开云体育

Good mic for Ubitx and Bitx40

Mike All Messages By This Member #38276 Group, ?I just wanted to let everyone know of a decent mic to use for either the Bitx40 or Ubitx. ?I use a General Electric Phoenix microphone part number 19B801398P3. This Microphone is a dynamic element WITH and internal preamp! This mic drives the BITX family nicely without screaming into the mic. I hope this helps someone! 73's Mike WA3O
Mike All Messages By This Member #38279 I forgot to mention how to wire it up... RED = PTT White = Mic Black and Shield = GND That is it! Mike WA3O
[email protected] All Messages By This Member #64128 Does this work without any alterations to the board??
_Dave_ AD0B All Messages By This Member #64132 I would add that I get a lot of good signal reports using the stock electret mic element.
Paul Dobosz #64157 Almost all of the land mobile (Motorola & Harris/GE/Ericsson/MaCom) are dynamic mics that have an internal preamp.? I've had an excellent experience using them in applications that were designed for Electret mics.? They are plentiful and relatively inexpensive in both NOS and used condition on the usual online sites? and are built extremely solidly..? The mobile mics tend to be quite heavy with most having a large piece of heavy steel inside for no other reason than to give them "heft".? I generally remove the weight as I wire the mic up for the radio I'm using it on. 73 - Paul - K8PD
iz oos All Messages By This Member #64158 I believe the stock element is fine. I have tried other electrets elements and all delivered less output. I did change I believe R63 to have higher output. Some suggested to use very sensitive elements (-24db/pa). Mouser and others have them. However upon a suggestion here in this forum I opted using a dynamic element and a Plessey SL6270C, which is not just a preamplifier, it is a compressor. So it delivers about 90mv whatever you shout or you whisper. Average power drastically increased. I have a mil manpack, which I love (my first solid state transceiver) that exactly use this type of Plessey Vogad compressor. My point is that with QRPs a compressor, not a preamplifier or equalizer, is what is really needed. toggle quoted message Show quoted text Il 21/gen/2019 13:53, "Paul Dobosz" <pjdobosz@...> ha scritto: Almost all of the land mobile (Motorola & Harris/GE/Ericsson/MaCom) are dynamic mics that have an internal preamp.? I've had an excellent experience using them in applications that were designed for Electret mics.? They are plentiful and relatively inexpensive in both NOS and used condition on the usual online sites? and are built extremely solidly..? The mobile mics tend to be quite heavy with most having a large piece of heavy steel inside for no other reason than to give them "heft".? I generally remove the weight as I wire the mic up for the radio I'm using it on. 73 - Paul - K8PD
[email protected] All Messages By This Member #64169 Check? this out! I have no clue how well this microphone would work for the uBITX & such, but for <$30.00 it SURE looks impressive!
Daimon Tilley All Messages By This Member #64171 开云体育 I use one with my Yaesu FT891 and it seems fine. Not tried it with the ubitx though. On 21 Jan 2019, at 16:30, twowindsbear via Groups.Io <twowindsbear@...> wrote: toggle quoted message Show quoted text Check? this out! I have no clue how well this microphone would work for the uBITX & such, but for <$30.00 it SURE looks impressive!
Denis #64192 开云体育 I have had good audio reports using my Icom 7300 mic with the BITX40. Denis, WB8SKP On 1/21/2019 10:45 AM, Daimon Tilley wrote: toggle quoted message Show quoted text I use one with my Yaesu FT891 and it seems fine. Not tried it with the ubitx though. On 21 Jan 2019, at 16:30, twowindsbear via Groups.Io <twowindsbear@...> wrote: Check? this out! I have no clue how well this microphone would work for the uBITX & such, but for <$30.00 it SURE looks impressive!

Previous Topic Next Topic