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professional email list ...
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Building a Buyers List Fo...
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Packet Mode Questions
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A few notes about how to ...
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New mrefd release 0.3.6
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new version of mvoice
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new mrefd release 0.3.5
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PTT & OTA Requirements
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M17 Reflectors Beta
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Hello KC1AWV
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  professional email list Marketing and Local Small Business
Posted by: chandna1 - 2 hours ago - Forum: General discussion - No Replies

The three standards in  professional email list  promoting are to interface, educate and develop. Business messaging is sending email correspondences in an expert way to an invested individual. It's data that your crowd finds significant. In expert emails, do not spam. At the end of the day. get authorization to send data. Furthermore, better what kind of data they are  professional email list  keen on accepting. At the end of the day don't send data about exemplary muscle cards to clients that need data about the most recent gas saving highlights of the most recent models. Or on the other hand send data to a lodging guest that is a financial  professional email list  specialist about wedding courses of action.

In the event that you do you'll lose  professional email list  validity and your messages will be erased. More than 147 million individuals use email and most use it ordinary. The financial matters of email is portions of pennies on the dollar contrasted with conventional techniques. What's more, you are saving the planet. Utilizing a specialist co-op can be a smart  professional email list  thought. It will deliver simple to-utilize formats. They can fortify your image character. The email is addresses is just to the beneficiary. What's more, you can likewise oversee rundown and every day add and eliminate addresses. In general this will help your outcomes  professional email list  and permit you to follow them with more precision.
[Image: Email-Database.gif]
The counter, the server, the passage way, an  professional email list  update to a desk area, a visitor book, site join on correspondence and administrations. Deals calls and all materials. All touch focuses should be  professional email list  misused. May it a test, a game, a test. Live prizes to clients and representatives. Make it fun. In your correspondence keep your  professional email list  logo and brand character, portray your email substance and how frequently

Get some information about clients interest. How would you  professional email list  need to help them to be pertinent? Discover what they need. Request extra data at whatever point conceivable. The more exact and  professional email list  individual the better.

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  Building a Buyers List For job email list
Posted by: chandna1 - 2 hours ago - Forum: Technical - No Replies

A typical technique for getting a  land purchasers job email list assembled is to get on expert wholesalers' rundowns and track the aftereffects of their exchanges. The cycle begins by finding these wholesalers and typically they are related with neighborhood land  job email list   venture clubs ("REIAs") as corporate individuals or they simply go to the gatherings.

These aces will once in a while have a  job email list stock rundown - the bigger the rundown suggests the less genuine articles they may really have. All things considered, if there are genuine articles they will be sold rapidly to ceaseless purchasers who recovery properties. The other  job email list chance is he may have an awful standing or he simply lacks individuals on his email and contact list. Yet, a speculator ought to buy in to his mailing rundown and take his rundown when he offers it.

There might be some real job email list  arrangements in his rundown or messages and in the event that you are in a purchasing mode, look at every one as you get them. Be that as it may, in the event that you are beginning or wholesaling yourself, there presumably is little room job email list staying for you to flip the property again to another purchaser. Normally these numerous flips are finished by a gathering of wholesalers who have worked with one another and have some level of trust with one another. They generally work to discover job email list arrangements and afterward call or email their amigos to re-rundown and re-email the contributions to their own rundowns. Once in a while there can be 2 - 5 speculators in a daisy chain of markups, every one of  job email list whom get paid at the end!

Generally these job email list master wholesalers are extremely, hush-hush about sharing their purchasers basically on the grounds that it is their fundamental type of revenue. Some are absolutely inconsiderate and request proceeding with reference expenses in the event that you close with one of their purchasers when they wholesaled an arrangement for you.

[Image: Email-Database.gif]
 This is truly taking the job email list issue to a nonsensical point and except if you consented to a type of arrangement that you consented to giving them progressing reference charges, don't accept that job email list  this is the standard method of experts working together.

