Batboard

WB6NVH

Charles Armstrong was W7NTS, formerly W6UXP and KC6UXP before that, and was originally from Monterey, Calif., where he was well known. He was a 2-way tech for most of his life and moved to Nevada maybe 15 years ago. Sad to learn this.

WB6NVH

Hi Jim- Some time has gone by but that was a no go. Enable mode names was not available no matter what. It was either grayed out or said not available. This was the only one of several that had this issue. Someone had tried to convert it to a HHCH A3 (?) MLM, probably with LAB, and made a mess of it...

WB6NVH

I am dealing with the learning curve on Spectras, having not used them before. In programming a VHF A5 dash mount Spectra I noticed the channel (mode) names were just 1, 2, 3 etc. rather than alpha-numeric as on all the other Spectras I have. In the RSS, there is no place to type in the mode name on...

WB6NVH

Wait a minute! The Motorola plugs are jumbo and much larger than a standard banana, since they have to carry up to about 40 Amps. At least that is the way they are on my S1305 and S1306 Motorola Ratelco power supplies. Mother Moto has kindly NLA'd them but most of us bought ours ages ago. The plugs ...

WB6NVH

I presume you found the Syntor X pages on the web which show the cable and colored plug pinouts. And I assume you have that part correct. Moving on, you need the manual for the 8 mode circuit board, which is 68P81110E87 . But since you are in Budapest that seems unlikely to happen. So.... The head s...

WB6NVH

In my inventory I have RTK 4057A and RTK 4058A cables. These are terminated in the Micor and later style male metering plugs and at the other end of the cable have a modular telephone style plug. Can't seem to find what they go with. Anyone familiar with these?

Geoff
WB6NVH
Monterey CA

WB6NVH

Yes, Bomar says they will make crystals, but the key is "at a decent price." $ 50+ per crystal is a bit much, but then I am a cheap old ham. Quartslab in the UK may be an alternative but I have not tried them.

WB6NVH

Quite. The value is in the head and cables, and the mounting rack, and then only to police motorcycle restorers. I have bought plain radio drawers like this in the past on eBay for $ 20-30, and that was before it became impossible to get crystals at a decent price if at all.

WB6NVH

The metal pack sets which pre-date the PT200 and PT300 are hybrids and did not have a name per se other than the manuals calling them Handie Talkie. Forestry bought a lot of them but so did fire departments, police, civil defense, etc.. The circuitry is the same as the Transistorized Dispatcher type...

WB6NVH

The shiny mic that came with the DuMonts did have the hang-up button on the front, as did the Collins mobile mic for the KWM-2. Mine say they were made by Turner. I always thought that was weird. I think they are either nickle or chrome plated.

WB6NVH

I am late answering this. I think it would be fair to say that activity on 2 Meters FM has waned greatly across the whole country. There are a number of factors. The coordinators will say that there there are no available pairs, but what it really amounts to is that there are many pairs being tied u...

WB6NVH

That DuMont head is featured in a number of episodes. Usually with a Motorola Twin-V 1957 era mike attached to it. Some pretty shabby work by the prop department. Other episodes feature Wo Fat talking on an MJ IMTS car phone head, and McGarrett using a Motorola PT-300. The "walkie talkie" ...

WB6NVH

I will see what happens on my small fleet and report back. I have always used the user-selected scan lists and at least on the low band radios, they are not lost when the radio is turned off so long as the radio remains connected to battery power at all times. I don't see why the VHF would be any di...

WB6NVH

Jim, is that an SP version of R6.00.00? If so, do you know what the SP mod was? I have the non-SP version of 6.00.00 and will have to try it. At least it doesn't say -SP that I can see. Previous attempts were using the ham modified version, R5.02.00 and that may have been the issue (works fine on 10...

WB6NVH

You might check back and let us know how adding tabs back to the VCO substrate strips worked as far as lock. I think I added them all back in and still couldn't get a lock. It needed more capacity than that, which then required an added chip cap at the VCO circuit end. As in your case, my receiver V...

WB6NVH

Yes, that is a low band "Precision Selectivity" Deluxe receiver, the last version. Probably model FMAR-13V. They were available with DC vibrator or AC power supplies. The electrolytic in this supply has already been replaced (I recognize the Sprague TVL tag) but that was probably in the 19...

