We're excited to announce that Dayton Hamvention 2024 will include an appearance from a Motorola Type II trunking system in the 70cm amateur band (lovingly referred to as the HamTrunk™)!
Visit us at the big red fire truck 🚒 in the EmComm Expo, flea market booth 7720, or call us on HT-Primary!
As the system administrators, we hereby give permission to affiliate to and use the system, predicated on following these rules:
- All activity is subject to auditing and logging
- FCC-licensed amateur radio operators only
- Foreign stations operating under FCC authority are also allowed
- Follow all applicable rules
- No political speech
- Have fun!
Users that do not follow these rules are automatically no longer authorised to use the system, and may be inhibited.
| Parameter | Value |
|---|---|
| System ID | CAFE |
| Connect tone | 128.57 Hz |
| Bandplan | UHF OBT |
| Channel bandwidth | 12.5 kHz |
| Conversation type | PTT-ID |
Please use the following decimal radio ID: 1xxxx, that is the number 1 followed by:
- the last 4 digits of your DMR ID if you have one, or
- a random 4-digit decimal ID otherwise [click here for one!]
Radio IDs that do not follow this schema will not function properly.
- Callsign: K7UDZ
- DMR ID: 3200411
- Radio ID:
1+0411:10411(decimal)
| Range | Start frequency | Spacing | End frequency | Start channel | End channel |
|---|---|---|---|---|---|
| Receive range 1 | 446.0125 MHz | 12.5 kHz | 449.9875 MHz | 380 | 698 |
| Transmit range 1 | 441.0125 MHz | 12.5 kHz | 444.9875 MHz | 0 | 318 |
| Designation | Receive frequency | Transmit frequency |
|---|---|---|
| Primary | 446.0125 MHz | 441.0125 MHz |
| Alternate 1 | 446.1125 MHz | 441.1125 MHz |
| Alternate 2 | 446.2125 MHz | 441.2125 MHz |
| Name | Type | Mode | ID (hex) | ID (dec) | Purpose |
|---|---|---|---|---|---|
| HT-Primary | TG | Analog | 301 |
769 | General use |
| HT-Test | TG | Analog | 303 |
771 | Testing and experimenting |
| HT-ATG | AG | Analog | 30f |
783 | System-wide announcements (rx-only) |
This talkgroup is the general-use TG for all communications on the trunk.
This talkgroup does NOT allow emergency calls or alarms.
Please treat this similarly to a general-use amateur repeater.
This talkgroup is a secondary TG for testing and experimenting.
This talkgroup allows things that would not be appropriate on a general-use amateur repeater, such as:
- Emergency alarms and calls
- Sending statuses and messages
- Trying out other system features to see what happens
Compliance with FCC regulations is still expected.
This talkgroup should be programmed as an announcement group (AG).
System-wide announcements from the system administrators will be broadcast on it.
Please do not attempt to transmit on this talkgroup.
Private calls are allowed, but must be performed in the "enhanced" mode (private call with ring). This is to preserve voice channel capacity.
Call alerts are allowed.
| Manufacturer | Product line | Programming guide | Example codeplug | System key |
|---|---|---|---|---|
| Motorola | ASTRO | ASTRO CPS | astro.cpg | SYS0CAFE.KEY |
| ASTRO 25 | ASTRO 25 CPS | astro25.cpg | SYS0CAFE.KEY | |
| APX | APX CPS | apx.mc | SYS0CAFE.KEY | |
| EF Johnson | Legacy | PCConfigure | pcconfigure.rcf | CAFE.key |
| Viking | Armada | armada.aep | CAFE.akey |
© 2024 Ilya Smirnov