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Search found 144 matches

by jistabout
Thu Jan 09, 2014 11:25 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: Motorola R2600A versus HP8924C
Replies: 25
Views: 4948

Re: Motorola R2600A versus HP8924C

8924C, definitely. Others have pointed out the main reasons but I will add that I have been using an 8924C for about 2 years now and I just haven't seen much else which comes close in terms of performance & versatility for the money. These were $30k lab grade instruments when new and it shows. T...
by jistabout
Sat Sep 21, 2013 9:42 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Can use J4 on R.I.C.K with an external controller?
Replies: 7
Views: 1401

Re: Can use J4 on R.I.C.K with an external controller?

The controller is a PC with custom one-off software and has also been running trouble free for many years. I'd like to hear more about this... I promised to tell more about computer control of the repeater when I had time so here goes :). The computer is interfaced to the radios via J4 on the R.I.C...
by jistabout
Tue Aug 20, 2013 4:36 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Can use J4 on R.I.C.K with an external controller?
Replies: 7
Views: 1401

Re: Can use J4 on R.I.C.K with an external controller?

d119 wrote:
jistabout wrote:The controller is a PC with custom one-off software and has also been running trouble free for many years.


I'd like to hear more about this...



I'll be happy to provide details as soon as I get time to sit here & do so, likely within the next few days :)
by jistabout
Wed Aug 14, 2013 10:07 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Can use J4 on R.I.C.K with an external controller?
Replies: 7
Views: 1401

Re: Can use J4 on R.I.C.K with an external controller?

Okay, got it working :). Inside the RICK, turn S2-7 ON and S2-6 OFF. The RX audio at J4 pin #11 is gated audio and so is switched with the incoming signal. Seems to work fine although I would have preferred unsquelched audio. The audio source is still from the RX radio discriminator so no worries th...
by jistabout
Mon Aug 12, 2013 10:35 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Can use J4 on R.I.C.K with an external controller?
Replies: 7
Views: 1401

Re: Can use J4 on R.I.C.K with an external controller?

Thanks! I'll be sure to disable the other audio path.
by jistabout
Sat Aug 10, 2013 4:52 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Can use J4 on R.I.C.K with an external controller?
Replies: 7
Views: 1401

Can use J4 on R.I.C.K with an external controller?

Hi everyone! I'm setting up a UHF GR300. This particular unit is totally original with 2 GM300 radios and a simple RICK controller. I wish to use a different controller but want the ability to return to original if needed. I have the GR300 setup/service manual, and if I understand it correctly then ...
by jistabout
Sun Aug 09, 2009 9:20 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: Moto R2014D(R2001D) Generates BAD RF Interference!
Replies: 6
Views: 609

Re: Moto R2014D(R2001D) Generates BAD RF Interference!

Sorry so long to get back to this. Thanks everyone, I haven't looked into this problem yet but if I do find the cause then I'll post it here for future reference for others.....

- Darrell
by jistabout
Thu Jul 02, 2009 10:42 am
Forum: Test Equipment & RF Equipment Alignment
Topic: Let me introduce Rob....
Replies: 3
Views: 545

Re: Let me introduce Rob....

Hi Rob! *shakes hand*, thanks in advance for your time & expertise when needed :).
by jistabout
Thu Jul 02, 2009 10:32 am
Forum: Test Equipment & RF Equipment Alignment
Topic: Moto R2014D(R2001D) Generates BAD RF Interference!
Replies: 6
Views: 609

Moto R2014D(R2001D) Generates BAD RF Interference!

Hi everyone! My beloved Motorola R2014D is generating spurious RF signals. Here's an example: With the R2014D turned on and in monitor mode - not generate - a nearby receiver (2-3 feet away) which is tuned to most any frequency from 500kc to about 20mhz will pick up spurs from the motorola. It seems...
by jistabout
Tue May 19, 2009 11:10 am
Forum: Test Equipment & RF Equipment Alignment
Topic: Motorola R-2001D - Is this normal?
Replies: 4
Views: 526

Re: Motorola R-2001D - Is this normal?

My two bits worth: Should you be concerned is another matter. .....Unless there is actually a problem with operation on your frequencies of interest, I would leave it alone. It is like driving my antique Mercedes, no it is not supposed to make that noise, but it has made that noise for the last 25 ...
by jistabout
Thu May 14, 2009 6:59 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: Motorola R-2001D - Is this normal?
Replies: 4
Views: 526

Re: Motorola R-2001D - Is this normal?

Thanks Dave, I had hoped that you or Bernie would see this. I bought the manuals on CD and so will troubleshoot.

