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write your own review of the GAP HEAR IT Inline Module.
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KC2SCY
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Rating: 3/5
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Sep 19, 2009 13:16
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Works as advertise
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Time owned: 3 to 6 months
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I brought my unit at this years hamfest in Ohio. I could not wait to get home and try it out. First I must say it does work. However the craftsmanship is very poor, connection come lose, the speaker fitting is horrible. If I uses my amp with unit in line I now get feed back through my speaker which I never had before.
otherwise it does as advertise
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W4KVW
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Rating: 5/5
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Jan 27, 2009 16:47
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GOODBYE NOISE!
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Time owned: 0 to 3 months
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Well it's just as I suspected it would be.The GAP "HEAR IT" IN LINE MODULE is just as GREAT as the GAP "HEAR IT" SPEAKER.The floor noise or white noise is NO LONGER a problem when using EITHER the IN LINE MODULE or the DSP speaker.You can even open the squelch on FM & NOT be blown out of the shack from the noise.THANKS AGAIN "GAP" for making 2 meter WEAK SIGNAL operations "FUN" as it should be with your GREAT DSP products!You make my old ICOM 271A "HEAR IT" WITHOUT the noise! }:>)
Clayton
W4KVW
EM80
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KG4EKC
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Rating: 5/5
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Apr 10, 2008 17:55
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Excellent addition for FT 857D
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Time owned: 3 to 6 months
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I really love this device. It makes it so I can hear even weak signals. It has really helped me enjoy HF mobile. It is like listening to FM on HF. I use this module all the time. It really adds to the dsp filters in the 857D. I use this device with a moto speaker and there is volume strength loss but it is quite usable. I'm sure in the higher end radios it would be a waste of money but in this radio it is great.
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N2WUX
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Rating: 5/5
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Apr 4, 2008 15:30
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A very good performer
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Time owned: more than 12 months
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I purchased the unit at the Dayton Hamfest about 3-4 years ago and it works great.It is the perfect partner for my noisy Icom 706MK IIG whose own built-in DSP is very poor.Lately however,the unit was cutting in/out which I attributed to loose/worn connections but it turned out to be the 9.2 Kohm input potentiometer which I was always adjusting.I took the unit apart by removing the 4 rubber feet (the screws are underneath)and replaced the worn pot with 8.2 Kohm and 1Kohm fixed resistors and it worked perfectly.Now I control the input level by simply adjusting the volume control of the radio.I would reccommend this unit to anyone with a " NOISY " radio like my mobil unit !!
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WB9FMC
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Rating: 3/5
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Dec 6, 2007 18:39
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Okay: YMMV
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Time owned: 6 to 12 months
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The bottom line is that it helps some of lower end digital receivers eliminate noise that the radio *may* be exacerbating (see Rob Sherwoods presentation here: http://www.sherweng.com/documents/Dayton2007w.ppt).
These observations are on CW.
When I was using my Yeasu FT-757, it made a very noticeable difference, making copy much easier. But, when I use the Elecraft KX-1 or the Drake R-4C, the amount of signal required (as in audio S/N ratio) to "drive" the processor is at the point where it's already a comfortable copy. And, if you set it to copy a weak signal (at the edge of its capabilities), and that signal fades a bit, the DSP looses it altogether. If you bypass the unit, you'll still hear the signal enough to copy. I'm not sure why this is. It may be a general audio DSP issue.
So, I conclude that while it can help some radios, your millage may vary (YMMV).
kurtt, WB9FMC
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K4SFC
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Rating: 2/5
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Jun 13, 2007 07:39
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POOR QUALITY
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Time owned: 6 to 12 months
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I found the GAP DNR module to be poor quality material. The plastic fuse holder body, broke into pieces in my hand when I took it out of the box. It's really an inferior grade of plastic. And the plug-in cables fit very poorly and won't maintain connection. Contact is broken by the least vibration, i.e. people walking by the rig.
WHEN it's working, it does a good job!
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W4CAS
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Rating: 5/5
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Jan 25, 2007 06:07
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What a great accessory!
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Time owned: 3 to 6 months
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I have had my GAP inline module for about 4 months and my only question is, why didn't I buy one sooner? This unit works at least as well as advertised, maybe better! Depending on band conditions and noise levels, I never have to use a noise reduction setting above 3 or 4. Anything above 4 gives the audio a "watery" sound like you are listening through a hydrophone on the ocean bottom - but I'm sure there might be some conditions that warrent the use of higher processing levels. The only things I could find fault with are the smallish knobs (but I'm ham-handed...no pun intended!) and the somewhat awkward layout of the module. Seems like they could have designed a box with all the controls on the front and all the inputs, outputs and power connections on the back - but maybe I'm being too picky! And maybe a future model could include an automatic notch filter. But beyond my overly critical comments, this is truly a fantastic accessory!
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KG6QHP
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Rating: 5/5
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Sep 16, 2006 11:58
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Terrific
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Time owned: 6 to 12 months
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I have used the gap "Hear It" inline module for six months with my ft-840 and ft-897d. The noise reduction is terrific and I use it more often than not. Once I purchased the ft-897d (with DSP), I thought that I would not use the GAP module except with the ft-840. Wellllll I was wrong. With the GAP and the dsp in the ft-897d turned on, the difference is amazing. I highly recommend this product wether you plan on using it with boat anchors or improving the noise reduction with a radio equipped with dsp.
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WB4VET
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Rating: 5/5
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Sep 9, 2006 16:35
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Better than advertised
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Time owned: 0 to 3 months
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Simply put, it is better than advertised. It works with almost every radio and definitely gets rid of all types of noise. Congratulations to GAP for a piece of equipment that does what it is supposed to.
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N2JSG
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Rating: 5/5
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Sep 7, 2006 23:59
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A Powerful Aid In Noise Reduction
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Time owned: 0 to 3 months
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I must echo other reviewers in saying that the Hear-It module works amazingly well. I must admit that I was initially skeptical of its ability to REALLY null out AC power line noise and the annoying buzz from dimmer switches. Needless to say I was quite anxious when I put the module to the test. Well, my anxiety was replaced with elation when I discovered that it eliminated all of the AC powerline noise completely from the reception of the desired signals. Not reduced noise, but complete elimination of the noise. FANTASTIC! Now I can monitor longwave signals again, something I could not do prior to my installation of the Hear-It module. I can't begin to tell anyone who suffers from the scourge of radio reception, namely line noise, of how satisfied I am with the unit. Also, I have eliminated my dimmer buzz.
Another thing that the Hear-It does well is the reduction of hiss and splatter caused by nearby signals. Also, lightning-induced static crashes seemed to be "softened," increasing intelligibility of a desired signal. An outstanding achievement.
However, as great as this unit does perform, like anything else, there are some drawbacks, but these are quite minor. First, in some situations, a noticeable fuzziness occurs when the DSP reduction is engaged. I have found that reducing the gain level of the DSP reduces this effect. Also, the unit does not come with "feet." As a consequence, it sits on one's operating desk w/o any stability and is prone to moving around when touched. Since my radio gear is installed in a rack console, I have Velcroed the module to a blank rack panel to alleviate the mounting issue.
Will you get the same great results I get from the Hear-It Module? I feel confident that you will, based on my experience.
73, Dean
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