WB6NVH

I meant to reply to this before the thread got too stale but I am already a bit late. You can certainly do this, you just need to make sure the jumpers in the radio drawer are correct for your accessories, that you have the cable and accessories wired correctly and a way to program the orange module...

WB6NVH

You are right, the VCO is almost certainly in an "unlock" condition on 10 Meters. This end seems to do this rather than the other one. If you were able to look at all the manuals ever published on this radio you would note that the cover goes from calling the radio a 30-50 MHz model in the...

WB6NVH

The next problem is that International is going out of business entirely in a matter of days. Doesn't leave many options.

WB6NVH

I originally had the instructions for converting the LTS 2000 and LCS 2000 RSS to allow ham band entries on 900 MHz over on the P25 Forums but that site has gone down for good, so I am told. As a result, I did a web page with a tutorial on what to do and it's at: http://www.wb6nvh.com/LTS2000.htm Th...

WB6NVH

Well, I have Motorola pre-WWII police radios and GE and Motorola land mobile radio history pages to 1963 (so far) on my website at www.wb6nvh.com if that will help any....

WB6NVH

As the above say. I think you really need the service extension cable so that you can say what the SINAD sensitivity is. If I remember correctly it's part of the stock original Moto programming cable. Going from there, it gets a bit tricky. I had one Saber receiver that was great on the bench with t...

WB6NVH

Yes, I should have tried that, I forgot there was a function for replacing the logic board in RSS, I was thinking that was only in lab because the serial number is in the code plug. That worked fine and the radio is once again operational, and all is well, although I'll probably have to slighly adju...

WB6NVH

I have a 900 MHz GTX mobile which is a refugee from the flea market. It boots up with Error E06 and I am fairly sure this is because the previous user's shop blanked the board with Lab before releasing the radio. Now then, my plan was to take a code plug from one of my other working GTX's of the ide...

WB6NVH

There are a few of us who like this sort of thing. I have a lot of vintage gear in my collection and am working on assorted pages of specific two-way radio history at my website at http://www.wb6nvh.com We have tried to get assorted groups going on Yahoo and QTH but they kind of fizzle out after awh...

WB6NVH

Just acquired an NTN1177E 6-unit gang charger on eBay for my HT1000's. Arrived DOA. Got a full refund from the seller so all is well, except my curiosity got the better of me and I decided to see if I could repair the charger. First, a search on this site will show quite a few threads complaining ab...

WB6NVH

There are several different modules for the "S" series memory. Make sure you say which one you have as there are different modules for the suitcase programmer depending on which memory module you have.

WB6NVH

I believe this was called the MC Micro (?) First generation model. European market only. Apparently someone had a ton of them at Dayton once upon a time and the ones in this country seem to have gotten here that way as they weren't sold new here. I looked at Google images and the MC Micro photos the...

WB6NVH

If you have a standard commercial range VHF chassis it is not going to work on 2 Meters as far as receive, at least not properly. Sensitivity falls off rapidly below about 147 MHz, at least on the dozen or two radios I have converted. The transmitter VCO may or may not lock in the lower 2 Meter band...

WB6NVH

I think that connector is a special, not the usual one on a dash mount SS Dispatcher. Quarter-turn MS- series military connector that is going to be a pain to track down, and you will need the manual to sort the pinout. Likely to be expensive when you do find one. It's not used on any other Motorola...

WB6NVH

Specific name was Solid State Dispatcher. Also sold as Airport Dispatcher and Transit Dispatcher. Transistorized Dispatcher was the earlier one with 1AD4 tubes in the exciter and a 2E24 in the PA. This one needs a bath.

WB6NVH

Apparently the model names are confusing to people after all these years. Motorola used the "Dispatcher" name beginning in 1947 with the FMTRU-5V and continued through many newer models, adding assorted prefixes. The radio asked about by the OP is the original Transistorized Dispatcher of ...

WB6NVH

Early 1900's? How about 1962-1964. They all have the date rubber stamped inside on the side walls. This is the metal Dispatcher series pack set. As far as value, not much. This forum is intended for two-way radio industry people and fellow ham radio enthusiasts to trade technical information and hel...

