apr 30

Upgraden van je CS700

cs700web1-500x500Connect Systems biedt de mogelijkheid je CS700 porto te upgraden. Om je CS700 te upgraden naar een CS700A moet de behuizing van de porto worden geopend en moeten op het PCB twee punten worden kortgesloten en de porto worden aangezet.

Om een CS700 te upgraden naar een CS750 (de firmware voor de amateurversie met front panel programming) moet er een chip worden vervangen in de porto.

In beide gevallen geeft Connect Systems aan dat er risico’s zijn aan het zelf aanpassen van de porto en biedt een mogelijk de porto op te sturen en te laten upgraden. In hoeverre dit ook door de importeur kan worden uitgevoerd is niet duidelijk bij het schijven van dit bericht.

Meer informatie is hier te vinden.

UPGRADING CS700 TO CS700A
AND
UPGRADING CS700 TO CS750

To upgrade from a CS700 to a CS700A requires the following steps:

1. Get a copy of the tuning parameters.
2. Take the radio apart to get to the PCB
3. Short two points on the PCB and turn on Power
4. Load New Driver
5. Load New Firmware
6. Convert new tuning parameters to new turning parameters
7. Use service Monitor to tune certain parameters if necessary
8. Initialize code plug

There are three issues with having the customers do this themselves.
(1) If you make a mistake you might brick the radio and could take at least 4 hours to recover.
(2) If you short the wrong spot on the radio you might damage the radio.
(3) We have no way of protecting our intellectual property from being copied by other manufacturers.

Connect Systems decided that because we cannot have the customers do the upgrading themselves because of the above reasons, we would charge a nominal fee of only $20 including shipping within United States to upgrade an old CS700 to the new CS700A. For customers outside the United States, we will charge $15 plus shipping. For those customers it would be advantageous to ship multiple radios at the same time.

To Convert the CS700 to a CS750 requires the changing of a memory chip. This means unsoldering an existing IC and soldering in a new IC. Then you following the above 8 instructions. For that the price is $60 including shipping. For customers outside the United States, we will charge $55 plus shipping. For those customers it would be advantageous to ship multiple radios at the same time.

To upgrade your radio call (818) 889-0503 after the Dayton Hamvention for a RMA number. With the RMA number, you must include the radio, your return shipping address, and a check or credit card number to cover the cost of upgrade.
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CS700A

The CS700A is the old CS700 Hardware with some new firmware. Among some of the features in the first version of the CS700A is programmable Mike Gain and Nuisance Channel Delete. Future updates will have some of the other features I promised a long time ago. If you are happy with the CS700 you have now, there is no compelling reason to upgrade your radio. The outside of the radio is still marked CS700.
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CS750

The Original CS700 was designed for the commercial markets and as such did not have certain features that was desired by the Amateur market. The CS750 is the first DMR compatible radio to be designed specificially for the Amateur market. In the commercial market, having one thousand contacts is probably more than you will ever need. There is nearly 10,000 contacts available just in the DMR-MARC network and all those contacts and more can be stored in the CS750. The Papa Amateur Club has nearly 1000 channels covering its repeaters up and down the California coast. Our radios will have more than 1000 channels. The Amateurs have a need to add channels while away from their computers. The CS750 will have keypad programming. Some of the other features that the Amateur Community has asked for will be in there such as Nuisance Delete and Mic Gain. More features will be added as we get feedback from the Amateur Community. The price for this radio is $239 if ordered directly from Connect Systems. The price is $229 if your order 10 or more at the same time. You will also save on shipping cost per radio. Some of the features described will not be available on the first release but will be added by a simple upload of new firmware. To order please call (818) 889 0503

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COMPATABILITY WITH OTHER VENDORS RADIOS

The firmware that will load in the CS700A and CS750 will not load in any of the radios that is sold by Quantun Electronics or any other vendors. Some of the Ham Friendly features in our radios are being written by Connect Systems and will not be available in our competitors products.

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CS300 Radio for Visually Impaired

Summary
The purpose of the this radio is to achieve two things:
(1) Have a radio that is ideally suited for the vision impaired population.
(2) Have a test bed to test some of the concepts for the CS7000 multi-protocol radio.

Background
Early in the development of the CS7000, I promised some Hams that the CS7000 will be ideally suited for the Hams that are visually impaired. It is now time to meet that promise and develop an inexpensive test bed to prove the concepts

I decided that it might make sense to take the CS100 radio and partially rewrite the firmware to achieve this purpose. This radio is a top of the line commercial radio that is every bit as good as the Motorola commercial radios. Once the development and testing is completed for this radio, and it has been in the field tested by visually impaired Hams, the feedback will allow the CS7000 to have a fully optimized visually impaired radio at a reasonable price.

