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Reviews For: Cooler KX TM Heatsink by VE7FMN for Elecraft KX3

Category: QRP Accessories

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Review Summary For : Cooler KX TM Heatsink by VE7FMN for Elecraft KX3
Reviews: 75MSRP: Model dependant
Description:
These hand crafted replacement heatsinks are designed to allow full power use of the KX3. High duty cycle users including digital operators will benefit from reduced incidents of transmitter power roll back due to overheating. Additionally the heatsinks can contribute to overall longer service life from their radios due to reduced internal operating temperatures. Available in two models and in two finishes. Complete information is available on the website.
Product is in production
More Info: http://www.ve7fmn.ca
# last 180 days Avg. Rating last 180 days Total reviews Avg. overall rating
00755
N6KD Rating: 2020-11-10
Quality product, eliminated heat issues. Time Owned: 0 to 3 months.
I had heat issues with my KX3 during extended rag chewing on 6M FM, even when running 5W. The radio got quite hot and I got an on screen warning. The Cooler KX heat sink eliminated the problem. Very thorough instructions.
OE6MAD Rating: 2020-08-14
Great product, great service Time Owned: 0 to 3 months.
Received my CoolerKX last week and I absolutely love it. Makes the KX3 look even better and the performance boost is definitely noticable. Outstanding design - thanks Fred.

I've placed my order already in April, but Fred and me had considerable issues getting the delivery through to Europe. Due to the COVID situation and bad luck with the delivery services it took us ~3.5 months to complete the purchase. Despite all those challenges and many hiccups Fred stayed in contact and did all he could to keep things going. Very professional - this is what I call great customer service.

Looking forward to upcoming operations with my upgraded KX3.
W1GO Rating: 2017-12-10
Cooler KX Plus Time Owned: N.A.
First off, excellent responsiveness and overall service offered by Fred. Secondly, product has great form, fit and function. The product is what Fred says it is. Initial testing demonstrates outstanding results that will be quantified, but seeing (operating) is believing. Your KX3 is a significant investment. Now is not the time to save a few bucks buy purchasing a poorly constructed product from a nameless Asian supplier on eBay.
K7AAT Rating: 2017-11-07
Superb Quality Time Owned: more than 12 months.
I've had my heatsink for at least the past two and a half years. The unit just reeks of quality and its function is superb. I have never seen better quality product, support, or attention to minute detail that Fred provides.
VE7JBT Rating: 2017-11-07
Well designed so it works great Time Owned: more than 12 months.
I don't live very far from Fred VE7FMN, so I had the added benefit of meeting him when I dropped my radio off at his place of business (that's a grand name for his home), while I was driving though, on the way to someplace else - I told him I'd be back in a few days on my return trip. When I saw my KX3 again I was immediately drawn to the remarkable design and how "cool" (pardon the pun) it looked, attached to the top of the rig. As I use my KX3 mostly away from home, it spends quite a bit of time in my backpack while I'm hiking up to some elevation to operate from - the additional weight is negligible. If you've ever used your KX3 in a hot unshaded area, and operating somewhat continuously, you'll understand the reasons for this heatsink - use the display to see the Power Amplifier temperature rise and see the effectiveness of the cooling provided by Fred's Cooler KX!
WT8P Rating: 2017-08-16
Well engineered, easy to install Time Owned: 0 to 3 months.
I've been doing a lot of digital mode work on HF, primarily FT8, but when I need a break from its pace, JT-modes. I ordered on a Sunday and received the Cooler KX on a Tuesday. Fred sent me some useful links to the installation guide and a video, but also offered some advice that I use a spudger (guitar pick or plastic card) to ease the double-sided tape off the original heat sink.

The Cooler KX is very well machined and everything lined up well. Even nicer was the use of hex bolts to make a firm fit (and avoid potentially stripping). My KX3 doesn't heat up as quickly and, when it does, cools down much faster than it used to.
VE7GRK Rating: 2016-07-18
An excellent product Time Owned: 0 to 3 months.
I met Fred at the Seaside SEAPAC show and he showed me his product. I bought one and had Fred install it. The detail in the design, the fit to my KX3 are just excellent. It looks like it came directly from Elecraft. It also has a groove built in to allow the fit of the Sidekick cover. I had to have one of the screw holes cleaned by a small tap the Fred recommends due to small paint particles from the original screw that was removed. This was easy to do and the new screws fit perfectly.
I AM SO IMPRESSED! The radio just doesn't get as warm as it used to and there is no power role back happening.
I definitely recommend this if you own a KX3. Fred has worked hard on the design of this great product and his customer service is just excellent.
N8NOE Rating: 2016-06-17
Big Differance.. Time Owned: 0 to 3 months.
I Have added the Cooler KX heatsink on my KX3 and a big difference in heat exchange. NO more Power backing down like I had issues with. Very good Work and a great add-on to any KX3.
N4UVR Rating: 2016-06-04
Engineered to work right! Time Owned: 0 to 3 months.
After researching several similar products I was sold on the Cooler KX due to the great information found on the website. The independent testing results are very accurate. I did a before and after test with the new Cooler KX installed on my Elecraft KX3 and the results were impressive! It was very simple to install. I highly recommend contacting Fred, VE7FMN before placing your order to help determine what your needs are. Fred will help you through the whole process to insure you are completely satisfied with his product. Great product with great service!
W3NCR Rating: 2015-11-23
Great product & service Time Owned: 0 to 3 months.
The product is great, and there’s a noticeable difference in internal temperature in the JT modes, which is why I bought it (the Plus). But the real reason Fred gets a five from me is customer service. I had a problem with one of the precision screws threading (a known issue on some KX3s). On a Sunday, Fred was extremely engaged in helping me work through it, multiple emails throughout the day. I was able to chase the threads and deal with the problem pretty easily. After that, the unit took only a few minutes to install. Like Elecraft, Fred clearly cares about his customers and takes pride in the product.