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We're making the trip again all the way from Southern California. Assuming we get there, we'll have a variety of gear available including; four lowband Syntor X9000's with cables and control heads, three UHF MastrII mobiles, two new in the box lowband Maratracs w/accessories, one UHF Spectra Desktrac, a variety of Motorola dash mount mobiles, Alliance HD-73 rotator, a pretty little Collins KWM-1, a Heathkit SB-100 w/power supply, assorted parts, test equipment and other stuff from estates, and lots more. We're in the middle of the infield, spaces 7747-7750. Gary

Hey Folks, Long time listener first time poster. I have a situation where I would like to install a Packet station at a repeater site that is also an FM broadcast site. The repeater has an RF circulator with dummy load installed to keep FM Broadcast out of the TX side of the repeater. Is there anything that I can do to protect the packet radio ? Thanks for any and all suggestions and direction.

I need 300 feet of LDF4-50 1/2 inch heliax for a project. If I can get the heliax to the contractor soon, he will install it at a discount as he is already installing heliax for the tower owner. Thanks de David, K5RAV drwoolweaver@...

Guys, I have several pieces of galvanized 7-strand steel antenna guy wire that are looking for a new home. If anyone here wants a piece, I'll bring it with me to my fleamarket space at the Hamvention. Here is a list of the individual pieces (one of each) and my asking price: 185 Feet of 1/4" - $45 165 Feet of 1/4" - $40 58 Feet of 1/4" - $14 50 Feet of 1/4" - $12 34 Feet of 1/4" - $8 42 Feet of 5/16" - $15 Lengths shown are close, but may not be exact. I also have several end loops and splicers that work with the guy wire. If nobody is interested in any of these pieces, I won't bring them with me, so if you're interested, please let me know before Tuesday and I'll load them into my van. Otherwise, I won't bring any of them. You can email me direct to: w3dtn@... I will also have some G.E. MASTR II items, including several good 100 Watt VHF P.A.'s, 3 VHF splitter/combiners for paralleling two 100 Watt power amplifiers to get 200 Watts out, and a number of other MII items including some Bird Elex, Decibel Prod., and a lot of other stuph. Please stop by my fleamarket spaces 9404 and 9405 (at the very North end of the fleamarket, not far from the home-made icecream truck) and say "HI". Y'all have a safe trip to and from the Hamvention! 73, Gary W3DTN

Need some help debugging our repeater. Here are the Symptoms: 1) transmit drops out after 3-4 seconds. 2) TX led on 10V regulator control card stays on another few. Seconds after TX drops. 3) as long as LED is on after it drops, there is no output. 4) LED turns off and we have output power again for the 3-4 seconds, then it drops. 5) When the transmit power drops I can head a real fair click/noise that seems to come from the 10v regulator control card. Everything else seems normal. I am guessing something on the 10v Regulator Control is flaky. thoughts? Thanks, Lou K2LRV

I am looking for center pins for Andrew Heliax connectors for both 1/2 inch LDF4-50 and 7/8th inch LDF5-50. Male or female. Thanks de David, K5RAV

Does anyone know of a source for Andrew Heliax connector center pins? Thanks de David, K5RAV

Looking for Service Manual for the Midland 91-1110B Repeater. Any help would be appreciated. Thank you

I know I've written about this before but since then the threat has increased to the 222-225MHz Spectrum. The FCC has issued additional licenses to the Company "Chaos" with high powered Radar Testing in the spectrum. The first experiences we had with this was in Hermosa Beach area of Los Angeles County. Now they have new test beds in the following areas: FCC licenses issued to Chaos Industries. Please see the attached documents. WY9XPE - (222-225 MHz) Camp Atterbury, Indiana WY9XYL - (222-225 MHz) MCAS Yuma, Arizona WY9XYM - (222-225) MHz) Irwin National training Center, California WY9XWP - (228-233) MHz Desert Center, Riverside, California Apparently, these are in addition to their existing licenses, These licenses are footnoted that they must cease immediately if they cause interference to Amateur Radio operations. The FCC continues to authorize non amateur radio operations in amateur radio spectrum. If operations are of a temporary, proof-of-concept nature only and in low population areas, perhaps we could just wait. The problem it brings is precedence, which is how many mechanisms of law work. The precedent set giving way to a case being made that they have greater need for the spectrum than we, and an opportunity for the FCC to auction or otherwise reallocate the band. The problem we have, how do we 'defend' against this in these sparse population areas where 220 amateur activity is very low? We can mobilize folks as we have in our local area, but there's a whole interior of the nation where overall use is light. Especially for an off-beaten-path band like 220. This is a strategic threat requiring a strategic response. Remember, these transmitters may not be near you, however if a repeater input can see the transmitter its ability to receive a weak signal is degraded. I urge ALL repeater owners to look at these locations, if in anyway you know repeater owners who may be impacted make them aware of this threat. Today its the 220 MHz spectrum, tomorrow its 1.2GHz, 420-450MHz spectrum or even 144-148MHz, don't think companies like Choas are not thinking of that? Remember, its not a Right, its a Privilege that we can use the spectrum we do and we will have to fight to keep it. Thank you, John N. Hudson III, WA6HYQ President of the 220 Spectrum Management Association President@... iPhone:6192648934

