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Hi William, wondered if you had an update on the antenna? I just received my antenna but forgot to order the adapter. I can pick one up on amazon for $10 which is about how much i paid for the whip. Just wondered what you thought of the durability and how the base connection with the adapter has held up. Thanks!

Intermodulation distortion is the most important parameter of spectral purity of an amplifier.

also the 7mhz coil is great too

Thank you for the helpful instruction.

Nice review, Sir'. 73 de KF4LBG

HI William - nice video! Any chance that you could do a similar set of tests at 50 Watts out? Sometimes gear like this is OK at lower power, then kind of falls apart when operating closer to full spec. 73, Len, KD0RC

I've been playing around with this antenna to create a portable version that'll fit on a tripod with the antenna mounts made by Workman. One works well to create a vertical whip. Play around with the version of the mount with two channels and you'll find a way to use two of them to bolt them together and mount two of the antennas horizontally and one on top for a vertical whip. That gives you multiple antenna options. (1) A vertical standing alone. That'll need wire radials. (2). A vertical with two horizontal antennas as radials. The latter will need to have their center grounded with a banana plug to function as radials. 3. A horizontal dipole. The center of one of the SO-239 connectors will need to be grounded. 4. Two antennas, one vertical and one horizontal, so you can switch to the one giving you the best signal.

I bought three of these 18.4 ft antennas from eBay. There's a fix for that weak base connector. Find a aluminum tube just wide enough to slip over the antenna, base connector and adapter. About a foot should do and won't add much weight. Cover the adapter, base connector, and the length of the antenna that'll be covered with a layer of J-B Weld steel-reinforced epoxy. Then slide the tubing over all three, turning it to spread the epoxy around. Let it dry overnight to harden.

Good video, very helpful. Cheers and 73!

Thanks, one of the only reviews that look at the spectral purity of the amplifier! Great information, and thanks for taking the time to do the measurement and post the video.

HI Sir, I{m planning on using this also with a Trusdx, that sometimes, gives more than 5 watts. THe only option I found out is to power the radio with less voltage. or with a variable step-down converter in line with the battery. Thanks for sharing outstanding review short and sweet ! 73 de NP3JD

William, Thx for the testing & info. My PA50 is on order. I plan to use it on POTA trips around Texas. I have an MMX Transceiver & want to try it on CW as well as some SSB using a Xiego X6100. Keep up the good work!

Nice review! Thanks for running this amp through the tinySA, seeing the harmonics in real time is very helpful.

I thought that it had some sort of "intelligent/smart" technology that did automatic band switching using only "RF in," without the acc connection.

Excellent! Have one on the way (with a AT100M tuner) for my trusdx, QDX and G90. Do you know anything about connecting the trusdx PA keying output to the PA50 ACC input? Or ANY info about the PA50 ACC input and exactly what the setting for ICOM vs XEIGU actually does?

@dl2man Thanks. That means a lot. I appreciate the comment. I saw your comment but now I don't see it but wanted you to know I read it. Thanks for all you have done to get the (tr)usdx out to the world. 73 K0WDB

Excellent - very helpful!

Great review! Please what is the power input connector - is it an XT60?

We experimented with those whips awhile back. The base connector is too weak to handle tension, wind load and antenna falling to the ground. They broke under 48 hours of testing in our parking lot.

Thanks for this value video operating the antenna on the field, I hope catch you soon on my rig! TI2GBB Greg.

Interesting, it looks like a decent potable antenna, you need a way to mount and connect to it of course.

If you check out the "Ham Jazz" TH-cam channel he uses the MFJ whip as an elevated vertical with 1 or 2 elevated radials and it works really well. I'm tempted to get this but wondering about the quality between it and the MFJ and Chameleon whips. Do you have experience with either of those and if so how do they compare?

What are you using as a tuner?

Where is it resonant?

Looking forward to hearing more about it. What type of connector does it have at the bottom?