[Premium-Rx] MacKay MSR-5050A

[Tom Herman]

Mark,

  My Icom 7300 tunes the same way: I actually like that it changes speed! Slow for fine tuning, and bigger steps as you turn the knob faster.
  This is great for jumping 100 kc on 75M…

73,  -Tom


Sent from my iPhone

> On Jul 14, 2024, at 12:34 PM, Joseph Pistritto via Premium-Rx <premium-rx at mailman.qth.net> wrote:
> 
> I believe that's how its supposed to work.  I had a couple of McKay
> receivers 20 years ago and they had that feature.  It takes some getting
> used to.
>   - jcp
>   N3CKF
> 
>> On Sun, Jul 14, 2024 at 2:50 PM Mark Donaldson via Premium-Rx <
>> premium-rx at mailman.qth.net> wrote:
>> 
>> Looking for info from MacKay MSR-5050A RX owners. I am getting one of
>> these sorted out and notice the tuning dial is acting unusual. The tuning
>> is not nice and linear as you spin the knob in the way it changes the
>> frequency setting. It appears to be speed related, the faster you turn the
>> knob the quicker it changes the frequency. I have seen this same type of
>> speed based tuning in test equipment but the way it works on my MSR-5050A
>> is slow and klunky so not sure it is acting normally or not. I have scoped
>> the outputs of the optical encoder and the subsequent logic and all appears
>> normal.
>> Thanks for any input from anyone who owns or has used one of these
>> receivers.
>> Mark WA1QHQ
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