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Digital / Packet

Displaying ads 41 to 47 of 47 ads in this category.
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 HomebrewDigital Communications Interface  
A few months ago I purchased a quantity of equipment at an estate sale. The ham was quite the builder. Everything I have sold has been in working condition. One of the last pieces is this interface. The paper work looks like it may have come from a handbook (station layout and accessories). Not sure of it's function, but it appears to be all here. $20.00 shipped. Will come with the article. Thanks Mike, I have more pictures. the cabinet is worth $4.00.

Listing #1733644 - Submitted on 06/21/25 by Callsign WB8PFZ - IP: ip70-187-79-184.cl.ri.cox.net
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 Clear Node VHF  
Clear Node VHF
ClearNode is a Raspberry Pi based AllStar, EchoLink and Digital Modes (DMR, P25, YSF, FCS, NXDN) simplex node with an integrated low power FM radio transceiver. You can use your analog FM HT to work AllStar, EchoLink and the Digital modes.
Used a hand full of times. I would rather be on HF
185.00 shipped and insured. I use ups and postal money order only or pick up in nj.


Listing #1732786 - Submitted on 06/13/25 by Callsign KF2GG, Modified on 06/21/25 - IP: pool-100-1-8-65.nwrknj.fios.verizon.net
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 NEW Model- Duplex Hotspot, 2.4" OLED  
NEW Model- Duplex Hotspot, 2.4" OLED Pi 4.2.3 Pi Zero 2W Board
$105.00 Plus $7 shipping
Right now, only 1 left
Duplex MMDVM Hotspot UHF/VHF P25 DMR YSF D-Star, plus more. Running Raspberry Pi Zero 3 B with 2.4"OLED
Running Pi-Star 4.2.3
Raspberry Pi Zero 2W
Pi-Star 4.2.3 loaded on SD card you just need to configure your call and Wi-Fi and other info than you're on the air.
Features:
-Duplex Hotspot
-High performance 32-bit ARM processor
-Supports DMR, P-25, D-Star and System Fusion Plus
-Fully tested
-Antennas Built onboard nothing sticking out
-Large 2.4" OLED Screen


Listing #1733370 - Submitted on 06/19/25 by Callsign W1VET, Modified on 06/19/25, Web Site: https://www,w1vet.com - IP: 163.116.250.44
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 FOR SALE: MFJ-1274 TNC 2 Packet Radio  
MFJ-1274 TNC 2 Packet Radio. For the benefit of the estate of W3BNN. $75, OBO. Will deliver within 50 miles of either zip code 22309 or 21793, otherwise add cost of actual shipping to asking price.

Listing #1733242 - Submitted on 06/17/25 by Callsign W3BNN - IP: pool-173-66-96-27.washdc.fios.verizon.net
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 WTB: Signalink cable for Icom 746  
WTB: Signalink cable for Icom 746 Non pro. I have the Signalink but not the correct cable for that particular Icom. It is called a. SLCAB8PD Interface cable that I need. Will pay for the cable plus shipping. Thanks & 73, de NZ5F

Listing #1732788 - Submitted on 06/13/25 by Callsign NZ5F - IP: 75-15-241-64.lightspeed.snantx.sbcglobal.net
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 WPSD-Duplex Hotspot P25 DMR YSF NXDN   
This Duplex Hotspot comes with the ability to change screens, this means you have access to the SD Slot on top of screen. All you have to do is use Display Editor and you can find other screen styles on Facebook Nextion page. You should read a little on how to load screens and the software. (Read on how to change displays before doing it)
$199.00 Plus $7 shipping
Shipping in less than 24 hours
Each Hotspot is tested for 24 hours before and ready to config when you get it.
There are a lot of info on YouTube about duplex hotspots, take a look this will help with setup and the advantage of duplex.
Built on WPSD
latest firmware from Pi-Star
3.5" Display
The default bit error rate on radio is less than 5%, and the default offset is 0. If the bit error rate is more than 5%, as long as the signal can be received, it can be corrected by offset.
Included:
1 Hotspot
1 Power Cube
1 Power cable usb mini
1 SD card loaded system WPSD


Listing #1732541 - Submitted on 06/11/25 by Callsign W1VET, Web Site: https://www,w1vet.com - IP: 163.116.250.171
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 Duplex Hotspot 2.4" color Display WPSD  
Duplex MMDVM Hotspot UHF/VHF P25 DMR YSF D-Star, plus more. Running Raspberry Pi 3 B with 2.4 inch display
$145.00 Plus $7 Shipping
Running WPSD
Raspberry 3 B
WPSD loaded on SD card you just need to configure your call and Wi-Fi and other info than you're on the air.
Features:
Radio/Modem Type:STM32-DVM/MMDVM_HS-Raspberry pi Hat (GPIO) or any other (GPIO board)
option don't need now; some old board need set)
Admin->Expert->Edit MMDVMHOST->RXOFFSET=0 TXOFFSET=0 (default value in pistar)
(update:2019/2 new 3225 TCXO so offset is 0)
Plus, best customer service you can find.


Listing #1732540 - Submitted on 06/11/25 by Callsign W1VET - IP: 163.116.250.171
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