[Kenwood] TS-530S low RX on 40m

Thu May 14 17:57:16 EDT 2020

Steve
Yes, forgot to mention I wound up cleaning the bandswitch quite a few times 
with deox-it. Theres some improvement
but it appears theres still issues.
I ran into a video regarding "peaking" the coils on the RF board that I 
wonder if its worth a try.
This radio was owned by a a heavy smoker, so when I cleaned the band switch, 
and powered up the radio,
some sizzling and sparking came out monentarily, as I guess the niccotine 
coating blended with the deox-it
and took longer to dry than I expected. Luckily no noticable damage took 
place as I immediately removed power
and let it dry fully before further tests.
--
Steve Hearns
KA2PTE
----- Original Message ----- 
From: "Steve Sutfin" <stephoto at mind.net>
To: "Steve H" <teknoskillz at comcast.net>
Cc: <kenwood at mailman.qth.net>
Sent: Thursday, May 14, 2020 4:52 PM
Subject: Re: [Kenwood] TS-530S low RX on 40m
> Hi Steve,
> One thing that comes to mind about hybrids is that besides having 
> mechanical switches and buttons ( my FT-901 has a bunch ) they still use 
> the old fashioned band switch. I clean and 'work' the switches/ buttons 
> frequently as maintenance but If your issue is not on all bands cleaning 
> the band switch contacts is the first place I would start.
> 73,
> Steve k7dna
>> On May 14, 2020, at 1:32 PM, Steve H wrote:
>>> I have a condition where rx on this band seems very low. Sort of 
>> present on 20m at times too.
>>>> The S meter barely moves at all, theres no noise level but I can hear 
>> stations.
>> The drive knob kind of behaves like a really wide tuner where the 
>> signals get higher
>> as you move it fully ccw.
>>>> When I put the cal signal on, I can hear it but theres no s meter level 
>> at
>> all.
>>>> Other bands seem to have noise levels and the drive / tune function
>> resonates properly, but overall
>> I think the rx gain seems sort of lacking "robust" is the best way to
>> describe it.
>>>> I posted about this in a Kenwood hybrid group and I think they said its 
>> a common problem in most of some of the
>> hybrids, but cannot recall what they said actually is going on causing 
>> it. I remember they said the cal signal ought to be
>> alot stronger than what I reported.
>>>> I caught alof of flack from them for not "reading the manuals" first 
>> before posting for help, then somehow what I said as a reply was
>> studied by the mods, and deemed as "threatening" so I left, and thought 
>> I would try here.
>>>> --
>> Steve Hearns
>> KA2PTE
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