[Elecraft] K3 and Heathkit SB-610 monitor scope

[KC2UEE]

Nevermind... I'll have to re-wind the IF coil on the SB-620 in order to match
the IF on the K3.  It may just be easier to find a used LP-PAN instead.

-James K3JPS

KC2UEE wrote:
> 
> 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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> 
> 

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