On a sidenote, someone here on Batlabs was asking about the quality of the R-2001D CD manuals from eBay awhile back. The quality is excellent.
by jistabout
Tue May 12, 2009 8:47 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: Motorola R-2001D - Is this normal?
Replies: 4
Views: 526

Motorola R-2001D - Is this normal?

Hi everyone! My R-2014D(R-2001D) service monitor seems like it takes the VCO (or something) a few extra microseconds before it locks when changing frequencies, mostly in generate mode. Also, when going from receive to generate mode, there is a pronounced "chirp" just before everything lock...
by jistabout
Thu Apr 16, 2009 12:32 am
Forum: Test Equipment & RF Equipment Alignment
Topic: Do you [dial up FM broadcast on your service monitor]?
Replies: 17
Views: 1269

Re: Do you do this?

We did at the depot all the time. One of the techs (wb9sfg) used the R2001 in the 10 meter band to QSL from Schaumburg to Phoenix. Thats too cool :). I can see how it could be done though, with a good antenna. Might try it myself some day..... That's one of the first tests and milestones of a servi...
by jistabout
Tue Apr 14, 2009 10:33 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: Do you [dial up FM broadcast on your service monitor]?
Replies: 17
Views: 1269

Do you [dial up FM broadcast on your service monitor]?

Just curious. My wife and I were discussing this because she works in broadcasting. On your service bench, when not being used to service radios, do you tune your service monitor to your favorite fm or am radio station and listen while working? Thought this might be a good place to ask 'cause lots o...
by jistabout
Mon Mar 30, 2009 11:09 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: R-2014D(R-2001D) Low Generator Output?
Replies: 3
Views: 440

Re: R-2014D(R-2001D) Low Generator Output?

Dave, you were right on the nose. Thank you! Not sure I understand why it was done that way though.....
by jistabout
Mon Mar 30, 2009 8:17 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: R-2014D(R-2001D) Low Generator Output?
Replies: 3
Views: 440

R-2014D(R-2001D) Low Generator Output?

Hi everyone! I did a forum search for this before posting, no luck. My recently acquired Motorola R-2014D service monitor has low output in generator mode. Max output is -17 dbm or thereabouts according to the screen readout. Should be more like +13 to + 15 dbm I think. Since I don't yet have any ma...
by jistabout
Tue Mar 24, 2009 8:46 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: Motorola R2014D/R2001D Question
Replies: 4
Views: 525

Re: Motorola R2014D/R2001D Question

Thank you guys. I found everything. Unit works great except that the CRT is somewhat dim, but I found & read Bernie's posts about using an oscilloscope if needed...
by jistabout
Tue Mar 24, 2009 1:29 am
Forum: Test Equipment & RF Equipment Alignment
Topic: Motorola R2014D/R2001D Question
Replies: 4
Views: 525

Motorola R2014D/R2001D Question

Hi everyone! I just acquired an R2001D(R2014D). How does one access the Special Functions menu on this unit? I see the codes listed in the lid but how to use them? I also do not see DTMF in the "Modulation" section on the front panel, and this unit is supposed to have DTMF encode/decode ac...
by jistabout
Thu Sep 18, 2008 11:40 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Multi-XFL Radio
Replies: 7
Views: 679

Re: Multi-XFL Radio

Well now I haven't heard of one of these in a long, long time. What you have there is a portable 25w VHF repeater/base station which was built by the Motorola Special Products Group (thus the "SP" model #). These were mainly used in forestry applications as lookout repeater/base stations. ...
by jistabout
Tue Aug 14, 2007 8:34 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Moto wireline control board
Replies: 1
Views: 306

Moto wireline control board

Hi everyone! I'm looking for information on a certain Motorola wireline control option board. I found 2 numbers printed on the solder side of the board: TRN6744A (or possibly TKN6744A) and TCN1222A. This board is inside a UHF Mitrek consolette base, and I have the matching desktop control unit also....
by jistabout
Mon Jul 09, 2007 10:04 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Unidentified RIB-to-radio cable?
Replies: 4
Views: 459

Re: Unidentified RIB-to-radio cable?

Okay, thank you guys. Might it also work with the Maratrac and/or Radius etc. mobiles? My use would be to program Maratracs....
by jistabout
Mon Jul 09, 2007 2:38 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Unidentified RIB-to-radio cable?
Replies: 4
Views: 459

Unidentified RIB-to-radio cable?

