This was originally put together when I got into the HT1250 200 MHz radios. They modified ok, but the way of doing it as suggested left much to be desired, and the DTMF pad didn't work and the radios were narrow band only.
Over time, I've gotten more into these with the CDM1250/1550 and other waris series radios. I've not seen any of the European ones, but I've been working with the US versions for FM service in ham radio.
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What I've found is the radios features are determined by the "codeplug" settings. This is simply a packed (hex) data written into the eeprom chip of the radio containing tuning, feature and programing data. This is the same area the programing data from CPS is written in, but CPS is unable to change it. The majority of modification of these radios to amateur service is done with modifications to the codeplug. The codeplug layout appears to be the same for most US versions of the radios, but there are some which are different.
Tanapa is a Japanese term But a Motorola adopted the word from the Japanese manufacturing industry meaning Kit or Partial Assembly What happens during the manufacturing process, the Tanapa is assigned to items like a Frame or Partial item number. As it goes through the Build process, it will finallybecome a Radio, ( or completed accessory ) and thus a Model / Serial Number ( or Part Number ) will be assigned when completed.[1]
Note I got a GP340 in LB2 when I was in Germany. As they use the euro CPS for 5 tone I wanted to get it going as a US version with MDC and newer firmware. The 5 tone HT's all use 512k flash memory, not the 128k of the HT750/1250 (1550 is 512k), and I was able to flash it using the unofficial kit, then put a default codeplug in it. It took me trying a couple default codeplugs to find one that works. After this I flashed it to R05.18.01 using the normal tools.
What might be interesting would being able to convert the LB GP340 to HT1550 as the GP's all have the 512k Flash ram. A default code plug would need to be edited from an HT1550 for low-band. Theoretically this should work, the parts line up.
The 4 line control head on this will work on the Waris radios, but the fixed icons for the LCD are different. It may be possiable to replace the LCD module in this control head with the GM380 control head module (P/N 5164313B02) and get it back. I've found this doesn't really effect function, but the talkaround/scan/etc indicators are way different in the TETRA radio.
First ensure your display works before going further. If it's the MTM700 LCD or Display module, the Icons will be different, scan will show up as a period on it for example. The keys will be different and the Menu key can be especially confusing.
Note that if you want to use this Binary file and have the tuning piers set, you'll need to retune the radio. The other option is to take your tuning data and modify it. This can be done via waris.py or by using the data below
To use these files, decide how you want to do it, ie preserve your tuning data or not. As you're moving the tuning piers, you have to retune anyways, so I would use Codeplug tool and write the entire binary codeplug in, then retune. However many people don't want to do this, and you can just merge your radio, and write it from 0x280-end, preserving the tuning area.
There was an API/developers guide a company could license from Motorola. Several companies made add ons for these, but I have very little information on them. I belive this is known as "Professional Radio Option Interface Specifications" or PROIS. Rotronix Ltd. was a company known to make a controller for this.
LC828 interface manual - This has a complete document on the "Motorola Professional Portable Radio Interface Option Board(IOB) Manual". It includes a schematic of the board and parts list as well. This is the same board used in all the interfaces.
The HT series program and flash via the 13 pin accessory port. The CDM mobiles program and flash via the back 20 pin accessory port or via the front RJ-50 (10 pin) connector. The font connector presents some issues when programming and flashing a unit with a remote head, and the rear connector should be used for that.
A very strange issue popped up using the built in serial port on the Dell Latitude D830 with docking station. When using the docking station serial port the radio will "lock-up" and require the cable to be disconnected to be programed.
I've found the Prolific and FTDI serial adapters to work fine with the RIB for flashing/cptool. However the Prolific adapters have an issue in CPS unless they run the right version of the driver, 2.0.2.5.
If you want to flash the radio you need to put it in bootstrap mode. This is done using a flash adapter that puts the CPU (68HC11) into a special mode. The flash program loads a boot loader/flash application via the serial port and then writes the new image to flash chip.
The US Waris unofficial upgrade kit is something that was built by possibly a internal Motorola programmer, or a hack based off the official upgrade kit. Using this tool you can load any of the images on any radio, but you must ensure the image selected is the same size as the flash chip. Note this tool requires all images and default codeplugs as srecord format.
The official upgrade kit includes default codeplugs, firmware images and boot images. These are in an encrypted format, and it appears the unofficial kit has decoded these as the included codeplugs/firmware.
