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Reviews For: ProAudio Engineering PAE-Kx22

Category: QRP Accessories

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Review Summary For : ProAudio Engineering PAE-Kx22
Reviews: 1MSRP: $74.90 heatsink only, with left
Description:
In response to many requests from our customers, we are
proud to announce the release of the Kx22 heatsink for
the Elecraft™ KX2! As we did with the Kx31 and Kx32
heatsinks for the Elecraft™ KX3, the Kx22 is designed
using thermal modeling and offers the maximum cooling by
natural convection. Given the extreme portability
designed into the KX2, our main goal was to maintain the
small size and light weight of the KX2 while offering
improved thermal performance in transmit, and we believe
we succeeded on all fronts. The width of the petite KX22
heatsink is only 0.4″ (10 mm), which is less than the
KX2’s BNC jack protrudes so it still fits in the LowePro
bags offered by Elecraft. The weight is only 1.36 oz
(38.7 g) so there is little weight penalty when packing
the rig for a hike.

The Kx22 is a billet-aluminum piece black-anodized to
match and compliment the appearance of the rig. It offers
the extended transmit time desired by KX2 digital mode
operators of up to 250% at full output.

We have designed the Kx22 in conjunction with GEMS
Products, and it integrates perfectly with the GEMS KX2
end plate and cover accessories. If you already have the
GEMS KX2 SideKX, then you need only order the Kx22. If
you do not, we have made a special deal with GEMS
Products to offer the matching left SideKX panel as shown
in the picture above. The Kx22 is also 100% compatible
with the GEMS KX2 Mobile Mount.

Designed using thermal modeling software for best
performance.
Ratio of base mass to fin area optimized for the duty
cycle of digital modes.
Rounded cross-section for no-snag use in fabric cases,
and no sharp corners to cut or damage adjacent objects.
When mounted on Elecraft™ KX2 along with GemsProducts™
SideKX plates and cover, the combo will fit in a standard
LowePro CS40 or CS60 case.
Custom-color black anodized instead of powder-coated for
superior thermal performance.
Radiusing compliments the design of the GemsProducts™
SideKX.
Custom fin spacing matches KX2 screw placement for a
clean appearance, it does not look like a stock heatsink
profile modified to fit.
Optimum compromise for most all operators between stock
appearance and enhanced transmit time.
The Kx32 is supplied with an installation manual and a
packet of heat-transfer grease.
Each heatsink is visually checked after machining, and
again after anodizing to make sure there are no defects
before being shipped to you.
Product is in production
More Info: http://https://proaudioeng.com/pae-kx22-heatsink-elecraft-kx2/
# last 180 days Avg. Rating last 180 days Total reviews Avg. overall rating
0015
W0FK Rating: 2018-06-02
Beat the heat! Time Owned: 0 to 3 months.
I installed the heat sink on my KX2. It's well made, and looks like a factory product. Putting the itty bitty hardware on was challenging for me, as I have large hands and there's little room to work with in the KX2.

Before installing the heat sink, all I could manage when running FT8 digital transmissions was Elecraft's suggested 5 watt maximum. I tried 10 watts, but the radio quickly cut back to 5 watts due to the heat and thermal shutdown to save the finals.

I set the radio for 10 watts and put the radio into tune mode using WSJT-X in FT8 mode, and started a timer. The radio ran key down 10 watts (9.46 w output into a dummy load) for 5 minutes, 38 seconds in tune mode before it shut itself off. Here are my temp results:

Start -- 24°C
1 minute -- 36°C
2 minutes -- 40°C
3 minutes -- 43°C
4 minutes -- 45°C
5 minutes -- 47°C
5 min 38 sec -- 48°C – rig shut down
transmit

The heat sink was only slightly warm to the touch.

This product just works as intended. It's a great addition to my KX2 and a great product.

73

Lou, W0FK