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FRIDAY - NOVEMBER 8, 2002 - ISSUE NO. 37

Dear Friends and Industry Colleagues,

This is my weekly newsletter about Wireless Data and Radio Paging. You are receiving this message because you have either communicated with me in the past about a wireless topic, or your address was included in another e-mail that I received on the same subject. This is not a SPAM. If you have received this message in error, or you are not interested in these topics, please click here, then click on “send” and you will be promptly removed from the mailing list.

A hearty welcome to several new subscribers this week. The following very polite note is typical of the ones that I receive every week:

“I was forwarded your newsletter and would ask if this is a no cost letter that doesn’t have member restrictions that you could include me on your list.”

Well, as they say in Miami, “NO PROBLEMA.”

WIRELESS NEWS FROM MEXICO
cisneros photoLic. Manuel Cisneros

The existence of beepers defended

By José Manuel López
Grupo Reforma
México

In spite of registering a diminishing number of users, the radio paging industry has not come close to dying since it now has a new life through a diversification of services, affirmed Manuel Cisneros, president of ANCOR (the National Association of Paging Carriers in Mexico).

He said that a service, now available in Mexico, using radio paging technology, prevents auto theft. ”We place a device in the automobile so that when a person loses his [car], he can talk to our call center and—automatically—using a signal that we radiate over the whole city, the stolen car can be detained, and its alarm system activated“, he explained.

Because of the great insecurity that exists in Mexico, he added, this service is in great demand, and along with other services that the paging industry is starting to offer, this sector will once again perform.

Other strong points of paging, he added, are the cheap services that that could measure consumption for the gas and light services—over a distance—at reasonable prices.

The press release said that the cellular telephone companies have kept [paging] users from the cost benefits of continuing to use their pagers, but very soon there would be a return to this service.

Defienden existencia de "beepers"

Por José Manuel López
Grupo Reforma
México

A pesar de que ha registrado una disminucción de usuarios, la industria de la radiolocalización no se acerca a su muerte, ya que tiene nueva vida a través de la diversificación en los servicios, afirmó Manuel Cisneros, presidente de la Asociación Nacional de Concesionarios de Radiolocalización (Ancor).

Existe, dijo, un servicio que ya está disponible en México, que a través de la tecnología de la radiolocalización, o paging, evita el robo de autos. "Colocamos un dispositivo en el automóvil para que cuando una persona es privada del suyo, hable a nuestras centrales y automáticamente, por medio de la señal que radiamos por toda la ciudad, el auto se detiene y pone en funcionamiento sus alarmas", explicó.

Debido a la gran inseguridad que existe en México, añadió, este servicio tendrá una gran demanda, que junto con otros que empieza a prestar la industria del paging, podrán llevar a este sector a repuntar nuevamente.

Otra de las fortalezas del paging, agregó, es lo barato de los servicios, ya que se podrán hacer mediciones del consumo de servicios como luz o gas a distancia a precios accesibles.

La publicidad aplastante, dijo, que han realizado las empresas de telefonía celular impiden que los usuarios se percaten de los beneficios en costos al seguir utilizando sus radiolocalizadores, pero pronto habrá un retorno a este servicio.


EQUIPMENT AND SERVICES
WANT TO BUY WANT TO SELL

 

Daviscomms TMR (Telemetry Messaging Receiver). This is a one-way FLEX telemetry device which is available in the following frequency ranges:
  • 135 to 174 MHz
  • 278 to 286 MHz
  • 929 to 932 MHz

I have prepared an information package and ordering guide. If you would like to have a copy, please click here. left arrow

  Legacy Technologies paging infrastructure repair with warranty.Tell them Brad sent you. Please click on the company name above to respond directly.
If you have any wireless equipment that you would like to buy or sell, please let me know. Everything that is offered for sale in this newsletter is on the honor system. There is no charge for the listing, but if a sale is made, I ask the seller to send me a 10% commission, much the same as the voluntary payments that are requested on the Internet for shareware.
I am available as a consultant for wireless projects. If you have a requirement for my services, related to paging technology, telemetry, or wireless messaging, please send me an e-mail with a description of your needs. Please click on the preceding link.

