Batboard

jistabout

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. The ...

jistabout

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 ...

jistabout

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

jistabout

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 ...

jistabout

Thanks! I'll be sure to disable the other audio path.

jistabout

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 ...

jistabout

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

jistabout

Hi Rob! *shakes hand*, thanks in advance for your time & expertise when needed

.

jistabout

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 ...

jistabout

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 ...

jistabout

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.

jistabout

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 locks ...

jistabout

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 ...

jistabout

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 ...

jistabout

Dave, you were right on the nose. Thank you! Not sure I understand why it was done that way though.....

jistabout

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 ...

jistabout

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...

jistabout

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 according ...

jistabout

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. Some ...

jistabout

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 ...

jistabout

Okay, thank you guys. Might it also work with the Maratrac and/or Radius etc. mobiles? My use would be to program Maratracs....

jistabout

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 ...

jistabout

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 ...

jistabout

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

http://batboard.batlabs.com/viewtopic.p ... ek+cooling

jistabout

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 dummy load ...

jistabout

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 ...

jistabout

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 ...

jistabout

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 ...

jistabout

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

- Darrell

jistabout

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.......

jistabout

Update: I just tried it with a stock PMNN4001C battery, same result.....

jistabout

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 ...

jistabout

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.

jistabout

I see that its been awhile.........Any update on this?

jistabout

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

Dan's probably right about those Sabers...........

jistabout

Think mabye Will found the problem. I cleaned the DC contacts on the main board as he suggested and so far so good..........

jistabout

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 ...

jistabout

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 ...

jistabout

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.

jistabout

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......

jistabout

Perhaps channel 15 is programmed as the SCAN channel?

jistabout

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

- Darrell

jistabout

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....

jistabout

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!

jistabout

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......

jistabout

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 ...

jistabout

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 ...

jistabout

Also, drive power is quite small - 1 watt or less. The Maratrac PA is quite similar to the Mitrek PA.

jistabout

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 ...

jistabout

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

Search found 144 matches

Re: Motorola R2600A versus HP8924C

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

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

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

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

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

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

Re: Let me introduce Rob....

Moto R2014D(R2001D) Generates BAD RF Interference!

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

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

Motorola R-2001D - Is this normal?

Re: Do you do this?

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

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

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

Re: Motorola R2014D/R2001D Question

Motorola R2014D/R2001D Question

Re: Multi-XFL Radio

Moto wireline control board

Re: Unidentified RIB-to-radio cable?

Unidentified RIB-to-radio cable?

GP68 UHF - Receiver is deaf!

GP68 HOT on transmit

GP350 DC Power Problem....

Motorola C64RXB3106

Maratrac channel scan question