VHF MSR Channel Elements
I know this is a long shot, but does anyone have a pair of channel elements crystalled for 147.180 TX, 147.780 RX for the MSR-2000 they'd like to sell? I thought I'd check here before I order a set
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terry dalpoas
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#214832
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Re: Astron RM-50M conversion
A Victron Smart with a Victron SmartShunt right at the battery (such that
the shunt only sees battery current and not load current) is a reasonable
approach if you have lead-acid (flooded or AGM). See
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Matthew Kaufman
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#214831
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Re: Andrew DB201 Antenna
A DB 201 or 212 is the best on lowband...there are a lot left abandoned at
sites in still good shape. You can probably find one looking
around...cheaper than a new one but it WILL work
Chris
By
Chris Boone WB5ITT
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#214830
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Re: Andrew DB201 Antenna
Kreco , stupid auto correct.
Ken Pearce
N4KCD
Commerce Township, MI
By
Ken Pearce
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#214829
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Re: Andrew DB201 Antenna
Oreo is good and I use either Tessco or Talley.
Ken Pearce
N4KCD
Commerce Township, MI
By
Ken Pearce
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#214828
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Re: Andrew DB201 Antenna
I believe Sinclair and Comprod still make their versions.
Chuck
WB2EDV
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Chuck Kelsey
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#214827
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Re: Andrew DB201 Antenna
Kreco makes both folded monopole ground plane and coaxial dipoles for VHF lo band. For something a little less expensive Child¡¯s Antenna Company makes a VHF lo coaxial dipole.
By
Mike
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#214826
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Re: Astron RM-50M conversion
Since I'm not stuck on the Iota, a Victron Smart IP22, IP43, IP67 12/30 or 12/50 - are spec'd to 14.7v max.
Quick review of battery products...
LiTime - max V = 14.6
BattleBorn = 14.7
WattCycle =
By
Jim Aspinwall
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#214825
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Andrew DB201 Antenna
I've been tasked by our Red Cross regional director to get a 47 MHz antenna installed for "low band" VHF use on one of their buildings.? It seems to be a difficult band to find commercial antennas
By
Marlo Montanaro - KA2IRQ
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#214824
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Re: Motorola SLR5700 DMR Repeater
Hey Bob, don¡¯t worry I¡¯ve had my turn in the bucket. This list has some extremely knowledgeable guys on here and I know you, your background and your technical background, they don¡¯t. I
By
Hudson, John@CalOES
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#214823
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Re: THREAT TO 222-225MHz Spectrum Getting Worse with additional licenses issued outside of California
On Sat, Apr 26, 2025 at 04:56 PM, Chuck Kelsey wrote:
>
> NOTHING is safe if "big money" wants it... NOTHING.
>
> Chuck
>
>
>
> On 4/26/2025 4:25 PM, John N. Hudson III via groups.io wrote:
>
By
Mike Sullivan
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#214822
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Re: THREAT TO 222-225MHz Spectrum Getting Worse with additional licenses issued outside of California
NOTHING is safe if "big money" wants it... NOTHING.
Chuck
By
Chuck Kelsey
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#214821
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Re: THREAT TO 222-225MHz Spectrum Getting Worse with additional licenses issued outside of California
Bob we have discussed this and you have a valid point. But as you know the spectrum is crowded in SoCal with only a few High Level channels, Trustees are limited to 3 pairs but they can co-channel
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John N. Hudson III
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#214820
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Re: Motorola SLR5700 DMR Repeater
Hi Guys
I am Sorry my reply to the original question should have been: Check your repeater settings, so it does not beacon,
WOW I got it !! Sorry I missed the post from another SL5700 user
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bob ehrhorn
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#214819
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Re: PD526 Duplexer Tuning
Ignore the first two images close to the top. They are earlier plots.
By
Part 15 Engineer
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#214818
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Re: Help with out of range programming a Motorola GP300
Hello Ron,
A couple things here. The "1" in the last of the model number is 433 MHz not 443 MHz. I believe that with the shift method, or hex edit, will only let you go down in frequency, not
By
Teton Amateur Radio Repeater Association (TARRA)
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#214817
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Help with out of range programming a Motorola GP300
I was recently given a pair of GP300 HTs and am trying to get them reprogrammed for some new hams in the area.
I have the programmer and RSS and can download the codeplug.? But, these are 398-443
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Ron
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#214816
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Re: PD526 Duplexer Tuning
A number of things:
1. You¡¯re sweeping 30 MHz wide with only 401 points. You need to either narrow down your sweep just to the range of interest, use more points, or more likely a combination of
By
Jeff DePolo WN3A
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#214815
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Re: PD526 Duplexer Tuning
Your picture tells a lot. My guess is that the cans on the same side of the duplexer are over coupled because of improper coax length between the cans. In other words, with the proper 1/4 wavelength
By
John
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#214814
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Re: PD526 Duplexer Tuning
Here is the plot for a single cavity.
[email protected]> wrote:
By
Part 15 Engineer
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#214813
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