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  New mrefd release 0.3.6
Posted by: n7tae - 01-19-2021, 08:37 PM - Forum: Reflectors - No Replies

This is a non-essential release and is more efficient at validating incoming packets. It will save cpu cycles and the savings will be directly proportional to the amount of traffic your reflector handles.

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  Packet Mode Questions
Posted by: akbat - 01-17-2021, 03:54 AM - Forum: Technical - Replies (2)

The section of the specification documentation on packet-mode say puncturing uses a 7/8 matrix (1, 1, 1, 1, 1, 1, 1, 0) but the Physical Layer section discusses 2 different puncturing matrices that are much longer. (P1 for the LSF and P2 for all other frames) Which is actually used for packet-mode frames? I assume a packet-mode LSF uses P1 as described.

The specs also say a packet-mode super-frame has 798 bytes of payload, but I can't figure out how regular frames fit into this evenly or if subsequent frames include LICH chunks like with stream-mode.

Finally, I gather that LICH refers to the data in the LSF, but what does LICH actually stand for?

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  Hello KC1AWV
Posted by: HB9TVW - 01-05-2021, 08:42 AM - Forum: Reflectors - Replies (1)

Hello KC1AWV

Can you Please add this Reflector Name M17-CHI Reflector

url:  [url=https://m17-lom.myddns.me:24033/][/url]m17ch-italia.ddns.net/m17/
IP6: none
Sponsor: HB9CSR Basel Group
The country: Switzerland

Sysop: HB9TVW

Thank you, 73s

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  M17 Reflectors Beta
Posted by: KC1AWV - 01-01-2021, 11:42 PM - Forum: Reflectors - Replies (3)

The M17 Reflectors Beta is now open to the public!


Please register your reflectors there. Requests placed in the forums will no longer be processed.

Thank you, and Happy New Year!

Steve KC1AWV

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  Reflector Registration
Posted by: zl2ro - 12-23-2020, 10:14 PM - Forum: Reflectors - Replies (1)

Hello KC1AWV

Can you Please add this Reflector Name M17-NZ2 OR M17-NZL-1

URL: https://m17.dvnz.nz
IPv4: [font=-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol"] [/font][font=-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol"][/font]
IPv6: none
Port: 17000
[url=https://www.whatismyip.com/][/url]Sponsor : DVNZ.NZ
Country : New Zealand
Sysop : Phil Garside ZL2RO

I made a mistake in my first request please accept my apologies.

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  KISS Protocol
Posted by: WX9O - 12-23-2020, 05:50 PM - Forum: Technical - Replies (3)

I am starting to document an implementation of M17 over KISS.  This entails using a KISS TNC (modem) for M17 baseband modulation and demodulation.

This is very much a work in progress at the moment, and major design decisions are still to be worked out.

Please refer to the KISS protocol documentation here: http://www.ax25.net/kiss.aspx

We will discuss both audio streaming mode and packet mode.

There are a number of design trade-offs.  KISS is an acronym for "Keep it simple, stupid."  And it's hallmark is that very little protocol work is actually done in the KISS TNC.  Only layer 1 (physical layer, baseband modulation) and layer 2 (HDLC framing and CSMA) is typically done in a KISS TNC.  The packet, typically an AX.25 packet, is sent over a SLIP-encoded channel with a 1-byte header.  The lower nibble of the header defines the KISS data frame type.  A data frame is represented by frame type 0.  There are 5 control frames defined.

The upper nibble of the header byte defines the modem identifier for systems with multiple modems.  The default is 0.  We can consider different M17 interfaces as distinct modems in a KISS TNC implementation.

M17 is a bit more complex than AX.25 over AFSK or FSK using HDLC framing.  M17 defines 3 frame types (link setup, stream, packet), and the stream frame contains two data channels, the LICH and the payload (possibly 3 channels if you consider V/D mode).  The data link layer requires both a source and destination identifier.  The first issue we run into is that KISS modems handle the physical and data link layer, and there is no protocol defined for setting things like source, destination or, should it be used, encryption nonce.

