Jeff DePolo wrote:
>>Ok, I'll bite-what's AIP? I have a G707, and don't remember seeing
>>anything labeled like that.
>
>
> Kenwood's AIP = "Advanced Intercept Point". It reduces the sensitivity of
> the receiver which has the effect of reducing receiver-induced intermod by
> lowering the TOIP/compression point. Although I thought it might just be an
> attenuator that is switched in, Bob said that what it's really doing is
> reducing the gain of the first RF stage (I guess there's an RF amplifier
> before the first mixer).
>
> I didn't get a chance to re-measure my V7A with the AIP turned on yet.
I don't remember my G707 having that. Maybe I just missed it...my F6 has
it, but it's not labeled AIP, just attenuator. And I never use it, drops
sensitivity too much, and there just isn't enough intermod normally to
matter...normally.
>
>>Course, intermod isn't what it used to be either. Through the
>>late 70's,
>>80's, and early 90's, you couldn't drive through downtown Cleveland
>>without hearing intermod on 2M or UHF. With ANY radio. Not a MastrII,
>>not a Micor. NOTHING was immune to all those 1/3KW
>>IMTS/paging transmitters.
>
>
> You'd think it should be getting BETTER with all of the VHF/UHF paging
> activity having dropped off in many areas, IMTS being dead (or in some
> cases, the channels re-used for other purposes), etc., but that doesn't seem
> to be the case. Go figure.
Yeah-that was actually my point. Compared to what it was 10-15 years
ago, intermod is almost non-existant around here, for the reasons you
mentioned.
--
Jim Barbour
WD8CHL
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