Question for the group - I have a new Yaesu FTM-7250DR dual band mobile rig and I'm questioning whether what I'm about to describe is normal for a Yaesu.
The squelch level required to turn off the audio is very high but only on VHF freqs. Range is 0-15 and I need to set it to 9 for VHF freqs and only 1 for UHF. This is very different than my Kenwood TM-281A, and my Anytone 77UV, both of which squelch level 1 is sufficient. This is with the same antenna (Tram 1480 base antenna), coax (LMR400) and power supply (Astron 35A linear). I can swap them back and forth and only the Yaesu needs a high squelch.
I know I'm probably the only one with the 7250DR, but is this also seen on the 100, 300 and 400 radios?
Thanks for your input.
Dave AI6VX
Is it possible there is a local source of VHF interference? Can you confirm by connecting a different rig to the same antenna and power supply in the same location?
LCM
Levi C. Maaia, K6LCM
www.levi.maaia.com +1.805.604.5384
On November 3, 2020 at 21:35:58, Dave Schmidt via SBARC-list (sbarc-list@lists.netlojix.com) wrote:
Question for the group - I have a new Yaesu FTM-7250DR dual band mobile rig and I'm questioning whether what I'm about to describe is normal for a Yaesu.
The squelch level required to turn off the audio is very high but only on VHF freqs. Range is 0-15 and I need to set it to 9 for VHF freqs and only 1 for UHF. This is very different than my Kenwood TM-281A, and my Anytone 77UV, both of which squelch level 1 is sufficient. This is with the same antenna (Tram 1480 base antenna), coax (LMR400) and power supply (Astron 35A linear). I can swap them back and forth and only the Yaesu needs a high squelch.
I know I'm probably the only one with the 7250DR, but is this also seen on the 100, 300 and 400 radios?
Thanks for your input.
Dave AI6VX
_______________________________________________ SBARC-list mailing list SBARC-list@lists.netlojix.com http://lists.netlojix.com/mailman/listinfo/sbarc-list
I confirmed it with 2 different rigs. The noise from the Yaesu is just that - noise. Like I turned squelch off. I don't hear anything intelligible. Just weird that it needs such a high squelch level compared to all my other radios. Until I plugged this in, I've never had a problem with any radio I've used - including HT's
Dave ai6vx
On Tue, Nov 3, 2020 at 9:40 PM Levi C. Maaia, K6LCM k6lcm@maaia.com wrote:
Is it possible there is a local source of VHF interference? Can you confirm by connecting a different rig to the same antenna and power supply in the same location?
LCM
*Levi C. Maaia, K6LCM*
www.levi.maaia.com +1.805.604.5384 <//+1.805.604.5384>
On November 3, 2020 at 21:35:58, Dave Schmidt via SBARC-list ( sbarc-list@lists.netlojix.com) wrote:
Question for the group - I have a new Yaesu FTM-7250DR dual band mobile rig and I'm questioning whether what I'm about to describe is normal for a Yaesu.
The squelch level required to turn off the audio is very high but only on VHF freqs. Range is 0-15 and I need to set it to 9 for VHF freqs and only 1 for UHF. This is very different than my Kenwood TM-281A, and my Anytone 77UV, both of which squelch level 1 is sufficient. This is with the same antenna (Tram 1480 base antenna), coax (LMR400) and power supply (Astron 35A linear). I can swap them back and forth and only the Yaesu needs a high squelch.
I know I'm probably the only one with the 7250DR, but is this also seen on the 100, 300 and 400 radios?
Thanks for your input.
Dave AI6VX
SBARC-list mailing list SBARC-list@lists.netlojix.com http://lists.netlojix.com/mailman/listinfo/sbarc-list
Sorry, I missed those details on your initial. Strange. That is not an issue on my FTM-400 or any of my other Yaesu radios. Hopefully someone with a 7250DR will weigh in. LCM
Levi C. Maaia, K6LCM
www.levi.maaia.com +1.805.604.5384
On November 3, 2020 at 21:45:03, Dave Schmidt (dgschmidt@gmail.com) wrote:
I confirmed it with 2 different rigs. The noise from the Yaesu is just that - noise. Like I turned squelch off. I don't hear anything intelligible. Just weird that it needs such a high squelch level compared to all my other radios. Until I plugged this in, I've never had a problem with any radio I've used - including HT's
Dave ai6vx
On Tue, Nov 3, 2020 at 9:40 PM Levi C. Maaia, K6LCM k6lcm@maaia.com wrote: Is it possible there is a local source of VHF interference? Can you confirm by connecting a different rig to the same antenna and power supply in the same location?
LCM
Levi C. Maaia, K6LCM
www.levi.maaia.com +1.805.604.5384
On November 3, 2020 at 21:35:58, Dave Schmidt via SBARC-list (sbarc-list@lists.netlojix.com) wrote:
Question for the group - I have a new Yaesu FTM-7250DR dual band mobile rig and I'm questioning whether what I'm about to describe is normal for a Yaesu.
