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Re: GPIO & DMK URI
Can I make a suggestion?? Of course, I don't know your specific situation but our experience is that jerkoffs who do that crave negative attention and would actually jam just to get us to turn the repeater off; If you can sort it out, a much better solution is to switch to an alternate input so they have to listen to you but can't do anything. Trust me, drives them crazy... |
Re: Recommended VHF transceiver to use on NB 12.5 kc splinter frequencies
The Motrola?CDM series will also narrowband and are great mobile radios The CDM 1250 and CDM 1550 (my favorite) Lloyd KO4L On Sun, Mar 16, 2025 at 11:14?PM n5qs via <ygroup=[email protected]> wrote:
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Re: Recommended VHF transceiver to use on NB 12.5 kc splinter frequencies
开云体育Almost any Kenwood with the model TK-7xxx will do those splits.The Kenwood repeaters TKR-750 and 751 will also do those splits. Roger, N5QS On 3/16/2025 8:07 PM, TIM HARDY via
groups.io wrote:
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Re: Recommended VHF transceiver to use on NB 12.5 kc splinter frequencies
Hello Tim,
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For mobile radios, the M1225 and CM300 will both work for narrow band. I would be very sure the P1225 and CP300 portables will also. Mick - W7CAT ----- Original Message -----
From: "TIM HARDY via groups.io" To: [email protected] Sent: Sunday, March 16, 2025 07:07:14 PM Subject: [repeater-builder] Recommended VHF transceiver to use on NB 12.5 kc splinter frequencies Hi folks,out / 146.0875 in. (2.5 kc / 12.5 kc ch. spacing) My rpt. is a Motorola Quanter."splinter" fxs. The radios must have the proper "IF" filters on rec. for NB.that if they are labeled "2.5 kc" they may be usable. I have not checked the Astro Spectra radios yet. (FCC id #)(So they can utilize the rpt...LOL) I appreciate any guidance or transceiver advice.-- Untitled Document |
Re: Recommended VHF transceiver to use on NB 12.5 kc splinter frequencies
When the FCC (AKA Motorola) mandated narrow band for Part 95 services, they forgot that a small number of VHF channels, primarily VHF mutual aid channels required 2.5 KHz resolution.
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Because manufacturers could continue to sell older model radios for a time, there are exceptions in that some VHF radio equipment may not properly resolve certain channels, which require the radio to resolve to 2.5 KHz channel steps.
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(From my website:)
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Examples are
VCALL -10 155.7525 MHz, VTAC - 12? 154.4525 MHz and VTAC - 14? 159.4725 MHz These channels cannot be evenly divided by radio synthesizers, which do not resolve to 2.5 KHz. Additionally, there are other VHF channels on these "7.5 KHz channel centers" which may be troublesome. ?
I think you will soon realize that a lot of commercial VHF radios sold decades ago will be incompatible with your channel center.
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The Real RFI-EMI-GUY |
Recommended VHF transceiver to use on NB 12.5 kc splinter frequencies
Hi folks,
I'm in Wa. state and WWARA has authorized me a NB rpt. pair 146.6875 out / 146.0875 in. (2.5 kc / 12.5 kc ch. spacing)
My rpt. is a Motorola Quanter.
I now am searching for compatible radios that will operate on the "splinter" fxs.?
The radios must have the proper "IF" filters on rec. for NB.
I have heard that the Motorola CM300 "May" be usable for NB use.
I have a few Mot ASTRO Spectra mobile trunk mount radios. I have read that if they are labeled "2.5 kc" they may be usable.
I have not checked the Astro Spectra radios yet. (FCC id #)
Any ideas of compatible radios for me to tell our radio club about? (So they can utilize the rpt...LOL)
I appreciate any guidance or transceiver advice.
