Had to make a normal programming cable for it. The problem I found was all the programming cable schematics I found had one major, and very obvious flaw in them. They had the MAX232 chip hooked up backwards. They had the chip’s +12 to -12 RS232 level outputs/inputs going to the TTL level port of the radio, and they had the TTL outputs/inputs of the chip going to the RS232 port on the computer. The programmer would probably still work, but it wouldn’t do anything any good. So I designed one from scratch.
The one I made just uses a single 7404 hex inverter, and relies on the fact that most RS232 ports will tolerate TTL level inputs. A couple resistors in the inverter inputs from the RS232 ports provides protection for the inputs from too much negative input current from the serial port. Data lines are inverted by running through a single inverter and control lines are non inverted by running them through two inverters in series. You could do the same thing with an LM339 and some resistors if you wanted to.
Midland Technical Information Page Technical Information on Radio Equipment Compiled by Mike Morris WA6ILQ Web page maintained by I know nothing about this equipment so please don't ask! Midland Land Mobile (Commercial) ProductsThe Midland commercial repeaters, mobiles and portables are showing up in the used market in increasing larger quantities. Repeater-builder.com is looking for information on the various models and would like to have someone supply an overiew of the products - i.e.
Just what is a Syntech, or an XTR, or a 70-045, or a 70-342, or a 70-7030, or a 70-565, or a 70-1340B? We have a model chart below, but it's short on overview information - what makes one particular model better over another (maybe a better front end?) We'd like to present some combination of:. How to read a model number - i.e. What the differences are between the various models.
Frequency ranges and which ones are crystal or synthesized. What makes one particular model better over another (i.e. Which ones are the turkeys). What it takes to move them onto amateur radio frequencies. If they aren't crystal controlled, information on how to program them (i.e. Hardware programmer, PC program or front panel programming) would be appreciated, as well as what PC software do you need (and how to get it) We'd like information on programming the radios, and what it takes to move one onto amateur radio frequencies.
The programming article can cover what software you need for which models (and how to get it), what hardware it takes on the older ones that use a programmer rather than a PC, and if there are any tricks that need to be done to move them into the ham bands. Lastly, information on any 'gotcha's' (i.e. You can't get the PA transistors for a model XXX, or a model YYY needs DOS-based software to program where a model ZZZ uses Windows based software) etc. Midland Commercial Equipment There is a YahooGroup email list for almost every brand of radio, and sometimes, as in Kenwood, there are model-specific groups. Midland is no different. One rule of thumb: The Syntech I radios use EPROM Modules and a hardware programmer, while both the Syntech II and XTR radios program with a PC, like modern radios.
Here's the schematic of a Syntech II and XTR programmer courtesy of Brett Kitchens KF4SQB Does anyone have any information on the Midland Programming Interface 70-1052A? It is used to program the 70-045 / 70-065 / 70-165 / 70-265 / 70-166 / 70-266 series portables. Or of the 70-1080 Programmer? Courtesy of Bill Janes, N9SII courtesy of Michael James KC5JDG Midland 70-201BD radio is a relabeled Maxon SD-125 UHF. 3.0 MB PDF file Actual manual number 70-351355 dated 7/91 2.7 MB PDF file Actual manual number 70-133600 dated 4/91 4.7 MB PDF file Actual manual number 70-134144 dated 12/94 2.1 MB PDF file This kit also adds a timeout timer, carrier delay timer, courtesy beep and high-pass audio filter to prevent retransmittion of the incoming CTCSS tone or CDCSS digital code.
The actual board number is 70-07519. Actual manual number 70-999936 dated 9/92 11.7 MB PDF file Actual manual number 70-340380, date unknown. This is part 3 of a 3-manual set. If anyone has the first two parts we'd be glad to have them. 4.9 MB PDF file Actual manual number 70-340530 dated 1/93 3.9 MB PDF file Actual manual number 70-406512 dated 3/83 The Midland Base-Tech series (possibly the entire product line) is made in Japan by Hitachi. These are crystal-controlled stations.
Jeff AL1Q donated this two-manual set for the 50 and 100 watt UHF base/repeater stations, which cover the UHF band in two splits. The manuals were scanned, cleaned up, and stitched together by Bob WA1MIK. The first part had color X-ray views; the second part was obviously a reprint and the X-ray views were already in gray-scale. Both parts were scanned in gray-scale. 6.5 MB PDF file This contains the operating and installation information plus service information for the non-frequency dependent equipment which is common to the entire Base-Tech line, such as the control circuitry, power supply, and cabinet. 10/88 revision. 25.4 MB PDF file This contains specifications, troubleshooting procedures, technical data, and drawings for the transmitter, receiver, and RF power amplifiers of the 71-4050 (50 watt UHF) and 71-4120 (120 watt UHF) stations.
7/94 revision. The Midland / Icom relationship: The Midland 70-154A and B handheld are clones of the Icom H16 (16 channel highband, front panel programmable) and are identical except for the color of the plastic and the name on the housing. The 70-254A and B are clones of the U16, the UHF version. The programming instructions for the H16 and U16 that are on at this web site will work for the Midland clones.
