[MODS] CRE 8900 / ALINCO DR135DX - 9 mods

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Borys
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[MODS] CRE 8900 / ALINCO DR135DX - 9 mods

Postby Borys » 01 Aug 2016, 07:37

Hello anyone, Im new here.

I would like create this topic for all owners CRE 8900 / Alinco DR135DX.
In Poland one of CB service offer this modifications (translation from Polish)

1/ fine-tuning of the track receiver / transmitter
2/ installation of quartz filter and IF 10.695KNKTR - improving the selectivity / (Im not sure that I can buy
this filter - Borys)
3/ installation of an active filter IF II Channel Guard - to improve selectivity
4/ improving the tone of the narrowed down receiver - more treble
5/ improving modulation AM - louder broadcasting
6/ adding a treble in a transmission path - the more acute (louder?) modulation
7/ change the functions CLARIFIER in emissions USB / LSB - not muted reception when tuning
8/ Calibration indicator S / RF-METER
9/ Digital measurement system calibration SWR - more reliable measurement at higher transmission power

I wish to make this topic a know-how for anyone who want do this mods.
But, for now, I know only how to mod a CLARIFIER and tune RX/TX

1/ fine-tuning of the track receiver / transmitter

It can happen that your radio is out of tune. This happens when the frequency on the display does not match the frequency of transmission or reception.
Set the example. 26.425.00 MHz and our respondents, who are also on this frequency can not hear us, and we hear them with great difficulty. Typically helped here knob clarifier, which tune the 'ear' to the frequency of our interlocutor. We had to set the example. 26.423.60 MHz to be heard at 26.425.00 MHz. So what to do to align the frequency display with real?

1. Press the "FUNC" button and holding it turn on the radio
2. Then press one after the other buttons RB, AN / ANL, DW

Radio came just in adjustment mode, and the display show the message SHOULD BFXXX (where XXX is the numeric designation of the setting, not the frequency). Using a dial channels and clarifier introduce the desired value.

If necessary, adjustment of the frequency shift should be performed separately for each modulation mode, rotating the selector dial modulation.
To save the new settings and exit the adjustment mode, turn off the radio.

After switching off the check results of our correction on the frequency meter or talking with someone about whom we know that he has properly tuning the radio. If necessary re-enter the adjustment mode.

Before you make any changes in the value of the parameters save them. Throughout this process, remember to CB radio was at room temperature, because it affects the correct tuning.

TIPS:
CW. Turn the CLARIFIER knob until frequency meter indicates 10.6950 MHz.
FM / AM. Turn the CLARIFIER knob until frequency meter indicates 10.6950 MHz.
USB. Turn the CLARIFIER knob until frequency meter indicates 10.6925 MHz.
LSB. Turn the CLARIFIER knob until frequency meter indicates 10.6975 MHz.

Note: when mistakenly introduced various parameters without storing them in advance is not possible to call them back using the RESET function. The RESET function does not change the parameters of the service menu.
Always save all the parameters of the radio before you change anything

2/ installation of quartz filter and IF 10.695KNKTR - improving the selectivity / (Im not sure that I can buy this filter - Borys)
This mod is not full described yet - if you know how do it, please tell us!

3/ installation of an active filter IF II Channel Guard - to improve selectivity
This mod is not full described yet - if you know how do it, please tell us!

4/ improving the tone of the narrowed down receiver - /more treble
This mod is not full described yet - if you know how do it, please tell us!

5/ improving modulation AM - louder broadcasting
This mod is not full described yet - if you know how do it, please tell us!

6/ adding a treble in a transmission path - the more acute (louder?) modulation
This mod is not full described yet - if you know how do it, please tell us!

7/ change the functions CLARIFIER in emissions USB / LSB - not muted reception when tuning
In my radio I used Hi-Cut button (which has been permanently disabled) to disable mute. Now I am enclosing Hi-Cut I can safely tweak and change channels.
Minus it is that at the moment does not work SQ, ASQ ie, the RX is always enabled. Just off the Hi-Cut and back to normal. Additionally, you can now attach a scan channels or DW, and at the same time be listening when changing channels in

HOW DO IT?
Disconnect the collector of the control transistor Hi-Cut and connect it to the base of the transistor mute.
Image

8/ Calibration indicator S / RF-METER
This mod is not full described yet - if you know how do it, please tell us!
9/ digital measurement system calibration SWR - more reliable measurement at higher transmission power
This mod is not full described yet - if you know how do it, please tell us!

Could you help with rest of mods? I'll edit first post if anyone post an instruction

simonthewizard
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Re: [MODS] CRE 8900 / ALINCO DR135DX - 9 mods

Postby simonthewizard » 01 Aug 2016, 17:05

This service is carried out by www.konektor5000.pl who also "tune" Densei EC2002 microphones which make excellent audio on Qixiang radios.

Regards
Simon

evken
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Re: [MODS] CRE 8900 / ALINCO DR135DX - 9 mods

Postby evken » 04 Jan 2017, 16:43

Thanks for posting this topic. I've purchased a used Alinco DX-10 which I'm trying to get on frequency on SSB (i've got the lower working but still having problems on upper). I have a few questions Do you think the usb cable from the stryker 955 would work on this unit? Do you have a link for software the only one I found will only will use com port number 3? You wouldn't happen to have a link to a service manual?
Thanks for your time and Happy New Year! Ken

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dt307
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Re: [MODS] CRE 8900 / ALINCO DR135DX - 9 mods

Postby dt307 » 04 Jan 2017, 20:49

evken wrote:Thanks for posting this topic. I've purchased a used Alinco DX-10 which I'm trying to get on frequency on SSB (i've got the lower working but still having problems on upper). I have a few questions Do you think the usb cable from the stryker 955 would work on this unit? Do you have a link for software the only one I found will only will use com port number 3? You wouldn't happen to have a link to a service manual?
Thanks for your time and Happy New Year! Ken


isnt it the same as an anyclone? go in the super secret menu and change the bfo ect (make a note of the settings because if you screw it up a reset wont fix it )
163dt307-chris




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Re: [MODS] CRE 8900 / ALINCO DR135DX - 9 mods

Postby Admiral » 04 Jan 2017, 21:34

If you need to modify a brand new radio then you bought the wrong radio.
Winner of the 2017 IBTL 'Summer Sizzler' competition, and holder of the TM1 IBTL Golden Willy Trophy.

evken
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Re: [MODS] CRE 8900 / ALINCO DR135DX - 9 mods

Postby evken » 06 Jan 2017, 08:13

Thanks dt307 Chris, but not sure what a anyclone is. I have done the frequency offset in the service menu fixed the lower but upper may need an internal adjustment I'm guessing. Thanks again, Ken

ch25
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Re: [MODS] CRE 8900 / ALINCO DR135DX - 9 mods

Postby ch25 » 06 Jan 2017, 12:48

Admiral wrote:If you need to modify a brand new radio then you bought the wrong radio.
No less, no more.

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Re: [MODS] CRE 8900 / ALINCO DR135DX - 9 mods

Postby astradyne » 08 Jan 2017, 20:16

Admiral wrote:If you need to modify a brand new radio then you bought the wrong radio.


This.
Never, ever, ever....bloody anything ever!

Far too many radio's to list here. But I do own a legal one...

Sadelta
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Re: [MODS] CRE 8900 / ALINCO DR135DX - 9 mods

Postby Sadelta » 02 Feb 2017, 18:27

not muted reception when tuning - Can this be done in AM/FM?


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