Search found 6 matches

by abrigno1
Sun Jul 02, 2017 5:19 am
Forum: Converting Motorola Equipment to 900MHz Amateur
Topic: External Time Base T5829A for Quantar
Replies: 8
Views: 10225

Re: External Time Base T5829A for Quantar

Voltage divider would work equally well for 5MHz. One issue is the 5829 has 8 BNC connections. I was wondering if there was some malfunction as I don't have the specs for it. Also could the output be reset to some lower value. I would like to know more about the 5829A. It is one of the very few piec...
by abrigno1
Sat Jul 01, 2017 4:44 pm
Forum: Converting Motorola Equipment to 900MHz Amateur
Topic: External Time Base T5829A for Quantar
Replies: 8
Views: 10225

Re: External Time Base T5829A for Quantar

I have a 5829 that is working. Issue is voltage is about 3.5V RMS vs book value of 1 +_>0.5 Seems to be working fine.
by abrigno1
Sat Jun 17, 2017 5:58 pm
Forum: Converting Motorola Equipment to 900MHz Amateur
Topic: External Time Base T5829A for Quantar
Replies: 8
Views: 10225

Re: External Time Base T5829A for Quantar

Closer than I thought. Still taking readings. On a quick check what I saw with a 50 ohm jumper was about 5.2 V RMS. Still little high.

Repeater arrived this afternoon so I will be testing and measuring with actual repeater.

Really appreciate answer. Want to make sure I don't damage repeater.
by abrigno1
Sat Jun 17, 2017 9:29 am
Forum: Converting Motorola Equipment to 900MHz Amateur
Topic: External Time Base T5829A for Quantar
Replies: 8
Views: 10225

External Time Base T5829A for Quantar

Planning to use MOTO External Time Base T5829A on Quantar 900 MHz for Amateur. Have issue. Time base is showing non-sine wave output with voltage of little over 6 V into 1 meg input on high quality Lecroy scope. Quantar docs show external voltage should be 1.0 V(RMS) +/- 0.5V Is this an issue? What ...
by abrigno1
Tue Mar 01, 2011 5:03 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Control head problems with Spectra
Replies: 5
Views: 807

Re: Control head problems with Spectra

Thanks for inputs from all. We had some guys here that were Spectra wizards but they retired and moved and I am trying to learn about them so I can help the hams here. We have about 25-30 Spectras in our 900 MHz community. My exitsting head is a HLN6075C SP07 with a HLN6285A back/connector board. Th...
by abrigno1
Sun Feb 27, 2011 9:51 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Control head problems with Spectra
Replies: 5
Views: 807

Control head problems with Spectra

The head on my spectra faded out slowely and now there is no display. Head works fine does volume mode etc and I can go to correct spot counting beeps. My original head that faded out is a HLN6075C SP07. I have acqired a new HLN6337cChead. When I put it on the radio I get nothing. Not lights sounds ...

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