Greetings everyone, I am new to the group and looking for help on constructing a multi-bay 70cm antenna for our repeater. I am thinking of using copper pipe for durability. I have looked in all of my antenna books but they are not helping. Does anyone have plans or information for such a project that would get me started. Thanks in advance, Dale N3DJO

These cans have a ticket they left Sinclair in 2015. Supposedly new old stock. Do they look normal inside for the age? Looks like condensation was a thing inside there at some point for the spottiness. The dark & black streaks are what has me wondering. I see some on the side walls. Also the end of the plunger tube looks black..could be solder flux? I was half tempted to take them apart to inspect more but I'm in no hurry. So I thought I'd ask the pros. I uploaded them to a folder on my qsl page. So they can be viewed in better resolution. Labeled them accordingly. https://qsl.net/n/n4fox//cans/

Hi to All, I am replacing a Failling MSR2000 VHF 100 Watts by a Tait T800 series 2 VHF 100 Watts. The receiver of the MSR is driving a Sectra-Tac board in a voting system. The new Tait Repeater as a RX Line out like the MSR but no 2175 Hz encoder. Before I take out the encoder board in the MSR and fit it in the T800... I was wondering if there is a aftermarket source for 2175 hz voting encoder board ? Or if any member did this modofication before? Best 73 Carl VA2CMB

Having some issues with my CM300 I bought a RB RIM Maxtrax USB and I've tried everything. The RB RIM shows up on the USB for the raspberry pi with allstarlink 3 but I can't get the raspberry pi to make the radio TX or RX. I've matched what was on the layout on the website for both the radio and the pi . Any help is appreciated.

> Hi all, I'm going to go in a different route with my amplifier so I have this one for sale for 550 shipped.

Selling the last Kenwood TKR-850-1 UHF repeater I have in the system. We are going to simulcasting so all repeaters needed a 10MHz reference input for the time base stability required to simulcast. As a result I have pulled non 10MHz reference input repeaters we had in service. This is the very last TKR-850 we were using and was used with an external controller however it does have internal control if desired. Not much more to say as it has worked well and been on the air over a decade. It is a version 1 that is tuned to the 447/442MHz band area right now. It is fully functional with power turned down to around 5 or 6 Watts at the present time. Rated at 25 Watts continuous duty, it has always driven an amplifier. $550 + actual shipping costs to your door CONUS 48. PayPal or Zelle preferred. Thanks for looking.

I am relisting this with a bit more detail. I have a used but like new very lightly (less than 5 hours)Kenwood Nexedge NXR 1800 403-470MHz repeater available for sale. It is less than 8 months old, works 100%. It has the plastic protector on the display, and still has the rubber cover installed on the DB25 accessory port. The repeater has been in a climate controlled and dry environment (approx. 65 degrees with approx. 25% humidity). This will have the mounting kit, repeater, power cable, box and Kenwood user guide. It has also been mounting in a repeater cabinet with plenty of cooling, and dust free. I will offer free programming for analog operation. I will ship for $1,550.00. See below for more details on this repeater. I do have another of this exact model that I am keeping, just don’t need 2 of them. I will pack securely and ship insured for the price of a new one which goes for around $2,200 Thanks for looking. Key Features Compact Analog FM Repeater Up to 40W of Output Power Clearly Visible 1.71" OLED Display IP Remote Management via Network Adapter SIP Phone Interface Up to 32 Channels Thermal-Controlled Cooling Fan USB-A for Accessories, DB25 for I/O Non-Repeat Simplex/Semi-Duplex Mode Includes Power Cable and Mounting Kit Save precious space with the NXR-1800E from Kenwood, a compact, multi-mode analog UHF/VHF wireless repeater offering up to 32 channels and up to 40W of output power. With the crystal-clear OLED display and convenient remote management via the integrated IP network and RJ45 interface, this repeater makes it easy to maintain a stable 2-way radio environment.