[Motorola] HT1250 / HT1550

[Eric Lemmon]

Dan,

Here are some default settings for a VHF HT1250.  Except as noted, all are
the same for UHF.

On the Microphone tab of the Radio Configuration menu, set microphone gain
to 25.5 dB and accessory mike gain to 28.5 dB.

For each personality, on the Basic tab, set channel bandwidth to 25 kHz (20
kHz for UHF)

On the Advanced tab, set compression type and expansion type to disabled.
For emphasis selection, select "de-emphasis & pre-emphasis"
RX and TX Reference Frequency should be set at default.

73, Eric Lemmon WB6FLY
 

-----Original Message-----
From: motorola-bounces at mailman.qth.net
[mailto:motorola-bounces at mailman.qth.net] On Behalf Of K0DAN
Sent: Sunday, April 19, 2009 9:49 AM
To: Discussion of equipment manufactured by Motorola
Cc: wb6fly at verizon.net
Subject: Re: [Motorola] HT1250 / HT1550

Eric:

Do you know if there's a standard procedure for setting (or defaults) the 
various audio compression menus? Trial & error seems risky. I assume all 
these variables are there to compensate for add-on audio accessories, 
ambient noise, etc. I have several 1250's, and their audio menu settings are

all over the place, and never changed by me. It'd be nice to standardize 
these, if practical. I think I have manuals on this model but don't recall 
seeing and guidelines for audio defaults/tweaking.

Thanks & regards,

Dan
K0DAN

----- Original Message ----- 
From: "Eric Lemmon" <wb6fly at verizon.net>
To: "'Discussion of equipment manufactured by Motorola'" 
<motorola at mailman.qth.net>
Sent: Saturday, April 18, 2009 7:17 PM
Subject: Re: [Motorola] HT1250 / HT1550


>
> One very common cause of distorted audio is an incorrect setting of the
> bandwidth.  If one radio transmits a 5 kHz signal, any radio set for 2.5 
> kHz
> bandwidth will hear a very distorted  audio.  Check to ensure that all
> radios in your system are programmed for the same bandwidth and audio
> compression.  Also, check to ensure that the radios are programmed to the
> correct frequencies.  If the programming is correct, it is possible that 
> the
> speaker has been damaged.
>
> 73, Eric Lemmon WB6FLY
>
>
> -----Original Message-----
> From: israel1718 at aol.com [mailto:israel1718 at aol.com]
> Sent: Saturday, April 18, 2009 4:55 PM
> To: Eric Lemmon
> Subject: Re: [Motorola] HT1250 / HT1550
>
> Maybe something else is wrong with mine, audio sounds very distorted
> ------Original Message------
> From: Eric Lemmon
> To: israel1718 at aol.com
> To: 'Discussion of equipment manufactured by Motorola'
> Subject: RE: [Motorola] HT1250 / HT1550
> Sent: Apr 18, 2009 19:28
>
> The HT1250 and HT1550 radios do not require tuning.  Both radios are
> designed to operate over the entire band without adjustment.
>
> 73, Eric Lemmon WB6FLY
>
>
> -----Original Message-----
> From: motorola-bounces at mailman.qth.net
> [mailto:motorola-bounces at mailman.qth.net] On Behalf Of israel1718 at aol.com
> Sent: Saturday, April 18, 2009 4:06 PM
> To: Motorola at mailman.qth.net
> Subject: [Motorola] HT1250 / HT1550
>
> Anyone has any information or step by step instructions on what needs to 
> be
> done to properly tune a ht1250 and ht1550 radio ?
> What values need to be looked at and how.
> Thanks
> Sent from my BlackBerryR smartphone with SprintSpeed
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