Thanks Bob, The PSU seems perhaps heavier then than the inbult SPE unit
then. The SPE total weight is 24 lbs.
I would think the better IMD3 performance would be at the higher voltage
in the SPE, at the expense of efficiency.
I imagine the KPA1500 has a temperature display, what FT8 session RF out
power level can it sustain, without exceeding 50 deg C if you know ?
Thankyou
Adrian Fewster
On 12/7/21 2:11 pm, Bob Wilson, N6TV wrote:
On Sun, Jul 11, 2021 at 7:22 PM Adrian <vk4tux@gmail.com
<mailto:vk4tux@gmail.com>> wrote:
Bob, what are the TX IMD3 specs on the KPA1500 if you know please?
They are listed in the ARRL Product Review:
http://www.arrl.org/files/file/protected/Group/Members/ProductReview/PROD_REV_0319.pdf
<http://www.arrl.org/files/file/protected/Group/Members/ProductReview/PROD_REV_0319.pdf>
Spurious and harmonic suppression: HF, 62 dB typical, 48 dB worst
case (24.9 MHz); 50 MHz, 71 dB.
Third-order intermodulation distortion (IMD): 3rd/5th/7th/9th
order products, (dB below PEP at full output): 14 MHz,
–30/–40/–48/–58 dB
The KPA1500 has a transformer supply ?
It's a Switching Power Supply in a separate box. Weighs 17 lbs.
73,
Bob, N6TV
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|