Hi everyone! I have here what looks to be a RIB-to-radio programming cable which plugs into a Motorola RIB box, but I can't identify what it works with. It came along with an RLN4008B RIB which I bought from a friend, and he also knows nothing about it. As can be seen in the photo, it has a 25-pin c...
by jistabout
Tue May 22, 2007 12:56 am
Forum: Base Stations, Repeaters, General Infrastructure
Topic: Mitrek as repeater - cooling?
Replies: 19
Views: 1861

Not to revive an old thread, but just wondering - A GE Mastr II 100w mobile radio can operate (per the manual) at 100% transmit duty cycle at reduced (50% or so) power without additional cooling, and yet a 100w Motorola Mitrek mobile cannot. How come? The GE PA looks to be similar. Heatsinks are abo...
by jistabout
Fri Jan 19, 2007 10:05 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Fans on your radios...which direction to blow the air?
Replies: 13
Views: 1230

Some of us were discussing this very thing awhile back.........



http://batboard.batlabs.com/viewtopic.php?t=37682&highlight=mitrek+cooling
by jistabout
Fri Jan 19, 2007 2:25 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: I have a radioshack power meter question
Replies: 4
Views: 405

Nope. But I regularly use a "cheap" RS meter similar to this in my ham station on HF and it displays reflected power just as well as any other meter which I've seen within its intended frequency range. I have also verified its forward power reading accuracy against a Bird 43 both into a du...
by jistabout
Mon Jan 15, 2007 2:07 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: why i like motorola radios so much
Replies: 27
Views: 1836

I once read a story somewhere on the 'net about a guy who had road-rage due to someone in the vehicle ahead of his who pi**ed him off while at an intersection. So in his anger, he reached down beside himself in the seat, grabbed the first heavy object he could find, rolled down his window, and threw...
by jistabout
Sat Dec 23, 2006 4:47 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: GP68 UHF - Receiver is deaf!
Replies: 0
Views: 182

GP68 UHF - Receiver is deaf!

Greetings Earthlings..... I have here a UHF GP68 portable which was working fine and then I sold it on eBay several months ago and the new owner said that the receiver was quite insensitive. Said he took it to a local radio shop and they told him that the transmitter was fine and at rated power but ...
by jistabout
Tue Aug 08, 2006 12:57 pm
Forum: Base Stations, Repeaters, General Infrastructure
Topic: Kenwood TKR-750 or Vertex/Standard VXR-7000 for ham use?
Replies: 15
Views: 2010

I have a friend who owns/operates 7 ham repeaters in the local area. He recently was evaluating both the TKR-750 and the VXR-7000 to replace one of his machines. After about a month of research, he finally chose the VXR-7000, and added a Zetron controller to it so he could have remote-programming ca...
by jistabout
Mon Aug 07, 2006 6:32 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Maratrac Control head?
Replies: 4
Views: 406

Hi, I'm looking for a Maratrac 99ch. control head + cables.
Would you like to sell/trade? Thanks.....

- Darrell
by jistabout
Fri Jul 28, 2006 6:53 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: GP68 HOT on transmit
Replies: 7
Views: 451

Ok thanks guys. I suppose that I can use the extra heat to warm my hands this winter :).......

Another but unrelated question: Was the AP73 marketed AS a ham radio? In the USA? Reason I'm asking is I don't recall ever seeing any ads for it anywhere.......
by jistabout
Fri Jul 28, 2006 4:30 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: GP68 HOT on transmit
Replies: 7
Views: 451

Update: I just tried it with a stock PMNN4001C battery, same result.....
by jistabout
Fri Jul 28, 2006 3:43 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: GP68 HOT on transmit
Replies: 7
Views: 451

GP68 HOT on transmit

Hi everyone, I'm a new UHF GP68 owner. The back of this particular unit gets very hot during transmit, after about 30sec. or so of transmitting. during a conversation it will heat quite hot, even on low power. If it helps, I'm using an aftermarket large battery but the labels are gone from the batte...
by jistabout
Mon Jul 24, 2006 10:26 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Another GP300 programming problem
Replies: 6
Views: 651

Check the port settings in the RSS. Mine (for some strange reason) defaulted to COM2 rather than COM1. About drove me nuts because it was so simple that I kept overlooking it. Showed the same symptoms which you describe.
by jistabout
Thu Jul 20, 2006 3:03 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: K4WTF - Needs your Prayers and your Support
Replies: 16
Views: 3171

I see that its been awhile.........Any update on this?
by jistabout
Mon Mar 06, 2006 3:05 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: LAPD trying to buy new portables....
Replies: 14
Views: 1499

Hey Jennifer how are you? KA7BTV here........

