Hi Tonno,
All HME version are electret, you have to look up the HMD 46-3-6.
http://www.sennheiser-aviation.com/air-traffic-control_500466
73
Peter
-----Original Message-----
From: Tõnno Vähk [mailto:tonno.vahk@gafm.ee]
Sent: Samstag, 1. Oktober 2011 11:50
To: Peter Voelpel
Subject: RE: [TowerTalk] Bose A20 aviation headset for ham purposes?
That is strange, I just checked the page:
http://www.sennheiser.com/sennheiser/home_en.nsf/root/professional_aviation_tower-headsets_500467?Open&row=2
And it says electret mic. I wonder if there are different versions?
tonno
-----Original Message-----
From: Peter Voelpel [mailto:df3kv@t-online.de]
Sent: Saturday, October 01, 2011 12:11 PM
To: 'Tõnno Vähk'
Cc: towertalk@contesting.com
Subject: RE: [TowerTalk] Bose A20 aviation headset for ham purposes?
Hi Tonno,
Check the technical data page of the HMD 46-3-6.
The mic capsule is a dynamic one with a 200 ohms transducer.
I use it on all my radios, Icom transceivers IC-751A, 765, IC-740 and Flex
SDR-1000.
With the old Icoms I need a little pre amplification to get the vox properly
working, but that is the same with other dynamic mics like my Sennheiser
MD421 or Kenwood MC80.
Yes, no problem with the headphones, 300 ohms fit well.
73
Peter
-----Original Message-----
From: Tõnno Vähk [mailto:tonno.vahk@gafm.ee]
Sent: Samstag, 1. Oktober 2011 10:32
To: Peter Voelpel
Subject: RE: [TowerTalk] Bose A20 aviation headset for ham purposes?
Thanks Peter,
I see those have also electret mic I guess. How are you using it? What
radio do you have?
Headphones are 300 ohm? So this is totally fine for any radio I guess?
73
Tonno
-----Original Message-----
From: Peter Voelpel [mailto:df3kv@t-online.de]
Sent: Saturday, October 01, 2011 6:24 AM
To: 'Tőnno Vähk'; towertalk@contesting.com
Subject: RE: [TowerTalk] Bose A20 aviation headset for ham purposes?
If you don´t need active noise cancellation I like to suggest the
Sennheiser
HMD46 which I use.
http://www.sennheiser-aviation.com/air-traffic-control_500466
As I am wearing glasses and having a relatively large head most other head
sets are deadly for me in a contest.
The Heil Pro headset I can endure two hours maximum.
73
Peter, DJ7WW
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of Tőnno Vähk
I hope someone who knows more about headphones and mics can help me find
the answer if this headset can be used.
73
Tonno
ES5TV
p.s. any other recommendations on perfect heatsets (that would not kill
the ears in 48 hours like Heil) are also very welcome.
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