WB6NVH

This is a question for the older ones among us! Over the years I had always been of the impression that the HT220 was only made in Mid, High and UHF models, and not low band. The other day I happened to be looking in the master index of instruction manuals and there was a book listed for a low band ...

WB6NVH

Further to that, these radios require alignment at the specific frequencies desired. They are not plug-and-play. Depending on the radio you will also need specific jigs to connect the test equipment for the alignment, such as the HT220 antenna adapter box.

WB6NVH

Service manuals show up on eBay semi-frequently. You will need a pair of crystals for each frequency, one for transmit and one for receive, and they cost about $ 25 per crystal from International Crystal, or slightly less from Bomar crystal. These are not broadband radios, they have to be aligned to...

WB6NVH

Current studies which are in process suggest TRBO is less than ideal. Not comparing it to P25, but TRBO 2-slot TDMA in a congested urban environment on a 12.5 kHz channel isn't going to work very well as the TDMA carrier envelope is a square wave, which makes adjacent channel interference protection...

WB6NVH

If you have the head with it, these bring decent money on eBay from the police motorcycle restorers. They don't so much have interest in just the radio drawer alone. This discussion reminded me that I need to get a photo of the MCR-100 radio section up on the web page. I had one of those radios in t...

WB6NVH

Not a Dispatcher, those were T33AAT and T33BAT numbers. Nor the Solid State Dispatcher. DFA should be an MCR-100 set.

WB6NVH

Unfortunately the vacuum fluorescent glass displays in many of these heads are just about shot by now. Try looking at it in a darkened room and ramp the brightness control button up and down just to see if the display is only dim, or bad altogether. This way you may be able to see any error codes or...

WB6NVH

If you search Google using Micom 100 there are several good hits. Motorola sold (?) the HF radio division to Mobat some years ago. One is the full service manual: http://www.mobat-usa.com/manuals/Micom-100.pdf The manual should show the Motorola part number for the crystals and International Crystal...

WB6NVH

It works fine. You need to build a buffer amp. Crush or remove C99 and feed the output of the DDS buffer via a coupling capacitor to the Q25 side of where C99 was. I think I used 100 pf. The DDS signal is injected at the base of the L.O. buffer amplifier stage, not the crystal sockets or anything pr...

WB6NVH

-SP does not mean "prototype." Special Products made things for well-heeled customers who wanted some unusual feature or configuration. Prototypes generally did not have model numbers or serial numbers. One of the most prolific SP modified radios seems to have been the MX300S, the -SP numb...

WB6NVH

I noticed this too. UHF SRA-series first generation Syntor mobiles going for $ 200+ on eBay, that sort of thing.

WB6NVH

I'm curious how you knew the actual ID of the shill bidder since eBay has been obscuring the other bidder's ID for some time now. Which just makes it harder to detect this kind of stuff. One way to beat the attempts to discover your highest proxy bid is to use a sniping service. That way they have n...

WB6NVH

These systems are presently in a state of transition. The GE RANGR equipment in the cars is being phased out and replaced with Kenwood drawers controlled by a touch-screen system indirectly supplied by Rockwell Collins. The portables are now EF Johnson 700 MHz P25 units which go to a Pyramid vehicle...

WB6NVH

In the 1920's, "phone" meant radio. Not two-way. Also, most of such stories at the time were bogus, intended to sell newspapers and movie intermission time.

WB6NVH

There's a vintage Motorola forum on the Yahoo Groups and it gets basically zero traffic month after month. That might be an insight into starting another one elsewhere, but maybe nobody knows about it. There is also a Motorola Twin-V and T-Power group in addition to the Vintage Motorola Group on Yah...

WB6NVH

You did see this, right?

http://www.repeater-builder.com/motorol ... cement.pdf

WB6NVH

It's a Rural Radiotelephone Fixed Subscriber Unit power supply. Like for farms and so forth. From the MTS days, about 1962. It ran a high band T-Power drawer with 1 or 2 MTS Bell System channels and later a 35 Watt class Motrac. There was a telephone style control unit that ran the setup, and if mem...

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