| GENERAL |
| System: | ARP (Finland) |
| Frequency range: |
RX: 147.900-149.975 MHz
TX: 152.900-154.975 MHz
NB! The "S" version was capable of semi-duplex only
|
| Frequency stability: | 10 ppm (No temperature reference) |
| Power supply: | 12-14 VDC |
| Current drain / power consumption: | Standby: ? mA
Talk: ? A |
| Impedance / antenna: | 50 ohm / TNC? |
| Dimensions (W*H*D): | 215*70*230 mm (8.46*2.76*9.1"), without options |
| Weight: | 2.8 Kg (6.17 lb) |
| Other: | Portable option. |
|
|
|
|
| RECEIVER SECTION |
| Receiver system: |
Double conversion superheterodyne
1st IF: 21.4 MHz
2nd IF: 455 KHz
|
| Sensitivity: | 0.5 uV (20 dB S+N/N) |
| Selectivity: | 80 dB (Adjacent channel) |
| Image rejection: | |
| AF output power / impedance: | 1.2 W at 10% distortion / 10 ohm |
|
|
|
|
| TRANSMITTER SECTION |
| RF output power: |
15 W (Slightly less in portable configuration)
|
| Modulation system: | |
| Max FM deviation (Factory set): | ±5 KHz |
| Spurious emissions: | Less than 0.25 uW |
| Handset impedance / connector: | ? ohm / ?-pin |
|
|
|
|
| MISCELLANEOUS |
| Manufactured: | Finland, 1975-19xx (Discontinued) |
| Additional info: |
This early cellphone was made in several different versions, from
manual semi-duplex to automatic with full duplex.
Model number versions include:
SRP25 S/CA - Semi-duplex. Manual with rotary channel switches.
SRP25 S/CAA - Semi-duplex. Automatic channel and rotary channel switches.
SRP25 D/CAA - Full duplex. Automatic channel. (A later construction, covered here).
|
| Related documents: | |
| Modifications and fixes: | |
| Options / Accessories: |
|
?
|
Carrying case with battery pack
|
|
