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Finally!!!!!

Discussion in 'SSB and Ham Operators' started by Brian D, Oct 9, 2017. Add this thread to a FAQ

  1. Brian D

    Brian D Moderator

    Joined Feb 17, 2006
    3,915 posts, 601 likes
    Lancer 27PS
    US MCB Camp Pendleton, Ca KF6BL
    If you remember from last year I built a box for my SSB? If not, here is an image of that project.

    IMG_20160424_120955.jpg

    Well, it wasn't long after this work of art that my SSB failed. So much for that. I decided instead of a Kenwood TS50, I would get an Icom IC707. It is very similar to the Icom IC718 in fit, form, and almost function. The radio has fewer bells and whistles which is fine with me.

    So I start to build a new box for that radio. Took forever due to lack of motivation, but I finally finished it. I still have to wire it for power, but the hard work is done.

    I present to you, my new "comm" station...

    IMG_0334.jpg

    I have added power switches to ensure I did not leave something on to drain the battery. The three switches are not labeled yet but the will be (L-R) SSB - VHF - GPS. The small meter under the VHF (far left) is power/current. The GPS is used for the VHF's DSC.

    Now, to finish this up, put it in the boat, and get the antenna project done. Motivation has returned.
     


    Will Gilmore and kloudie1 like this.
  2. jssailem

    jssailem

    Joined Oct 22, 2014
    5,579 posts, 1,884 likes
    CAL 35 Cruiser
    US Salem, Moored Port Everett WA
    What about the fancy wood sim trim?
     


  3. Brian D

    Brian D Moderator

    Joined Feb 17, 2006
    3,915 posts, 601 likes
    Lancer 27PS
    US MCB Camp Pendleton, Ca KF6BL
    Replaced it with the fancy white sim vinyl. The wood trim made the boat seem dark. LOL
     


  4. jssailem

    jssailem

    Joined Oct 22, 2014
    5,579 posts, 1,884 likes
    CAL 35 Cruiser
    US Salem, Moored Port Everett WA
    That's only because you stuck it in front of the sunny port. You need to hide it in a corner. Then the sun can shine in and reflect off the white of the wood trimmed cabinet.:biggrin:
     


  5. jviss

    jviss

    Joined Feb 5, 2004
    2,597 posts, 258 likes
    Tartan 3800
    US Westport, MA
    Nice job! Looks great.
     


  6. Brian D

    Brian D Moderator

    Joined Feb 17, 2006
    3,915 posts, 601 likes
    Lancer 27PS
    US MCB Camp Pendleton, Ca KF6BL
    Power on test!

    IMG_0340sm.jpg

    Everything seems to be OK. Didn't test the Tx function of either radio. I'll do that on the boat. However, I do have one issue that is bugging me. I do not have an accurate shunt and it is showing 300ma lower than what my clamp on amp meter is reading. I am sure there is a way to fix that so I will have to do a lot of research. But for now, looks like this project can be put to bed.
     


  7. Rick D

    Rick D

    Joined Jun 14, 2008
    6,534 posts, 157 likes
    Hunter Legend 40.5
    US Long Beach, Shoreline Marina, CA
    Good for you! Finished off the waterproof box for the tuner yesterday and hauled everything to the boat with hopes of an install tomorrow.
     


    Brian D likes this.
  8. Brian D

    Brian D Moderator

    Joined Feb 17, 2006
    3,915 posts, 601 likes
    Lancer 27PS
    US MCB Camp Pendleton, Ca KF6BL
    Whoot! Sounds good @Rick D. I have to test using dipoles when I get to the boat. I still need to run coax and tuner control cables aft. I have all the parts for an external 35.5' (plus GTO-15 cable) install. Now that "winter is coming" I can work without dying of heat. LOL

    My research is showing me that I will need to nip some of the shunt resistor to bring the current value on the meter up. Have to be careful not to nip too much. I don't think I have a spare one. I thought I bought 2 but does not look that way. We'll see.
     


