This document has been created from materials supplied with purchase. It is very interesting to check the resonant frequencies of common objects already in place, such as gutters, non- grounded window frames. Often these can make interesting receiving antennas. Just remember to connect something to the grounded outside part of the RF-1 coax or the measurement is meaningless. The screw is also "ground. But they are easily trimmed using the RF
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Toggle navigation. Forgot Password. Reviews Home. More than got my money's worth. Allowed me to tune a 10m loop I made fairly easily. The one I have seems to be solid. No display or other issues. Tuning can be touchy, but it certainly does the job and the fine tune control does help.
I like it! Did a review on this unit in It had always worked fine, then pulled it out for an annual antenna check and it was working erratically.
Check the battery and it was down a little so I changed it. Didn't help at all. So after reading about all the bad experiences some people have had Been having this unit for over a decade, time for my "after winter check on the antenna".
The unit was acting unstable, so I changed the battery. That didn't help at all. So I decided to open the unit and take a look at the inside. I was shocked to find numerous components that had no solder on them at all, don't see how it managed to work for 11 years! Anyway, after 15 minutes of soldering, the unit worked better than it ever.
It has always served me well, but it works even better now solving a minor problem I had over the years of every once in a while the unit would get real "touchy". By itself, the hard-to-read display is a sign of trouble. Seeing it requires just the right tilt of the display against the light. The unit, bought at a hamfest and clearly not much used, worked for a week or two of backyard measurements. Later, multiple ohm dummy loads produced a 1.
Flexing the case would change the readings, but never quite correct them. An hour of resoldering seems to have fixed the functionality problems--although the display remained characteristically hard to read.
Full adjustment and calibration requires unsoldering a board. Given that this is a field unit, that would likely see more physical abuse and temperature fluctuations than a bench tool, the inability to recalibrate the unit without full disassembly is a serious design flaw.
As people say, there are some switch and connector pins that do not need to be soldered because they serve no electrical function. But, mine had some necessary pins and leads that were not soldered. Soldering all the pins on components is actually good practice, and improves mechanical stability. The unit I got looks like a very hurried job. It appears that a lot of design compromises were made to cram a potentially very useful tool into a just-too-small box. The unit looked brand new.
Took it home and fired it up with a precision 50 ohm resistor. The SWR was 1. I opened up the unit and found lots of solder flux residue on the board. I cleaned that up best I could with some flux remover. On the LCD circuit board, there were 14 solder pads with the lead of the part sticking through the hole but was not soldered.
I soldered all 14 connections. Put the unit back together and checked the calibration resistor again - SWR was 1. No wonder the company went out of business - they must have told their assemblers to cut back on the use of solder Although a piece of consumer goods, this unit has proven to be exceptionally useful and accurate.
Antenna reactance and capacitance measurements would put some professional equipment to shame. I have had it for at least 15 years. Excellent unit, great for field day and portable operation. Stan AK0B. Luck of the draw, some are fb, sum crap. Guess I got lucky. My VA-1 worked fine from the day I got it 8 or 9 years ago. I used it for antenna work and bench work. My ONLY complaint was the 9 volt battery.
I hate those things. Expensive and usually dead when you pick up the equipment to use it. I recently sold the VA-1, but it served me well for quite awhile. I understand that Autek is out of business now, but a VA-1 on the used market would still be a useful tool. Time Owned: more than 12 months.
I have had mine for 6 years. No problems, works great and I like the size and ergonomics. Manual is well sorted out and I learned quite a bit from reading it. Great value and would give it a 6 if I could. Would not hesitate to buy from Autek again. I've got four of these things in various state of repair Does anyone out there have a schematic for the thing so I can fix the ones that are broke now that they don't sell the RF-1 any more?
I got two of these at flea markets and suspect the guys dumped power into them. More than 12 Months. There is a delay before newly submitted reviews are Approved. The delay is for new review screening and approval. The delay varies from minutes to a day or more. Before adding a new product use the "Search" tool on reviews Home page to determine if that product already exists in a category. A valid product review is one where you have experience or knowledge of the product you would like to share with others.
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Autek Research RF-1 RF Analyst
QRZ Forums. I was looking to buy the MFJ b until I ran across this one at a cheaper price. Any comments appreciated K5EVR , Jun 15, I like mine very much. It oes not do as many things as the MFJ but then it doesn't cost as much either. It is easier on batteries and is small enough to take up the tower with you to use.
Autek Research RF 1
An aquired used RF1 had problems from the start because the unit fails intermittently, usually when I need it most. If you squeeze the cabinet or loosen the screws it works. The buttons sometimes don't function, the knobs have worked their way loose. Power consumption is about mA on the 15 - 30 MHz ranges.
Autek Research RF Analyst