For 8-bit data format, the baud-rate variation that can be tolerated is about 4.5 percent; for 9-bit data format, the variation is about 4 percent. This analysis assumes one of the devices was operating at the exact baud-rate frequency, and the calculations show how much the other device could vary from this. One device operating four percent too slow cannot communicate with another device operating 4 percent too fast.
What this means is if your computer's async port is running just a bit faster (RS232 gives a 3.5% error as acceptable for baud rate), the error can be too much for the radio and it will fail to load the boot helper code and thus won't flash.
This is direct from the SA616 IF IC, and per the datasheet, it is calibrated and tempeture compensated to within 2 dB over 80 db of range. The CDM service manual rates this as a linear range of 70 dB, and indeed the range is generally linear from -120 to -55 dBm of input signal.
This is the same series used by the Radius and Maxtrac radios and much like an RJ45/RJ11 connector the smaller connectors will work for everything other than flashing or programing the Pro Series mobiles. What this means is accessories for the radius (R.I.C.K., Etc.) will work on the CDM with no modifications. Refer to the image below to see how this works.
This is the same as any other to modify to the amateur service from a software perspective. The issue is these radios are narrow band only on the receive path, as the 200 MHz band was never used for 25 KHz channels. Transmit will support wide band (and must be aligned for wide band first!) The IF filters simply need to be swapped with their wide band parts and wide band receive alignment performed.
In a VHF/UHF Waris there is a 15KHz filter at the 1st IF followed by a 15KHz filter at the second IF and then followed by another filter. It's this last filter that is switched between narrow and wide in the VHF/UHF radios. TX deviation is a setting in programming/alignment.
I've changed out the second filters and found it works much better on the ham bands. You need to adjust the squelch for 20/25khz channels after doing this. The tuner software (2.00.02) will do this for the HT1250 only, it will not work with the mobiles. Use winabler to access the greyed out menus in tuner 2.16.
The 220 Filters are 12 and 9 Khz wide at the 2nd IF. Switching them to the E filters of the UHF HT1250 is rather easy, as they are just on the underside of the board, not under a shield. An under board heater with a hot air station makes this rather easy.
These show the filter change out on a CDM 1550. Kapton tape is used to protect the adjacent parts as they will reflow and move. An underboard heater is used to bring the board up to 500f (260c) while a hot air wand is used to supply the last bit of heat needed.
Using Chirp is the way to do it and you can change everything. I typically set the signaling bits to FF enabling all signaling supported, but some radios may not work with this. Always read the radio and save the data before making changes. The data file format is the same binary on the radio EEPROM and use by cptool.
Read the radio using the CP tool and save the binary codeplug. I typically will read this from 0x0000 to 0x1000 which will capture the entire default codeplug (Tuning, Features, and Programing). Save this file and set is aside for safe keeping. If anything goes wrong, you can blow it back into the radio and restore it to defaults with out needing to retune.
Open this file with the CP tool and put 0x280 to 0x2ff into the radio, no need to write the entire file. This makes it easy to do many units at once, just blow the Feature Block in, while leaving the tuning and programing alone.
You'll need to now tune the 20 and 25 KHz squelch settings in the tuner software. The issue here is the tuner software will not let you select the 20 and 25 KHz from the drop down menu. Using Winabler this can capture the tuner menu and enable these.
I use the auto squelch setup and found a good value is -127.5 dBm for hams. My radio is -124 dBm for 12db SINAD so this is about 6 dB SINAD at -128, very noisy but understandable. Auto tune makes this really easy. You can always program a button to set the squelch to tight in CPS.
It's also a good idea to check the frequency/modulation/power out alignments too. The CDM1550's from the New Jersey Turnpike all were aligned wrong for the power output, and we 20W out when set for 30W. Align it in tuner properly, and then use CPS to lower the power if you want.
The CDM is available in a high and low power version for VHF and UHF. The nice thing about the low power units is they can go from 1-25w and while the high power are 20-45w. As sometimes the link radios are best run at low power or if building a repeater it's much better to run a low power radio at 15W into an external PA then a high power radio at 20w. A solid state RF amp wants to be run within 3dB of it's rated output. While you can run a 45w radio at 20w, you'll find it's drawing double the power of the 25w radio running at 20w. This extra power is turned to heat, and heat kills power amps. 152ee80cbc
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