[Boatanchors] Hammarlund HQ-170A vs. National NC-300

[Garey Barrell]

Todd -

No, actually the 300 was supposed to address the SSB market.  It had a 
"separate linear detector" for SSB and CW that "allows SSB with AVC ON" 
and would "... not block with RF Gain full open".   The SSB band width 
was 3.5 kHz at -6 and 12 kHz at -60 dB!  The 303 improved the SSB 
operation by  narrowing the IF b/w to 2.0 kHz / 9 kHz and adding a 
vernier (friction) drive knob on the Main Tuning knob, along with a 
Q-Multiplier for a 60 dB Notch.  Both the vernier drive and crystal 
controlled first IF LO were published as "upgrades" by hams to the 300, 
and included in the updated 303.

73, Garey - K4OAH
Glen Allen, VA



Todd, KA1KAQ wrote:
> On Tue, Jul 15, 2008 at 2:05 PM, Carl <km1h at jeremy.mv.com> wrote:
>   
>> I agree with Garey.
>>
>> The NC-300 failed at its intended SSB goal but it was great on AM
>>     
>
> I was under the impression that the 300 was the older AM/CW based rig,
> while the 303 was the updated SSB version? Never owned either so that
> could be a lot of horse manure, and second hand at that.
>
>   
>> The HQ-170 failed at all goals, especially the audio. And now you have the
>> potential mess of silver mica disease in the IF cans.
>>     
>
> Never liked the 'new' HQs that followed after the big box single
> conversion rigs ending with the 150. "Improved" with double conversion
> or ? Gimme the 120X or an old SP anytime.
>
> ~ Todd,  KA1KAQ
>
>