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Reviews Categories | Antenna Analyzers | Youkits FG-01 graphic antenna analyzer Help

Reviews Summary for Youkits FG-01 graphic antenna analyzer
Youkits FG-01 graphic antenna analyzer Reviews: 57 Average rating: 4.6/5 MSRP: $249
Description: Antenna analyzer covering 1 - 60 mhz
Product is in production.
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You can write your own review of the Youkits FG-01 graphic antenna analyzer.

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MM0HRL Rating: 3/5 Aug 27, 2015 15:00 Send this review to a friend
Visually attractive, but how accurate is it?  Time owned: 3 to 6 months
For HF + 6m use, this little unit is a tidy solution for getting a general idea of how an antenna resonates. You have to remember it's not lab grade kit and therefore not to expect lab grade accuracy in your results.
It scores heavily with its little graphic screen which appeals strongly to the gimmick-lover in me, but I wonder if its standard of manufacture is as solid as the case feels? I've no easy way to measure its frequency accuracy, so can only compare SWR curve results with SWR meters I already owned, one of which is in my MFJ 949e matcher. I don't see any particular discrepancy with these, and antennas I've measured with the FG-01 appear to respond as I'd expect when the settings resulting from its use are made use of.

I wondered if it'd end up a bit of a drawer-queen, but not a bit of it. It's been used a fair bit, in the shack and in setting up various mobile combinations.

However I do regret that it doesn't cover VHF. UHF isn't important to me but 2m is. There's an MFJ unit that also covers VHF but then you're up against MFJ's questionable reputation... Unsure how to proceed - which will probably mean I'll buy a good quality SWR/power meter for VHF. (I have an Avair unit at present, which looks like it performs around its price level. I do wish the FG01 covered 2m! However that's not a criticism, I knew its spec before I bought it. Unsure if I'd buy it again, (I suspect not) but hope the one I have lasts - all my kit gets kid glove treatment so if it does die it won't be from abuse.
OZ1LQO Rating: 5/5 Aug 5, 2015 01:08 Send this review to a friend
Nice little unit  Time owned: 0 to 3 months
I already have a miniVNA but decided to try out this little unit (FG-01A, 1-35MHz), for portable ops. First impression: It's so small! Perfect when /P, but actually, really nice and easy at home base too: No PC booting to do a quick measurement.
As have already been mentioned: It is not a VNA, it is based on a wheatstone bridge, so it will tell you the impedance at a certain frequency, not if it's inductive or capacitive. I found the impedance measurement to be relatively accurate, but somewhat frequency dependent, so don't bet your life on it. Also, the SWR is based on what a 50 ohm transmitter would see.

That said, if you use it for what it is: a quick, portable, and handy way to see how your antenna performs, you'll be one happy camper (or SOTA ops).

cheers and 73
AG6QR Rating: 5/5 May 8, 2015 15:43 Send this review to a friend
Compact, very nice  Time owned: 0 to 3 months
I bought the FG-01A version (35MHz) direct from Vibroplex. It now includes the internal battery and charger.

I often operate portable, and when doing so, usually use a Buddipole system. Every time I set up or change bands, I use an analyzer to tweak the length of the Buddipole to get a good match on my operating frequency. Previously, I had used an MFJ-259B analyzer. It worked well, but was big, heavy, and slow to operate. To be fair, the MFJ covers a greater frequency range (up to 2m) and does a couple of measurements that the FG-01a doesn't do, but the FG-01a, with its graphical display and automatic frequency sweep, is faster at telling me what I need to know: whether I need to shorten or lengthen my antenna, and approximately over what frequency range I can operate before adjusting the antenna again. The FG-01a is MUCH smaller and lighter than the MFJ, which is really important for my portable operation style. It's intuitive to operate and works well.
AG6ET Rating: 5/5 Feb 22, 2015 10:40 Send this review to a friend
Nice simple antenna analyzer, great display  Time owned: 0 to 3 months
I got the newer 1-72 MHz version. I bought it direct from Youkits, was warned that there would be a little delay, and it arrived in the time expected.

It is NOT a VNA, it will merely tell you that it's seeing a particular number of ohms at a particular frequency, and what the SWR from a 50 ohm transmitter would be.

That said, it's really useful, and it's easy to use, and unlike some earlier products in this area, it gives you a nice easy to read (even in the dark) plot of the swept frequency range.

So far I've used it to trim a shortened 40m dipole to resonance and I've used it to figure out the velocity factor of an unknown transmission line (zipcord matching stub for a portable antenna) by measuring the resonant point of an open stub.
N2PH Rating: 4/5 Jan 30, 2015 03:51 Send this review to a friend
Does the job  Time owned: 0 to 3 months
Received the FG-01 analyzer the other day and was ready to go.

Unfortunately, Ten Tec does not supply the necessary connection to hook up your antenna to the analyzer. I had to order that piece from Ten Tec more waiting and more money. I believe Ten Tec should make you aware you need a connector when you order the analyzer.