Other Advantages
Beside being designed for the visually impaired, this radio will have other advantages and features that might interest the larger Amateur Radio Community.
(1) This radio will be ideally suited for emergency operations where the lighting is too low to easily operate a normal radio.
(2) This radio will be programmed without having a computer.
(3) This radio will have special macro features that will allow the average HAM to program the radio to do functions no other radio can do. As an example, the user can program the radio to wake him up at a predetermined time, then transmit a wake-up call to someone else along with his call sign, then put the radio into a receive mode to listen for normal radio traffic, then start the coffee maker. It can also be used to automatically generate a distress call or dial a phone number through a phone patch and leave a message.
(4) Because the radio is designed for the visually impaired, wide use of voice prompts will have to be used. This radio will allow the user to program the voice in any language.

apr 26

Hytera Wireless Micro

Bron: ham-dmr.be door Tom ON3DHC

Omdat ik vaak de vraag krijg hoever ze staan met de Bluetooth micro wou ik hier alvast de status geven.

Concreet zal er levering mogelijk zijn vanaf eind mei 2015 Ik heb al een paar backorders staan en door de grote vraag voor deze Bluetooth Micro vrees is dat ze ook heel snel overal gaan uitverkocht zijn. Het prijskaartje is ook niet mals, officiële verkoopsprijs is 232 Euro voor de micro met lader en dan nog 87€ voor het gedeelte dat op de radiokant klikt. Let op dat is EXCLUSIEF BTW. Inclusief BTW is dat dan 386€
Hytera wilde het bleutooth zendertje apart verkopen omdat iemand met meerdere voertuigen met 1 micro en meerdere “dopjes” kan aanschaffen en zo de micro mee verhuizen volgens het voertuig waarmee men rijd. Op mijn vraag waarom dan de houder met laadfunctie ook niet apart verkrijgbaar was kreeg ik enkel een “Eughhh…” als antwoord.
Maar goed, pre-order kan gedaan worden, De “HAM-prijs” zal dan medegedeeld worden .SM27W1SM27W1-2
Als alternatief kan ook gekozen worden voor de micro met het lange snoer en display met 3 regels. Op die manier kan je meer informatie op het display krijgen dan enkel het kanaalnummer.

Het ID wordt dan getoond op de display tijdens een call.

apr 25

Nieuwe Hytera repeater in aankomst, PI1WFR

NoordHollandEr komt een DMR-repeater in Noord-Holland. Dat maakt William (PE1BMM) bekend. De ATOF is inmiddels ontvangen en de repeaters zal onder de roepnaam PI1WFR gebruik gaan maken van de frequentie 438.0125 Mhz met een shift van -7,6 Mhz en colorcode 1. Deze repeaters zal de 22ste repeaters in Nederland zijn. Het streven is de repeaters eind mei in de lucht te brengen in Obdam. In de regio Twente wordt momenteel ook gewerkt aan een DMR-repeater. Ook deze gaat aansluiten op het Hytera netwerk. PI1TWE zal de 23e repeater van het land worden, waarvan het de 18e Hytera repeater is. Ook Twente is nog een witte plek op de kaart, zeker voor gebruikers van een handheld terminal (portofoon). Er zijn nog meer repeaters in voorbereiding hierover later meer.
Obdam

apr 24

DMR voor Emergency Radio

logo_DARESNu het DMR netwerk redelijk landelijk dekkend is en steeds meer gebruik maakt van HamNet in plaats van het commerciële internet kan het natuurlijk ook worden gebruikt voor noodverkeer. In België is hier een aanzet toe gegeven en heeft Walter ON4AWM uitgewerkt hoe je DMR en Analoge radio’s aan elkaar zou kunnen verbinden. Zijn beschrijving vind je hieronder en kan je hier downloaden

Hytera MD7xx/RB6xx Interface to other transceivers

MD785-frontMD785-rear

 

 

 

 

 

As DMR 70cm becomes more and more usable as a general coverage radio network within Belgium and beound, the need to connect other transceivers to the DMR network in case of emergency becomes eminent.

As a small project this paper will explain such a connection between two transceivers equipped with a standard mini-DIN 6 pole DATA connector and a MD785G mobile transceiver of Hytera.

CPS Hytera Settings

 

CPS-MD785

The settings within the MD786 have to be modified, so the signaling on the expansion connector DB26 will be available with the correct level.

We will make use of the “Speaker Open Detect” function connected to pin #3 generating a “high” level as an active signal is detected and the “Ext Mic PTT” connected to pin #16, activated with a “low” level.

The connections for the “audio out” at pin # 8 and mic in at pin #7 are fixed connections without any settings.

The ground signal can be found at pin #2 of the DB26 connector.

Signalink Cable SLCAB6PM
ft817dp 13219396853021533599352rj45_signalink)

As the inter-connection cable, I make use of the Signaling prefabricated cable SLCAB6PM, used in many configurations. It consists of one mini-DIN 6pole plug and one RJ45 plug.

