Re: Topband: best headphones for cw

2016-06-20 Thread Björn SM0MDG
Chuck, I use Bose QC25 active noise cancelling headsets. They are very comfortable to wear for hours in a contest, much more comfortable than any “DX headset” I have tried. They are better mechanical quality than their predecessor the QC-15 and they fold to a smaller package for travelling.

Re: Topband: best headphones for cw

2016-06-20 Thread Barry N1EU
I own or have tried them all. For high level of isolation plus non-fatiguing full fidelity sound, go for the Beyerdynamic DT770M. They are significantly more isolating than the other phones mentioned. Barry N1EU On Fri, Jun 17, 2016 at 4:07 PM, Charles Yahrling wrote:

Re: Topband: best headphones for cw

2016-06-19 Thread Mark
On 19-6-2016 4:24, Paul Christensen wrote: After checking this evening, apparently Elecraft doesn't post schematics of their amplifier. It would be an interesting exercise comparing notes. I suggest you contact Elecraft directly. We broke down two KPA500's during the 2016 CQWW 160 on its PTT

Re: Topband: best headphones for cw

2016-06-18 Thread Paul Christensen
>"The KPA does have diodes, but I don't know why the KPA diodes seem to make it >and others don't. Maybe not stressed as bad switching into an open load, which >might be the real culprit that folks don't want to admit to." The KPA500 has substantially less field operating time compared with the

Re: Topband: Best Headphones for CW

2016-06-18 Thread Jim Murray via Topband
Ditto on the Sony MDR-7506.  Have been using them for quite a while.   Not sure why they were my choice but generally I do quite a bit of research before buying.Regards,Jim/k2hn _ Topband Reflector Archives - http://www.contesting.com/_topband

Re: Topband: best headphones for cw

2016-06-18 Thread Guy Olinger K2AV
I have experience with various Alphas including my current 8410. Their relays *are* loud. Noise cancelling headsets can take that way down. As to going to diodes to get rid of relay clang, that is another matter. Though some say they never have had those diodes go bad in their Alpha, others seem

Re: Topband: best headphones for cw

2016-06-18 Thread wb6rse1
Chuck - I’ve been very pleased with Heil ProSets for both CW and SSB. If you can, borrow the recommended models to see how you like them. What’s “best” is always going to be subjective just because there are so many variables. Communications frequency response vs full range. Over the ear or

Re: Topband: best headphones for cw

2016-06-17 Thread JC
Some headphone can isolate noise very well. I like the Sennheiser HD280 , it provide 36db isolation, but the best one I have is the MC5 from Etymotic ear plug that can reach 42 db isolation. 73' JC N4IS _ Topband Reflector Archives - http://www.contesting.com/_topband

Re: Topband: best headphones for cw

2016-06-17 Thread Richard (Rick) Karlquist
I have a pair of Sony noise cancelling phones. Once you try NC phones, you will never go back to conventional ones. Now if we could just get someone to make a set with a microphone. But you asked about CW, so that doesn't matter. There is an issue with RF getting into them, so they might not be

Re: Topband: best headphones for cw

2016-06-17 Thread n0tt1
I like my QC-15 noise cancelling headphones! Worth the money and they DO cancel-out fan noise from the K3 and my KW amp. I don't have any clacking relays when I key, so I can't comment on that. I use an adapter for the 1/8" plug on the QC's. 73, Charlie, N0TT On Fri, 17 Jun 2016 16:07:33

Re: Topband: best headphones for cw

2016-06-17 Thread HAROLD SMITH JR
com> To: Topband@contesting.com Sent: Friday, June 17, 2016 3:07 PM Subject: Topband: best headphones for cw Looking for tips for headphone types for K3, CW only, so need 1/4 inch stereo jack. Object is to isolate from ambient noise in the shack, such as relay clatter from 1K-FA amp when

Topband: best headphones for cw

2016-06-17 Thread Charles Yahrling
Looking for tips for headphone types for K3, CW only, so need 1/4 inch stereo jack. Object is to isolate from ambient noise in the shack, such as relay clatter from 1K-FA amp when keying. Been using a cheap set that came with Yamaha keyboard - I like how they attenuate hi freq band noise, but