Dan's probably right about those Sabers...........
by jistabout
Tue Feb 14, 2006 2:37 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: GP350 DC Power Problem....
Replies: 3
Views: 283

Think mabye Will found the problem. I cleaned the DC contacts on the main board as he suggested and so far so good..........
by jistabout
Sun Feb 12, 2006 10:11 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: GP350 DC Power Problem....
Replies: 3
Views: 283

GP350 DC Power Problem....

Hi Everyone! I have a GP350 which I use every day and it has a problem. The unit loses DC power and then re-inits whenever I move the case a certain way. Sometimes it will occur several times within a few seconds. I'm afraid that it might burn something out due to repeating surge currents or somethi...
by jistabout
Tue Feb 07, 2006 11:05 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Interesting modified Motorola radios
Replies: 10
Views: 1584

As far as I know, I was the originator of the Mitrek mod which uses techniques similar to the Echo-Fox mods, but using "N" connectors instead, with the rx connector replacing the Lock, etc. An article by Mike Morris on Repeater-Builder has a pic of my original modded radio (from 6-7yrs. ago) and a d...
by jistabout
Sun Oct 16, 2005 1:03 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Duplexer Tuning Equipment???
Replies: 24
Views: 5249

I use an HP 8640B signal generator, an RF Voltmeter, a 0 to 100db step attenuator, and various receivers with signal strength meters. Seems to work fine.
by jistabout
Fri Oct 07, 2005 7:41 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Maratrac Intermittent tx
Replies: 4
Views: 390

I had a VHF-HI Maratrac that would always turn on the xmit indicator but not always transmit. Turned out to be a bad antenna relay......
by jistabout
Mon Oct 03, 2005 7:14 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: GP350 VHF problem
Replies: 2
Views: 340

Perhaps channel 15 is programmed as the SCAN channel?
by jistabout
Tue Aug 16, 2005 9:56 am
Forum: Base Stations, Repeaters, General Infrastructure
Topic: Motorola C64RXB3106
Replies: 2
Views: 321

Motorola C64RXB3106

Hi, this is a Micor repeater model C64RXB3106. Can someone tell me what band it is? VHF or UHF? Thanks.

- Darrell
by jistabout
Wed Aug 10, 2005 1:36 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Maratrac channel scan question
Replies: 13
Views: 662

FYI, in my version of RSS (5.00.00g) I can't find anything anywhere regarding talkback but it does seem to work with the HUB....
by jistabout
Wed Aug 10, 2005 1:32 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Maratrac channel scan question
Replies: 13
Views: 662

Bat2way, you are right on the money. I programmed the HUB to stop scan and it does stop on the active channel. In my Maratrac it transmits on that channel also. Thanks again!
by jistabout
Tue Aug 09, 2005 9:39 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: UHF Radius Transmit Dies
Replies: 13
Views: 915

Hey Bob, I know its been almost 2 years, but did you ever get this figured out? If so, what was the problem? Just curious......
by jistabout
Mon Aug 08, 2005 12:23 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Maratrac channel scan question
Replies: 13
Views: 662

Cool mon, thanks. I'm thinking that it might not be too hard to implement a stay-on-last-channel function, perhaps by reading the state of the 87K36 shift register chip inside the control head, and having it hold that state when scan is disabled, or something along those lines........ Anyway, just t...
by jistabout
Mon Aug 08, 2005 9:23 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Maratrac channel scan question
Replies: 13
Views: 662

Maratrac channel scan question

Hi everyone, I did a search and couldn't find info on this particular question so here goes. Can a Maratrac with an A7 head be set up to stay on the channel on which scanning stops by pushing a button on the control head? Sort of like talkback, but more like a conventional scanner? For example, say ...
by jistabout
Sun Aug 07, 2005 11:44 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Maratrac VHF rf board pinout question
Replies: 5
Views: 411

Also, drive power is quite small - 1 watt or less. The Maratrac PA is quite similar to the Mitrek PA.
by jistabout
Sun Aug 07, 2005 11:41 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Maratrac VHF rf board pinout question
Replies: 5
Views: 411

From the Maratrac manual: Green = Temp Sense Hi Orange = Current Sense Lo Brown = Temp Sense Lo Violet = A+ Blue = Drive Limit Yellow = A- ------------------ You'll need to "fool" the Maratrac PA into thinking that all is well with regard to temprature, current draw, etc. You can do this by placing ...
by jistabout
Sun Aug 07, 2005 11:27 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Programar radio pro3100 Ayuda
Replies: 9
Views: 1074

I'm sorry, but I for one do not understand your language. Please re-post your request in english and perhaps we can help.....

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