Re: VHF MTR2000 Poor Receive Performance
Okay - - Yea - -115dBm for 12 dB SINAD is pretty numb. Many receivers are much better at -120 (something) or so for 12dB SINAD.
By
Kevin Custer
·
#195325
·
|
Re: Somewhat OT... imaging a hard drive...
IDE drive device ID/order is determined by the controller (typically only one is present). SATA drive device ID/order is determined by which SATA port/cable a drive is connected to. The BIOS has no
By
Jim Aspinwall
·
#195324
·
|
Re: VHF MTR2000 Poor Receive Performance
The MTR is reading 0.4uV (115 dBm) at 12DB SINAD. I¡¯ve aligned the repeater 3 times now and even tried directly to the port on the receiver module. I must be doing something wrong, my UHF MTRs are
By
Jared Smudde
·
#195323
·
|
Re: TKR-851 power issue
Can you give me some more details on how to make these measurements? Brandon Vetter Office 208-714-4651 Cell 208-625-0892 www.Inter-Wave.net<http://www.inter-wave.net/>
By
Brandon Vetter
·
#195322
·
|
Re: TKR-851 power issue
Brandon Vetter Office 208-714-4651 Cell 208-625-0892 www.Inter-Wave.net<http://www.inter-wave.net/> [cid:image001.png@...] Sent: Wednesday, November 2, 2022 6:09 AM To:
By
Brandon Vetter
·
#195321
·
|
Re: VHF MTR2000 Poor Receive Performance
I may have missed something but have you tried this ? Hook a transceiver to the antenna and see what kind of range you are getting.? If as expected, hook the repeater receiver input directly to the
By
Ralph Mowery
·
#195320
·
|
Re: Got a trimble thunderbolt E need more info.
Thanks Cliff, will order one as soon as I have the trimbler working. Still searching for a suitable 24 volt power supply as my trimble has the internal voltage controller that takes care of the +5 +12
By
Pierre Martel
·
#195319
·
|
Re: TKR-851 power issue
Connect the repeater to a power supply that can tell you how much current is being drawn. Determine if it¡¯s low or in the expected range. If low, troubleshoot the DC power circuitry. If it¡¯s as
By
Mike / K5JR
·
#195318
·
|
Re: VHF MTR2000 Poor Receive Performance
Jared, I think your SM allows you to read dBm directly.? Please consider using that measurement unit instead of uV, because it requires less conversions and makes more sense in the end. Taking your
By
Kevin Custer
·
#195317
·
|
Re: VHF MTR2000 Poor Receive Performance
Yes, the TX side was terminated into a dummy load, I forgot to mention that.
By
Jared Smudde
·
#195316
·
|
Re: VHF MTR2000 Poor Receive Performance
Hopefully he did the test below with the TX disabled. If not, they don't tell us much. Mike WM4B
By
Mike Besemer - WM4B
·
#195315
·
|
Re: TKR-851 power issue
Did you measure the voltage at the PA transistor? I'd look at that first. Also measure the exciter output and see what it's doing. If I recall correctly, the repeater uses a relay to switch in and out
By
Chris Boone WB5ITT
·
#195314
·
|
TKR-851 power issue
Hi Group, I have a TKR-851 that I thought had bad finals. It had about 2 watts output. Installed a new transmitter board with new driver and final transistors and now I get 3 Watts output. If I drop
By
Brandon Vetter
·
#195313
·
|
Re: VHF MTR2000 Poor Receive Performance
Hello Jared, I have not been following these threads very carefully, but the thought occurred to me wondering if your transmitter might have spurs when connected to the duplexer? It would be easy
By
John
·
#195312
·
|
Re: VHF MTR2000 Poor Receive Performance
So last night, I measured the MTR at 0.4uV at the receiver port and 0.5uV at the duplexer antenna port. I injected a signal into the receiver port of the MTR that had just barely had no noise and when
By
Jared Smudde
·
#195311
·
|
Re: Somewhat OT... imaging a hard drive...
Hi guys, Taxing the brain, With XP, one had to mod the registry to go back to the bios for the disk driver if the motherboard IDE or SATA driver changes. Then at first boot on the new hardware, it
By
Alan Beard
·
#195310
·
|
Re: Somewhat OT... imaging a hard drive...
I asked the seller which version of Ghost he was providing as I was looking for 7 or later. He replied "I think this is version 3 or older, Not what you are looking for." But thanks for the
By
M M
·
#195309
·
|
Re: Connecting Yaesu DR2X Repeater to Raspberry Pi/Allstar?
Thanks Steve. 73, Chris <https://www.qrz.com/db/ve3rwj> VE3RWJ on qrz.com <https://twitter.com/smartguitar1> Follow Me On Twitter Sent: November 1, 2022 9:09 PM To: [email protected] Subject:
By
Chris Smart <ve3rwj@...>
·
#195308
·
|
Re: Connecting Yaesu DR2X Repeater to Raspberry Pi/Allstar?
Here is a link to a program called PiTone which can be used to create a CTCSS tone.? PiTone runs on a Raspberry Pi (can be the same one that is running Allstar).? It uses a D/A converter connected
By
Steve-N8AR
·
#195307
·
|
Re: VHF MTR2000 Poor Receive Performance
Jared, We need to quantify why (and when) the repeater is "deaf". Next time you're at the site, do the following: 1 - Disconnect the repeater from the duplexer. 2 - Connect the repeater antenna to the
By
Kevin Custer
·
#195306
·
|