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| Vintage Amateur and Military Radio Amateur/military receivers and transmitters, morse, and any other related vintage comms equipment. |
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23rd May 2023, 2:57 pm
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#1 |
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Pentode
Join Date: Apr 2007
Location: Sint-eloois-winkel 8880, Belgium.
Posts: 168
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Icom (Inoue) 700R receiver 9MHz antenna coil.
good day,
how can we align this 9mhz trap on antenna input? thanks carlos on6cn |
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23rd May 2023, 3:33 pm
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#2 |
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Moderator
Join Date: Mar 2012
Location: Fife, Scotland, UK.
Posts: 22,874
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Re: icom(inoue) 700r receiver 9mhz antenna coil
Feed in a 9MHz signal from a signal generator, adjust signal generator frequency for strongest response so you're sure it's exactly on the receiver's IF frequency. Use a strong enough signal to be able to hear it.
Then tune the 9MHz trap to minimise the strength of the response. The trap's job is to reduce the strength of any 9MHz signals which would break through into the IF. David
__________________
Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done |
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23rd May 2023, 3:45 pm
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#3 |
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Pentode
Join Date: Apr 2007
Location: Sint-eloois-winkel 8880, Belgium.
Posts: 168
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Re: icom(inoue) 700r receiver 9mhz antenna coil
thanks david, i was going to do the oposite ,max strenght,
carlos on6cn |
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