We are going to define three (3) modem types.  Two for packet and one for streaming.  We are also going to define extended KISS commands for setting source, destination and nonce.


In order to provide the most backwards-compatible implementation, packet mode using TNC identifier 0 will send packets with the source identifier set to a device type identifier, similar to the APRS TOCALL identifier.  The destination address is "M17PACKET".  Packet type 0, RAW, will be used for the packet payload.  The TNC will be responsible for constructing the packet frame, attaching the type field and computing the CRC.  It is also responsible for unwrapping received packet frames, dropping packets with invalid CRCs and passing received raw data back to the host, discarding the packet type identifier and CRC.

The goal of this mode is that all applications that currently function with KISS TNCs can use M17 as the physical and link layer.  Station identification must be done inside the payload, such as with an AX.25 MYCALL identifier.


For M17 modems, modem identifier 1 is the full-featured M17 packet interface.  It expect to receive a single frame of data containing a 30-byte link setup frame followed immediately by a 3-800-byte payload.  The payload includes the type field and CRC. It returns the same data to the host when packet data is received.


Modem identifier 2 is the M17 stream interface.  It expects to receive a single 30-byte LSF frame, followed by a series of 20-byte data frames.  The last frame in the sequence must have the end-of-stream bit set.

Received stream packets are sent to the host in the same manner.  The TNC must provide a packet every 40ms.  The host must be able to handle missing/dropped packets or streams that end without an EOS bit set, possibly due to loss of signal mid-stream.  [This needs to be more fully fleshed out.]

The LSF is 30 bytes.
Stream data is 20 bytes (FN, payload, CRC).

For host to TNC:

In streaming mode, the TNC receives a single 30-byte LSF payload.
It verifies that the CRC is correct and that the packet/stream bit indicates "STREAM".
It starts transmitting the preamble, then LSF.
The host sends 20-byte data frames containing Codec2 audio payload, frame number and CRC.
The TNC checks the FN for the end-of-stream indicator, and optionally checking the CRC.
The TNC will have a backlog of up to 2 frames of audio data, collected while sending the preamble and LSF.
The TNC can insert up to 2 frames with empty payload data (and proper CRC) if the stream is interrupted. (What to do with FN?)
The TNC will end the stream if 3 or more frames have been missed.  It will end the stream by sending an empty payload with the EOS bit set.


For packet mode, the TNC will receive a 33-830 byte packet containing LSF and packet payload.
It will send the preamble, LSF and split the packet into frames.

For TNC to host:

For packet mode, the TNC will capture the LSF and payload.
It will verify the CRC on both the LSF and the payload.
By default, the full-featured M17 packet modems (id 2) should operate in PASSALL mode, allowing the host to drop packets with bad checksums.

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  PTT & OTA Requirements
Posted by: WX9O - 12-23-2020, 04:18 AM - Forum: Technical - Replies (1)

This is regarding the OTA protocol.

When PTT is keyed, what are the requirements?

What is required to happen if PTT is released while the preamble is being sent?

What is required to happen if PTT is released while the link setup frame is being sent?

What is the expected behavior when PTT is released while an audio stream is in progress?  Are there any requirements for how quickly the radio must stop transmitting?

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  new mrefd release 0.3.5
Posted by: n7tae - 12-22-2020, 03:53 AM - Forum: Reflectors - Replies (2)

This is not a critical update. 0.3.5 will allow multiple clients with the same IP and callsign to link as long as their connection ports are different.

Both mvoice and DudeStar use ephemeral ports making this possible. There is a very small chance (~1 in 10^4) that a subsequent client might try to connect on the same port as an existing client. If this happens, it will be refused. The solution is simply to restart the client so that it will choose another ephemeral port. This feature is configurable, so after you do a "git pull", be sure to rewrite your configuration file using "./rconfig".

This release also keeps its list of peers in alphabetical order, so the dashboard peers table will also be alphabetized.

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