[Elecraft] K3 and Heathkit SB-610 monitor scope

[KC2UEE]

Hi Bob,

I've found a nice SB-620.  Do you know if it will work with the K3 and it's
IF out as a spectrum analyzer?

73 de James K3JPS


Robert Naumann wrote:
> 
> 
> The SB610 is a transmit monitor scope. It is not a bandscope. The model
> SB620 was a bandscope.
> 
> The SB610 is still very useful for monitoring your transmit signal through
> an amplifier for proper modulation and trapezoidal waveforms etc. Good
> luck finding parts.
> 
> 73,
> 
> Bob W5OV
> ex- "One of the Hams at Heath"
> 
> 
> 
>> James I am not sure you will get value for money from an SB-610, they
>> date from the days when a decent oscilloscope was big and expensive.
>> These days 'scopes with the capabilities to monitor your peaks are
>> general purpose test items and don't cost much. The K3 also has a two
>> tone test oscillator built in. The IF output of the K3 is quite low
>> level and is centred on 8.215 MHz, not the final IF of 15 KHz.
>>
>> For my money, I would look for a general purpose oscilloscope for the
>> shack and an SDR receiver ranging from the low cost Softrock IF, to
>> LP-PAN or the more expensive general coverage ones. These will give you
>> a panoramic view of the band and be far more useful than an SB-610, even
>> if it could be converted to work at the K3 IF output.
>>
>> 73 Dave, G4AON
>> K3/100 #80, Perseus SDR
>> http://www.astromag.co.uk/k3/
>> ----------------------------------
>> I'm not very familiar with using monitor scopes, so please bear with me.
>> I'm interested in picking up a used Heathkit SB-610 in order to monitor
>> my
>> sideband wave forms. From what I understand, all I'd need to do is
>> connect
>> the antenna out of the K3 to the SB-610, and the antenna input to the
>> SB-610.
>>
>> Can anyone with experience with this scope know if it will work well with
>> the K3? I think this SB-610 has a 455KHz coil installed as well. I do
>> believe they can be switched out for a 4-6KHz coil for monitoring a
>> receiver's final IF. I don't recall what the final IF of the K3 is
>> operating at.
>>
>> 73 de James K3JPS
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> 
> 
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