The squelch level required to turn off the audio is very high but only on VHF freqs. Range is 0-15 and I need to set it to 9 for VHF freqs and only 1 for UHF. This is very different than my Kenwood TM-281A, and my Anytone 77UV, both of which squelch level 1 is sufficient. This is with the same antenna (Tram 1480 base antenna), coax (LMR400) and power supply (Astron 35A linear). I can swap them back and forth and only the Yaesu needs a high squelch.
I know I'm probably the only one with the 7250DR, but is this also seen on the 100, 300 and 400 radios?
Thanks for your input.
Dave AI6VX
_______________________________________________ SBARC-list mailing list SBARC-list@lists.netlojix.com http://lists.netlojix.com/mailman/listinfo/sbarc-list
Today I drove into work with the radio sitting on the seat of my truck and a mag mount dual band on the roof. Once at work, 50 miles away, VHF is as quiet as UHF. I can use a squelch setting of 1-2. However, in between on the drive in, even with the squelch set at 10, it would occasionally open as I went by industrial buildings on the freeway. There's no 'interference noise' in the audio though - just white noise, so I don't know why it's opening squelch.
This radio isn't SDR based, so I wouldn't think out of band energy would affect its receive. And at the house, hitting the band switch, all the other receive bands allowed are quiet squelch wise except for the 2M ham band.
Dave
On Tue, Nov 3, 2020 at 10:23 PM Levi C. Maaia, K6LCM k6lcm@maaia.com wrote:
Sorry, I missed those details on your initial. Strange. That is not an issue on my FTM-400 or any of my other Yaesu radios. Hopefully someone with a 7250DR will weigh in.
LCM
*Levi C. Maaia, K6LCM*
www.levi.maaia.com +1.805.604.5384 <//+1.805.604.5384>
On November 3, 2020 at 21:45:03, Dave Schmidt (dgschmidt@gmail.com) wrote:
I confirmed it with 2 different rigs. The noise from the Yaesu is just that - noise. Like I turned squelch off. I don't hear anything intelligible. Just weird that it needs such a high squelch level compared to all my other radios. Until I plugged this in, I've never had a problem with any radio I've used - including HT's
Dave ai6vx
On Tue, Nov 3, 2020 at 9:40 PM Levi C. Maaia, K6LCM k6lcm@maaia.com wrote:
Is it possible there is a local source of VHF interference? Can you confirm by connecting a different rig to the same antenna and power supply in the same location?
LCM
*Levi C. Maaia, K6LCM*
www.levi.maaia.com +1.805.604.5384 <//+1.805.604.5384>
On November 3, 2020 at 21:35:58, Dave Schmidt via SBARC-list ( sbarc-list@lists.netlojix.com) wrote:
Question for the group - I have a new Yaesu FTM-7250DR dual band mobile rig and I'm questioning whether what I'm about to describe is normal for a Yaesu.
The squelch level required to turn off the audio is very high but only on VHF freqs. Range is 0-15 and I need to set it to 9 for VHF freqs and only 1 for UHF. This is very different than my Kenwood TM-281A, and my Anytone 77UV, both of which squelch level 1 is sufficient. This is with the same antenna (Tram 1480 base antenna), coax (LMR400) and power supply (Astron 35A linear). I can swap them back and forth and only the Yaesu needs a high squelch.
I know I'm probably the only one with the 7250DR, but is this also seen on the 100, 300 and 400 radios?
Thanks for your input.
Dave AI6VX
SBARC-list mailing list SBARC-list@lists.netlojix.com http://lists.netlojix.com/mailman/listinfo/sbarc-list
More info on my new FTM-7250DR. Before I left from work on Weds, and before starting the truck, I compared the squelch settings on the Yaesu across its receive bands (it has a wide frequency receiver). Only the VHF ham band needed substantially more squelch than the other bands (you'll see this in the video). Next I tried my Kenwood TM-281 VHF only radio - it was happy with just 1 click of squelch.
I had sent a note to Yaesu tech support asking 'is this normal' and they got back to me today with "No, doesn't sound like it. Send it in". I then sent the video and asked "after watching this, are you still sure it's not working right?" Their reply was "thanks for the video, it helped. Sensitivity sounds good but indeed your squelch could be helped with a re-alignment. Go ahead and send it in."
Tomorrow I'm getting together with Denney (VCARC president) as he has the same radio and we're going to compare mine to his, but regardless I'm going to go ahead and send it in hoping they can make it behave like I think it should.
Here's the demo video. https://youtu.be/5ga4ieRChmk
Dave ai6vx
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Dave Schmidt -
Levi C. Maaia, K6LCM