Hewlett Packard HP63917F DC switching power supply |
Daniels Electronics MT-3 modules | |
---|---|---|
What's in the pipeline? |
I have a surplus of various VHF high band and UHF MT-3 modules for Daniels Electronics base station / repeater systems.
They are:
Model # |
Serial # |
Cal Date |
Critical measurements |
RECEIVERS |
|||
VR-3/160-SNA200 |
16679 |
18JAN2025 |
146.5200 MHz, -120.7dB/12dB SINAD (wideband modification) |
VR-3/160-SWA200 |
12292 |
25MAR2022 |
167.0250 MHz, -121.9dB / 12dB SINAD |
UR-2 |
10808 |
N/A |
crystal-based, labeled for 466.8800 MHz |
UR-3H420-SNC200 |
note 1 |
25MAR2022 |
415.0625 MHz, -115.2dB / 12dB SINAD |
UR-3/460-SNC200 |
11410 |
25MAR2022 |
456.4250 MHz, -118.3dB / 12dB SINAD |
UR-3/460-SNC200 |
11411 |
25MAR2022 |
456.6625 MHz, -119.0dB / 12dB SINAD |
UR-3/460-SNC200 |
11412 |
25MAR2022 |
456.4250 MHz, -116.8dB / 12dB SINAD |
UR-3/460-SNC200 |
11440 |
25MAR2022 |
456.6625 MHz, -119.3dB / 12dB SINAD |
TRANSMITTERS |
|||
VT-3/160-SNA800 |
15439 |
18JAN2025 |
169.8750 MHz, 8W, 3.0kHz deviation (wideband modification) |
VT-3/160-SWA800 |
13358 |
13MAR2022 |
146.5200 MHz, 8W, 3.0kHz deviation |
UT-3/460-SWC800 |
10254 |
N/A |
note 2 |
UT-3/420-SNC800 |
14071 |
14MAR2022 |
443.9750 MHz, 8W, 3.0 kHz deviation (wideband modification) |
UT-3/460-SNC800 |
12574 |
13MAR2022 |
443.9750 MHz, 8W, 3.0 kHz deviation (wideband modification) |
Notes on table:
1) The cover on this module is not the original cover.
2) This unit has audio processor board part # 43-911913. I do not have documentation for calibrating this assembly. The unit is functional, as far as I can tell
Most transmitter modules can be supplied in either wideband (+/- 5 kHz) or narrowband (+/- 2.5 kHz) modulation bandwidth.
I can provide detailed information about any of the above, and will bench test them with my HP8935 service monitor before selling them. If desired and possible, I can tune them to a particular operating frequency for you.Please also note that I am open to trading for other MT-3 gear. Specifically, I am looking for wideband MT-3 receivers in VHF and UHF, as well as power amplifiers in VHF and UHF. If you've got some you don't know what to do with, and need something I have, let's talk!
Believe it or not, this switching power supply was for years the only power source for a 220 MHz repeater in southern California. I cleaned it up from that use, tested it to make sure it does what it's supposed to do, and kept it for my own use.
This supply has adjustable output voltage (+/- 5% from 14.5 VDC), remote voltage sensing capability, adjustable current limiting, and over-current shutdown capability.
No manual ... sorry.
I was using this as my work bench DC source up until a couple of years ago. It is stable, quiet (electronically ... the cooling fan is somewhat noisy in an otherwise quiet room), efficient, and reliable. I never had any trouble with it.
Kenwood TK-630/830 dual band mobile radio system.
Motorola MT1000 VHF portable
Stay tuned!
Questions? Drop me a line. I will consider trades on any of the equipment that appears on this page.