I've seen complaints about (and have experienced!) some poor quality HT1550 receive audio, and did a little experimenting. I found that the audio quality improves slightly when using a P1225 metal baffle (the one shaped like a Tele-Path ad asterisk) in front of the speaker. The audio also sounds more readable when the original speaker is replaced with a 50-85925M02 speaker from an old RMN5055 speaker mic.
Anybody have any other tricks they've used?
HT1550 receive audio quality
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- MSS-Dave
- Posts: 770
- Joined: Mon Jun 30, 2003 6:02 pm
- What radios do you own?: XTL5K, NX300, PD782, Spark Gap
Re: HT1550 receive audio quality
Make sure you don't have narrowband set on a wideband channel and vicey-versey. If you are on narrowband AND have the the radio programmed as such, check your Xpand (compression/limiter) settings if you have it enabled.
Had a HT1550 for awhile, used it on UHF LTR and conventional. Sounded OK to me until I installed a narrowband system and had to goof with levels for awhile....
Dave
Had a HT1550 for awhile, used it on UHF LTR and conventional. Sounded OK to me until I installed a narrowband system and had to goof with levels for awhile....
Dave
Re: HT1550 receive audio quality
Part of the reason I got rid of my 1550s quite a few years back was thanks to the crappy audio. Now I have Astro 25 gear, which can't make more than about 4.5KHz deviation on an analog channel without pushing the digital dev out of spec (grumble).
Re: HT1550 receive audio quality
I believe 'low level expansion' was the default 25KHz setting under the 'advanced' tab in the personalities. Depending on what radios you listen to, it can make things worse. Best to turn it off & see if it helps.
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Welcome to the /\/\achine.
Welcome to the /\/\achine.
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- Joined: Wed Aug 26, 2009 11:22 am
Re: HT1550 receive audio quality
You definitely want to check the Compression, Expansion Type & Emphasis Selection for each personality in the Advanced tab.
Its always the first place I go when the audio isn't normal and it fixes the problem
Its always the first place I go when the audio isn't normal and it fixes the problem
- HLA
- Posts: 2334
- Joined: Mon Jul 11, 2005 8:15 pm
- What radios do you own?: HT1550's, X9000's, CDM1550's
Re: HT1550 receive audio quality
mine always sounded bad too with just the radio, and with the speaker mic it was just as bad so i made my speaker mic, i used the cable from the 1550 and the head from an ht1000 and it really improved
HLA
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I never check PM's so don't bother, just email me.
I won't reply to a hotmail, gmail, aol or any other generic free address, if you want me to reply use a real address.
STOP ASKING ME FOR SOFTWARE OR FIRMWARE, I JUST FORWARD ALL OF THE REQUESTS TO THE MODERATORS
Re: HT1550 receive audio quality
My HT1550XLS is one of the last one's made, it has been great! It is a r5.14 firmware, it is just as good as my HT1250.
Just my 2 cents
Just my 2 cents
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My collection;
XTS5000 VHF FPP,XTS3000 VHF M1&M3,XTVA,XTS2500 UHF Q FPP,Astro Spectra"s W3 VHF,W9 VHF,W7 800,HT1250 35-50,XPR4500 Q,2 CDM1550LS+ VHF 160ch,CDM1550 X 160ch VHF 25w,MAXTRAC 42-50 32ch,CDM1250 42-54
My collection;
XTS5000 VHF FPP,XTS3000 VHF M1&M3,XTVA,XTS2500 UHF Q FPP,Astro Spectra"s W3 VHF,W9 VHF,W7 800,HT1250 35-50,XPR4500 Q,2 CDM1550LS+ VHF 160ch,CDM1550 X 160ch VHF 25w,MAXTRAC 42-50 32ch,CDM1250 42-54