Anyway, the connector came hooked my antenna to the analyzer and was very happy with the results and what the analyzer showed. Lastly, the directions are minimal, but it is easy to use.
N6QIH Rating: 5/5 Dec 11, 2014 14:39 Send this review to a friend
Great little and compact SWR tool  Time owned: 0 to 3 months
I just got my Antenna SWR analyzer and put it right to work on my antenna farm here at the QTH. What an eye opener. I always wondered why the tuner on my FT 2000 took so long to tune my antennas and with this great tool and some adjusting I will get on the air a lot better than before. I really wanted the tool for my Buddipole and Ventenna antennas that are used for QRP work on mountaintop sites. This will be a really good addition to my systems when hooked to the Yaesu 817 radio. I can now operate with peace of mind that all 5 watts are getting to the antenna.
VE7JDZ Rating: 4/5 Nov 24, 2014 12:24 Send this review to a friend
Decent  Time owned: 6 to 12 months
I think this is a nice little piece for the price. It works and provides the information every ham would need to build and/or adjust antennas.

The purchase experience is a different game. At least for Canada, be prepared to pay for the analyzer+shipping costs and then a few weeks or months later, for a customs charge. The seller will say nothing about this and will be silent after you reach out to find out why the charge when the seller claims the total price includes all charges. Be aware!
VK3ZGP Rating: 5/5 Sep 25, 2014 19:00 Send this review to a friend
Great Little Analyzer  Time owned: 0 to 3 months
Here there are a large number of good reviews of the YouKits FG-01 so I'll just focus on two areas.

(1) Support
My original long wire installation wended its way though trees and I 'improved' it by clearing back the trees. Unintended consequence was an increase in the 50Hz voltage from a 66kV power line. On the first day I managed to destroy the FG-01 and then discovered the terminal voltage was too high for the FG-01 or any other device. The appropriate Balun and earth stake resolved that issue. I emailed the YouKits, explained exactly what had happened and offered to pay for the repair as the unit had been damaged by my actions and I didn't believe it would be a valid warranty claim. They requested I return the unit to China. The unit was promptly repaired at no cost to me. It was a very good experience and professionally handled with good communication.

(2) Batteries
Although the units are sold with a battery pack and charger, mine also shipped with a AAA battery holder that could be alternatively installed. Now you are spoilt for choice. I installed the supplied battery pack and have not had any battery issues. As far as I'm concerned there are no battery issues these days.

I have no hesitation giving this great little unit a rating of 5 out of 5.
AD0AR Rating: 5/5 Sep 10, 2014 19:14 Send this review to a friend
Bought the newer version  Time owned: more than 12 months
I purchased the original version with no memories back in 2012. Real pain when jumping bands but worked fine. Youkits then rolled out a newer version of the FG-01 with much longer battery life/ larger screen/ AND 10 MEMORIES! I purchased this one too as soon as it was available in the marketplace. The 10 memory feature suits my needs perfectly!
I have had conversations with another amateur who did not like how the graph would change resonance when grabbing/ letting go of the metal case. I experienced the same "jitteriyness" on both of my units, but I was able to rapidly pinpoint the problem. Common mode currents! Choking the shield of the coax at the feedpoint with the appropriate type of ferrite eliminated the shifting of the graph and also increased weak signal performance of my station by reducing out of band noise on my coax shield.
SO the meter not alone helped me tune my antennas to resonance, but also made me aware of a small deficiency in my install. Fantastic piece of test equipment!!! Don't forget to order the battery if the version you care to purchase does not come with one, you will need the rechargeable battery.
Word of caution about the charger though- It is the single smallest but HUGE generator of RFI you have ever seen. I have banned it to the farthest reaches of my house and it still gives me S-5 to S-9 of white noise so I only charge the battery when I am not operating and unplug it when I am on the air. Problem solved.
In God we trust, all others we monitor AD0AR
AD4C2006 Rating: 5/5 Aug 15, 2014 05:49 Send this review to a friend
Great instrument  Time owned: 0 to 3 months
I had nothing else to say as WOW ! I am impressed with everything on this tiny antenna analyzer, I sold my MFJ-269 and purchased this one because of its small size, it fits in my shirts pockets easily, its very light and even it did not come with a manual, it was for me few minutes to figure out how it works. I hooked first a perfect 50 ohms dummy load on the BNC connector and as soon turned it on, there were two straight horizontal lines, meaning it was showing 50 ohms all over with the upper line and 1.1 swr with the lower line. Then connected to my 20M bazooka and saw 1.1 with 48 ohms on 14.100 Mhz and my 17M bazooka showed 1.1 with 49 ohms on 18.150.
With this instrument you don't need to be moving knobs, just set the center freq (CF)and the spam width (SW)and you are ready to see a graph of you radiation system in one second.
Very handy,useful and afordable instrument that every ham must have as station accessory. I also like the fact that you can memorize all common freqs you want to check within a band so you will not need to move the freq knob anymore, just the memories.
My two dislikes are the fact that it won't come with a charger so I purchased trough a four slots charger and also three 14500 Li-ion rechargable batteries to complete the set.
Batteries seem to last long, I have done many measurements and meter shows still 12.1V after a full two hours charge although you can use batteries as they come not fully charged.
The other dislike is that the plastic battery holder once you install the batteries, will stay lose inside the box, what I did was to stick it on the cover upper wall using heavy duty Velcro so it will not touch the board.
This is a keeper with no doubt.


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