Midland Amateur Radio Equipment Since Midland is out of the amateur radio market, and no longer offers any amateur radio equipment manuals for sale, if someone can PDF the service manuals for these older radios it would be appreciated. The models that we do not have include the 13-500 (2m crystal) mobile and all of the amateur handhelds. All of the amateur market Midland radios were carrier squelch only, but they had a multi-pin accessory connector on the rear of the radio, and the signals available included switched +12vDC on transmit, transmitter audio in and PTT in. Some folks used the connector for powering DTMF encoders, some for CTCSS encoders, some (like me) for both.
The most common CTCSS encoder used was by Communications Specialists, commonly known as Com-Spec, and they have. I used a model ).
This monograph is written for senior and postgraduate students and should also be of value to practitioners of physics, mathematics, and civil engineering. Author by: Wilfried Brutsaert Language: en Publisher by: Cambridge University Press Format Available: PDF, ePub, Mobi Total Read: 93 Total Download: 143 File Size: 55,5 Mb Description: Water in its different forms has always been a source of wonder, curiosity and practical concern for humans everywhere. Subsequent chapters deal with atmospheric thermodynamics and atmospheric circulation; analysis and measurement of precipitation, evaporation, transpiration, and interception; infiltration of groundwater; and reservoir and stream routing. The final chapter highlights the importance of information analysis and decision making in hydrological work. Storage for flood control and regulation for abatement of water shortage are also considered, along with stratification and siltation of reservoirs, catchment yield, and sediment yield and transport. Physical Research Laboratory.
The Midland 13-500 was a twelve crystal controlled channel, 10 watts or 1 watt mobile. No manual on file; anybody want to loan theirs for scanning? 5.1 MB PDF file donated by Ray Wolfe K9RI This radio is a 220 MHz version of the 13-500, and also was marketed as the Clegg FM-76 and Cobra Model 200. This PDF file is the manual that was shipped with the radio. The schematic is inside the back cover. They were made with three different colors of front panel: black, tan and chocolate brown (shown in the front panel photo above). 1.7 MB PDF file donated by Eric Lemmon WB6FLY Yes, this file is smaller than the owner's manual, but that is due to a better scan and better compression.
This is the manual that was sold by Midland as a service manual. For two dollars plus postage. 1.9 MB PDF file by Chuck Adams WB5WRR by Karl Shoemaker AK2O of the Spokane Repeater Group ((offsite link) While this web page is oriented to the 13-509 220 MHz radio much of the information is applicable to the 13-500 2m radio as well. The theory and comments are well worth reading. Donated by Bob Dengler NO6B A simple modification (two caps and 1 resistor) that results in much better squelch action on these radios.
Donated by Larry Clore WB9F A simple modification for making the low power setting 5 watts for link duty on the 13-509 and its variants. 2m, 1w / 10w / 30 watt synthesized. 6.6 MB PDF file (220 MHz version of the 13-510) 3.9 MB PDF file 3.2 MB PDF file Midland Consumer Equipment The Midland Weather radio model WR-300 (and probably other WR series receivers) is not suitable for use as a source of the weather 'Watch', 'Warn', or other type of alert message in a repeater system. The SAME protocol that is broadcast by the NOAA transmitters has digital trigger codes for each geographical area in the country plus a 'turn off' code that is sent at the end of the alert time period. The intent was that the 'Watch' or 'Warning' signals unmute the speaker, and the radio would talk until the 'turn off' code was received. An indicator (usually a red LED) would stay illuminated until reset with a pushbutton. The decoder design of the WR-300 does NOT support the 'turn-off' code, hence once the receiver squelch is opened by a 'Watch' or 'Warn' signal the receiver just chatters for 5 (or so) minutes and then mutes the speaker when the timer expires.
If a long message was received, or a second 'Watch' or 'Warn' signal was received the timer could mute the audio right in the middle of it. Anybody have any info on the Midland 74-109 Weather radio?? Is it timer based or does it understand the 'turn off' code? There is some additional Weather Receiver info on the Radio Shack page at this web site.
Plus there is a. Text, artistic layout and hand-coded HTML © Copyright 2005 and date of last update by Mike Morris WA6ILQ This page originally posted on 14-Sept-2004 This web page, this web site, the information presented in and on its pages and in these modifications and conversions is © Copyrighted 1995 and (date of last update) by Kevin Custer W3KKC and multiple originating authors.
All Rights Reserved, including that of paper and web publication elsewhere. Office 2010 iso torrent ita.
Midland SYN-TECH II, XTR Programming Interface & Soft Various useful information gathered from Internet regarding misterious radios Midland. MIDLAND SOFTWARE COLLECTION.
Also BANTAM Radios are supported using 70-1309 interface RJ-45. Read user manual. Used for. Tested with my old Midland XTR 70-1336 ABOUT PROGRAMMING VARIOUS SERVICE MANUALS PC INTERFACE PROGRAMMING.Tested MAX232/74HC00 Universal Midland Interface IDC/RJ45 (similar with 70-1308 and 70-1309) - under construction Midland Bantam/Titan Radios are using RJ45 connector and 70-1309 interface. According Titan User Manual, microphone connector RJ45 has this. For DOS software, I use a PC 500MHz and (link).
Midland Weather Radio Programming
Burn ISO image to CD and install on HDD. Use 10-pin plug (IDC-10) to connect MAX232/74HC00 interface and Midland radio. Ribbon cable is often used by old computers for COM port connection with motherboard. Radio programming header pin: Conector position - be careful how insert: My Interface Box.
Comments are closed.
|
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |