Spectra 900Mhz Mobile Questions

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Sturm4299
Posts: 1
Joined: Sun May 19, 2002 2:19 pm

Spectra 900Mhz Mobile Questions

Post by Sturm4299 »

Currently I recieved a Spectra Mobile in the 900mhz. Unfortunatly it didn't come with a mic and such, but it does power up successfully and seems to work. Currently I have a HMN3596A and a HMN1056D mics lying around but are RJ45 based plugs. My first question would be is there a way to wire these for this mobile? From the decoding section on here its a 30w 900mhz Trunked Smartnet capable radio. I am unsure what A# it is, but from pictures it closely resembles the A7. If anyone has some information on the pin-outs for the mics and possibly a conversion to the Spectra's mic jack, that would be greatly appreciated.

My second question is until the programming cable and rib box arrive, currently I have the RSS for Spectra Mobile Radio, version is R06.00.05 . will this work fine in programming this unit?
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EM-01
Posts: 156
Joined: Mon May 13, 2002 6:49 am

Post by EM-01 »

Hello,

Did you ever get the info on this you requested, I need it badly also.

Thanks
-Fred L. McGuire Jr.-
Okmulgee County SkyWarn Association
Okmulgee County Sheriff's Office
Okmulgee, Oklahoma
KD5FMU
fred.mcguire.jr@gmail.com
RKG
Posts: 2629
Joined: Mon Dec 10, 2001 4:00 pm

Post by RKG »

The Spectra mike jack, viewed from the front of the control head, has 10 pins, numbered thus:



1 3 5 7 9

2 4 6 8 10

where pins 5 and 6 are slightly above the line of the others.

The pin assignments are listed thus:

1 GND
2 S'NET/WE
3 HUB
4 SWB+
5 DIG GND
6 PTT
7 MIC Lo
8 MIC Hi
9 S'NET KID
10 S'NET KEY

I BELIEVE that only pins 1, 3, 4, 6, 7 and 8 are used by the standard mike, but I cannot find a schematic for the mike.
techie
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Posts: 400
Joined: Thu Nov 01, 2001 4:00 pm

Post by techie »

The only manual page I have is for a HMN1052A, which uses pins:

3 (BLU) (HUB)
5 (WHT) (DIG GND)
6 (GRN) (PTT)
7 (BLK) (MIC LO)
8 (RED) (MIC HI)

the PTT switch (Normally Open) closes 5+6 (PTT/DIG GND), and
8 + mic (MIC HI).

MIC LO is tied to the ground bus within the mic.
-- Welcome My Son, Welcome To The Machine --
Bob Vaughan | techie@tantivy.net
AF6RR | P.O.Box 19792, Stanford, Ca 94309
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Cowthief
Fail 01/90
Posts: 1900
Joined: Wed Sep 05, 2001 4:00 pm

Spectra

Post by Cowthief »

Hello.

The spectra mic's go on ebay for around $15 tops.
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