Item Details:
SD-171/SD-174
Maxon
Synthesized
5 Watt RF Data Link Telemetry Module
Features:
- Synthesized
Frequency Tuning
- 1
or 5 Watts Programmable
RF Output Power
- 148-174
MHz VHF 450-490 MHz UHF
- Programmable
up to 16 Channels (via dip switch or serial
command)
- CTCSS / DCS
Tone Signalling
- 2-Tone
Decode
- Scan / Power
Save
- LED Status Indicator
Time-out-timer / Busy Ch Lockout
- Marked Idle
/ TX Delay
- Courtesy Beep
- Programmable
Wide/Narrow Band
- Operates
from 9V to 18 VDC
- Complies with
NTIA Specifications
- Die-Cast Aluminum
Housing
- Time-Out-Timer
Function
- 15-Pin
Interface Connector (DB15) (See connector pin-outs below)
- PC Programming
via Software and Cable (optional)
General
Specifications:
|
Maxon
VHF SD-171 |
Maxon
UHF SD-174 |
| Frequency
Range |
148-174
MHz |
450-490
MHz |
| FCC
ID Number |
pending |
pending |
| FCC
Parts |
Parts
22, 74, 90.210 |
| Channels |
1
to16 dip switch selectable or external serial command |
| Channel
Spacing |
12.5
/ 15 / 25 / 30 KHz |
12.5
/ 25 KHz |
| Channel
Stepping |
5.0
/ 6.25 / 7.5 KHz
|
5.0
/ 6.25 KHz
|
| Channel
Spread |
26
MHz |
40
MHz |
| Frequency
Stability |
±2.5
ppm
|
| Operating
Temperature |
-22°
to +140° F (-30° to + 60° C)
|
| Storage
Temperature |
-40°
to +176° F (-40° to + 80° C)
|
| Input
Voltage |
9V
- 18V DC, 13V nominal
|
| Attack
Time |
RX
to TX - 20 ms / TX to RX - 20
ms (no power saving)
|
| PLL
Lock Time |
10
ms |
| Squelch
Attack Time |
RF
Level @ Threshold - 40 ms / RF Level @ Threshold +20dB - 30
ms
|
| Squelch
Decay |
5
ms min / 20 ms max
|
| Baud
Rate GMSK |
Up
to 9600
|
| Baud
Rate FFSK |
Up
to 4800
|
| Dimensions
[HWD] |
4-5/16"
x 2-5/16" x 1-1/4" [125 x 58 x 32 mm]
|
| Weight |
8.9
oz [253 gm]
|
| Materials |
Die-cast
Aluminum
|
| IC
Certification Number |
pending
|
pending
|
ANSI/TIA/EIA-603
Receiver Specifications:
|
Maxon
VHF SD-171 |
Maxon
UHF SD-174 |
| Frequency
Stability |
±2.5
PPM |
| Sensitivity
(12dB SINAD) |
0.25
uV VHF |
0.25
uV UHF |
| Sensitivity
(20dB Quieting) |
<
0.5 uv @ center channel |
| Selectivity |
70dB
(25 KHz) / 65dB (12.5 KHz) |
| Spurious
Rejection |
-65dB
|
| Intermodulation |
-70dB
|
| Audio
Output |
250
mV @ 8 Ohms (filtered) 250 mV RMS @ 10k Ohms (unfiltered)
|
| Audio
Distortion |
<
5% @ 1 KHz
|
| Hum
& Noise |
-40
dB
|
| Input
Impedance |
50
ohms |
ANSI/TIA/EIA-603
Transmitter Specifications:
|
Maxon
VHF SD-171 |
Maxon
UHF SD-174 |
| RF
Power Output. |
1 or 5 Watts
programmable
|
| Frequency
Stability |
±2.5
PPM |
| Modulation |
11K0F3E
/ 16K0F3E / 19K6F3E |
| Spurious
& Harmonics |
-60dBc |
| FM
Hum & Noise |
-40dB
|
| Audio
Distortion |
<2%
@ rated modulation |
| Modulation
Limiting |
2.5
KHz max. [12.5 KHz] , 5 KHz max. [25 KHz] |
| Unfiltered
Modulation |
100
mV RMS (input) 7 mV RMS (filtered mod input) |
Maxon data telemetery two way radio utilize the latest technology in its
design and manufacturing. Ideal for any system design where high performance RF specifications, fast TX/RX attack times, and compact size are a requirement. High specifications permit integration into systems demanding the utmost performance in congested frequency environments.