PAGING INFRASTRUCTURE FOR SALE

From: Elio Soto Bustamante
Telephone: 954-431-4403
E -mail: Soto2937@bellsouth.net left arrow Please click here to respond directly

              Unit Cost Price Total
No.
Description   Model Frequency Watts Qty US$ US$ US$
1 Alpha Numeric Terminal *1* Zetron 640-Alpha Brand New   1 4,500.00 2,000.00 2,000.00
2 Modem *1* Zetron M-66 Brand New   1 950.00 450.00 450.00
3 Receptor Quintron GE 455.025   4 2,000.00 500.00 2,000.00
4 Transmitter Quintron QT-300 159.35 300 1 11,500.00 2,500.00 2,500.00
5 Transmitter Quintron QT-5700 455.025 35 2 10,500.00 2,000.00 4,000.00
6 Transmitter Quintron QT-6700 455.025 90 1 11,500.00 2,500.00 2,500.00
7 Transmitter + Cabinet Quintron QT-100C 159.35 100 2 11,500.00 3,000.00 6,000.00
8 Wattmeter Quintron QT-6700 455.025 90 1 1,500.00 300.00 300.00
8 Wattmeter Quintron QT-6700 455.025 90 2 1,500.00 300.00 600.00
9 Spare parts for QT-300 / QT 100 Quintron       1   1,500.00 1,500.00
  *1* sell together                
 
Discount If Buyer buys all Items:
10%            

Brad:

My associates and I at Contact Wireless enjoy your weekly newsletter and rely on it to keep us informed. Thanks for your efforts! We believe in the future of paging, too. In fact, we are expanding our network in NM and CO and have added unique messaging features, like transcription. We also are seeking 900 MHz partners in AZ, UT, TX, MT, WY and ID to participate in a regional network. I would love to hear from interested parties.

Please see/publish the attached list of "garage sale" items that we have discovered in our warehouse. Price is "make offer". Thanks, again for your positive influence!

Scott Forsythe, CTO
SelectPath, Inc.
303-768-9673
scott@selectpath.com left arrow
Please click here to respond directly

SELECTPATH - SURPLUS INVENTORY LIST
QTY DESCRIPTION / CONDITION COMMENTS
1 Lindgren RF screen room, 10 x 7 used
1 Lindgren RF screen room, 15 x 10 ? used
misc VHF dipole antennas (DB224) used
misc UHF dipole antennas used
7 DB230 75 MHz yagi antennas used
7 Piezo crystal filters, 75.74 MHz used
1 Isocoupler (VHF antenna on AM tower) used
25 NEMA box - 16 x 16 x 4 used
80 RPS1204, Samlex 12v, 4amp, regulated power supply used
80 RF Neulink, Mod. RFL-T9D, 900 MHz, 2 watt transmitter used, crystal
80 Comm-Spec, ID-8, morse code ID encoder used
10 TAIT radio cabinets, 40" used
4 Motorola outdoor cabinets, 72" used
1 Motorola (?) outdoor cabinets, 66" used
1 19" equipment cage, 84", orange used
2 19" equipment cage, 80", brown used
1 BEST Ferrups UPS, 1.0 KVA used, needs battery
1 C&D, 50 amp, 48 volt charging system used
2 Lorrain, 100 amp, 48 volt charging system used, excellent cond.
1 battery rack for up to 16 batteries w/ cables used, excellent cond.
1 microwave dish, 4' w/radome and mounts, 2.1 GHz used
1 microwave dish, 6', misc. mounting hdwr used
2 radomes, 6' used
3 2.1 GHz feedhorns for 6' dish used
1 2.1 GHz feedhorns for 6' grid dish new in box
1 Badger MW alarm system never installed
1 tower anchors, 8', set of 3, (to be set on concrete) new
1 Zetron Mod 2200 paging terminal w/ expansion chassis used
1 Zetron Mod 640 DAPT XTRA paging terminal used
1 CTI paging terminal with VM used
1 Glenayre 3900 TAS terminal used
1 Glenayre MVP-E voicemail terminal w/fax server used, in service
1 Spectrum VHF transmitter used
1.5 Motorola Micor, 100 watt, HSO used
9 Tait T881-20, 931.0375, 5 watts, 931.0375 new, w/manuals
4 Tait T881-20, 931.0375, 5 watts, 931.0375 used
1 Quintron QT6700, 90 watt, 454.250 used
1 Quintron QT6700, 90 watt, 454.350 used
2 Quintron QT5700, 35 watt, 454.100 used
1 Quintron QT5700, 35 watt, 454.175 used
3 Quintron QT5700, 35 watt, 454.200 used
1 Quintron QT5700, 35 watt, 454.250 used
1 Quintron QT5700, 35 watt, 454.350 used
1 Quintron QT6500, 100 watt, 155.400 used
1 Quintron QT4500, 25 watt, 154.540 used
1 Quintron QT4500, 25 watt, 152.090 used
1 Quintron QT4500, 25 watt, 152.060 used
7 Quintron Power Supplies for above used
1 TE systems Power Amplifier, 152.480 used
2 DB4071 Duplexer, 450 MHz used
1 DB4072 Duplexer, 450 MHz used
5 DB4055 Duplexer, 150 MHz used
1 DB4054 Duplexer, 150 MHz used
1 DB4005 Duplexer, 150 MHz used
1 Telewave Duplexer, 150 MHz used
3 DB4021-1 Cavities, 450 MHz used
1 RJ Comm. Prod. UHF combiner, Mod. TCD-150-41R-1 used
1 DB-SP10255, VHF 3 Ch. combiner, 148-174, 40" cabinet never used
2 Quintron RC451, 459.100 used
1 Quintron RC451, 459.125 used
1 Quintron RC451, 459.175 used
2 Quintron RC451, 459.200 used
2 Quintron RC451, 459.275 used
2 Quintron RC451, 459.350 used
1 Quintron RC151, 158.490 used
1 Quintron RC151, 158.550 used
1 Quintron RC151, 158.670 used
1 Quintron RC515, 158.640 used
7 Lenkurt Microwave, tx/rx, 2.1 GHz used

