>
>>What's all this about parasitic oscillation, etc, with the SB-220 and do I
>>really need to worry about it?? Any other things I need to ask the current
>>owner if I find one I'm interested in?
>
>Horsepucky.
? ______
>If the amplifier is working, don't mess with it. If it
>ain't broke; don't fix it!
>
? To evaluate parasitic history, measure the resistance of the parasitic
suppressor resistors.
>>
>>Do I need to worry about whether the ALC is compatible with my rig, or do I
>>just throttle back the output power so as to never overdrive the amp? The
>>FT-920 has a menu setting where I can limit max output power to anything
>>between 10 and 100 watts.
>>
>ALC is likely compatible. However, if you set your rigs max output for
>whatever is the max input of the amp, you shouldn't need ALC since that's
>what it does.
>
>>Rich pointed out that since my FT-920 has fast T/R switching, that I *do*
>>need to take the QSK capabilities of the amplifier into consideration. It's
>>my understanding that QSK really only applies to full break-in CW - I
>>generally operate phone and RTTY only so won't be doing a lot of rapid
>>switching betwen tx and rx. So do I really need to worry about QSK or not?
>
>IMHO, I wouldn't worry about it. Some say that with the TX speed of
>modern rigs, you need it so you don't hot switch. However, when you key
>down with SSB you don't generally start talking in a couple of
>milliseconds.
? People who use VOX are talking, Jon. People who use PTT transmit the
sound of pressing the switch.
> Again, I wouldn't worry about it and.......
? What, me worry!
Rich...
R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures
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