[ARC5] Minimum test equipment

[J. Forster]

Errrr....  The HP 8601A is a Sweep Generator, not a Signal Generator. It
is designed to be the source for the 8407A Vector NMetwork Analyzer. IMP
it's a nice little generator.

However, stability of all Sweep Generators in poor. The only exception is
the step-sweep synthesizers.

-John

===============


> All -
>
> Ditto !  Very stable instruments - they make the HP8601A's look bad,  I
> have 2 HP8601A's in working condition and the the (LM-13's and the
> BC-221-AK's) 2 each are by far more stable even on the low end.   The
> HP's drift all over the place;  I set the FREQ MTRS to calibrate
> setting, can hardly get the HP8601A's output signal to lock on to the
> cal signals and Zero beat.
>
> Hutch
>
>
> On 2/21/2012 11:19 AM, Kenneth G. Gordon wrote:
>> As John said, a BC-221 and a good VOM are a good starting point.
>>
>> I have two BC-221-AKs and use them routinely to align receivers by
>> setting
>> one at the top end and one at the bottom end of the band I am aligning.
>>
>> One interesting thing about the BC-221: they were designed over 70 years
>> ago, and are STILL valuable and useful to this day. There are always
>> several
>> for sale on eBay at prices ranging from the totally ridiculously high to
>> amazingly low. The three versions which include modulation are the most
>> useful of the many models. These include (if I remember correctly) the
>> AK,
>> AL, and AM models.
>>
>> ALL LMs include modulation, and those usually sell on eBay for even less
>> than the '221 since many sellers don't know what they are.
>>
>> Yet, IMHO, a decent scope is possibly the very best tool any electronic
>> shop
>> could have.
>>
>> And for alignment of receivers, a sweep generator is indispensible.
>>
>> Ken W7EKB
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