Because Tigertronics makes beautiful sound card interfaces, they have all kinds of interface cables and use one RJ45 jack to connect them to their equipment. This standardization eases a lot and provides us with all kinds of transceiver connection cables.
Icom208toSignalink

 

The interface

The interface is constructed around one RJ45 jack (Signalink Layout) and one DB26 plug.
Schema

The “High” levels of the signals detecting audio or a carrier are used to trigger a transistor to generate a “low” level for PTT action.

As it seems that some transceivers (TM-D700) generate also a “Carrier detect” in case of an external PTT activation, this action is inhibited through the circuit constructed around D1,D2.

Not all transceivers cope well with high level audio signals. For the FT817, the levels are well defined and within the Hytera specs, for the TM-D700 the Mic in signal is defined as maximum 40mVptp. As it enters the transceiver after the pre-emphasis network, low frequencies will be saturated. I constructed a little add-on RC network to avoid this effect and to reduce the signal level entering the Mic input. It is made of a RJ45-jack and Plug that can be placed in between the interface and the Signalink cable, so the original interface does not have to be modified.

Values of components are not critical, only the termination should be > 10K at most pins.

Transceiver settings

The settings to use this cross-link connection for the different transceivers are as follows:

FT-817
FT817-FrontFT817-Rear

  1. Set the Packet rate to 1200bps to select the proper audio path within the transceiver (menu item #40)
  2. If necessary change the PKT MIC settings to the proper level (menu item #39)
  3. Switch the transceiver to PKT mode for operation.

FT817-PKT%20modeFT817-PKT%20mode1

TM-D700
TM-D700%20frontFT817-Rear

  1. Set the Data band to the desired band. Normally it will be band A. (menu 1-6-1)
  2. Set the DCD SENSE to both bands (menu 1-6-1)
  3. Set the DATA SPEED to 1200Bd (menu 1-9-6) as the Mic level will be reduced to 40mVptp. At 9600 the transceiver would need a 2Vptp level, way too high for our application.
  4. For operation you can use any setting you desire, sub-tone, memory channel, narrow or wide, but switch any TNC action OFF.

TM-D700-TNCsettings

Conclusion and testing
In case of an emergency operation communication is mostly used “portable”. This setup could be used not only as a range extender (cross-band repeating) but also as an analog-to-DMR  gateway.

The latter would be of great value to extend the coverage of analog portable equipment due to the fact that the DMR relays are easily interconnect able through the DMR server network and widely covering a territory like Belgium.

As one of the major applications this mini-transponder setup can be used within a car to get outside and use a normal 2m portable transceiver to communicate over 70cm DMR making use of a dual-band antenna on the car rooftop and a diplexer to connect both transceivers to the same antenna.

Putting both transceivers together in a box , the DMR transceiver into Roaming mode at and you other transceiver at a 2m frequency with CTCSS and a magnet dual-band antenna with diplexer gives you a quick and portable setup that could be quickly installed within another car or on top of a building.

The roaming functionality will automatically look the strongest DMR relay in the vicinity and in case this relay will go down, the DMR transceiver will automatically switch over to the next one, making this an automated system.

I hope this triggers others to think about “emergency communication” as an incentive to discover all kinds of new interconnection-modes.

Have fun! 73 de ON4AWM, Walter

apr 19

Connect Systems presenteert CS750

cs700web1-500x500Op de website van Connect Systems wordt melding gemaakt van het uitbrengen van de CS750 speciaal voor de radioamateur-markt. De firmware zal worden aangepast om alle DMR contacten en kanalen die in de wereld worden gebruikt te kunnen opslaan. Ook wordt het mogelijk de radio te programmeren (FPP, front panel program). Connect Systems schrijft hierover het volgende:

CS750

The Original CS700 was designed for the commercial markets and as such did not have certain features that was desired by the Amateur market. The CS750 is the first DMR compatible radio to be designed specificially for the Amateur market. In the commercial market, having one thousand contacts is probably more than you will ever need. There is nearly 10,000 contacts available just in the DMR-MARC network and all those contacts and more can be stored in the CS750. The Papa Amateur Club has nearly 1000 channels covering its repeaters up and down the California coast. Our radios will have more than 1000 channels. The Amateurs have a need to add channels while away from their computers. The CS750 will have keypad programming. Some of the other features that the Amateur Community has asked for will be in there such as Nuisance Delete and Mic Gain. More features will be added as we get feedback from the Amateur Community. The price for this radio is $239 if ordered directly from Connect Systems. The price is $229 if your order 10 or more at the same time. You will also save on shipping cost per radio. Some of the features described will not be available on the first release but will be added by a simple upload of new firmware.

Meer informatie vind je hier!