The price is a rip off because not too may similar keyers are on the market. All this because of poor workmanship and lack of QA/QC associated with very cheap mechanical switches. Trying the unit on the air I've got a good report from France and a not so good one from VE2 but this is not relevant until I hear a record of my voice.īottom line: the product is intended to be top of the line but is not even a mediocre one. Repetition does not work at all, one needs to keep pushing buttons. OK for now although I will eventually need to have them repaired. ![]() Using the Yaesu mike the sound is acceptable and I was able to set a decent volume using both adjustments. Then I tried to record the message #1 with the inside mike. Then, power on and trying to do the self test I realized the push button switches for memories 3 and 4 were stuck inside! Opening the encasement and forcing the switches few times I was able to release them. I checked the jumpers and I had to make three corrections to be able to use it with Yaesu FT857. This is typical to MFJ products, I had the same problem with a CW keyer. ![]() Not a surprise to find the Audio-In jack and the Level Adjustment pot misaligned to the case holes. I opened the box and I start checking the unit. The keyer came on time in original MFJ carton but not sealed. First of all they raised the price to $190. In preparation for ARRL-SSB I purchased the 434B from HRO. I will be looking at trying to immunise it so it can actually be used for its purchased purpose, but not impressed. Ferrites added to all leads had no effect so we had to bin it and operate without. After several various tests we deduced RF was getting in as reducing RF power a lot cleaned it up, but still not as clean as when out of circuit. These gave reports of awful audio on through. It's not the best setup to gauge so I waited for on air tests. With it working now and testing on a load (no home antennas) my dongle SDR indicated the through audio sounded a LOT better than the recorded audio played from a memory. This'll be why they come set to Yaesu jumper settings as those connectors are PCB mounted and not wired off board,and can be used to perform basic functionality tests.(If they bother)įixed that with the solder iron. The human robot I guess just put the wires in the same place without seeing the connector was out of whack. Get the DVM out and buzz out the PCB to the 8 pin mic input and the connections were made off 1 position out of step. Treble and quadruple checked the jumper settings, all good. ![]() All seemd OK except I could not get the mic to tx the radio. Set everything up on the bench, all seemed good apart from the 8 pin mic socket was at 11 o'clock not 12 o'clock position. But before we get to that.īought new from UK vendor,all looked OK. Bought this to use in a major contest and ending up taking it out of line.
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