Tim
AE7TH
Vashon Is. Wa.? |
Re: Ctcss Board
One wire, ground, should be easy to figure out. Your +V should also be easy to trace. The output should be coming from the pot through a electrolytic capacitor... I don't think there's a line you need to ground to turn the encoder on but there may be. Just tie it to ground.. .. hooking it up to a modern synthesized radio, I would use switched voltage to feed to the +V... That way the only time the tone is being outputed is when the transmitter's keyed. It could cause issues if the tone is modulating the phase lock loop during receive.. Ask me how I know ?? Good luck with it Chris WB5ITT? On Sun, Mar 16, 2025, 1:10 PM Carl Beaudry via <va2cmb=[email protected]> wrote:
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Tait TB-9300 Repeaters for sale
Good afternoon, I have a couple of the Tait TB-9300 VHF repeaters for sale - currently they are set for Tier 3 DMR Trunking.? These are complete units - reciter, 100w PA, and 48vdc to 24vdc power supply. These are dated May 2013 and working when removed from service.? The reciter says 148-174 MHz and the PA 136-174 MHz.? I have programmed ham frequencies down to 145.270 TX / 144.670 RX and the VCO stayed locked on the reciter unit. Does anyone have an interest in these either as a complete unit or as spare parts?? I'm willing to part them out if someone needs parts.? Module / parts would include the PA, Receiter, power supply and chassis.?? Contact me off list with offers or for pictures.?? James Adkins 417-834-5787 (cell) Amateur Callsign = KB0NHX GMRS Callsign = WROQ478 "Raise the standards . . .?? If the people lead, eventually the leaders will follow" "Those saying it can't be done should get out of the way of those doing it" - Chinese Proverb |
Re: Ctcss Board
开云体育Thank you Chris, ? At least now I know the frequency table of the CTCSS IC. ? I will know have to do some reverse engineering to figure-out what wire does what. ? Unless a member would know what brand and model it is? ? But like a member suggested it is maybe home –made. ? Still nicely made. ? Thank you all for ?looking. ? And best 73 Carl VA2CMB ? ? De?: [email protected] [mailto:[email protected]] De la part de Chris Boone WB5ITT via groups.io ? ? On Sat, Mar 15, 2025, 7:10 PM Carl Beaudry via <va2cmb=[email protected]> wrote:
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Re: Some GE Delta S vhf radios - free
No ...16/32 channel synthesized...smaller box, different control head .. ?Chris WB5ITT? On Sat, Mar 15, 2025, 10:02 PM pu5aom.t via <pu5aom.t=[email protected]> wrote:
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Re: Ctcss Board
It is but dip switch selectable... it'll work Chris WB5ITT? On Sat, Mar 15, 2025, 7:25 PM Chuck Kelsey via <wb2edv=[email protected]> wrote:
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Re: Ctcss Board
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Re: Ctcss Board
On Sat, Mar 15, 2025, 7:10 PM Carl Beaudry via <va2cmb=[email protected]> wrote:
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Re: running autopatch
I have been using Ooma Teleo for my landline for some time. You buy their ATA device and pay about $7 a month for taxes. It works well for outgoing DTMF. There may be some problems with incoming DTMF. You might want to test it out.
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On Sun, Mar 2, 2025 at 11:15 PM, Chad Nelson wrote:
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The Real RFI-EMI-GUY |
Re: running autopatch
开云体育
? Yeah, that’s what my experience was like when MJ first came out.? It was free, so my expectations were pretty low going in.? Nowadays, for $1 a month for a number and less than half a cent per minute, get a SIP trunk.? Perfectly serviceable ATA’s (Linksys, Obihai, et al) are around $20 on eBay. ? ??????????????????????????????????????????????????????????????????????????????? --- Jeff WN3A ? |
Re: running autopatch
Magic Jack is a VOIP ATA that uses a PC for the processing...the MJ is an external dongle that provides the analog output to a RJ11...it is not a standalone ATA iirc..one local radio station used it for remote control dial up to a Burk...worked 50% of the time? On Sat, Mar 15, 2025, 2:34 PM Karl Shoemaker via <srg734=[email protected]> wrote:
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GPIO & DMK URI
I'm looking for some help with getting a GPIO command setup for a repeater disable function. We have had a little bit of interference from so people and want to be able to turn the repeater off for a few to try and get them to stop. I'm running a Pi 3B+ with a DMK URI with ASL3, has anyone here done this before?
Thanks,
KC0AMP |