[R-390] HP-8640B vs. HP-8654A/8655A/11710B

[n4buq]

Hi Al,

Yes, aligning a set like the R390A where one might have to switch 
between the converter and the straight output because the frequencies 
are +/- the 10mgc point might be a pain and I wondered about that.

As for other questions, I assume the counter must be also switched back 
and forth between the two outputs so there's double the work when going 
above/below the 10mgc point as well.

I do like the smaller footprint, though, as I have a fairly small work area.

Thanks for the reply,
Barry - N4BUQ

On 1/9/2011 2:55 PM, Al Parker wrote:
> Hi Barry,
>     I've had that setup for 4-5 yrs, set up & available in my 
> "upstairs" shack/shop.  I'm afraid I haven't used it as much as I'd 
> like, haven't done much fixing in that spot lately.  IIRC, the "tuning 
> rate" is a bit fast in some instances, but the lock-on feature is 
> really neat.  The small footprint is a big asset.  The overall freq. 
> range is great, I was worried about it's operation in the HF area, but 
> it seems OK.  Not great for doing the alignment of a multi-band HF 
> rcvr with lots of back & forth freq. work, but probably easier at that 
> than a URM-25 ;-)
>     If you can think of any specific questions I'll play with it a bit 
> & see what we learn.
> 73,
>
> Al, W8UT
> www.boatanchors.org
> www.hammarlund.info
>
> "There is nothing -- absolutely nothing -- half so much
> worth doing as simply messing about in boats"
> Ratty, to Mole
>
> On 1/9/2011 3:20 PM, Barry wrote:
>> Anyone on the list have any experience with an HP8654A/8655A/11710B 
>> combination?  The reason I ask is I have an 8654A/8655A and am 
>> thinking of getting the 11710B to get the lower parts of the HF range 
>> and was wondering if I'd be better off with this or getting an 
>> 8640B.  The combo will give me a greater low end (down to 10kc) and 
>> the footprint is a bit smaller, but wondering if there are any other 
>> (dis)advantages.
>>
>> Basically, I'm tired of lugging the 606A up to the bench... :)
>>
>> Thanks,
>> Barry - N4BUQ
>>
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