What's in MIP's Shop?

Here's a few of things I've got laying around that I'd just as soon put in the hands of someone who will use it.

Page updated 20 January 2025

 

Hewlett Packard HP63917F
DC switching power supply
  Daniels Electronics MT-3 modules
 
What's in the pipeline?
 

 

 

 

Daniels Electronics MT-3 Modules

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!

 

Hewlett Packard HP63917F 14.5V 20A switching power supply

 

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.

 

What's in the pipeline?

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.


E-mail Paul KB6MIP