    Rick D likes this.
  9. Hartley

    Hartley

    Joined May 13, 2013
    29 posts, 1 likes
    Tayana 48DS
    Atsa US Phoenix, AZ
    If you haven't adjusted it yet, use a file to <slowly> adjust that shunt. I've had similar problems with Chinese shunts - you're lucky you aren't trying to make it less resistance :)
     


    Brian D likes this.
  10. Brian D

    Brian D Moderator

    Joined Feb 17, 2006
    3,915 posts, 601 likes
    Lancer 27PS
    US MCB Camp Pendleton, Ca KF6BL
    Hi @Hartley! Yeah, I saw a Youtube video of a guy who had the same issue. Not quite ready to apply a hacksaw yet, but the thought has occurred that that could be a simple fix. One day. But seriously, an exact current indication is not all that important. It is just something cool to look at. LOL
     


  11. MitchK

    MitchK

    Joined Sep 22, 2017
    76 posts, 11 likes
    Capital Yachts Newport 28
    US Burbank, WA
    Brian,
    Nice looking install. I inherited my fathers IC-707 a long time ago. You are correct, it is the predecessor of the IC-718. Good solid radio. I keep it as a backup to my IC-756 pro. I could not tell from your pictures, but is the back enclosed? The 707 is a 100 watt class radio, and needs plenty of opening for the cooling fan. The other thing I may question, is the current rating of your switches? Most of the normal DC rated switches are only rated for about 15A. The radio pulls an honest 20A at full output on peaks (SSB). If I remember, standby (receive) is about 2A. It's easy enough to install a 12v relay that is switched to carry the high current of the 707. Again, a very nice install. If I ever get my boat back to salt water, I will have to install a SSB rig, For now I am inland, so it is not necessary.

    Mitch
     


  12. Brian D

    Brian D Moderator

    Joined Feb 17, 2006
    3,915 posts, 601 likes
    Lancer 27PS
    US MCB Camp Pendleton, Ca KF6BL
    Hey Mitch...

    The box is only three sided: bottom, right side, front. But it will rest against one of the bulkheads so that leave the top open and the very back.

    The switches are rated at 30amps. I also made sure that the used to feed each switch/radio matched the original. So the 707 is being feed 14AWG from the distribution block, into the switch, the 14AWG to the radio. I was very keen on making sure that each path was capable of support the current requirements.

    Tomorrow I will take a photo of the back so you can see the rats nest.
     


  13. MitchK

    MitchK

    Joined Sep 22, 2017
    76 posts, 11 likes
    Capital Yachts Newport 28
    US Burbank, WA
    I figured you had the ventilation issue sorted out as well as the switch ratings. 14ga is a little light for 20A, but the runs are very short, and the loads are intermittent, so it should work well.

    Along with the Icom radios I listed, I also have a IC706MK2G which is my camping radio, and an Alinco SR8T which I picked up for a spare. It was only 6 months old when I got it used at about 1/2 price of new. The Alinco is the radio I am thinking of putting in the boat eventually. Though the 706 would work well too. I have been looking at some of the surplus Icom marine radios. I really liked the higher output power. Especially when working with a compromise antenna. I still have a few years of working to go before I can start cruising. As it is now, I am on an inland river about 300 miles upriver from the Pacific Ocean, so the HF is not a necessity at this time. Again, a really nice install.

    Mitch
     


  14. Brian D

    Brian D Moderator

    Joined Feb 17, 2006
    3,915 posts, 601 likes
    Lancer 27PS
    US MCB Camp Pendleton, Ca KF6BL
    Yeah, they are very short runs. I had also only planned on using at max 50 watts. When using RMSExpress I would use 25 watts or less. I went with 14 because that was the standard power cable for the radio. It was also rated at 32 amps, but not as a power transmission. Regardless, it works and there is no overheating. But you know, it could be 12AWG. LOL

    A photo as promised. Please excuse the lens distortion.

    IMG_0365a.jpg
     


    Rick D likes this.

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