Callsign
Results 1 to 6 of 6

Thread: ICOM IC 707 HF Transceiver

ad: L-HROutlet
ad: l-assoc
ad: l-WarrenG
ad: l-Waters
ad: l-tentec
ad: l-innov
ad: l-gcopper
ad: l-rl
  1. #1
    Join Date
    Feb 2012
    Location
    Gwalior, Madhya Pradesh, India
    Posts
    4

    Default ICOM IC 707 HF Transceiver

    I have Icom IC 707 HF Transceiver which looks like
    ic707.jpg




    It was not in use for quite a long time. Now, when I brought the equipment into use again, I am facing some problem, which seems to be stubborn.
    When I switch on the rig, and the squelch is turned on, no signals are received; but there is a continous loud tone coming out through speaker.
    What I predict is dat the rig is unable to receive the RF signals and some other internal signal is being generated which is heard through speaker.
    I want some help on it, if someone could suggest me a way to bring it to operation again..


    DE VU2LOL
    73s

  2. #2

    Default

    In storage for "long time" -- always, always, the first thing to do is open 'er up and use Dexit or equivalent cleaner/lube spray on all controls, switches, to include any rotary switch contacts (BUT NEVER use on any AC power switches!!) and also hand tighten all circuit board hold down screws you can find, as often they are also ground points.

    Corrosion of switch, control and relay contacts, grounds, etc. can cause these kind of symptoms and it is imperative to do the above before attempting anything else as just that can often restore proper operation and in many cases even return circuits to calibration, or close to it. Corrosion and dry contacts can insert some pretty high resistances into circuits. Cleanliness, next to Godliness...


    73

  3. #3

    Default

    Quote Originally Posted by VU2LOL View Post
    I have Icom IC 707 HF Transceiver which looks like
    ic707.jpg




    It was not in use for quite a long time. Now, when I brought the equipment into use again, I am facing some problem, which seems to be stubborn.
    When I switch on the rig, and the squelch is turned on, no signals are received; but there is a continous loud tone coming out through speaker.
    What I predict is dat the rig is unable to receive the RF signals and some other internal signal is being generated which is heard through speaker.
    I want some help on it, if someone could suggest me a way to bring it to operation again..


    DE VU2LOL
    73s
    I don't recall much about that rig (I've heard of it, and that's about all) but from your description it sounds like it's actually creating a CW "sidetone," like it's switched to the CW mode and believes it is being keyed.

    Does it do this in "all" modes?
    What if soy milk is just regular milk introducing itself in Spanish?

  4. #4
    Join Date
    Feb 2012
    Location
    Gwalior, Madhya Pradesh, India
    Posts
    4

    Default

    Tnx KE3WD..
    This sounds helpful.
    n I will definitely try it out.
    Tnx agn..
    73s

  5. #5
    Join Date
    Feb 2012
    Location
    Gwalior, Madhya Pradesh, India
    Posts
    4

    Default

    WB2WIK..
    Yes the rig is producing the same tone in all modes.
    and yes the fact told by you might be the possible case.

  6. #6
    Join Date
    Apr 2001
    Location
    Staunton, Va
    Posts
    631

    Default

    uh oh, hope it's had a 50 ohm load on it, or it just "thinks" it's being keyed. (no rf out)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •