+ on AM.. only a tiny hair of relay chatter on SSB when I stop talking (aka breathing) for a second.. as long as I'm talking continuously it stays quiet..
     
    #13 CB590, Sep 4, 2019
    Last edited: Sep 4, 2019
  14. 999

    999 Well-Known Member

    Joined:
    Apr 3, 2011
    Messages:
    189
    Likes Received:
    143
    I always cringe when I see wire nuts in an application that is not house wiring.
     
    9C1Driver and Shadetree Mechanic like this.
  15. CB590

    CB590 W9WDX Member

    Joined:
    Jun 29, 2016
    Messages:
    994
    Likes Received:
    499
    Should have seen the 2 on the back and taped up to boot when I got it.. was terrible.

    Plan is to solder the 10 guage wire (that I added as shown) inside the amp. Not sure if my 30w iron will melt the solder properly to do it though. I may send out to have it looked at and that done as well.

    IMG_20190903_125534434.jpg
     

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!