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Reviews Categories | Microphones | AB5N - Icom HM-151 - IC-7000 mic. modification Help

Reviews Summary for AB5N - Icom HM-151 - IC-7000 mic. modification
AB5N - Icom HM-151 - IC-7000 mic. modification Reviews: 159 Average rating: 5.0/5 MSRP: $39.50
Description: Modification to the Icom HM-151 hand microphone that comes with the Icom IC-7000. This mod fixes the poor FM audio that this microphone and radio combination has from the factory. The modification replaces the mic element and a capacitor, adds a shaped acoustic foam shell, widens the mic opening, adds a wind screen (pop filter) and a 1oz weight to the microphone shell.
Product is in production.
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KR6J Rating: 5/5 Jan 29, 2015 14:09 Send this review to a friend
Awesome Audio!!!  Time owned: more than 12 months
Well. Not sure I can add any more to the great feedback that's already here, but I'll try. I ordered the parts and did the modification myself back about a year ago and man-oh-man what a difference this modification makes! In addition to that, I spoke with Bob over the telephone and he provided some great technical support. Great support and a great modification. Thank you Bob!!
KK4YMB Rating: 5/5 Jan 11, 2015 22:01 Send this review to a friend
Worth four times what I paid  Time owned: 0 to 3 months
AB5N HM151 Mic upgrade is an absolute requirement for any IC7000 user. This upgrade really brings out the max potential of the IC7K Transmitting ability. Their are many sites across the net that have before and after audio but hearing is believing. For a mere $50 this is the best money you could spend on your ic7k.
N2VU Rating: 5/5 Nov 17, 2014 12:46 Send this review to a friend
Mod also applies to HM-133, HM-133V and HM-207 mic's  Time owned: 0 to 3 months
For as much as anyone can assume modifying their mic's themselves, what Bob Nagy does with these hand mic's makes any of these associated ICOM radios sound so, so much better and also makes them FEEL better too.

What he does to the mic's - or at least to mine was;

- Change the capsule for one that has far better dynamic range and overall sound
- Swap out the high-pass filter capacitor, allowing for the qualities of the capsule to be appreciated
- Swap out the factory pop-filter (foam at the mic hole in the mic case) to one that's less dense and more acoustically transparent yet still affective.
- Subtly opens/widens that microphone hole just a bit without affecting the aesthetics in any way
- And a detail that I really appreciate a lot is the one once weight that Bob adds to the inside of the case which gives the mic a far better, solid, dense feel.

I first had Bob do the mod to my HM-207 which is the mic that comes with the ICOM ID-5100 D-Star Radio. The results exceeded my expectations. Having two 5100's I compared the modified and unmodified mic's on the air and the reports were all the same. Everyone said that the modified mic sounded louder, clearer, fuller, warmer as for detail, it was as if toggling between being many miles away from the repeater to being at the repeater simply far better than stock.

Suffice it to say that my second shipment to Bob was a box that had the other HM-207 and the HM-133's for my other ICOM radios! Well worth the price now that all my ICOM's sound so much better. I literally get unsolicited remarks about my audio very often. By the way, his turnaround time is pretty impressive too. Each time he worked on the mic's the day he got them and shipped them right back.

Great guy, very impressive and affective mod with stellar results. The AB5n mod is a must!!
2E1RDX Rating: 5/5 Jun 10, 2014 13:36 Send this review to a friend
Stunning  Time owned: 0 to 3 months
I bought a IC-7000 and my mate said it sounds poor, you need to get the AB5N mod done on the mic,
So off went the mic to Bob it took 11 working days from the day I sent it till the day it was returned that was from the UK to USA and back including the work,
Now the part that matters I went on 10m with Jim M0HDX as He is the person I trust to set my audio up how I like it crisp and punchy, 5 minutes later He says perfect leave everything there it sounds superb Thats the best money you have ever spent in Amateur radio ??? Jims words not mine but I have to agree
The service from Bob is 2nd to none and can't say more other than if you have a IC-7000 get your Mic off to Bob and get superb audio reports
Thanks Bob a happy customer or should I say another happy customer
rgds Ian
KG6ANT Rating: 5/5 Jun 7, 2014 20:51 Send this review to a friend
30 day Follow-up  Time owned: 0 to 3 months
WOW, MANY HF contacts and sterling reports. FM I finally got the rig in my car; HF withstanding, I have had MANY good reports on local repeaters (2 meters and 70 cm), HOWEVER, since I was mobile I had to turn the mic gain down to 20% but everyone LOVES the overall sound quality. Folks you will NOT be disappointed!
KG1F Rating: 5/5 May 26, 2014 09:36 Send this review to a friend
Great service - Fast turnaround!  Time owned: 0 to 3 months
Just moved to a new QTH and before setting up my new IC-7100 thought I'd upgrade the microphone to improve the audio.

I mailed the HM-151 to Bob on Tuesday - Bob did the upgrade and I had it back on Saturday, just four days later. The extra weight he added improves the heft and balance of the mic, and the audio reports I'm getting are great!

I'd now much rather use this mic with great sound, and the handy DTMF keypad and controls built into it - the Heil's can stay in the drawer.
WZ1P Rating: 5/5 Apr 22, 2014 08:14 Send this review to a friend
The mod. (7 years later)  Time owned: more than 12 months
I had Bob do the mod on my HM-151 seven years ago and posted a 5/5 review about how it corrected the mic problems. Well after all this time my IC-7000 and the 151 mic are both doing a great job on worldwide DXpeditions every year. I always get great signal reports in pileups running 100 watts or less into a Buddipole portable antenna on battery power from some of the exotic locations we visit. I have a lot of bucks invested in the best light portable equipment and it all starts when I depress the mic button and speak. I know my mic is 100% correct. After that it's my job to make sure that I have the very best equipment downstream. I have never had a bad audio report with this mod. If there was a better fix out there for the 151 then you wouldn't be reading this review.
N5DRM Rating: 5/5 Mar 25, 2014 19:03 Send this review to a friend
Couldn't be better.  Time owned: 6 to 12 months
I've had Bob do the modifications to both my HM-151 and HM-36 microphones. Very fast turnaround and what a difference to the output audio. His fee is most reasonable and his service is impeccable. I give my highest recommendation and thanks to Bob.
KB8SB Rating: 5/5 Mar 25, 2014 14:17 Send this review to a friend
Great mod at a reasonable price.  Time owned: more than 12 months
During a recent QSO while using my IC-7000 with its matching HM-151 mic, I was given a report of very poor audio and strength. My pwr and mic gain levels were at 100% but I still had little or no ALC deflection. I heard about Bob's (AB5N) modification for the HM-151 so I sent the mic to him and it was returned in less than a week. I am now getting super reports with the mic gain set at 50% or less. One option Bob offers during the modification is the addition of a 1oz weight in the mic. I highly recommend this be done. The weighted mic feels so much better in your hand.
THANKS Bob for making a poor mic into a great sounding one.
K8MSH Rating: 5/5 Mar 12, 2014 13:34 Send this review to a friend
Well done!  Time owned: 0 to 3 months
Quick turn-around. Did audio mod and fixed flaky PTT. Works great, sounds great. Highly recommended!
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