Brad,

I think I may have sent you an email a few months ago regarding some paging equipment I had at a tower site. I'm sorry I didn't get back to you with answers to your questions. I just returned from a 3 month work trip in Germany.

I still have the Glenayre Equipment in my hut and I would like to put this up for sale ASAP. From what I can tell I have the following in a rack mount:

1. Power Amp GL-T8500 p/n 9110.00242 = 931.4875 MHz
2. Gold Line VDT p/n 9110.00164
3. DSP Exciter w/ Wideband Option p/n 9110.00172
4. Gold Line Power Supply p/n 9110.00159
5. Back Up Batt p/n 9110.00144
6. GL-C2000 Transmitter/Controller
7. Sky Data Multi Channel RX

Please let me know if you would be interested in helping me resell these items.

Thanks,
Mike
mshoaff@wiman.net left arrow
Please click here to respond directly

QUESTIONS FROM READERS

Hi Mr. Bradley,

I have visited your page looking for some technical reference about [the] ReFLEX 25 protocol. Please guide me over your web page (excellent page, by the way), if there [is] some thing about frame calculation depending of the capcode.

For example:

If i have the capcode 0110002300, in what frame should [it] be placed in the 128 Frames of the reflex 25 protocol? Is there a formula to calculate the frame depending of the capcode?

Thanks.
José Luis García
Telemetry 2-way paging

jlgarcia@elektra.com.mx left arrow Please click here to respond directly if you can help him


We fix Glenayre, Motorola, and other equipment like skydata.  Do you know where I could find a schematic of the Glenayre C2000S ????

Thanks
Steve Donohue
sdonohue@tkonetworks.com left arrow
Please click here to respond directly is you can help him


ADIÓS AMIGOS
Have a good weekend. Please send me anything newsworthy that you come across and I will include it in next week's newsletter.

UNTIL NEXT WEEK

PAGING
INFORMATION
RESOURCE

Best regards,

BFD signature
Brad Dye
Wireless Data Consultant
3523 McKinney Ave. # 536
Dallas, TX 75204-1474 USA
Telephone: 972-523-8258
Consulting and Job Search Page left arrow click here to help rescue me from starvation!

FLEX, ReFLEX, and InFLEXion are trademarks or registered trademarks of Motorola, Inc.
CreataLink is a trademark of SmartSynch Communications Corp.

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