[1000mp] Emergency Radio, Earbuds & MP 02/17/18

Mon Feb 19 12:32:18 EST 2018

Dear Bill,

Please accept  my apology, I certainly did not mean to flame you, in the
future when I see a post that causes me to raise an eyebrow I will not be
so quick to respond without considering how the other person will feel if I
am wrong in my assumption.

Obviously you are a knowledgeable Ham operator who was simply passing on
some info that he felt would be useful to the group. Also thanks for
attaching the excellent article where you discuss speaker vs headphone
options, I am constantly looking for an edge when it comes to always
improving audio on my MK V Field so appreciate your valuable impute her.

By the way, you mentioned the 1.8khz filter and am wondering about a couple
of things, first, are these yaesu or the Inrad? Next, are you using the
1.8khz in both 2nd and 3rd IFs, or are you cascading them with either a
2khz yaesu or an Inrad 2.1khz   or perhaps one of the factory filters, and
finally if a person can only afford a couple of filters, am I better to go
with the 1.8khz vs the either 2khz or 2.1khz(Inrad)?

So thanks for your help here, and once again please forgive my
Inappropriate post to you, I should have known better.

very best regards,

Rick Ve1rnm

On Sat, Feb 17, 2018 at 4:58 PM WD8ARZ <wd8arz at comcast.net> wrote:

> Rick, I use my MP all the time .... I use headphones and earphones with
> it all the time and it helps intelligibility ... using a separate radio
> for the local A.M. radio stations leaves the MP free for the ham and
> shortwave bands ....  Good tips and items for shortwave and ham radio
> are getting more scarce every year. Also I SHARE frequently and have
> been a member of this list for a very long time ... why do you go out of
> your way to be so negative when we have enough of that already? ....
> feel free to put my email address in your email block list.  If you look
> up the five rules for the reason that the American ham radio system
> exists, it is all about supporting communications for others ... no
> where does it refer to us as a hobby ... Communications is about
> supporting and being informed so that support is productive ... you darn
> well should know what is going on in your local area and that takes the
> am/fm radio I discussed. That way you can be prepared for the situation
> in your area and not depend on others to come to you for help .... and
> spare rechargeable battery packs .... just like the way I operate my
> mobile and base stations ... on separate sealed gel batteries not part
> of any other system, not dependent on commercial power.
>
> Speaking of ham and the mp, love the 1.8kHz ssb filter for when the
> bands are crowded ... very effective and reducing the noise / assorted
> signals as much as possible helps the intelligibility of the voice you
> want to copy and understand. See below ... You can easily substitute
> earplugs with headphones ... With Regards, 73 from Bill WD8ARZ ..... out
>
> ------------------------------------------------------------------------
> -------- Forwarded Message --------
> Subject:        [FT-1000MP] Audio - Main/Sub Rx External Speakers vs
> Headphones?
> Date:   Thu, 07 May 2015 10:14:27 -0400
> From:   WD8ARZ wd8arz at ix.netcom.com [FT-1000MP] <FT-1000MP at yahoogroups.com
> >
> Reply-To:       FT-1000MP at yahoogroups.com
>
>
>
> Audio - Main/Sub Rx External Speakers vs Headphones?
>
> ================================================
>
> I like what the FT-1000MP offers as a range of user options when it comes
> to
> speaker and headphone operation combinations. There are four pathways to
> get
> audio out of the MP, and three ways to play the main and sub receiver audio
> in combination with each other. Then there are the effects afforded by
> choosing the various modes, filters, dsp, if shift, width shift, and notch
> filter combinations between the receivers.
>
> Audio Paths:
>
> 1) Internal Speaker - Ok for portable and small table space use, but poorer
> over all choice.
>
> 2) External Speaker - Page 19/20 in owners manual item 13. Much better when
> using a communications quality speaker, such as the old heath kit HS-1661
> that tailors the audio to about 200-4000 Hz...... the communications range
> needed for voice communications - this also helps reduce storm static ear
> overload. Both receiver audios feed this output source at the same time.
>
> 3) STEREO headphones that matches the impedance for the front panel output
> jack. This choice gives your ear/brain function the best possible operation
> for diversity and spatial effects. In this mode you can achieve the best
> 'sorting' of audio information be it the same or different signals from the
> two receivers. When tuned to the same signal, the brain provides the best
> processing of mixing, separating, and sorting for audio information. Room
> noise is also reduced or easier to sort this way too. Use full stereo
> separation in the menu options, and try different filters, dsp settings and
> other controls to archive maximum spatial separation effects.
> This choice is the best choice for sorting out weak signals or situations
> where noise and other signals are a problem. Headphones and
> diversity/spatial operations is much more effective through the headphones
> than external speakers...... and dont forget you can still use the external
> mono speaker,  or the built in speaker for center channel effects as
> well...... a the same time.
>
> The dynamic range for the audio from the headphone jack is also better
> configured here to protect your ears from sudden changes in audio output
> when you have the volume up for a weak audio output and something loud
> opens
> up on you - this is due to a resistor divider network employed prior to the
> jack........ and thats why it is not recommended to use headphones through
> the speaker output jack where this protection is not available.
>
> 4) STEREO Speaker output jack on the rear panel - Page 19/20 in owners
> manual item 14. Here you should use an external amplifier feeding matching
> speakers positioned in such away to have you in the direct center. The
> output here is also a fixed volume output that has good dynamic range and
> is
> independent of the volume control on the front panel. Between the external
> amplifier volume and balance controls, and the internal menu settings of
> the
> MP, terrific performance can be had for a wide range of operations......
> except for the best of the diversity and spatial techniques where improved
> operation can be achieved using headphones. I like listening to shortwave
> stations and music this way.... signal to noise ratio allowing of course.
>
> Audio Combinations thru Menu 4-8:
>
> 1) Each receiver audio feeds both audio outputs. - Mono
> 2) Each receiver feeding separate audio outputs at normal output, and at
> lower audio levels feeds the other audio output at the same time. - Stereo
> 1
> 3) Full separate audio. Main receiver to one audio output, and sub receiver
> to another audio output, no mixing.
>
> When it comes to sound, what type and how it is perceived varies
> considerably with how it is delivered. What method I use depends on the
> signal to noise ratio and type of audio I am digging into. The above
> options
> for the FT-1000MP provide all the possible combinations I am aware of......
> including using external Dsp in the audio chain. I find myself using the
> headphones most of the time to maximize the stereo effect when needing to
> sort audio..... but I much prefer the external audio amp and speakers for
> full fidelity audio when using strong or clear signals with wide to no
> filters selections.
>
> Good luck, and please experiment. You will be very surprised at the effects
> you can get having both receivers tuned to the same signal at the same time
> using different modes (am, lsb, usb), filter widths, dsp on in different
> settings, if shift, width shift, notch filter and feeding the same or
> different audio outputs. During the best of operations I hear the band
> noise
> in the far back of my head spread out and muted, low audio frequency audio
> in my left ear, and higher audio frequency in my right ear, and even other
> distracting sounds in different 'vectors' that dont cover the targeted
> audio. Try it you will like it......... I bet you wont be satisfied with
> one
> audio feed in the future afterwards!
>
> 73 from Bill - WD8ARZ
> Regards, 73 from Bill WD8ARZ ..... out
>
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